CN203343841U - Main engine air valve grinding device - Google Patents
Main engine air valve grinding device Download PDFInfo
- Publication number
- CN203343841U CN203343841U CN 201320363227 CN201320363227U CN203343841U CN 203343841 U CN203343841 U CN 203343841U CN 201320363227 CN201320363227 CN 201320363227 CN 201320363227 U CN201320363227 U CN 201320363227U CN 203343841 U CN203343841 U CN 203343841U
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- belt pulley
- supporting plate
- belt
- air valve
- cam
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Abstract
The utility model discloses a main engine air valve grinding device which comprises a framework part, a transmission part and a power part. The framework part and the power part are connected through the transmission part. The framework part comprises a supporting plate, four threaded stand columns, a base, four adjusting discs and a plurality of bolts. The supporting plate is in a square shape, and four through holes are formed in the four corners of the supporting plate. The four threaded stand columns respectively penetrate through one through hole and are fixed at the four corners of the base through the bolts. The supporting plate is arranged in the middle part of the four threaded stand columns. A center hole is formed in the middle part of the supporting plate. The four adjusting discs are arranged below the four through holes respectively. The main engine air valve grinding device has the advantages of being low in manufacturing cost, easy to operate, high in grinding efficiency, and reliable in grinding quality.
Description
Technical field
The utility model relates to large ship main frame maintenance utensil technical field, is specifically related to main frame air valve lapping device.
Background technology
Air inlet and exhaust valve is the component part of burning chamber of diesel engine, belongs to moving component, and the oscillation cycle motion is subject to again the high-temperature high-pressure fuel gas effect, easily produces valve seat and the wearing and tearing of the valve disc conical surface.Therefore in the host maintenance process, the grinding reparation of air inlet-exhaust valve is an important process.Air valve is comprised of valve rod, valve block etc., when main frame reaches the time between overhauls(TBO), must grind reparation to air inlet-exhaust valve.Existing lapping mode has: the special grinder of 1, using diesel engine manufacturer to be equipped with; 2, utilize and buy complete milling apparatus; 3, only use abrasive disk, hand-ground.
There is darker corrosion pit in first kind of way at the contact-making surface of air valve valve disc and valve seat usually, as diameter is greater than pit, the pit of 3mm, and just can use under more outside defect situation, and adopt the feed that is equivalent to vertical lathe to control cutting, this is a kind of overhaul, precision is controlled strict, requires highly, has exceeded General Maintenance; The second way, apparatus expensive, complicated operation, be applicable to professional's operation, operation in enormous quantities; The third mode, efficiency is low, of poor quality, is difficult to reach the reparation requirement.In view of this, the applied abrasive device that development can address the above problem is urgently to be resolved hurrily.
The utility model content
The purpose of this utility model is to provide a kind of main frame air valve lapping device, and it has, and cost is low, simple to operate, grinding efficiency is high, the reliable characteristics of Grinding Quality.
In order to achieve the above object, the utility model is achieved through the following technical solutions: main frame air valve lapping device, be characterized in, and comprise frame section, running part and power section;
Above-mentioned frame section is connected by running part with power section;
Above-mentioned frame section comprises supporting plate, four screw thread columns, base, four adjustment disks and a plurality of bolts;
Above-mentioned supporting plate is square, and four jiaos of supporting plates are provided with four through holes;
Four above-mentioned screw thread columns, respectively through a through hole, are bolted on four jiaos of base;
Above-mentioned supporting plate is arranged on the middle part of four screw thread columns;
Above-mentioned supporting plate middle part is provided with centre bore;
Four above-mentioned adjustment disks are separately positioned on the below of four through holes.
Above-mentioned running part comprises two transmission bracket, power transmission shaft, pair of sliding bearing, a pair of lubricating cup, cam;
Above-mentioned transmission bracket one end connects the bottom of sliding bearing, and its other end connects base;
The top of above-mentioned sliding bearing connects lubricating cup;
Above-mentioned power transmission shaft is arranged on the centre of pair of sliding bearing;
Above-mentioned cam is arranged on the middle part of power transmission shaft;
Above-mentioned cam is relative with centre bore.
Above-mentioned power section comprises motor, electric control box, gearbox, the first belt, the first belt pulley, the second belt pulley, the second belt, the 3rd belt pulley and the 4th belt pulley;
The second above-mentioned belt pulley and the 3rd belt pulley are separately positioned on the both sides of gearbox;
The first above-mentioned belt pulley is connected by the first belt with the second belt pulley;
The first above-mentioned belt pulley is connected with an end of power transmission shaft;
The 3rd above-mentioned belt pulley is connected by the second belt with the 4th belt pulley;
The 4th above-mentioned belt pulley is connected with motor;
Above-mentioned electric control box is connected with motor.
The utility model main frame air valve lapping device compared with prior art has the following advantages: owing to utilizing valve rod to coordinate with the original of valve seat, adopt and grind mutually, saved the time of accurate centering, avoided risk, and parts are few, cost is low, uses easy to operate, eliminated existing complete milling apparatus price high, the disadvantage of complicated operation; Due to cam drive and valve rod automatic rotation abrasive characteristic, make it aspect grinding efficiency and quality, outclass hand-ground, be applicable to conventional reparation of large ship main frame air valve and grind.
The accompanying drawing explanation
The overall structure schematic diagram that Fig. 1 is the utility model main frame air valve lapping device frame section and running part.
The overall structure schematic diagram that Fig. 2 is the power section of the utility model main frame air valve lapping device.
The front view that Fig. 3 is the utility model main frame air valve lapping device cam.
The left view that Fig. 4 is the utility model main frame air valve lapping device cam.
The structural representation that Fig. 5 is air valve.
The specific embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
As shown in Figure 1, main frame air valve lapping device, comprise frame section 1, running part 2 and power section 3; Frame section 1 is connected by running part 2 with power section 3; Frame section 1 comprises supporting plate 11, four screw thread columns 12, base 13, four adjustment disks 14 and a plurality of bolts 15; Supporting plate 11 is square, and 11 4 jiaos of supporting plates are provided with four through holes 111; Four screw thread columns 12, respectively through by a through hole 111, are fixed on four jiaos of base 13 by bolt 15; Supporting plate 11 is arranged on the middle part of four screw thread columns 12; Supporting plate 11 middle parts are provided with centre bore 112; Four adjustment disks 14 are separately positioned on the below of four through holes 111.Running part 2 comprises two transmission bracket 21, power transmission shaft 22, pair of sliding bearing 23, a pair of lubricating cup 24, cam 25; Transmission bracket 21 1 ends connect the bottom of sliding bearing 23, and its other end connects base 13; The top of sliding bearing 23 connects lubricating cup 24; Power transmission shaft 22 is arranged in the middle of pair of sliding bearing 23; Cam 25 is arranged on the middle part of power transmission shaft 22; Cam 25 is relative with centre bore 112.
As shown in Figure 2, power section 3 comprises motor 31, electric control box 32, gearbox 33, the first belt 34, the first belt pulley 35, the second belt pulley 36, the second belt 37, the 3rd belt pulley 38 and the 4th belt pulley 39; The second belt pulley 36 and the 3rd belt pulley 38 are separately positioned on the both sides of gearbox 33; The first belt pulley 35 is connected by the first belt 34 with the second belt pulley 36; The first belt pulley 35 is connected with an end of power transmission shaft 22; The 3rd belt pulley 38 is connected by the second belt 37 with the 4th belt pulley 39; The 4th belt pulley 39 is connected with motor 31; Electric control box 32 is connected with motor 31.
Concrete application: whole lapping device is positioned on more smooth ground, but assurance device reduces vibration in the course of the work; After the main frame cylinder head disassembling, valve seat 4 and valve rod 5 are positioned on supporting plate 11 as a whole, as shown in Figure 1, valve rod 5 is through supporting plate 11 centre bores 112, with under cam 25 corresponding, cam 25 peaks are gone to the top, adjust up and down supporting plate by four adjustment disks 14, until valve rod 5 bottoms are affixed on cam 25 peaks, valve rod 5 centers, directly over cam 25, and keep point-blank with cam 25.As shown in Figure 2, motor 31 rotating speeds are selected 5.5kw, the 960rpm specification, and gearbox 33 adopts ZQ350 type commonly used, gearratio 23.34; The first belt pulley 35 and the second belt pulley 36 external diameter ratios are decided to be 1:2.Cam 25 rotating speeds: 960/23.34*(1:2)=20.56 rev/mins, cam 25 and each separation time of valve rod 5: 60/20.56=2.92 second, valve disc 6 and valve seat 4 attrition 2.92 seconds are at every turn.By the first belt 34, gearbox 33 is connected with power transmission shaft, by the second belt 37, motor 31 is connected with gearbox 33, starter motor 31 buttons, cam 25 rotations, band ovable valve stem 5 moves up and down; When cam 25 is crossed peak in a flash, valve rod 5 bottoms break away from cam 25, by the deadweight freely falling body, valve rod 5 upper end valve discs 6 and valve seat 4 collisions, every collision is once for once grinding, because cam 25 adopts the cone cylinder, as shown in Figure 3, Figure 4, therefore, after each collision, valve rod 5 just can the automatic rotation certain angle, thereby makes valve face constantly in collision and automatic rotation, realize stable grinding.As shown in Figure 5, guarantee valve disc 6 and valve seat 4 attritions, and too do not exert oneself, while adjusting supporting plate 11 height, guarantee that valve disc 6, valve seat 4 spacings are 20-30mm, thereby are less than the difference in height of cam 25 own; Valve disc 6 is put into abrasive sand before grinding with valve seat 4, thoroughly clean valve disc 6 and valve seat 4 after the even light of valve line 7, and oil filling is proceeded to grind, to wash away abrasive sand.Whole to the mill process, a side contacts, contacted to complete before this, to a circle valve line 7 occurring, and wide about 2mm, or higher, valve line 7 is light evenly.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (3)
1. main frame air valve lapping device, is characterized in that, comprises: frame section (1), running part (2) and power section (3);
Described frame section (1) is connected by running part (2) with power section (3);
Described frame section (1) comprises supporting plate (11), four screw thread columns (12), base (13), four adjustment disks (14) and a plurality of bolt (15);
Described supporting plate (11) is square, and (11) four jiaos of supporting plates are provided with four through holes (111);
Described four screw thread columns (12), respectively through a through hole (111), are fixed on four jiaos of base (13) by bolt (15);
Described supporting plate (11) is arranged on the middle part of four screw thread columns (12);
Described supporting plate (11) middle part is provided with centre bore (112);
Described four adjustment disks (14) are separately positioned on the below of four through holes (111).
2. main frame air valve lapping device as claimed in claim 1, is characterized in that, described running part (2) comprises two transmission bracket (21), power transmission shaft (22), pair of sliding bearing (23), a pair of lubricating cup (24) and cam (25);
Described transmission bracket (21) one ends connect the bottom of sliding bearing (23), and its other end connects base (13);
The top of described sliding bearing (23) connects lubricating cup (24);
Described power transmission shaft (22) is arranged on the centre of pair of sliding bearing (23);
Described cam (25) is arranged on the middle part of power transmission shaft (22);
Described cam (25) is relative with centre bore (112).
3. main frame air valve lapping device as claimed in claim 1, it is characterized in that, described power section (3) comprises motor (31), electric control box (32), gearbox (33), the first belt (34), the first belt pulley (35), the second belt pulley (36), the second belt (37), the 3rd belt pulley (38) and the 4th belt pulley (39);
Described the second belt pulley (36) and the 3rd belt pulley (38) are separately positioned on the both sides of gearbox (33);
Described the first belt pulley (35) is connected by the first belt (34) with the second belt pulley (36);
Described the first belt pulley (35) is connected with an end of power transmission shaft (22);
Described the 3rd belt pulley (38) is connected by the second belt (37) with the 4th belt pulley (39);
Described the 4th belt pulley (39) is connected with motor (31);
Described electric control box (32) is connected with motor (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320363227 CN203343841U (en) | 2013-06-24 | 2013-06-24 | Main engine air valve grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320363227 CN203343841U (en) | 2013-06-24 | 2013-06-24 | Main engine air valve grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203343841U true CN203343841U (en) | 2013-12-18 |
Family
ID=49743774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320363227 Expired - Lifetime CN203343841U (en) | 2013-06-24 | 2013-06-24 | Main engine air valve grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203343841U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659571A (en) * | 2013-12-27 | 2014-03-26 | 山海关船舶重工有限责任公司 | Grinding device for matching surface between air valve and valve seat of large-sized diesel engine |
| CN104708515A (en) * | 2015-04-02 | 2015-06-17 | 浙江海洋学院 | Device for grinding air valve |
| CN109968142A (en) * | 2019-04-28 | 2019-07-05 | 浙江海洋大学 | A kind of air valve grinding device |
-
2013
- 2013-06-24 CN CN 201320363227 patent/CN203343841U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659571A (en) * | 2013-12-27 | 2014-03-26 | 山海关船舶重工有限责任公司 | Grinding device for matching surface between air valve and valve seat of large-sized diesel engine |
| CN104708515A (en) * | 2015-04-02 | 2015-06-17 | 浙江海洋学院 | Device for grinding air valve |
| CN104708515B (en) * | 2015-04-02 | 2017-02-22 | 浙江海洋学院 | Device for grinding air valve |
| CN109968142A (en) * | 2019-04-28 | 2019-07-05 | 浙江海洋大学 | A kind of air valve grinding device |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |