CN104110370A - Electric control oil injection pump air cylinder lubricating system - Google Patents
Electric control oil injection pump air cylinder lubricating system Download PDFInfo
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- CN104110370A CN104110370A CN201410315417.7A CN201410315417A CN104110370A CN 104110370 A CN104110370 A CN 104110370A CN 201410315417 A CN201410315417 A CN 201410315417A CN 104110370 A CN104110370 A CN 104110370A
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- plunger
- oil
- lubricating system
- gear
- cylinder lubricating
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an electric control oil injection pump air cylinder lubricating system. The electric control oil injection pump air cylinder lubricating system comprises an oil injection nozzle installed on an air cylinder, a shell communicated with the oil injection nozzle, a plunger cavity arranged in the shell, an oil inlet, an oil returning port, a plunger installed in the plunger cavity, a tappet with the lower end provided with a wheel, and a cam shaft in transmission connection with the wheel, the oil inlet and the oil returning port are formed in the two sides of the plunger cavity, the bottom face of the plunger is provided with an inserting port, the upper end of the tappet is inserted into the inserting port, the position, corresponding to the oil returning port, on the side wall at the upper end of the plunger is provided with a vertical zero oil mass channel communicated with the plunger cavity, the lower portion of the zero oil mass channel is obliquely provided with an oil mass adjusting groove in the circumferential direction, and the oil mass adjusting groove is communicated with the lower portion of the zero oil mass channel. The position, corresponding to the lower end of the plunger, in the shell is provided with a gear capable of driving the plunger to rotate, the lower end of the plunger can move up and down to be inserted into the gear, the position, corresponding to the gear, of the shell is provided with a rack driving the gear to rotate, one end of the rack is connected with a drive device, and the drive device is controlled through a control unit. The electric control oil injection pump air cylinder lubricating system is suitable for engines.
Description
Technical field
The present invention relates to a kind of use for diesel engine cylinder lubricating system, specifically a kind of automatically controlled filling pump cylinder lubricating system.
Background technique
At present, large-scale marine low speed diesel engine generally adopts cross-type two-stroke diesel diesel engine, in cross-type two-stroke diesel diesel engine, upper rack is all provided with diaphragm and piston rod stuffing box separates cylinder and crank box, and such structural feature has determined the lubricated necessary cylinder lubricating system that adopts between piston group and cylinder liner.
General cylinder lubricating system adopts mechanical type oil gun mostly, this oil gun is by sprocket wheel, to drive the camshaft of oil gun to rotate by motor, by the cam on camshaft, pushed that plunger is reciprocating to be completed oiling and move, its oiling frequency is synchronizeed with engine speed again.There is in actual use following problem in this mechanical type oil gun:
Because the oiling frequency of this oil gun is synchronizeed with engine speed, and the stroke of the plunger of this oil gun is non-adjustable in engine operation process, so when low engine speed is moved, the oil filling amount of this oil gun is less, thereby cause lubricating not, affected the normal work of cylinder; And when high engine speeds is moved, the oil filling amount of this oil gun is too many again, thereby cause lubricating oil too much, too much lubricating oil easily causes generation carbon distribution in cylinder.
Summary of the invention
The object of the invention is the deficiency existing in order to solve above-mentioned background technology, propose the automatically controlled filling pump cylinder lubricating system that a kind of oil filling amount can regulate automatically according to actual conditions.
For achieving the above object, the present invention adopts following technological scheme: a kind of automatically controlled filling pump cylinder lubricating system, comprise oil gun, described oil gun comprises the pump nozzle being arranged on cylinder, the housing being communicated with described pump nozzle, be arranged on the plunger cavity in described housing, be arranged on filler opening and the return opening of described plunger cavity both sides, be arranged on the plunger in described plunger cavity, the tappet of lower end band roller and the camshaft being in transmission connection with described roller, described plunger bottom surface is provided with socket, described tappet upper end is inserted in described socket, on the sidewall of described plunger upper end, the position of corresponding described return opening is provided with the zero oil mass passage being communicated with described plunger cavity of vertical layout, described zero oil mass passage bottom is the oblique control slot that is provided with along the circumferential direction, described control slot is communicated with described zero oil mass passage bottom, in described housing, the position of corresponding described plunger lower end is provided with the gear that can drive described plunger to rotate, described plunger lower end can be inserted in described gear up or down, on described housing, the position of corresponding described gear is provided with the tooth bar that drives described gear to rotate, described tooth bar one end is connected with drive unit, described drive unit is controlled by control unit, described control unit can be controlled in real time described drive unit according to engine operating condition and drive described tooth bar to move, thereby makes described gear rotate the pivotal position of adjusting described plunger.By adopting, on plunger sidewall, add zero oil mass passage and control slot, and drive described tooth bar to move with the described drive unit of the real-time control of control unit, thereby make described gear rotate the technological scheme of the pivotal position of adjusting described plunger, reached and can automatically regulate according to motor actual conditions the object of oil filling amount, simple in structure and cost is low.
In such scheme, described tooth bar is laterally actively plugged on described housing.
In such scheme, described plunger lower end outer wall is provided with key, and described plunger lower end can be inserted in described gear up or down by described key.
In such scheme, described gear passes through back-up ring location and installation in described housing.Certainly, also can adopt other structures to guarantee that gear can only rotate in fixed position.
In such scheme, described plunger middle part is provided with the sealing platform that diameter matches with the diameter of described plunger cavity, to guarantee the sealing of plunger cavity.
In such scheme, described zero channel width of oil mass passage and the bore of described return opening match.
The passage length of described zero oil mass passage equals to be greater than the range of described plunger, with not oiling of oil gun described in the pivotal position that guarantees plunger is when the zero oil filling amount position.
In such scheme, described drive unit is for inhaling iron switch.Certainly, also can adopt other power plant such as cylinder.
The present invention is compared with the prior art, and fully shows that its superiority is:
By adopting, on plunger sidewall, add zero oil mass passage and control slot, and drive described tooth bar to move with the described drive unit of the real-time control of control unit, thereby make described gear rotate the technological scheme of the pivotal position of adjusting described plunger, reached and can automatically regulate according to motor actual conditions the object of oil filling amount, simple in structure and cost is low.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
The structural representation that Fig. 1 is the present invention when maximum oil filling amount and plunger are positioned at extreme lower position;
The structural representation that Fig. 2 is the present invention when maximum oil filling amount and plunger are positioned at extreme higher position;
The structural representation that Fig. 3 is the present invention when zero oil filling amount and plunger are positioned at extreme lower position;
The structural representation that Fig. 4 is the present invention when zero oil filling amount and plunger are positioned at extreme higher position;
Fig. 5 is the local structure for amplifying schematic diagram of A portion in Fig. 2;
Fig. 6 is that in Fig. 5, plunger turns to the structural representation of control slot when return opening position;
Fig. 7 is the local structure for amplifying schematic diagram of B portion in Fig. 4;
Fig. 8 is the main TV structure schematic diagram of plunger;
Fig. 9 is the left TV structure schematic diagram of plunger;
Figure 10 is the right TV structure schematic diagram of plunger;
Figure 11 is the structural representation of looking up of plunger;
Figure 12 is the plan structure schematic diagram of plunger;
Figure 13 is the cross-sectional view along C-C line in Figure 12;
Figure 14 is circuit theory diagrams of the present invention.
In the drawings, oil gun 1, pump nozzle 1a, housing 1b, plunger cavity 1c, filler opening 1d, return opening 1e, plunger 1f, socket 1f1, zero oil mass passage 1f2, control slot 1f3, sealing platform 1f4, key 1f5, tappet 1g, camshaft 1h, gear 1i, tooth bar 1j, drive unit 1k, draining valve assembly 1l, back-up ring 1m, control unit 2, controller 2a, sensor 2b, man-machine interaction unit 2c, uninterruptable power source 2d, charger 2e, cylinder 3, oil supply unit 4.
Embodiment
A kind of automatically controlled filling pump cylinder lubricating system as shown in Figure 1, comprise oil gun 1, described oil gun 1 comprises the pump nozzle 1a being arranged on cylinder 3, the housing 1b being communicated with described pump nozzle 1a by oil pipe, be arranged on the plunger cavity 1c in described housing 1b, be arranged in described housing 1b and be positioned at the draining valve assembly 1l of plunger cavity 1c top, be arranged on filler opening 1d and the return opening 1e of described plunger cavity 1c both sides, be arranged on the plunger 1f in described plunger cavity 1c, the tappet 1g of lower end band roller and the camshaft 1h being in transmission connection with described roller, described plunger 1f bottom surface is provided with socket 1f1, described tappet 1g upper end is inserted in described socket 1f1, on the sidewall of described plunger 1f upper end, the position of corresponding described return opening 1e is provided with the zero oil mass passage 1f2 being communicated with described plunger cavity 1c of vertical layout, described zero oil mass passage 1f2 bottom is the oblique control slot 1f3 that is provided with along the circumferential direction, described control slot 1f3 is communicated with described zero oil mass passage 1f2 bottom, in described housing 1b, the position of corresponding described plunger 1f lower end is provided with the gear 1i that can drive described plunger 1f to rotate, described plunger 1f lower end can be inserted in described gear 1i up or down, the position of the upper corresponding described gear 1i of described housing 1b is provided with the tooth bar 1j that drives described gear 1i to rotate, described tooth bar 1j one end is connected with drive unit 1k, described drive unit 1k is controlled by control unit 2, described control unit 2 can be controlled in real time described drive unit 1k according to engine operating condition and drive described tooth bar 1j to move, thereby make described gear 1i rotate the pivotal position of adjusting described plunger 1f.By adopting, on plunger 1f sidewall, add zero oil mass passage 1f2 and control slot 1f3, and drive described tooth bar 1j to move with the described drive unit 1k of control unit 2 real-time control, thereby make described gear 1i rotate the technological scheme of the pivotal position of adjusting described plunger 1f, reached and can automatically regulate according to motor actual conditions the object of oil filling amount, simple in structure and cost is low.
Above-mentioned tooth bar 1j is laterally actively plugged on described housing 1b.Described plunger 1f lower end outer wall is provided with key 1f5, and described plunger 1f lower end can be inserted in described gear 1i up or down by described key 1f5.Described gear 1i passes through back-up ring 1m location and installation in described housing 1b.Certainly, also can adopt other structures to guarantee that gear 1i can only rotate in fixed position.Described plunger 1f middle part is provided with the sealing platform 1f4 that diameter matches with the diameter of described plunger cavity 1c, to guarantee the sealing of plunger cavity 1c.The channel width of described zero oil mass passage 1f2 matches with the bore of described return opening 1e.The passage length of described zero oil mass passage 1f2 equals to be greater than the range of described plunger 1f, with oil gun 1 not oiling described in the pivotal position that guarantees plunger 1f is when the zero oil filling amount position.Described drive unit 1k is for inhaling iron switch.Certainly, also can adopt other power plant such as cylinder.
Man-machine interaction unit 2c, the uninterruptable power source 2d being communicated with the power supply inlet opening of described controller 2a of the signal end intercommunication of sensor 2b, described controller 2a that above-mentioned control unit 2 comprises controller 2a, be communicated with the signal input part of described controller 2a and the charger 2e being communicated with the power supply inlet opening of described uninterruptable power source 2d, the power output of the signal output part of described controller 2a and described uninterruptable power source 2d is communicated with signal input part and the power supply inlet opening of the control circuit of described drive unit 1k respectively.The output signal of described sensor 2b comprises I. C. engine crankshaft angular signal, the tach signal of angular encoder sensor, from the engine load signal of load indication sensor, the digital signals such as the sulphur content of fuel oil, cylinder sleeve and piston group break-in state.
Above-mentioned control unit 2 is according to the control mode of setting, I. C. engine crankshaft angular signal, tach signal from angular encoder sensor, engine load signal from load indication sensor, the digital signals such as the sulphur content of fuel oil, cylinder sleeve and piston group break-in state, through after calculating, provide optimum oil feeding, and then control moment of described suction iron switch motion and actuating quantity to realize the accurate injection of cylinder oil.And, can also be as required, according to operating mode automatic or manual on man-machine interaction panel of diesel engine, regulate oil filling amount and oiling regularly.The working principle of described control unit 2 and circuit belongs to those skilled in the art's conventional design, does not repeat them here.
The principle that this lubrication system changes oil filling amount is as follows:
1) zero oil filling amount:
Now, described plunger 1f turns to the position that zero oil mass passage 1f2 on it aims at described return opening 1e, in the process moving up and down at described plunger 1f, described plunger cavity 1c is communicated with described return opening 1e by described zero oil mass passage 1f2 all the time, so the oil pressure in described plunger cavity 1c is identical with the oil pressure in described return opening 1e (being low oil pressure) all the time, therefore, cannot to realize oiling be that oil filling amount is zero (referring to Fig. 7) to described oil gun 1;
2) centre note oil mass:
Now, described plunger 1f turns to control slot 1f3 on it towards the position of described return opening 1e, like this, at described plunger 1f, move upward to the process of extreme higher position from extreme lower position, described plunger 1f only just can pressurize and realize oiling the fluid in described plunger cavity 1c in the incipient stage; When described plunger 1f moves to the position that described control slot 1f3 is communicated with described return opening 1e, because described plunger cavity 1c is communicated with described return opening 1e by described zero oil mass passage 1f2 and described control slot 1f3, so the high pressure oil in described plunger cavity 1c is just down to low pressure oil state by described return opening 1e rapidly, described oil gun 1 just cannot be realized oiling; Therefore, in the whole stroke of described plunger 1f, only in incipient stage energy oiling, like this by rotating described plunger 1f, regulate the control slot 1f3 of oblique layout on it towards the position of described return opening 1e, the pressure stroke that changes described plunger 1f just can realize any adjusting (referring to Fig. 6) of oil filling amount;
3) maximum oil filling amount:
Now, described plunger 1f turns to the position that its sidewall that is not provided with described zero oil mass passage 1f2 or described control slot 1f3 is aimed at described return opening 1e, due to moving up and down in process at described plunger 1f, described plunger cavity 1c is not communicated with described return opening 1e all the time, so in whole up process, described plunger 1f can, all the time to the fluid pressurization in described plunger cavity 1c, realize the oiling (referring to Fig. 5) of maximum oil mass.
Working procedure of the present invention is as follows:
First, described tappet 1g moves up and down under the rotation of described camshaft 1h; Simultaneously, described tappet 1g drives described plunger 1f to move upward, when the end face of described plunger 1f rises to described filler opening 1d and return opening 1e when above, the sidewall of described plunger 1f just cuts off being communicated with of described filler opening 1d and return opening 1e and described plunger cavity 1c, described plunger 1f starts the fluid pressurization in described plunger cavity 1c, when in described plunger cavity 1c, oil pressure surpasses the setting value of described draining valve assembly 1l, high pressure oil just by described draining valve assembly 1l, oil pipe and pump nozzle 1a to the interior oiling of cylinder 3; When described tappet 1g moves downward, under the acting in conjunction of the oil pressure of described plunger 1f in described plunger cavity 1c and gravity, with described tappet 1g, move downward, when the end face of described plunger 1f drops to described filler opening 1d when following, described filler opening 1d is communicated with described plunger cavity 1c, fluid in oil supply unit 4 just enters in described plunger cavity 1c by described filler opening 1d, realizes the filling of fluid; In the running of motor, described control unit 2 can be controlled in real time described drive unit 1k according to the actual conditions of motor and drive described tooth bar 1j to move, thereby make described gear 1i rotate the pivotal position of adjusting described plunger 1f, realize the adjustment of oil filling amount.
The present invention adds zero oil mass passage 1f2 and control slot 1f3 by adopting on plunger 1f sidewall, and drive described tooth bar 1j to move with the described drive unit 1k of control unit 2 real-time control, thereby make described gear 1i rotate the technological scheme of the pivotal position of adjusting described plunger 1f, reached and can automatically regulate according to motor actual conditions the object of oil filling amount, simple in structure and cost is low.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an automatically controlled filling pump cylinder lubricating system, comprise oil gun (1), described oil gun (1) comprises the pump nozzle (1a) being arranged on cylinder (3), the housing (1b) being communicated with described pump nozzle (1a), be arranged on the plunger cavity (1c) in described housing (1b), be arranged on filler opening (1d) and the return opening (1e) of described plunger cavity (1c) both sides, be arranged on the plunger (1f) in described plunger cavity (1c), the tappet (1g) of lower end band roller and the camshaft (1h) being in transmission connection with described roller, described plunger (1f) bottom surface is provided with socket (1f1), described tappet (1g) upper end is inserted in described socket (1f1), it is characterized in that the position of corresponding described return opening (1e) on the sidewall of described plunger (1f) upper end is provided with the zero oil mass passage (1f2) being communicated with described plunger cavity (1c) of vertical layout, described zero oil mass passage (1f2) bottom is the oblique control slot (1f3) that is provided with along the circumferential direction, described control slot (1f3) is communicated with described zero oil mass passage (1f2) bottom, in described housing (1b), the position of corresponding described plunger (1f) lower end is provided with the gear (1i) that can drive described plunger (1f) to rotate, described plunger (1f) lower end can be inserted in described gear (1i) up or down, the position of the upper corresponding described gear (1i) of described housing (1b) is provided with the tooth bar (1j) that drives described gear (1i) to rotate, described tooth bar (1j) one end is connected with drive unit (1k), described drive unit (1k) is controlled by control unit (2), described control unit (2) can be controlled in real time described drive unit (1k) according to engine operating condition and drive described tooth bar (1j) mobile, thereby make described gear (1i) rotate the pivotal position of adjusting described plunger (1f).
2. automatically controlled filling pump cylinder lubricating system according to claim 1, is characterized in that described tooth bar (1j) is laterally actively plugged on described housing (1b).
3. automatically controlled filling pump cylinder lubricating system according to claim 1, it is characterized in that described plunger (1f) lower end outer wall is provided with key (1f5), described plunger (1f) lower end can be inserted in described gear (1i) up or down by described key (1f5).
4. automatically controlled filling pump cylinder lubricating system according to claim 1, is characterized in that described gear (1i) passes through back-up ring (1m) location and installation in described housing (1b).
5. automatically controlled filling pump cylinder lubricating system according to claim 1, is characterized in that described plunger (1f) middle part is provided with the sealing platform (1f4) that diameter matches with the diameter of described plunger cavity (1c).
6. automatically controlled filling pump cylinder lubricating system according to claim 1, is characterized in that the channel width of described zero oil mass passage (1f2) matches with the bore of described return opening (1e).
7. automatically controlled filling pump cylinder lubricating system according to claim 1, is characterized in that the passage length of described zero oil mass passage (1f2) equals to be greater than the range of described plunger (1f).
8. automatically controlled filling pump cylinder lubricating system according to claim 1, is characterized in that described drive unit (1k) is for inhaling iron switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315417.7A CN104110370B (en) | 2014-07-02 | 2014-07-02 | Automatically controlled filling pump cylinder lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315417.7A CN104110370B (en) | 2014-07-02 | 2014-07-02 | Automatically controlled filling pump cylinder lubricating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104110370A true CN104110370A (en) | 2014-10-22 |
| CN104110370B CN104110370B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410315417.7A Expired - Fee Related CN104110370B (en) | 2014-07-02 | 2014-07-02 | Automatically controlled filling pump cylinder lubricating system |
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| CN (1) | CN104110370B (en) |
Cited By (2)
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| CN107795449A (en) * | 2017-11-28 | 2018-03-13 | 西南石油大学 | A kind of tooth fan rack-and-pinion reciprocating pump of cam limit |
| CN108953023A (en) * | 2018-08-21 | 2018-12-07 | 湖南兴农机械有限公司 | A kind of diesel oil plunger and its working method and plunger matching parts |
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| CN108953023A (en) * | 2018-08-21 | 2018-12-07 | 湖南兴农机械有限公司 | A kind of diesel oil plunger and its working method and plunger matching parts |
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| Publication number | Publication date |
|---|---|
| CN104110370B (en) | 2016-08-10 |
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Granted publication date: 20160810 Termination date: 20190702 |