CN209180242U - A kind of main bearing mounting structure and diesel engine of marine low speed diesel engine - Google Patents
A kind of main bearing mounting structure and diesel engine of marine low speed diesel engine Download PDFInfo
- Publication number
- CN209180242U CN209180242U CN201821789625.0U CN201821789625U CN209180242U CN 209180242 U CN209180242 U CN 209180242U CN 201821789625 U CN201821789625 U CN 201821789625U CN 209180242 U CN209180242 U CN 209180242U
- Authority
- CN
- China
- Prior art keywords
- main
- diesel engine
- bearing
- mounting structure
- main bearing
- 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
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model belongs to Diesel Engine Technique Field, specifically discloses the main bearing mounting structure and diesel engine of a kind of marine low speed diesel engine.Main bearing mounting structure disclosed by the utility model includes main beating cap and main bearing seat, it is characterized in that, the main beating cap is connect using a pair of first bolt thread in the longitudinal direction with the main bearing seat, the main beating cap is horizontally connect using a pair of second bolt thread with the main bearing seat, and first bolt is located at the inside of second bolt.Diesel engine disclosed by the utility model, including above-mentioned main bearing mounting structure.Main bearing mounting structure and diesel engine disclosed by the utility model can be improved the structural strength and structural stability of main bearing mounting structure, improve the connective stability of diesel engine.
Description
Technical field
The utility model relates to a kind of installations of the base bearing of Diesel Engine Technique Field more particularly to marine low speed diesel engine to tie
Structure and diesel engine.
Background technique
The effect of diesel engine main bearing is support crankshaft, guarantees crankshaft normal operation and power output.Marine low-speed diesel oil
The main bearing mounting structure of machine generally comprises: main bearing seat, main beating cap and main bearing shell, and main bearing seat is mounted on the machine of diesel engine
On frame, main beating cap is connected on main bearing seat by screw bolt and nut.
Existing main beating cap is fixed on the conventional mounting structure on main bearing seat: longitudinal threaded bore is provided on bearing block,
Longitudinal threaded bore is correspondingly arranged in main beating cap, longitudinal threaded bore of the Main bearing bolt on bearing block and bearing cap will be led
It is connected between bearing block and main beating cap, and by hydraulic elongator, tightens nut.
The main bearing mounting structure of existing marine low speed diesel engine is easy when main bearing seat and main beating cap are installed
Occur generating installation site offset due to being not allowed because positioning, to cause Main bearing bolt deformation and bearing shell impaired；And diesel engine is transported
After row a period of time, the long-time vibration of diesel engine will lead to Main bearing bolt deformation or fracture, increase engine maintenance maintenance
Difficulty.
Utility model content
One of the utility model is designed to provide a kind of main bearing mounting structure of marine low speed diesel engine, improves master
The installation strength of bearing mounting structure reduces the failure rate of main bearing mounting structure.
Another of the utility model is designed to provide a kind of diesel engine, improves the installation strength of diesel engine, improves bavin
The operational reliability of oil machine.
To achieve the above object, the utility model adopts the following technical solutions:
A kind of main bearing mounting structure of marine low speed diesel engine, including main beating cap and main bearing seat, the base bearing
Lid is connect using a pair of first bolt thread in the longitudinal direction with the main bearing seat, and the main beating cap and the main bearing seat exist
Using a pair of second bolt thread connection in transverse direction, first bolt is located at the inside of second bolt.
Further, longitudinal threaded bore and cross through hole are offered on the main bearing seat, the main beating cap corresponds to institute
The position for stating longitudinal threaded bore offers the longitudinal hole cooperated with the longitudinal threaded bore, and the main beating cap corresponds to the cross
The lateral threaded holes cooperated with the cross through hole, the longitudinal threaded bore and the longitudinal hole are offered to the position of through-hole
It is bolted by described first, the lateral threaded holes are bolted with the cross through hole by described second.
Further, the main bearing seat and main beating cap fastening are formed with circular bearing hole, and a pair of described the
The relatively described bearing hole of one bolt is symmetrical arranged.
Further, a pair of relatively described bearing hole of second bolt is symmetrical arranged.
Further, first bolt and second bolt are hydraulic bolt.
Further, the side of the main bearing seat towards the main beating cap offers the first semi arch hole, the master
The side of bearing cap towards the main bearing seat offers the second semi arch hole, first semi arch hole and second semicircle
Arc hole fastens to form bearing hole.
Further, the main bearing mounting structure further include: main bearing shell, the main bearing shell include the in semicircular arc
One bearing shell and the second bearing shell, the outer diameter of first bearing shell and the diameter in first semi arch hole are interference fitted, and described second
The outer diameter of bearing shell and the diameter in second semi arch hole are interference fitted.
Further, lubricant passage way is offered in the main beating cap, the lubricant passage way is connected to first bearing shell.
Further, the main beating cap is provided with oil circuit connector far from one end of first bearing shell, and the oil circuit connects
Head is located at the surface of first bearing shell.
A kind of diesel engine, which is characterized in that the main bearing mounting structure including marine low speed diesel engine as described above.
The utility model has the beneficial effects that:
Main bearing mounting structure provided by the utility model passes through the second bolt being laterally arranged and longitudinally disposed first
The connection of main beating cap and main bearing seat is realized in bolt cooperation, can be strengthened the connection structure of main beating cap and main bearing seat, be kept away
Exempt to generate relative offset between main beating cap and main bearing seat, reduce the probability that bolt deforms and bearing shell is impaired, improves master
The connective stability and reliability of bearing mounting structure improve the service life of main bearing mounting structure, reduce staff and tear open
The workload of checking maintenance reduces the operation cost of the maintenance of main bearing mounting structure.
Diesel engine provided by the utility model improves the knot of diesel engine by using above-mentioned main bearing mounting structure
Structure stability and reliability.
Detailed description of the invention
Fig. 1 is the section signal of the main bearing mounting structure of marine low speed diesel engine provided by the embodiment of the utility model
Figure.
It is marked in figure as follows:
1- main bearing seat；11- interconnecting piece；2- main beating cap；The first bolt of 3-；The second bolt of 4-；5- lubricant passage way；6- oil
Pipeline connector；The first bearing shell of 7-；The second bearing shell of 8-.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is the main bearing mounting structure of marine low speed diesel engine provided by the embodiment of the utility model, as shown in Figure 1,
Present embodiments provide a kind of mounting structure of base bearing, the primary installation for base bearing in marine low speed diesel engine.Main shaft
Holding mounting structure includes: main bearing seat 1, main beating cap 2 and main bearing shell.Main beating cap 2 and main bearing seat 1 are buckled up and down by bolt
Connection is closed, main bearing seat 1 is arranged in main bearing shell and main beating cap 2 fastens in the circular shaft bearing bore formed, for accepting diesel engine
Crankshaft.
Specifically, main bearing seat 1 is vertically installed in the rack of diesel engine, and the upper surface of main bearing seat 1 has opening court
On the first semi arch hole, opposite sides of the main bearing seat 1 in the first semi arch hole offer the longitudinal threaded bore being vertically arranged.
Opposite sides of the main bearing seat 1 in the first semi arch hole is upward convex to be equipped with interconnecting piece 11, and first longitudinal direction threaded hole is located at interconnecting piece
11 inside, and horizontally disposed cross through hole is offered on each interconnecting piece 11.
The lower end surface of main beating cap 2 abuts connection with the upper surface of main bearing seat 1, and the lower end surface of main beating cap 2, which has, opens
Second semi arch hole of mouth down, the position and aperture in the second semi arch hole are corresponding with the first semi arch hole, make main beating cap 2 with
Main bearing seat 1 is fastened and connected and makes, and the first semi arch hole and the second semi arch hole fasten to form complete circular shaft bearing bore, for pacifying
Fill main bearing shell.
The position of the corresponding longitudinal threaded bore of main beating cap 2 offers longitudinal hole, longitudinal threaded bore and longitudinal hole vertically
Aperture be adapted, and by the first bolt 3 be cooperatively connected.One end of first bolt 3 protrude into longitudinal threaded bore with, longitudinal spiral shell
Pit is threadedly coupled, and the other end stretches out the upper surface of main beating cap 2, and the first bolt 3 stretches out the part of 2 upper surface of main beating cap
It is arranged with the first nut, for locking the first bolt 3.
The position of the corresponding cross through hole of main beating cap 2 offers lateral threaded holes, and the aperture of lateral threaded holes leads to lateral
The aperture in hole is adapted, and lateral threaded holes and cross through hole are cooperatively connected using the second bolt 4.By be laterally arranged second
The connection of main beating cap 2 and main bearing seat 1 is realized in bolt 4 and the first longitudinally disposed bolt 3 cooperation, can strengthen main beating cap
2 with the connection structure of main bearing seat 1, avoid generating relative offset between main beating cap 2 and main bearing seat 1, reduce bolt
The probability that deformation and bearing shell are damaged, improves the connective stability and reliability of main bearing mounting structure, improves base bearing installation knot
The service life of structure reduces the workload that staff opens and inspect maintenance, reduces the operation of the maintenance of main bearing mounting structure
Cost.
In the present embodiment, two the first bolts 3 and two the second bolts 4 are symmetrical arranged with respect to bearing hole, are conducive to
Make two the first bolts 3 and two 4 uniform forces of the second bolt, improves the connective stability of the first bolt 3 and the second bolt 4.
In the present embodiment, two the first bolts 3 are hydraulic bolt, can be by hydraulic elongator to the first bolt 3
It is installed and is locked with the second bolt 4, improve the connective stability of the first bolt 3 and the second bolt 4.
In the present embodiment, main bearing shell includes the first bearing shell 7 and the second bearing shell 8, and the first bearing shell 7 and the second bearing shell 8 are
Semicircular arc, the two fasten the main bearing shell to form circular ring shape.First bearing shell 7 is connected in the first semi arch hole of main bearing seat 1,
And its outer diameter and the first semi arch hole internal diameter are interference fitted；Second bearing shell 8 is connected in the second semi arch hole of main beating cap 2,
And second bearing shell 8 outer diameter and the second semi arch hole diameter be interference fitted.The internal diameter of first bearing shell 7 is interior with the second bearing shell 8
Diameter is identical, fastens the first bearing shell 7 and the second bearing shell 8 and is formed for wearing the axis hole for connecing crankshaft.
It is provided with lubricant passage way 5 in main beating cap 2, for injecting lubricating oil to the surface of main bearing shell, makes the table of main bearing shell
Face forms wedge-shaped oil film, to reach the lubricating action of bearing shell.Lubricant passage way 5 is provided with oil in the end face entrance of main beating cap 2
Pipeline connector 6, oil circuit connector 6 are arranged in the surface of main beating cap 2, are conducive to be vertically arranged lubricant passage way 5, and facilitate connection
Oil pipe.
In the present embodiment, main beating cap 2 is located at the top of main bearing seat 1, but in other embodiments, main bearing seat 1
The lower section of main bearing seat 1 can be located at, at this point, Each part is corresponding with the different location of main bearing seat 1 according to main beating cap 2
Setting, the present embodiment are no longer repeated.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (10)
1. a kind of main bearing mounting structure of marine low speed diesel engine, including main beating cap (2) and main bearing seat (1), feature
It is, the main beating cap (2) is threadedly coupled using a pair of first bolt (3) in the longitudinal direction with the main bearing seat (1), described
Main beating cap (2) is horizontally threadedly coupled using a pair of second bolt (4) with the main bearing seat (1), first bolt
(3) it is located at the inside of second bolt (4).
2. a kind of main bearing mounting structure of marine low speed diesel engine according to claim 1, which is characterized in that the master
Longitudinal threaded bore and cross through hole, the position of the corresponding longitudinal threaded bore of the main beating cap (2) are offered on bearing block (1)
The longitudinal hole with longitudinal threaded bore cooperation is offered, the position of the corresponding cross through hole of the main beating cap (2) is opened
Equipped with the lateral threaded holes cooperated with the cross through hole, the longitudinal threaded bore and the longitudinal hole pass through first spiral shell
Bolt (3) connection, the lateral threaded holes are connect with the cross through hole by second bolt (4).
3. a kind of main bearing mounting structure of marine low speed diesel engine according to claim 1, which is characterized in that the master
Bearing block (1) and the main beating cap (2), which fasten, is formed with circular bearing hole, and a pair of first bolt (3) is relatively described
Bearing hole is symmetrical arranged.
4. a kind of main bearing mounting structure of marine low speed diesel engine according to claim 3, which is characterized in that Yi Duisuo
The relatively described bearing hole of the second bolt (4) is stated to be symmetrical arranged.
5. a kind of main bearing mounting structure of marine low speed diesel engine according to claim 1, which is characterized in that described
One bolt (3) and second bolt (4) are hydraulic bolt.
6. a kind of main bearing mounting structure of marine low speed diesel engine according to claim 1, which is characterized in that the master
The side of bearing block (1) towards the main beating cap (2) offers the first semi arch hole, and the main beating cap (2) is described in
The side of main bearing seat (1) offers the second semi arch hole, and first semi arch hole and second semi arch hole fasten shape
At bearing hole.
7. a kind of main bearing mounting structure of marine low speed diesel engine according to claim 6, which is characterized in that the master
Bearing mounting structure further include: main bearing shell, the main bearing shell include the first bearing shell (7) and the second bearing shell (8) in semicircular arc,
The outer diameter of first bearing shell (7) and the diameter in first semi arch hole are interference fitted, the outer diameter of second bearing shell (8) with
The diameter in second semi arch hole is interference fitted.
8. a kind of main bearing mounting structure of marine low speed diesel engine according to claim 7, which is characterized in that the master
It is offered on bearing cap (2) lubricant passage way (5), the lubricant passage way (5) is connected to first bearing shell (7).
9. a kind of main bearing mounting structure of marine low speed diesel engine according to claim 8, which is characterized in that the master
Bearing cap (2) is provided with oil circuit connector (6) far from one end of first bearing shell (7), and the oil circuit connector (6) is located at described the
The surface of one bearing shell (7).
10. a kind of diesel engine, which is characterized in that the master including such as described in any item marine low speed diesel engines of claim 1-9
Bearing mounting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821789625.0U CN209180242U (en) | 2018-10-31 | 2018-10-31 | A kind of main bearing mounting structure and diesel engine of marine low speed diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821789625.0U CN209180242U (en) | 2018-10-31 | 2018-10-31 | A kind of main bearing mounting structure and diesel engine of marine low speed diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209180242U true CN209180242U (en) | 2019-07-30 |
Family
ID=67363056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821789625.0U Active CN209180242U (en) | 2018-10-31 | 2018-10-31 | A kind of main bearing mounting structure and diesel engine of marine low speed diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209180242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614389A (en) * | 2019-10-21 | 2019-12-27 | 大连船用柴油机有限公司 | Boring processing method for crosshead bearing cover of large-scale low-speed marine diesel engine |
| CN113638971A (en) * | 2021-07-15 | 2021-11-12 | 泰州市华宇轴瓦有限公司 | Wear-resisting type axle bush convenient to location equipment |
-
2018
- 2018-10-31 CN CN201821789625.0U patent/CN209180242U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614389A (en) * | 2019-10-21 | 2019-12-27 | 大连船用柴油机有限公司 | Boring processing method for crosshead bearing cover of large-scale low-speed marine diesel engine |
| CN110614389B (en) * | 2019-10-21 | 2021-01-22 | 大连船用柴油机有限公司 | Boring processing method for crosshead bearing cover of large-scale low-speed marine diesel engine |
| CN113638971A (en) * | 2021-07-15 | 2021-11-12 | 泰州市华宇轴瓦有限公司 | Wear-resisting type axle bush convenient to location equipment |
| CN113638971B (en) * | 2021-07-15 | 2022-08-05 | 泰州市华宇轴瓦有限公司 | Wear-resisting type axle bush convenient to location equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209180242U (en) | A kind of main bearing mounting structure and diesel engine of marine low speed diesel engine | |
| EP1091093A3 (en) | Fastening arrangement for a split flangeless casing | |
| CN100470064C (en) | Thread fixing structure of thermal-state magnesium alloy component | |
| CN101614233A (en) | Prevent the method that rotates when nut is fastening and the riveting axle self-locking nut of belt material plate | |
| CN205476991U (en) | Cavity resilience external -open handle | |
| CN203500245U (en) | Self-locking nut for bearing location | |
| CN105298410B (en) | A kind of tool joint | |
| CN204489887U (en) | Band conveyor guide pulley | |
| CN103868033B (en) | Switching device, lighting device and switching device for adjusting lamp installing angle | |
| CN110145534A (en) | A kind of connecting rod on engine crankshaft | |
| CN209262013U (en) | Anti-loosening nut | |
| CN208041095U (en) | A kind of vertical type single-cylinder diesel engine idle gear combined compouent mechanism | |
| CN206455988U (en) | A kind of pair of guide rail horizontal drag method and its device | |
| CN201661599U (en) | Novel external spherical ball bearing with concentric cover | |
| CN207343603U (en) | A kind of self-lubricating guide part | |
| CN208252558U (en) | A kind of flange Ball faced nut | |
| CN202266560U (en) | Improved locknut | |
| CN206655782U (en) | Antifatigue blower fan main shaft and the wind-driven generator using the blower fan main shaft | |
| CN105780644A (en) | Intelligent continuous turning spherical hinge | |
| CN206000903U (en) | A kind of drum brake hoof pin | |
| CN201224849Y (en) | Screw thread connection structure for high fatigue strength steel rail | |
| CN111342410A (en) | Solid die forging aluminum alloy anti-loosening damping wire clamp | |
| CN211116154U (en) | Fixing device capable of quickly adjusting mounting clearance of sensor | |
| CN211649722U (en) | Reinforced anti-drop external toothed channel | |
| CN107448465A (en) | A kind of fastening-type check bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |