CN205639173U - A fuel feeding hydraulic pressure adjusting device for piston cooling nozzle performance experiment bench - Google Patents
A fuel feeding hydraulic pressure adjusting device for piston cooling nozzle performance experiment bench Download PDFInfo
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- CN205639173U CN205639173U CN201620478590.3U CN201620478590U CN205639173U CN 205639173 U CN205639173 U CN 205639173U CN 201620478590 U CN201620478590 U CN 201620478590U CN 205639173 U CN205639173 U CN 205639173U
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Abstract
The utility model discloses a fuel feeding hydraulic pressure adjusting device for piston cooling nozzle performance experiment bench, including step motor, lead screw, roof, a support section of thick bamboo, movable plate, a follow -up section of thick bamboo, remove the axle, keep off an oil section of thick bamboo, return oil pipe, linear bearing, bearing frame and bellytank, the bellytank is connected with fuel feeding oil sources and piston cooling nozzle respectively, the bearing frame is installed on the bellytank and is equipped with the draining groove and the draining hole, removes the axle and can reciprocate a draining volume that changes the draining inslot, the removal is spool in proper order by a follow -up section of thick bamboo and movable plate drive, the movable plate passes through the lead screw and is connected with step motor's pivot and is driven. The utility model discloses a step motor drive screw is rotatory, and then drives and move the axle and reciprocate, to the sheltering from of the draining groove that sets up and draining hole, changes its size of letting out oil output through moving the axle in the bearing frame, forms the bypass pressure regulating of reducing expenditure to reach the purpose that the delivery pressure was adjusted, its operation can not lead to detection medium machine oil to produce the temperature rise, uses portably moreover.
Description
Technical field
This utility model relates to the adnexa of a kind of piston cooling nozzle performance test stand, particularly relates to a kind of fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand.
Background technology
Piston cooling nozzle (i.e. PCN) has extremely important effect as the important component part of automobile engine, the quality of its performance to lubrication, the cooling effect of engine movements piston；The test curve of piston cooling nozzle performance test is as shown in Figure 1.
Piston cooling nozzle is made up of nozzle body and check valve, and based on automobile engine specification, the multiformity of model, the specification of piston cooling nozzle, model are also a lot, but its version is substantially similar.
The test of the switching characteristic of piston cooling nozzle, discharge characteristic is exfactory inspection project, it is desirable to all products that dispatch from the factory are carried out 100% one hundred percent inspection test.
The technical specification parameter needing detection includes: open pressure, closing presure, leakage flow, draining flow and target practice position.
The specification of piston cooling nozzle, model are different, the technical requirement of its parameter difference.Its each parameter detecting condition, index request and variable-definition are as shown in table 1:
Table 1 each parameter detecting condition, index request and variable-definition
| Parameter | Testing conditions | Index request |
| Open pressure | Q2 | P∈[P2±ΔP] |
| Close pressure | Q2 | P ＞ P1 |
| Leakage stream | P0 | Q ＜ Q3 |
| Draining stream | P3 | Q ∈ [Q5, Q14] |
| Target practice position | P3 | F≥Fm |
Each technical specification parameter is defined as follows:
Open pressure: flow rises to charge oil pressure value P during regulation flow value Q2 from low to high.P∈[P2± Δ P] qualified for opening stress test, it is otherwise defective.
Closing presure: flow is dropped to regulation flow value Q on earth by height2Time charge oil pressure value P.P ＞ P1For closing presure test passes, it is otherwise defective.
Leakage flow: nominative testing pressure value P0Time flow value Q.Q ＜ Q3For leakage flow test passes, it is otherwise defective.
Draining flow: flow rises to authorized pressure value P from low to high3Time flow value Q.Q∈[Q5, Q14] it is that draining flow rate test is qualified, it is otherwise defective.
Target practice position: pressure reaches draining flow rate test pressure value P3Time oil bundle spray into and specify the inside and outside flow proportional in region.The test target practice position measurement device of target practice position is tested, it is thus achieved that target practice power F that oil bundle injection is practiced shooting, and judges that it is the most qualified by the threshold value setting of target practice power.F≥FmQualified for target practice position measurement, it is otherwise defective.
When carrying out piston cooling nozzle performance test, segmentation pressure regulation fuel feeding is carried out by 1. aerofluxus, 2. low speed blood pressure lowering, 3. low speed boosting, the 4. order of rapid pressure, 5. reduction of blood pressure in high-speed, real-time testing charge oil pressure, flow and target practice power during whole, it is thus achieved that test curve as shown in Figure 1.From curve, extract the testing result corresponding to each parameter detecting condition, and judge that it is the most qualified by its technical requirement.
When carrying out piston cooling nozzle performance test, adjustable pressure fueller is necessary.Meanwhile, in order to reduce the equipment operating cost of piston cooling nozzle performance test stand, it is desirable to room temperature automobile engine oil be detection medium, i.e. require the running of piston cooling nozzle performance test stand be not result in machine oil produce temperature rise.
Traditional adjustable pressure fueller can be summarized as following 4 kinds of structures: uses meter in pressure regulation test oil circuit；Use by-pass throttle pressure regulation test oil circuit；Use meter in pressure regulation test oil circuit；Frequency conversion motor is used to drive the regulation realizing charge oil pressure.
Above-mentioned Conventional tunable forced feed device all has a disadvantage in that, due to the heating of motor, oil pump, electromagnetic valve etc., detection medium machine oil can produce bigger temperature rise.
nullIn order to solve the problems referred to above，Present applicant has proposed a kind of machine oil and without the low air pressure-loading fueller for piston cooling nozzle performance test stand of temperature rise and noise and apply for patent，This apparatus structure is as shown in Figure 2，Including air tank 13、Oil-supply valve、Oil return valve、Oil return fuel tank 11、Air intake valve、Drain tap、Barostat 16 and high-pressure air source 15，Described air intake valve includes the first air inlet electromagnetic valve 22、First flow inlet angle seat valve 18、Second air inlet electromagnetic valve 20、Second flow inlet angle seat valve 21，Described drain tap includes first exhaust electromagnetic valve 31、First exhaust angle pedestal valve 17、Second exhaust electromagnetic valve 33、Second exhaust angle pedestal valve 19，Described oil-supply valve includes for solenoid 34 and delivery angle seat valve 23，Described oil return valve includes oil return solenoid valve 32 and oil return angle pedestal valve 12，The space above machine oil in air tank 13 accounts for 1/to three/4th of the whole space in air tank 13，General volume is 10 liters，On fuel feed pump 28 between middle and lower part and the oil-in of piston cooling nozzle 5 of air tank 13, delivery angle seat valve 23 is installed、Flow transducer 3 and pressure transducer 4，Oil return fuel tank 11 is installed on the lower section of the jet of piston cooling nozzle 5 and is positioned at the top of air tank 13，Oil return angle pedestal valve 12 is installed on the oil return pipe 29 between oil return fuel tank 11 and air tank 13，The first flow inlet angle seat valve 18 and the second flow inlet angle seat valve 21 being connected in parallel is installed on the trachea 30 between position and the gas outlet of barostat 16 above the upper position of air tank 13 machine oil in air tank 13，Interlink on trachea between first flow inlet angle seat valve 18 and the second flow inlet angle seat valve 21 and air tank 13 and be connected to two exhaustors (unmarked in figure)，First exhaust angle pedestal valve 17 and second exhaust angle pedestal valve 19 are respectively arranged on two exhaustors，The air inlet of barostat 16 is connected with high-pressure air source 15，The signal output part of flow transducer 3 and the signal output part of pressure transducer 4 signal input part with controller (not shown) respectively is connected，The control input of the first air inlet electromagnetic valve 22、The control input of the second air inlet electromagnetic valve 20、The control input of first exhaust electromagnetic valve 31、The control input of second exhaust electromagnetic valve 33、The input that controls controlling input and oil return solenoid valve 32 for solenoid 34 is connected with the control output end of controller respectively，The air inlet of the first air inlet electromagnetic valve 22、The air inlet of the second air inlet electromagnetic valve 20、The air inlet of first exhaust electromagnetic valve 31、The air inlet of second exhaust electromagnetic valve 33、Air inlet gas outlet with barostat 16 respectively for the air inlet of solenoid 34 and oil return solenoid valve 32 is connected，22 gas outlets of the first air inlet electromagnetic valve are connected with the control end of the first flow inlet angle seat valve 18，The gas outlet of the second air inlet electromagnetic valve 20 is connected with the control end of the second flow inlet angle seat valve 21，The gas outlet of first exhaust electromagnetic valve 31 is connected with the control end of first exhaust angle pedestal valve 17，The gas outlet of second exhaust electromagnetic valve 33 is connected with the control end of second exhaust angle pedestal valve 19，Gas outlet for solenoid 34 is connected with the control end of delivery angle seat valve 23，The gas outlet of oil return solenoid valve 32 is connected with the control end of oil return angle pedestal valve 12，First flow inlet angle seat valve 18、On the trachea at the second flow inlet angle seat valve 21 place and first exhaust angle pedestal valve 17、Choke valve 8 it is connected in series with respectively on the exhaustor at second exhaust angle pedestal valve 19 place，The steam vent of the first air inlet electromagnetic valve 22、The steam vent of the second air inlet electromagnetic valve 20、The steam vent of first exhaust electromagnetic valve 31、The steam vent of second exhaust electromagnetic valve 33、Steam vent for solenoid 34、The steam vent of oil return solenoid valve 32、The air vent of first exhaust angle pedestal valve 17 and the air vent of second exhaust angle pedestal valve 19 are separately installed with the deafener 14 for eliminating exhaust sound.
Though the above-mentioned air pressure-loading fueller for piston cooling nozzle performance test stand is not result in that machine oil produces temperature rise and achieves the regulation of charge oil pressure, but owing to it utilizes compressibility and the air inlet of air, the flow velocity of aerofluxus controls to export the loading of charge oil pressure, rate of debarkation, piston cooling nozzle for different model, loading required for experiment test, rate of debarkation requires difference, it is thus desirable to carry out the air inlet of correspondence, the flow velocity debugging of aerofluxus, owing to the piston cooling nozzle product type needing experiment test is many, need often to change the product type of piston cooling nozzle, thus need often to carry out air inlet, the flow velocity debugging of aerofluxus, during its operating cost, make troubles to user.
Utility model content
The purpose of this utility model is that providing a kind of to solve the problems referred to above is not result in that detecting medium machine oil produces temperature rise and the fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand easy to use.
This utility model is achieved through the following technical solutions above-mentioned purpose:
nullA kind of fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand，Including motor、Leading screw、Top board、Support tube、Movable plate、Follower sleeve、Shifting axle、Oil blocking barrel、Oil return pipe、Linear bearing、Bearing block and auxiliary fuel tank，The oil-in on described auxiliary fuel tank top is connected with the oil-out of fuel feeding oil sources，The described oil-out of auxiliary fuel tank bottom is connected with the oil-in of piston cooling nozzle，The base plate of described bearing block is installed on above described auxiliary fuel tank，The top of described bearing block is provided with bearing cavity，Described linear bearing is installed in described bearing bore body，The center of the base plate of described bearing block is provided with the vertical bearing block through hole communicated with described bearing cavity，The drain pan communicated with described bearing block through hole it is provided with in described bearing block，The cell wall of described drain pan be provided with simultaneously with the horizontal oil leak hole communicated outside described drain pan and described bearing block，The bottom of described shifting axle is installed in described linear bearing and can move up and down and the lower end of described shifting axle can move up and down in described drain pan，The upper end of described shifting axle is connected with the lower end of described follower sleeve，The upper end of described follower sleeve is connected with described movable plate，The center of described movable plate is provided with vertical screw，The bottom of described leading screw is connected with described screw by self external screw thread，The upper end of described leading screw is connected with the rotating shaft of described motor，Described oil blocking barrel is installed on described auxiliary fuel tank，Described support tube is installed on described oil blocking barrel，Described mounting of roof plate is on described support tube，Described motor is installed on described top board，The rotating shaft of described motor is through the central through hole of described top board，Described leading screw、Described movable plate、Described follower sleeve、Described shifting axle、Described linear bearing and described bearing block are placed in the inner space of described support tube and described oil blocking barrel composition，The bottom of described oil blocking barrel is provided with oil drain out，The oil-in of described oil return pipe is connected with the oil drain out of described oil blocking barrel，The oil-out of described oil return pipe is connected with the oil-in of described fuel feeding oil sources.
In said structure, auxiliary fuel tank is as the intermediate member between oil pump and piston cooling nozzle, also it is the necessary parts of fuel feeding hydraulic regulating device described in the utility model simultaneously, in the case of the input pressure holding of auxiliary fuel tank is constant, the oil pressure of its underpart oil-out is changed, it is achieved pressure regulation purpose by the oil pump capacity changing auxiliary fuel tank top；Motor is used for driving leading screw to rotate；Leading screw, for the rotary power of motor is converted to the vertical lines power of movable plate, drives movable plate to move up and down；Top board is used for support tube top seal the installation foundation as the guide post in motor and following preferred structure；Support tube is for sealing other corresponding component the installation foundation as other corresponding component；The rotary power of motor is converted to straight line power for coordinating with leading screw by movable plate, and drives follower sleeve and shifting axle to move up and down, simultaneously as the installation foundation of the spacing push rod in following preferred structure；Follower sleeve for being connected the steady transmission realizing between movable plate and shifting axle with movable plate and shifting axle；Shifting axle for being driven the oil pump capacity moving up and down and changing in drain pan by the movement in the drain pan of bearing block of its lower end by follower sleeve, thus realizes changing the purpose of the oil pump capacity at auxiliary fuel tank top；Oil blocking barrel is for by the fuel-displaced oil-feed tank blocked and be expelled to oil pump by oil return pipe at auxiliary fuel tank top；Linear bearing is for realizing freely moving up and down of shifting axle；The bearing block top for sealing pair fuel tank the design basis simultaneously as auxiliary fuel tank top oil outlet mechanism, and utilize the bearing cavity on its top to realize the removable installation of shifting axle.
In order to prevent movable plate displacement during moving up and down from causing the most greatly parts damages, described fuel feeding hydraulic regulating device also includes limit switch mounting blocks, upper limit position switch, spacing push rod and lower position switch, described limit switch mounting blocks is installed on the outer wall of described support tube, described upper limit position switch and described lower position switch are respectively arranged in the upper and lower of described limit switch mounting blocks, the inner of described spacing push rod is installed on described movable plate, the outer end of described spacing push rod through after the through hole on the barrel of described support tube described upper limit position switch and described lower position switch and described upper limit position switch and described lower position switch output signal can be made respectively, the signal output part of described upper limit position switch and the signal output part of described lower position switch are connected with the control input of described motor respectively.
Specifically, described upper limit position switch and described lower position switch are equipped with can contact with each other connection and spring leaf that normality is off-state and contact, described spring leaf and described contact connect as corresponding signal output part with holding wire respectively.
Preferably, described drain pan is the annular drain pan being centered around outside described bearing block through hole, the central axis of described drain pan and the central axes of described bearing block through hole, described oil leak hole is three and is uniformly distributed on the cell wall circumference of described drain pan, the total equivalent cross-sectional area of 3 oil leak hole is more than 1.8 times of oil-in equivalent cross-sectional area of described auxiliary fuel tank, and described drain pan flushes with described oil leak hole top.This structure can reduce auxiliary fuel tank low-pressure end pressure variable gradient and improve its high-pressure side pressure variable gradient, and make that the oil-out output pressure of auxiliary fuel tank is minimum can be close to zero simultaneously.
In order to make the smooth displacement of movable plate and will not rotate in movement, described fuel feeding hydraulic regulating device also includes guide post and copper sliding sleeve, the position being positioned at around described screw on described movable plate is uniformly provided with multiple guide through hole, multiple described copper sliding sleeve correspondences respectively are installed in multiple described guide through hole, the upper end of multiple described guide posts is installed on the bottom of described top board and is positioned at described support tube, and multiple described guide posts correspondence respectively is through multiple described copper sliding sleeves.
For the ease of installing leading screw, described fuel feeding hydraulic regulating device also includes round end flat key, thrust plate and deep groove ball bearing, it is connected by described round end flat key between the upper end of described leading screw with the rotating shaft of described motor, the two ends of the described thrust plate of strip are installed on the barrel of described support tube, the barrel of described follower sleeve is provided with cross through hole, described thrust plate passes described cross through hole, described deep groove ball bearing is installed on the middle part of described thrust plate, and the lower end of described leading screw is installed on described deep groove ball bearing and can rotate freely.
The beneficial effects of the utility model are:
This utility model uses step motor drive leading screw to rotate, and then drive shifting axle to move up and down, by shifting axle to the drain pan of setting in bearing block and blocking of oil leak hole, change the size of its draining output, form by-pass throttle pressure regulation, thus reach the purpose of output pressure regulation；Motor can control automatically to run by conventional program, easy to use；Motor is away from machine oil, and it runs and is not result in that detecting medium machine oil produces temperature rise；The structure of annular drain pan and multiple oil leak hole can reduce auxiliary fuel tank low-pressure end pressure variable gradient and improve its high-pressure side pressure variable gradient, it is that a kind of piston cooling nozzle that meets tests the optimization general layout to pressure change needs, can save the experiment test time, make that the oil-out output pressure of auxiliary fuel tank is minimum can be close to 0kPa simultaneously；The minimum change gradient of output pressure is less than 1kPa.
Accompanying drawing explanation
Fig. 1 is the test curve schematic diagram of piston cooling nozzle performance test；
Fig. 2 is the oil supply structure schematic diagram of the air pressure-loading fueller for piston cooling nozzle performance test stand that the applicant has applied for a patent；
Fig. 3 is that the master of the fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand described in the utility model regards partial cutaway view；
Fig. 4 is the left view partial cutaway view of the fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand described in the utility model；
Fig. 5 is the front sectional view of bearing block described in the utility model；
Fig. 6 is the top view of bearing block described in the utility model；
Fig. 7 is the left view sectional view of oil blocking barrel described in the utility model and oil return pipe；
Fig. 8 is the front sectional view of shifting axle described in the utility model；
Fig. 9 is the left view sectional view of follower sleeve described in the utility model；
Figure 10 is the front view of follower sleeve described in the utility model；
Figure 11 is the left view sectional view of thrust plate described in the utility model；
Figure 12 is the top view with Figure 11 as front view of thrust plate described in the utility model；
Figure 13 is the top view of movable plate described in the utility model；
Figure 14 is the top view of copper sliding sleeve described in the utility model；
Figure 15 is the top view of the copper sliding sleeve being provided with spacing push rod in copper sliding sleeve described in the utility model；
Figure 16 is the top view of spacing push rod described in the utility model；
Figure 17 is the front sectional view of support tube described in the utility model；
Figure 18 is the left view sectional view of support tube described in the utility model；
Figure 19 is the main TV structure schematic diagram of upper limit position switch described in the utility model and lower position switch；
Figure 20 is the left view after support tube described in the utility model installs limit switch, lower position switch and spacing push rod；
Figure 21 is the main TV structure schematic diagram of the piston cooling nozzle performance test stand after installing fuel feeding hydraulic regulating device described in the utility model；
Figure 22 is the left view structural representation of the piston cooling nozzle performance test stand after installing fuel feeding hydraulic regulating device described in the utility model；
Figure 23 is the oil supply structure schematic diagram of the piston cooling nozzle performance test stand after installing fuel feeding hydraulic regulating device described in the utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
nullAs shown in Fig. 3-Figure 20，Fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand described in the utility model，Including motor 40、Round end flat key 41、Leading screw 42、Thrust plate 64、Deep groove ball bearing 63、Guide post 44、Top board 43、Support tube 45、Movable plate 56、Copper sliding sleeve 46、Follower sleeve 47、Shifting axle 48、Oil blocking barrel 55、Oil return pipe 66、Linear bearing 49、Bearing block 50 and auxiliary fuel tank 52，The oil-in 54 on auxiliary fuel tank 52 top is connected with the oil-out of fuel feeding oil sources (not shown)，The oil-out 53 of auxiliary fuel tank 52 bottom and piston cooling nozzle are (see Figure 22、The piston cooling nozzle 114 of Figure 23) oil-in connect，The base plate of bearing block 50 is installed on above auxiliary fuel tank 52，The top of bearing block 50 is provided with bearing cavity 70，Linear bearing 49 is installed in bearing cavity 70，The center of the base plate of bearing block 50 is provided with the vertical bearing block through hole 73 communicated with bearing cavity 70，The drain pan 71 of the annular being provided with in bearing block 50 outside communicating and be centered around bearing block through hole 73 with bearing block through hole 73，The central axis of drain pan 71 and the central axes of bearing block through hole 73，The cell wall of drain pan 71 is provided with three the horizontal oil leak hole 72 simultaneously communicated with the outside of drain pan 71 and bearing block 50，Three oil leak hole 72 are uniformly distributed on the cell wall circumference of drain pan 71，The total equivalent cross-sectional area of 3 oil leak hole 72 is more than 1.8 times of equivalent cross-sectional area of the oil-in 54 of auxiliary fuel tank 52，Drain pan 71 flushes with oil leak hole 72 top；nullIn the bottom of shifting axle 48 is installed on linear bearing 49 and can move up and down and the lower end of shifting axle 48 can move up and down in drain pan 71 and bearing block through hole 73，The upper end of shifting axle 48 is connected with the lower end of follower sleeve 47，The upper end of follower sleeve 47 is connected with movable plate 56，The center of movable plate 56 is provided with vertical screw 85，The position being positioned at around screw 85 on movable plate 56 is uniformly provided with four guide through hole 84，Four copper sliding sleeve 46 correspondences respectively are installed in four guide through hole 84，The upper end of four guide posts 44 is installed on the bottom of top board 43 and is positioned at support tube 45，Multiple guide posts 44 correspondence respectively is through multiple copper sliding sleeves 46，The bottom of leading screw 42 is connected with screw 85 by self external screw thread，The upper end of leading screw 42 is connected by described round end flat key 41 with the rotating shaft of motor 40，The two ends of the thrust plate 64 of strip are installed on the barrel of support tube 45，The barrel of follower sleeve 47 is provided with cross through hole 80，Thrust plate 64 is through cross through hole 80，Deep groove ball bearing 63 is installed on the middle part of thrust plate 64，The lower end of leading screw 42 is installed on deep groove ball bearing 63 and can rotate freely；Oil blocking barrel 55 is installed on auxiliary fuel tank 52, support tube 45 is installed on oil blocking barrel 55, top board 43 is installed on support tube 45, motor 40 is installed on top board 43, the rotating shaft of motor 40 is through the central through hole of top board 43, leading screw 42, movable plate 56, follower sleeve 47, shifting axle 48, linear bearing 49 and bearing block 50 are placed in the inner space of support tube 45 and oil blocking barrel 55 composition, the bottom of oil blocking barrel 55 is provided with oil drain out, the oil-in of oil return pipe 66 is connected with the oil drain out of oil blocking barrel 55, and the oil-out of oil return pipe 66 is connected with the oil-in of described fuel feeding oil sources.
nullSuch as Fig. 3、Shown in Fig. 4 and Figure 16-Figure 20，In order to prevent movable plate 56 displacement during moving up and down from causing the most greatly parts damages，Fuel feeding hydraulic regulating device described in the utility model also includes limit switch mounting blocks 61、Upper limit position switch 60、Spacing push rod 57 and lower position switch 62，Limit switch mounting blocks 61 is installed in the deep gouge 93 on the outer wall of support tube 45，Upper limit position switch 60 and lower position switch 62 are respectively arranged in the upper and lower of limit switch mounting blocks 61，The inner of spacing push rod 57 is installed on close copper sliding sleeve 46，Copper sliding sleeve 46 is installed on movable plate 56，The outer end of spacing push rod 57 through after the through hole 94 on the barrel of support tube 45 upper limit position switch 60 and lower position switch 62 and upper limit position switch 60 and lower position switch 62 output signal can be made respectively，Through hole 94 is positioned at deep gouge 93 region；Limit switch 95 is provided with can contact with each other connection and spring leaf 97 that normality is off-state and contact 96, spring leaf 97 and contact 96 connect as corresponding signal output part with holding wire 98 respectively, this signal output part is connected with the control input of motor 40, and limit switch 95 here refers to upper limit position switch 60 or lower position switch 62.
nullFig. 3 also show installation screw 51，Fig. 8 also show the big end flanges 75 on shifting axle 48 top、The shifting axle connecting hole 76 of big end flanges edge、The arc corners 77 of the small end cylinder of bottom，Fig. 9 also show the follower sleeve connecting hole 81 at the flange periphery of two ends up and down of follower sleeve 47，Figure 11 also show in the middle part of thrust plate 64 for installing installing deep gouge 83 and being positioned at the thrust plate connecting hole 82 of edge of thrust plate 64 of deep groove ball bearing 63，Figure 14 and Figure 15 also show the centre bore 86 passed on copper sliding sleeve 46 for guide post 44，Figure 15 also show the spacing push rod on the copper sliding sleeve 46 for installing spacing push rod 57 and installs deep gouge 87，Figure 16 also show the inner installing hole 88 of spacing push rod 57，Figure 17 also show and is symmetrical arranged on the barrel of support tube 45 and turns through hole 91 for installing the peace of thrust plate 64 and be positioned at the support tube connecting hole 92 at the flange periphery of two ends up and down of support tube 45.
As shown in Fig. 3-Figure 20, basic functional principle for the fuel feeding hydraulic regulating device of piston cooling nozzle performance test stand described in the utility model is: motor 40 drives leading screw 42 to rotate, and then drive movable plate 56, follower sleeve 47 to move up and down together with shifting axle 48, by shifting axle 48 to the drain pan 71 of setting in bearing block 50 and blocking of oil leak hole 72, change the size of its draining output, formed by-pass throttle pressure regulation, thus reach regulate auxiliary fuel tank 52 oil-out 53 go out the purpose that oil pressure i.e. regulates the output pressure of this fuel feeding hydraulic regulating device.
When shifting axle 48 goes upward to upper limit extreme position; the output pressure of this fuel feeding hydraulic regulating device has reached close to 0kPa; as up in tried to continue to; output pressure the most no longer changes; spacing push rod 57 contacts upper limit position switch 60 makes its output signal control motor 40 out of service, can limit meaningless movement travel, save the operation time; improving operational efficiency, protection associated components is not damaged by.
When shifting axle 48 comes downwards to lower limit extreme position, as descending in tried to continue to, spacing push rod 57 contacts lower position switch 62 makes its output signal control motor 40 out of service, and associated components can be protected to be not damaged by.
During detection application, can also be according to the technical requirement of detected product, adjust upper and lower restraining position, by upper limit position adjustment to the minimum output pressure position required, by lower limit position adjustment to the high output pressure position required, with the further saving operation time, improve operational efficiency.
In order to the application for the fuel feeding hydraulic regulating device of piston cooling nozzle performance test stand described in the utility model is illustrated so that understanding, below the structure of piston cooling nozzle performance test stand and fuel feeding principle thereof being provided with this fuel feeding hydraulic regulating device is specifically described:
As shown in figure 21 and figure, the piston cooling nozzle performance test stand of this fuel feeding hydraulic regulating device 117 is installed mainly by air tank 1, air tank 2 112, delivery angle seat valve 1, delivery angle seat valve 2 110, oil return angle pedestal valve 1, oil return angle pedestal valve 2 108, oil return fuel tank 107, pressure transducer 106, flow inlet angle seat valve 1, flow inlet angle seat valve 2 102, aerofluxus angle pedestal valve 1, aerofluxus angle pedestal valve 2 103, valve (group) 104, air pressure adjustment unit 105, flow transducer 115, fixture 116, this fuel feeding hydraulic regulating device 117, target practice position measurement device 118 and pipeline etc. form.This experimental stand is alternately promoted the machine oil in air tank 1, air tank 2 112 to this fuel feeding hydraulic regulating device 117 by air pressure-loading, the operation of programme-control this fuel feeding hydraulic regulating device 117, it is achieved carry out segmentation pressure by 1. aerofluxus, 2. low speed blood pressure lowering, 3. low speed boosting, the 4. order of rapid pressure, 5. reduction of blood pressure in high-speed and regulate backward piston cooling nozzle 114 fuel feeding.
nullThe oil channel structures of above-mentioned piston cooling nozzle performance test stand is as shown in figure 23，Mainly include outer air supply source 120、Air pressure adjustment unit 121、Supply air line 123、Air inlet electromagnetic valve 1、Flow inlet angle seat valve 1、Air inlet pipeline 1、Exhaust solenoid valve 1、Aerofluxus angle pedestal valve 1、Gas exhaust piping 1、Air inlet electromagnetic valve 2 134、Flow inlet angle seat valve 2 102、Air inlet pipeline 2 135、Exhaust solenoid valve 2 137、Aerofluxus angle pedestal valve 2 103、Gas exhaust piping 2 138、For solenoid 1、Delivery angle seat valve 1、Oil feed line 1、For solenoid 2 136、Delivery angle seat valve 2 110、Oil feed line 2 133、Oil return solenoid valve 1、Oil return angle pedestal valve 1、Return line 1、Oil return solenoid valve 2 132、Oil return angle pedestal valve 2 108、Return line 2 131、Exhaust silencer 122、Air tank 1、Air tank 2 112、This fuel feeding hydraulic regulating device 117、Flow transducer 115、Pressure transducer 106、Oil return fuel tank 107.
Above-mentioned oil circuit is provided the source of the gas of 6.5bar by outer air supply source 120, air pressure adjustment unit 121 be adjusted to the supply gas pressure set, and is supplied to air tank 1, air tank 2 112 by supply air line 123, air inlet pipeline 1, air inlet pipeline 2 135.
Supply air line 123, air inlet electromagnetic valve 1, flow inlet angle seat valve 1, air inlet pipeline 1 constitute the intake channel to air tank 1 supply.The switching of this intake channel is by programme-control air inlet electromagnetic valve 1, and then drives the mode of flow inlet angle seat valve 1 to realize, and implements air inlet by one 125 pairs of air tanks 1 of air inlet pipeline and loads.
Supply air line 123, air inlet electromagnetic valve 2 134, flow inlet angle seat valve 2 102, air inlet pipeline 2 135 constitute the intake channel to air tank 2 112 supply.The switching of this intake channel is by programme-control air inlet electromagnetic valve 2 134, and then drives the mode of flow inlet angle seat valve 2 102 to realize, and implements air inlet by 2 135 pairs of air tanks 2 112 of air inlet pipeline and loads.
Exhaust solenoid valve 1, aerofluxus angle pedestal valve 1, gas exhaust piping 1 constitute the exhaust channel from air tank 1 aerofluxus.The switching of this exhaust channel is by programme-control exhaust solenoid valve 1, and then drives the mode of aerofluxus angle pedestal valve 1 to realize, and implements aerofluxus by one 129 pairs of air tanks 1 of gas exhaust piping and unloads.
Exhaust solenoid valve 2 137, aerofluxus angle pedestal valve 2 103, gas exhaust piping 2 138 constitute the exhaust channel from air tank 2 112 aerofluxus.The switching of this exhaust channel is by programme-control exhaust solenoid valve 2 137, and then drives the mode of aerofluxus angle pedestal valve 2 103 to realize, and implements aerofluxus by 2 138 pairs of air tanks 2 112 of gas exhaust piping and unloads.
Constitute from air tank 1 to the first fuel feeding path of this fuel feeding hydraulic regulating device 117 fuel feeding for solenoid 1, delivery angle seat valve 1, oil feed line 1.The switching of this fuel feeding path is supplied solenoid 1 by programme-control, and then drives the mode of delivery angle seat valve 1 to realize, and passes through oil feed line 1 to this fuel feeding hydraulic regulating device 117 fuel feeding from air tank 1 under the effect of air pressure-loading.
Constitute from air tank 2 112 to the second fuel feeding path of this fuel feeding hydraulic regulating device 117 fuel feeding for solenoid 2 136, delivery angle seat valve 2 110, oil feed line 2 133.The switching of this fuel feeding path is supplied solenoid 2 136 by programme-control, and then drives the mode of delivery angle seat valve 2 110 to realize, and passes through oil feed line 2 133 to this fuel feeding hydraulic regulating device 117 fuel feeding from air tank 2 112 under the effect of air pressure-loading.
Oil return solenoid valve 1, oil return angle pedestal valve 1, return line 1 constitute the way to cycle oil returning machine oil from oil return fuel tank 107 to air tank 1.The switching of this way to cycle oil is by programme-control oil return solenoid valve 1, and then drives the mode of oil return angle pedestal valve 1 to realize, and returns machine oil from oil return fuel tank 107 to air tank 1 gravity flow by return line 1 under gravity.
Oil return solenoid valve 2 132, oil return angle pedestal valve 2 108, return line 2 131 constitute the way to cycle oil returning machine oil from oil return fuel tank 107 to air tank 2 112.The switching of this way to cycle oil is by programme-control oil return solenoid valve 2 132, and then drives the mode of oil return angle pedestal valve 2 108 to realize, and returns machine oil from oil return fuel tank 107 to air tank 2 112 gravity flow by return line 2 131 under gravity.
The operation of programme-control this fuel feeding hydraulic regulating device 117, it is thus achieved that to the loading of piston cooling nozzle 114 charge oil pressure to be tried, unload and load, rate of debarkation.
With detection medium machine oil, load flow inlet angle seat valve 1 that air directly contacts, aerofluxus angle pedestal valve 1, flow inlet angle seat valve 2 102, aerofluxus angle pedestal valve 2 103, delivery angle seat valve 1, delivery angle seat valve 2 110, oil return angle pedestal valve 1, oil return angle pedestal valve 2 108 respectively by air inlet electromagnetic valve 1, exhaust solenoid valve 1, air inlet electromagnetic valve 2 134, exhaust solenoid valve 2 137, for solenoid 1, indirectly drive for solenoid 2 136, oil return solenoid valve 1, oil return solenoid valve 2 132, be not result in that machine oil produces temperature rise.
The frame for movement of above piston cooling nozzle performance test stand and oil channel structures thereof are other device supporting with this fuel feeding hydraulic regulating device 117; not being the object of this utility model protection, at this, explanation is the application principle for the ease of being further appreciated by this fuel feeding hydraulic regulating device 117.
Above-described embodiment is preferred embodiment of the present utility model; it it is not the restriction to technical solutions of the utility model; as long as the technical scheme that can realize on the basis of above-described embodiment without creative work, in the range of being regarded as falling into the rights protection of this utility model patent.
Claims (7)
- null1. the fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand，It is characterized in that: include motor、Leading screw、Top board、Support tube、Movable plate、Follower sleeve、Shifting axle、Oil blocking barrel、Oil return pipe、Linear bearing、Bearing block and auxiliary fuel tank，The oil-in on described auxiliary fuel tank top is connected with the oil-out of fuel feeding oil sources，The described oil-out of auxiliary fuel tank bottom is connected with the oil-in of piston cooling nozzle，The base plate of described bearing block is installed on above described auxiliary fuel tank，The top of described bearing block is provided with bearing cavity，Described linear bearing is installed in described bearing bore body，The center of the base plate of described bearing block is provided with the vertical bearing block through hole communicated with described bearing cavity，The drain pan communicated with described bearing block through hole it is provided with in described bearing block，The cell wall of described drain pan be provided with simultaneously with the horizontal oil leak hole communicated outside described drain pan and described bearing block，The bottom of described shifting axle is installed in described linear bearing and can move up and down and the lower end of described shifting axle can move up and down in described drain pan，The upper end of described shifting axle is connected with the lower end of described follower sleeve，The upper end of described follower sleeve is connected with described movable plate，The center of described movable plate is provided with vertical screw，The bottom of described leading screw is connected with described screw by self external screw thread，The upper end of described leading screw is connected with the rotating shaft of described motor，Described oil blocking barrel is installed on described auxiliary fuel tank，Described support tube is installed on described oil blocking barrel，Described mounting of roof plate is on described support tube，Described motor is installed on described top board，The rotating shaft of described motor is through the central through hole of described top board，Described leading screw、Described movable plate、Described follower sleeve、Described shifting axle、Described linear bearing and described bearing block are placed in the inner space of described support tube and described oil blocking barrel composition，The bottom of described oil blocking barrel is provided with oil drain out，The oil-in of described oil return pipe is connected with the oil drain out of described oil blocking barrel，The oil-out of described oil return pipe is connected with the oil-in of described fuel feeding oil sources.
- nullFuel feeding hydraulic regulating device for piston cooling nozzle performance test stand the most according to claim 1，It is characterized in that: described fuel feeding hydraulic regulating device also includes limit switch mounting blocks、Upper limit position switch、Spacing push rod and lower position switch，Described limit switch mounting blocks is installed on the outer wall of described support tube，Described upper limit position switch and described lower position switch are respectively arranged in the upper and lower of described limit switch mounting blocks，The inner of described spacing push rod is installed on described movable plate，The outer end of described spacing push rod through after the through hole on the barrel of described support tube described upper limit position switch and described lower position switch and described upper limit position switch and described lower position switch output signal can be made respectively，The signal output part of described upper limit position switch and the signal output part of described lower position switch are connected with the control input of described motor respectively.
- Fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand the most according to claim 2, it is characterized in that: being equipped with on described upper limit position switch and described lower position switch and can contact with each other connection and spring leaf that normality is off-state and contact, described spring leaf and described contact connect as corresponding signal output part with holding wire respectively.
- Fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand the most according to claim 1, it is characterized in that: described drain pan is the annular drain pan being centered around outside described bearing block through hole, the central axis of described drain pan and the central axes of described bearing block through hole, described oil leak hole is three and is uniformly distributed on the cell wall circumference of described drain pan, the total equivalent cross-sectional area of 3 oil leak hole is more than 1.8 times of oil-in equivalent cross-sectional area of described auxiliary fuel tank, and described drain pan flushes with described oil leak hole top.
- 5. according to the fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand in any of the one of claim 1-4, it is characterized in that: described fuel feeding hydraulic regulating device also includes guide post and copper sliding sleeve, the position being positioned at around described screw on described movable plate is uniformly provided with multiple guide through hole, multiple described copper sliding sleeve correspondences respectively are installed in multiple described guide through hole, the upper end of multiple described guide posts is installed on the bottom of described top board and is positioned at described support tube, and multiple described guide posts correspondence respectively is through multiple described copper sliding sleeves.
- Fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand the most according to claim 5, it is characterized in that: described fuel feeding hydraulic regulating device also includes round end flat key, thrust plate and deep groove ball bearing, it is connected by described round end flat key between the upper end of described leading screw with the rotating shaft of described motor, the two ends of the described thrust plate of strip are installed on the barrel of described support tube, the barrel of described follower sleeve is provided with cross through hole, described thrust plate passes described cross through hole, described deep groove ball bearing is installed on the middle part of described thrust plate, the lower end of described leading screw is installed on described deep groove ball bearing and can rotate freely.
- 7. according to the fuel feeding hydraulic regulating device for piston cooling nozzle performance test stand in any of the one of claim 1-4, it is characterized in that: described fuel feeding hydraulic regulating device also includes round end flat key, thrust plate and deep groove ball bearing, it is connected by described round end flat key between the upper end of described leading screw with the rotating shaft of described motor, the two ends of the described thrust plate of strip are installed on the barrel of described support tube, the barrel of described follower sleeve is provided with cross through hole, described thrust plate passes described cross through hole, described deep groove ball bearing is installed on the middle part of described thrust plate, the lower end of described leading screw is installed on described deep groove ball bearing and can rotate freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620478590.3U CN205639173U (en) | 2016-05-24 | 2016-05-24 | A fuel feeding hydraulic pressure adjusting device for piston cooling nozzle performance experiment bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620478590.3U CN205639173U (en) | 2016-05-24 | 2016-05-24 | A fuel feeding hydraulic pressure adjusting device for piston cooling nozzle performance experiment bench |
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| Publication Number | Publication Date |
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| CN205639173U true CN205639173U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620478590.3U Withdrawn - After Issue CN205639173U (en) | 2016-05-24 | 2016-05-24 | A fuel feeding hydraulic pressure adjusting device for piston cooling nozzle performance experiment bench |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840585A (en) * | 2016-05-24 | 2016-08-10 | 中国工程物理研究院总体工程研究所 | Oil supply hydraulic adjusting device for piston cooling nozzle performance experiment bench |
-
2016
- 2016-05-24 CN CN201620478590.3U patent/CN205639173U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840585A (en) * | 2016-05-24 | 2016-08-10 | 中国工程物理研究院总体工程研究所 | Oil supply hydraulic adjusting device for piston cooling nozzle performance experiment bench |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161012 Effective date of abandoning: 20171031 |