CN2409019Y - Hydraulic drawing machine for bolt of main bearing of diesel engine - Google Patents
Hydraulic drawing machine for bolt of main bearing of diesel engine Download PDFInfo
- Publication number
- CN2409019Y CN2409019Y CN 00210751 CN00210751U CN2409019Y CN 2409019 Y CN2409019 Y CN 2409019Y CN 00210751 CN00210751 CN 00210751 CN 00210751 U CN00210751 U CN 00210751U CN 2409019 Y CN2409019 Y CN 2409019Y
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- CN
- China
- Prior art keywords
- cylinder body
- hole
- piston
- bolt
- diesel engine
- 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.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a hydraulic drawing machine for bolts of main bearings of diesel engines, which comprises a cylinder body (2) and a piston (4) arranged in the cylinder body. Sealing rings (3), (5) are installed between the cylinder body and the piston, and a scallop-shaped groove (1) and an oil inlet hole (10) are arranged on the side wall of the lower half part of the cylinder body. The utility model is characterized in that a drawing screw nut (8), the center of which is provided with a multi-side hole (9) and a threaded hole (11), is installed in a hole of the piston (4), and a screw plug (7), the lower end face of which is provided with a sealing ring (6), is installed in a gas outlet hole of the piston (4). The utility model has the advantages of reasonable structure, labor-saving operation, convenience and safety.
Description
The utility model relates to a kind of diesel engine main bearing bolt hydraulic elongator, is particularly useful for when the assembling diesel engine main bearing, to the prestretched of Main bearing bolt.
, need base bearing be fixed on the diesel-engine body during diesel engine in assembling, before the nut on the bolt is tightened, need to use a kind of bolt tension device earlier bolt to be carried out after the prestretched fastening nut again with bolt.At present at the used a kind of bolt tension device of erecting yard, because wherein piston and stretching nut are overall structure, need earlier the stretching nut of this device be screwed on the bolt that desire stretches with artificial during operation, when the stretching nut rotates, with it is the also rotation thereupon of piston of one, because the external cylindrical surface of piston and the rubbing action of the sealing ring between cylinder bore make manually-operated require great effort, meanwhile, the wearing and tearing of sealing ring have also been quickened.In addition, the stifled sealing ring of exhaust in the former stretching device is to be contained on this stifled external cylindrical surface, because the residual pressure after this stretching device work is very high, screw plug lower end area is relatively large, and is therefore very dangerous when needing with the residual gas in this screw plug eliminating cylinder body.
The new diesel engine main bearing bolt hydraulic elongator that the utility model relates to, its purpose will overcome the manually-operated effort exactly, reduce the wearing and tearing of sealing ring, operation safe.
The diesel engine main bearing bolt hydraulic elongator that the utility model relates to, comprise cylinder body and be installed in the interior piston of this cylinder body, the sealing ring that adapts with the outside piston cylinder is housed respectively on the sidewall in the stepped hole of the described cylinder body first half, on the sidewall of described cylinder body Lower Half, have fan groove along its cross-sectional distribution, on described cylinder body, have fuel feed hole, be characterized in: the stretching nut is housed in the hole of piston, the first half at this nut center has polygon hole, the screwed hole that its Lower Half has and the screw thread of the bolt that is stretched is complementary, in the steam vent of piston, screw plug is housed, between the annular bottom surface in screw plug and its hole, place, sealing ring is housed.
The diesel engine main bearing bolt hydraulic elongator that the utility model relates to, through the installation probationary certificate, because stretching nut in this hydraulic elongator and piston are for dividing body structure, when manually the stretching nut being screwed on the bolt that desire stretches, the piston nut transfixion that stretches relatively, removed the friction with sealing ring from, can reduce wearing and tearing, made rapid operation sealing ring; When utilizing exhaust blocking gas, because sealing ring is positioned on the lower surface of screw plug, dwindled bearing area relatively, made the stagnation pressure reduction that acts on the screw plug, screw plug is difficult for flying out from steam vent during operation, and is therefore safer.
Fig. 1 is the installation diagram of the diesel engine main bearing bolt hydraulic elongator that relates to of the utility model.
Fig. 2 is the partial enlarged drawing of A portion among Fig. 1.
Now details are as follows to the embodiment of the related sealing device for rotary shaft of the utility model in conjunction with the accompanying drawings:
As depicted in figs. 1 and 2, the diesel engine main bearing bolt hydraulic elongator that the utility model relates to, comprise cylinder body 2 and be installed in the interior piston 4 of this cylinder body, the sealing ring 3 and 5 that adapts with the outside piston cylinder is housed respectively on the sidewall in the stepped hole of the described cylinder body first half, on the sidewall of described cylinder body Lower Half, have fan groove 1 along its cross-sectional distribution, on described cylinder body, have fuel feed hole 10, be characterized in: stretching nut 8 is housed in the hole of piston 4, the first half at this nut center has hexagon hole 9, the screwed hole 11 that its Lower Half has and the screw thread of the bolt that is stretched is complementary, screw plug 7 is housed in the steam vent of piston 4, between the annular bottom surface in screw plug 7 and its hole, place, sealing ring 6 is housed.
During the assembling diesel engine main bearing, the stretching nut of hydraulic elongator is screwed to the Main bearing bolt head of preparation stretching with hexagon, make the threaded engagement of the screwed hole and the bolt of this nut, injection pressure oil in cylinder body again, under the effect of pressure oil, to move on the relative cylinder body of piston, piston drove on the stretching nut and moved this moment, bolt is upwards elongated, and then be inserted into by the fan groove on the cylinder body with driving lever in the circumferential hole of the round nut on the bolt nut check.
Claims (2)
1 one kinds of diesel engine main bearing bolt hydraulic elongators, comprise cylinder body (2) and be installed in the interior piston (4) of this cylinder body, the sealing ring (3) and (5) that adapt with the outside piston cylinder are housed respectively on the sidewall in the stepped hole of the described cylinder body first half, on the sidewall of described cylinder body Lower Half, have fan groove (1) along its cross-sectional distribution, on described cylinder body, have fuel feed hole (10), it is characterized in that: stretching nut (8) is housed in the hole of piston (4), the first half at this nut center has polygon hole (9), the screwed hole (11) that its Lower Half has and the screw thread of the bolt that is stretched is complementary is equipped with screw plug (7) in the steam vent of piston (4).
2 diesel engine main bearing bolt hydraulic elongators according to claim 1 is characterized in that: sealing ring (6) is housed between the annular bottom surface in screw plug (7) and its hole, place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210751 CN2409019Y (en) | 2000-01-27 | 2000-01-27 | Hydraulic drawing machine for bolt of main bearing of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210751 CN2409019Y (en) | 2000-01-27 | 2000-01-27 | Hydraulic drawing machine for bolt of main bearing of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2409019Y true CN2409019Y (en) | 2000-12-06 |
Family
ID=33577579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00210751 Expired - Fee Related CN2409019Y (en) | 2000-01-27 | 2000-01-27 | Hydraulic drawing machine for bolt of main bearing of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2409019Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552142A (en) * | 2014-11-28 | 2015-04-29 | 南车青岛四方机车车辆股份有限公司 | Detaching tool for axle box cover of bogie |
| CN104816276A (en) * | 2015-05-01 | 2015-08-05 | 柳州市瑞日信息科技有限公司 | Motherboard installer |
| CN105082058A (en) * | 2014-05-07 | 2015-11-25 | 中建筑港集团有限公司 | Abutting apparatus for reinforcing steel bars |
| CN105881443A (en) * | 2016-05-16 | 2016-08-24 | 深圳市华星光电技术有限公司 | Mounting device and mounting method for gas chromatography sampling pad |
| CN106217298A (en) * | 2016-08-18 | 2016-12-14 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of attaching/detaching apparatus of high-pressure turbine front apron |
| CN106217300A (en) * | 2016-08-18 | 2016-12-14 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of retainer erecting device |
| CN106312920A (en) * | 2016-08-18 | 2017-01-11 | 中国航空工业集团公司沈阳发动机设计研究所 | Retainer mounting and dismounting device |
| CN107234586A (en) * | 2017-06-05 | 2017-10-10 | 上海航天测控通信研究所 | A kind of dismounting frock and assembly and disassembly methods suitable for phased array antenna transceiver module |
-
2000
- 2000-01-27 CN CN 00210751 patent/CN2409019Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082058A (en) * | 2014-05-07 | 2015-11-25 | 中建筑港集团有限公司 | Abutting apparatus for reinforcing steel bars |
| CN105082058B (en) * | 2014-05-07 | 2017-03-15 | 中建筑港集团有限公司 | A kind of steel reinforcement abutting joints utensil |
| CN104552142A (en) * | 2014-11-28 | 2015-04-29 | 南车青岛四方机车车辆股份有限公司 | Detaching tool for axle box cover of bogie |
| CN104552142B (en) * | 2014-11-28 | 2017-01-04 | 中车青岛四方机车车辆股份有限公司 | A kind of bogie axle case lid extracting tool |
| CN104816276A (en) * | 2015-05-01 | 2015-08-05 | 柳州市瑞日信息科技有限公司 | Motherboard installer |
| CN105881443A (en) * | 2016-05-16 | 2016-08-24 | 深圳市华星光电技术有限公司 | Mounting device and mounting method for gas chromatography sampling pad |
| CN106217298A (en) * | 2016-08-18 | 2016-12-14 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of attaching/detaching apparatus of high-pressure turbine front apron |
| CN106217300A (en) * | 2016-08-18 | 2016-12-14 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of retainer erecting device |
| CN106312920A (en) * | 2016-08-18 | 2017-01-11 | 中国航空工业集团公司沈阳发动机设计研究所 | Retainer mounting and dismounting device |
| CN106217300B (en) * | 2016-08-18 | 2018-07-13 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of retainer mounting device |
| CN107234586A (en) * | 2017-06-05 | 2017-10-10 | 上海航天测控通信研究所 | A kind of dismounting frock and assembly and disassembly methods suitable for phased array antenna transceiver module |
| CN107234586B (en) * | 2017-06-05 | 2018-10-19 | 上海航天测控通信研究所 | A kind of dismounting tooling and assembly and disassembly methods suitable for phased array antenna transceiver module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |