CN202937655U - Central main bearing mechanism of engine - Google Patents
Central main bearing mechanism of engine Download PDFInfo
- Publication number
- CN202937655U CN202937655U CN 201220527094 CN201220527094U CN202937655U CN 202937655 U CN202937655 U CN 202937655U CN 201220527094 CN201220527094 CN 201220527094 CN 201220527094 U CN201220527094 U CN 201220527094U CN 202937655 U CN202937655 U CN 202937655U
- Authority
- CN
- China
- Prior art keywords
- main bearing
- positioning
- center
- central main
- central
- 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
Links
Images
Landscapes
- Motor Or Generator Frames (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model discloses a central main bearing mechanism of an engine. The central main bearing mechanism comprises a central main bearing support, a main bearing cap facing to the opening of the central main bearing support and fixed in a matching manner, an upper half main bearing and a lower half main bearing, wherein the upper half main bearing and the lower half main bearing are arranged in the central main bearing support and the main bearing cap respectively; the central main bearing support and the upper half main bearing are positioned through a positioning groove and a positioning lip; turned-over edges extend from the two sides of the upper half main bearing to the arc-shaped outer side and are jointed with the two sides of the central main bearing support; a positioning notch is formed at the edge of the upper half main bearing, which is in contact with the lower half main bearing; and a positioning bulge matched with the positioning notch is formed on the lower half main bearing. The utility model aims to solve the problem that at present, a central main bearing mechanism is required to be provided with a backstop piece so as to be limited, so that fixing is not stable, and friction is generated by rotary contact, and provides the central main bearing mechanism of the engine, which can be limited by self.
Description
Technical field
The utility model relates to technical field of engines, relates in particular to a kind of motor center main bearing mechanism.
Background technique
In current motor, the fixing mode that generally adopts locating slot to coordinate with retention Hp for center main bearing, cover the processing locating slot at center main bearing seat and center main bearing, process retention Hp on first main bearing and second main bearing, by retention Hp and coordinating of locating slot first main bearing and second main bearing being positioned in center main bearing seat and center main bearing lid.As license publication number CN201563546A, notice of authorization day is on October 21st, 2009, and patent name is the crankshaft bearing arrangement of internal-combustion engine, comprising: the bearing that is arranged on the bent axle place of internal-combustion engine; For holding the bearing support of bearing; And for sealing the seal arrangement of bent axle and bearing support.At least one part of bearing support has the reinforcer be arranged in bearing support, and the surface that leans bearing of a part of bearing support is made by plastic materials.Such structure; in the center main bearing both sides, usually also to assemble retaining sheet with the limiting engine bent axle axial float in operation process; internal-combustion engine retaining sheet commonly used is symmetrically arranged; assembly process is loaded down with trivial details and easily cause the positive and negative wrongly installed of retaining sheet; like this; in the internal combustion engine operation process, also easily cause retaining sheet to follow bent axle and rotate together, retaining sheet can with bent axle, cylinder block rotating contact, frictional force can increase.
Summary of the invention
The utility model need arrange retaining sheet and has fixing unstable, rotating contact and produce the problem of friction center main bearing is spacing in order to solve current center main bearing mechanism, propose a kind of can self spacing motor center main bearing mechanism.
To achieve these goals, the utility model is by the following technical solutions:
A kind of motor center main bearing of the present utility model mechanism, comprise the center main bearing seat, relative with center main bearing seat mouth and be fixed main bearing cap, be located at first main bearing and second main bearing in center main bearing seat and main bearing cap, between center main bearing seat and first main bearing by being provided with locating slot, retention Hp location, described first main bearing both sides of the edge are extended with flange towards the arc outside, flange and the laminating of center main bearing seat both sides; Described first main bearing up and down half main bearing contact edge is provided with positioning recess, and second main bearing is provided with the positioning convex coordinated with positioning recess.Flange by first main bearing coordinates with the both sides veneer of center main bearing seat, by first main bearing axial limiting; Coordinate with retention Hp by the locating slot arranged between first main bearing and center main bearing seat, limit first main bearing and rotate in a circumferential direction, second main bearing dieback is arranged again at top, makes first main bearing be completely restricted on the center main bearing seat; Be provided with the matching mechanism of positioning convex and positioning recess between second main bearing and first main bearing, there is again the main bearing cap restriction in second main bearing outside, makes second main bearing also limited, thereby realizes that whole main bearing stably is fixed on the center main bearing seat.
As preferably, described positioning convex is rectangular.The design of rectangle make between positioning convex and positioning recess be fixed more stable, more firm.
As preferably, described positioning recess opening is provided with guide structure.Facilitate installation, the location of positioning convex.
As preferably, the positioning convex of second main bearing coordinates with the positioning recess of first main bearing.Make fixing more firm between second main bearing and first main bearing, not there will be and rock or be shifted.
Therefore, the utlity model has following beneficial effect: the edge of (1) first main bearing is provided with flange, can be own spacing; (2) be provided with positioning recess and positioning convex cooperating structure, the processing of saving second main bearing retention Hp between first main bearing and second main bearing; (3) simple in structure, global stability is good.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the utility model decomposing state.
Fig. 2 is a kind of structural representation of the utility model center main bearing seat.
Fig. 3 is a kind of structural representation of first main bearing of the utility model.
Fig. 4 is a kind of structural representation of second main bearing of the utility model.
1: bolt; 2: main bearing cap; 3: guide; 4: second main bearing; 5: first main bearing; 6: the center main bearing seat; 7: cylinder block; 8: locating slot; 9: retention Hp; 10: positioning recess; 11: positioning convex; 12: flange.
Embodiment
Below in conjunction with accompanying drawing and specific embodiments, the utility model is further described.
A kind of motor center main bearing mechanism, referring to Fig. 1--4, comprise center main bearing seat 6, relative with center main bearing seat 6 openings and be fixed main bearing cap 2, be located at first main bearing 5 and second main bearing 4 in center main bearing seat 6 and main bearing cap 2, between center main bearing seat 6 and first main bearing 5, by being provided with locating slot 8, retention Hp 9 location, described first main bearing 5 both sides of the edge are extended with flange 12 towards the arc outside, flange 12 and the 6 both sides laminatings of center main bearing seat; Described first main bearing 5 up and down half main bearing 4 contact edges are provided with positioning recess 10, and second main bearing 4 is provided with the positioning convex 11 coordinated with positioning recess 10; Described positioning convex 11 is rectangular; Described positioning recess 10 openings are provided with guide structure; The positioning convex 11 of second main bearing 4 coordinates with the positioning recess 10 of first main bearing 5.
While installing fixedly, the retention Hp 9 that first will be provided with first main bearing 5 of flange 12 is pressed in the locating slot 8 on center main bearing seat 6, and the flange 12 of first main bearing 5 and the 6 both sides laminatings of center main bearing seat, to realize axially locating and circumferential location; Thereby the location that coordinates assembling to realize second main bearing 4 with positioning recess 10 on first main bearing 5 positioning convex 11 on second main bearing 4 again; Finally main bearing cap 2 is fastened on center main bearing seat 6 and gets final product by bolt 1 and guide 3.
Claims (4)
1. a motor center main bearing mechanism, comprise center main bearing seat (6), relative with center main bearing seat (6) opening and be fixed main bearing cap (2), be located at first main bearing (5) and second main bearing (4) in center main bearing seat (6) and main bearing cap (2), between center main bearing seat (6) and first main bearing (5) by being provided with locating slot (8), retention Hp (9) location, it is characterized in that: described first main bearing (5) both sides of the edge are extended with flange (12) towards the arc outside, flange (12) and the laminating of center main bearing seat (6) both sides, described first main bearing (5) up and down half main bearings (4) contact edge is provided with positioning recess (10), and second main bearing (4) is provided with the positioning convex (11) coordinated with positioning recess (10).
2. a kind of motor center main bearing according to claim 1 mechanism, it is characterized in that: described positioning convex (11) is rectangular.
3. a kind of motor center main bearing according to claim 1 mechanism, it is characterized in that: described positioning recess (10) opening is provided with guide structure.
4. according to claim 1 or 2 or 3 described a kind of motor center main bearing mechanisms, it is characterized in that: the positioning convex (11) of second main bearing (4) coordinates with the positioning recess (10) of first main bearing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527094 CN202937655U (en) | 2012-10-16 | 2012-10-16 | Central main bearing mechanism of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527094 CN202937655U (en) | 2012-10-16 | 2012-10-16 | Central main bearing mechanism of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937655U true CN202937655U (en) | 2013-05-15 |
Family
ID=48321895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220527094 Expired - Fee Related CN202937655U (en) | 2012-10-16 | 2012-10-16 | Central main bearing mechanism of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355307A (en) * | 2017-09-06 | 2017-11-17 | 广西玉柴机器股份有限公司 | Cylinder block main shaft bearing structure |
-
2012
- 2012-10-16 CN CN 201220527094 patent/CN202937655U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355307A (en) * | 2017-09-06 | 2017-11-17 | 广西玉柴机器股份有限公司 | Cylinder block main shaft bearing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202937655U (en) | Central main bearing mechanism of engine | |
| CN204696842U (en) | Motor with a stator having a stator core | |
| KR101930090B1 (en) | Motor for Vehicle | |
| CN202395574U (en) | Motor end cap and housing assembling structure | |
| CN103782020A (en) | Seal structure for fuel pump | |
| CN108155763B (en) | Rotary transformer mounting structure of motor | |
| CN201204507Y (en) | DC brushless outer rotor motor | |
| CN104633890B (en) | Stabilizing device of motor rotating shaft, panel assembly and air conditioner | |
| CN208107163U (en) | Mechanical seal | |
| CN103683586B (en) | Motor rotor and envelope magnetic part thereof | |
| CN201771822U (en) | Through equal-spoke pulley water pump | |
| JP2015534442A (en) | Method for grounding electrical components | |
| CN202593623U (en) | Steering rocker arm assembly structure | |
| CN106523064B (en) | Flat spiral spring fixing device for cam phaser | |
| CN205298685U (en) | Check valve and compressor with same | |
| KR20150039353A (en) | Spindle motor and hard disk drive including the same | |
| CN202565071U (en) | Novel structure for connection of electric vehicle drive motor end cover and machine base | |
| CN207701608U (en) | A kind of bearing with axial pretightening collocation structure | |
| CN107819381B (en) | Electromagnetic brake mounting structure | |
| JP2012093101A (en) | Resolver rotor fixing structure | |
| CN208816683U (en) | A kind of vehicle steering shaft dust protector | |
| CN100572137C (en) | A kind of automobile chair sliding track protecting cover and installation method thereof | |
| CN202309309U (en) | Motor end cover assembling structure | |
| CN214007351U (en) | Engine and vehicle with engine | |
| CN205725288U (en) | A kind of motor |
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: 20130515 Termination date: 20201016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |