CN109555602A - Gear box oil return system - Google Patents
Gear box oil return system Download PDFInfo
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- CN109555602A CN109555602A CN201811504707.0A CN201811504707A CN109555602A CN 109555602 A CN109555602 A CN 109555602A CN 201811504707 A CN201811504707 A CN 201811504707A CN 109555602 A CN109555602 A CN 109555602A
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- Prior art keywords
- oil
- gear box
- gear
- transmission
- engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Details Of Gearings (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention provides a kind of gear box oil return systems, including transmission box body and gear box oil rig, gear box oil rig includes for aspirating lubricating oil out of gear box body by oil circuit and pumping the oil well pump of output, driving selection mechanism for driving the driving mechanism of oil pumping pump work and for selecting driving mechanism driving oil pumping pump work or aero-engine driving oil pumping pump work, oil circuit includes the first oil circuit being connected to for the drains receptacle with accessory drive casing and the second oil circuit for being connected to for the oil tank with aero-engine, gear box oil rig further includes the oil circuit selection mechanism for selecting oil well pump and the first oil circuit or the second oil communication.Different oil circuits is selected in the different operating conditions of aero-engine by oil circuit selection mechanism, is realized in the oil tank that the intracorporal lubricating oil of gear box is drawn back in the drains receptacle to accessory drive casing and drawn back when aero-engine shuts down by the intracorporal lubricating oil of gear box to aero-engine in aero-engine operating.
Description
Technical field
The present invention relates to aircraft engine accessory transmission technical fields, particularly, are related to a kind of gear box oil return system.
Background technique
The accessory drive casing of aero-engine is used for the transmission and installation of attachment, when aero-engine needs to be driven and pacify
It when the attachment of dress is more, is difficult to undertake on accessory drive casing, needs to design gear box accessory drive gear for auxiliary accessory
Transmission and installation.
In order to meet the requirement of aero-engine, need to draw back the intracorporal lubricating oil of gear box when aero-engine operates
To the drains receptacle of accessory drive casing, it is also necessary to when aero-engine shuts down by the intracorporal lubricating oil of gear box draw back to
In the oil tank of aero-engine.
Summary of the invention
The present invention provides a kind of gear box oil return systems, how will be driven box body in aero-engine operating with solution
Interior lubricating oil draw back in the drains receptacle of accessory drive casing and when aero-engine shuts down by the intracorporal cunning of gear box
Oil is drawn back to the problem in the oil tank of aero-engine.
The technical solution adopted by the invention is as follows:
A kind of gear box oil return system, including transmission box body and gear box oil rig, gear box oil rig include using
In by oil circuit aspirate out of gear box body lubricating oil and pump output oil well pump, for drive pump pump work driving mechanism
And the driving selection mechanism for selecting driving mechanism driving oil pumping pump work or aero-engine driving oil pumping pump work, oil
Road includes that the first oil circuit being connected to for the drains receptacle with accessory drive casing and the oil tank for aero-engine are connected to
The second oil circuit, gear box oil rig further includes for selecting the oil circuit of oil well pump and the first oil circuit or the second oil communication to select
It selects a good opportunity structure.
Further, oil well pump includes the oil pumping pump case for being used to form oil pumping space, is set in oil pumping pump case
Rotor and for drive rotor rotate transmission shaft, oil pumping pump case be equipped with for respectively at oil communication oil inlet and
Oil outlet.
Further, rotor includes that the internal rotor of rotation and the outer rotor with internal rotor eccentric setting are driven by transmission shaft,
Internal rotor has the cycloidal gear teeth, and outer rotor has the arc-shaped gear teeth, the number of gear teeth of the number of gear teeth of internal rotor than outer rotor
It is one few.
Further, driving mechanism uses the motor for driving transmission shaft to rotate, and motor passes through shear pin and transmission shaft
Connection.
Further, it is arranged on transmission shaft for the transmission gear with the cooperation of the transmission chain of aero-engine.
Further, gear box oil rig further includes the speed probe for measuring the revolving speed of transmission gear；Driving
Selection mechanism is using the freewheel clutch being set between transmission shaft and transmission gear.
Further, oil circuit selection mechanism is using the solenoid valve being set at the first oil circuit and the second oil communication, electricity
Flux Valve is equipped with the pipe fitting for being connected to the oil tank of aero-engine.
Further, transmission box body includes gear box shell for being mounted on accessory drive casing and is used for and transmission
To form the transmission box cover of transmission box body, gear box shell is equipped with for by the lubricating oil in accessory drive casing box shell closure
Import the intracorporal fuel feed hole of gear box, the oil well pump mounting base for installing oil well pump and for the transmission for aero-engine
Chain is across and into the intracorporal through-hole of gear box, the first oil circuit, the second oil circuit and the oil circuit for installing oil circuit selection mechanism
Selection mechanism mounting base is all set on gear box shell.
Further, the first oil circuit includes for the intracorporal lubricating oil of gear box to be imported to the oil-sucking hole in oil well pump, connection
Channel in the output end of oil well pump and the oil return hole that is connected to for the output end with channel.
Further, the second oil circuit includes oil-sucking hole, channel and the oil outlet being connected to for the output end with channel.
The invention has the following advantages:
Gear box oil return system of the invention, including transmission box body and gear box oil rig.Gear box oil rig packet
Include oil well pump, driving mechanism, driving selection mechanism and oil circuit selection mechanism.When aero-engine runs well, driving choosing
Structure of selecting a good opportunity selection drives oil pumping pump work by aero-engine, and oil circuit selection mechanism selects oil well pump and the first oil communication, takes out
Oil pump aspirates lubricating oil by the first oil circuit out of gear box body and pumps in output to the drains receptacle of accessory drive casing.Work as aviation
When engine stop operates, driving selection mechanism selection drives oil pumping pump work by driving mechanism, and oil circuit selection mechanism selection is taken out
Oil pump and the second oil communication, oil well pump aspirate lubricating oil by the second oil circuit out of gear box body and pump output to aeroplane engine
In the oil tank of machine.Power is provided for oil well pump when aero-engine shuts down by driving mechanism, is selected by driving
Mechanism carries out the driving selection of oil well pump, selects difference in the different operating conditions of aero-engine by oil circuit selection mechanism
Oil circuit, realization drawn back the intracorporal lubricating oil of gear box to accessory drive casing when aero-engine operates with same system
Drains receptacle in and when aero-engine shuts down the intracorporal lubricating oil of gear box is drawn back to the oil tank of aero-engine
It is interior, reduce the size of gear box accessory drive gear.Gear box oil return system of the invention, is verified through test run, is able to satisfy boat
The use demand of empty engine, has a good application prospect and social benefit.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is one of the schematic diagram of the gear box oil rig of the preferred embodiment of the present invention；
Fig. 2 is the two of the schematic diagram of the gear box oil rig of the preferred embodiment of the present invention；
Fig. 3 is the working principle diagram of the oil well pump of the preferred embodiment of the present invention；
Fig. 4 is the schematic diagram of the outer surface of the gear box shell of the preferred embodiment of the present invention；
Fig. 5 is the schematic diagram of the inner surface of the gear box shell of the preferred embodiment of the present invention；
Fig. 6 is the schematic diagram of the oil circuit of the preferred embodiment of the present invention；
Fig. 7 is the schematic diagram of the inner surface of the transmission box cover of the preferred embodiment of the present invention；
Fig. 8 is the schematic diagram of the outer surface of the transmission box cover of the preferred embodiment of the present invention.
Description of symbols:
1, it is driven box body；11, gear box shell；111, fuel feed hole；112, oil well pump mounting base；113, through-hole；1141, it inhales
Oilhole；1142, channel；1143, oil return hole；1144, oil outlet；115, oil circuit selection mechanism mounting base；116, the first central tooth
Wheel bearing seat；117, the first main fuel pump gear shaft holder；118, the first hydraulic pump gear bearing block；119, speed probe is pacified
Fill seat；1110, the first positioning chimb；1111, the first dowel hole；1112, the first bolt hole；12, it is driven box cover；121, second
Central gear bearing seat；122, main fuel pump mounting base；123, the second main fuel pump gear shaft holder；124, auxiliary fuel pump peace
Fill seat；125, auxiliary fuel pump tooth wheel bearing seat；126, mesomerism gear axis mounting base；127, hydraulic pump mount；128, second
Hydraulic pump gear bearing block；129, the second positioning chimb；1210, the second dowel hole；1211, the second bolt hole；1212, screw thread
Hole；2, oil well pump；21, oil pumping pump case；211, oil inlet；212, oil outlet；22, internal rotor；23, outer rotor；24, it is driven
Axis；25, transmission gear；26, speed probe；31, motor；32, shear pin；41, freewheel clutch；51, solenoid valve；52,
Pipe fitting.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is one of the schematic diagram of the gear box oil rig of the preferred embodiment of the present invention；Fig. 2 is preferred implementation of the present invention
The two of the schematic diagram of the gear box oil rig of example；Fig. 3 is the working principle diagram of the oil well pump of the preferred embodiment of the present invention；Fig. 4
It is the schematic diagram of the outer surface of the gear box shell of the preferred embodiment of the present invention；Fig. 5 is the gear box of the preferred embodiment of the present invention
The schematic diagram of the inner surface of shell；Fig. 6 is the schematic diagram of the oil circuit of the preferred embodiment of the present invention；Fig. 7 is preferred implementation of the present invention
The schematic diagram of the inner surface of the transmission box cover of example；Fig. 8 is the schematic diagram of the outer surface of the transmission box cover of the preferred embodiment of the present invention.
As depicted in figs. 1 and 2, the gear box oil return system of the present embodiment, including transmission box body 1 and gear box oil pumping dress
It sets, gear box oil rig includes for aspirating lubricating oil out of transmission box body 1 by oil circuit and pumping the oil well pump 2 of output, use
In the driving mechanism of the driving work of oil well pump 2 and for selecting driving mechanism driving oil well pump 2 work or aero-engine to drive
The driving selection mechanism that dynamic oil well pump 2 works, oil circuit includes the first oil circuit being connected to for the drains receptacle with accessory drive casing
The second oil circuit being connected to for the oil tank with aero-engine, gear box oil rig further include for selecting oil well pump 2
With the oil circuit selection mechanism of the first oil circuit or the second oil communication.Gear box oil return system of the invention, including transmission 1 He of box body
Gear box oil rig, gear box oil rig include oil well pump 2, driving mechanism, driving selection mechanism and oil circuit selection machine
Structure.When aero-engine runs well, driving selection mechanism selection is worked by aero-engine driving oil well pump 2, oil circuit choosing
Structure of selecting a good opportunity selects oil well pump 2 and the first oil communication, and oil well pump 2 aspirates lubricating oil out of transmission box body 1 by the first oil circuit and pumps
It send in output to the drains receptacle of accessory drive casing.When aero-engine shuts down, driving selection mechanism selection is by driving
Mechanism drives oil well pump 2 to work, and oil circuit selection mechanism selects oil well pump 2 and the second oil communication, and oil well pump 2 passes through the second oil circuit
Lubricating oil is aspirated out of transmission box body 1 and is pumped in output to the oil tank of aero-engine.By driving mechanism in aeroplane engine
Power is provided for oil well pump 2 when machine shuts down, is selected by the driving that driving selection mechanism carries out oil well pump 2, passes through oil circuit
Selection mechanism selects different oil circuits in the different operating conditions of aero-engine, and realization same system is in aeroplane engine
The lubricating oil being driven in box body 1 is drawn back in the drains receptacle of accessory drive casing and in aero-engine when machine operates and is shut down
When by be driven box body 1 in lubricating oil draw back to the oil tank of aero-engine, reduce the ruler of gear box accessory drive gear
It is very little.Gear box oil return system of the invention, is verified through test run, is able to satisfy the use demand of aero-engine, has good answer
With prospect and social benefit.
As shown in Fig. 2, oil well pump 2 includes the oil pumping pump case 21 for being used to form oil pumping space, is set in the present embodiment
Rotor in oil pumping pump case 21 and the transmission shaft 24 for driving rotor to rotate, oil pumping pump case 21 are equipped with for distinguishing
The oil inlet 211 and oil outlet 212 of the heart and oil communication.The rotation of transmission shaft 24 drives rotor rotation, and rotor rotation makes gear box
Lubricating oil in body 1 is inhaled into oil pumping pump case 21 from oil inlet 211, and then lubricating oil is discharged to oil pumping by oil outlet 212
Outside pump case 21.
As shown in Figures 2 and 3, in the present embodiment, rotor include by transmission shaft 24 drive rotation internal rotor 22 and with it is interior
The outer rotor 23 of 22 eccentric setting of rotor, internal rotor 22 have the cycloidal gear teeth, and outer rotor 23 has the arc-shaped gear teeth, internal rotor
22 number of gear teeth one fewer than the number of gear teeth of outer rotor 23.The wheel between cog of internal rotor 22 and outer rotor 23 is separated into multiple oil
Chamber.Internal rotor 22 is driven by transmission shaft 24 to be rotated, and outer rotor 23 is also with the equidirectional rotation of internal rotor 22.Exit the oil of engagement range
The volume of chamber becomes larger from small, and the pressure reduction in oil pocket, lubricating oil is inhaled into oil pocket from oil inlet 211.Then oil pocket enters and nibbles
Range is closed, the volume of oil pocket is gradually reduced, and lubricating oil is squeezed oil outlet chamber, is flowed out from oil outlet 212.
As depicted in figs. 1 and 2, in the present embodiment, driving mechanism uses the motor 31 for driving transmission shaft 24 to rotate.Electricity
Machine 31 is connect by shear pin 32 with transmission shaft 24.Shear pin 32 is connected for motor 31 and transmission shaft 24, is also used to realize biography
The function of dynamic torque and overload protection.When motor 31 is more than specified value or motor by the power that transmission shaft 24 is transmitted to oil well pump 2
31 when causing super torsion due to other reasons, and shear pin 32 is broken, and disengages motor 31 and oil well pump 2, protects oil well pump 2 not
It is damaged.
As shown in Fig. 2, being arranged on transmission shaft 24 in the present embodiment for the biography with the cooperation of the transmission chain of aero-engine
Moving gear 25.Transmission gear 25 and the transmission chain of aero-engine cooperate, and make aero-engine that transmission shaft 24 be driven to rotate, in turn
Oil well pump 2 is driven to work.Gear box oil rig further includes the speed probe 26 for measuring the revolving speed of transmission gear 25.Turn
Fast sensor 26 can measure the revolving speed of transmission gear 25, so that whether the revolving speed for monitoring transmission gear 25 is normal.
As shown in Fig. 2, driving selection mechanism, which uses, to be set between transmission shaft 24 and transmission gear 25 in the present embodiment
Freewheel clutch 41.When aero-engine runs well, the transmission chain of aero-engine and transmission gear 25 cooperate, surmount from
The driving link and driven member of clutch 41 combine, and transmission gear 25 drives freewheel clutch 41 and transmission shaft 24 to rotate, to drive
Dynamic oil well pump 2 works.When aero-engine shuts down, the driving link and driven member of freewheel clutch 41 are disengaged, by motor
31 driving oil well pumps 2 work.
As shown in Figure 1, oil circuit selection mechanism is used and is set at the first oil circuit and the second oil communication in the present embodiment
Solenoid valve 51.When aero-engine runs well, the second oil circuit is truncated solenoid valve 51, opens the first oil circuit.Work as boat
When empty engine stop operates, the first oil circuit is truncated solenoid valve 51, opens the second oil circuit.Solenoid valve 51 is equipped with and is used for
It is connected to the pipe fitting 52 of the oil tank of aero-engine.Oil tank of the pipe fitting 52 for connecting line to aero-engine.
As shown in Figure 4 and Figure 8, in the present embodiment, transmission box body 1 includes the transmission for being mounted on accessory drive casing
Box shell 11 and for being closed with gear box shell 11 to form the transmission box cover 12 of transmission box body 1, sets on gear box shell 11
The oil pumping for having the fuel feed hole 111 for importing the lubricating oil in accessory drive casing in transmission box body 1, being used to install oil well pump 2
Pump mounting base 112 and for the transmission chain for aero-engine across and into transmission box body 1 in through-hole 113, first oil
Road, the second oil circuit and the oil circuit selection mechanism mounting base 115 for installing oil circuit selection mechanism are all set in gear box shell
On 11.Transmission box body of the invention, including gear box shell 11 and transmission box cover 12.Gear box shell 11 can be pacified by bolt
Dress is fixed on accessory drive casing, and gear box shell 11 and transmission box cover 12 closure are to form transmission box body 1.Gear box shell
11 are equipped with fuel feed hole 111, oil well pump mounting base 112 and through-hole 113, and the lubricating oil in accessory drive casing passes through fuel feed hole
111 enter in transmission box body 1, and oil well pump mounting base 112 is equipped with driving mechanism, through-hole for installing oil well pump 2, oil well pump 2
113 enter driving oil well pump 2 work in transmission box body 1 convenient for the transmission chain of aero-engine.It is additionally provided on gear box shell 11
First oil circuit, the second oil circuit and oil circuit selection mechanism mounting base 115, oil circuit selection mechanism mounting base 115 is for installing oil circuit
Selection mechanism.When aero-engine runs well, aero-engine drives oil well pump 2 to work, and oil circuit selection mechanism selection is taken out
Oil pump 2 and the first oil communication, oil well pump 2 are aspirated lubricating oil out of transmission box body 1 by the first oil circuit and pump output to attachment
It is driven in the drains receptacle of casing.When aero-engine shuts down, driving mechanism drives oil well pump 2 to work, and oil circuit selects machine
Structure selects oil well pump 2 and the second oil communication, and oil well pump 2 aspirates lubricating oil out of transmission box body 1 by the second oil circuit and pumps defeated
Out in the oil tank of aero-engine.Difference is selected in the different operating conditions of aero-engine by oil circuit selection mechanism
Oil circuit, realize aero-engine operating when by be driven box body 1 in lubricating oil draw back in the drains receptacle to accessory drive casing
The lubricating oil being driven in box body 1 is drawn back to the oil tank of aero-engine with when aero-engine shuts down.The present invention
Gear box body weight is light, small in size, reliable operation, meet the demand of transmission, the installation and lubricating oil oil return of attachment, have
Good application prospect and social benefit.
As shown in Figure 4, Figure 5 and Figure 6, in the present embodiment, the first oil circuit includes that the lubricating oil for that will be driven in box body 1 imports
Oil-sucking hole 1141, connection in oil well pump 2 is in the channel 1142 of the output end of oil well pump 2 and for the output with channel 1142
Hold the oil return hole 1143 of connection.Lubricating oil in transmission box body 1 is inhaled into oil well pump 2 by oil-sucking hole 1141, and oil well pump 2 will be slided
Oil passes through in channel 1142 and the pumping output to the drains receptacle of accessory drive casing of oil return hole 1143.
As shown in Figure 4, Figure 5 and Figure 6, in the present embodiment, the second oil circuit includes oil-sucking hole 1141, channel 1142 and is used for
The oil outlet 1144 being connected to the output end in channel 1142.Lubricating oil in transmission box body 1 is inhaled into oil pumping by oil-sucking hole 1141
In pump 2, oil well pump 2 passes through lubricating oil in channel 1142 and the pumping output to the oil tank of aero-engine of oil outlet 1144.
As shown in figure 5 and figure 7, in the present embodiment, the inner surface of gear box shell 11 is equipped with for installing central gear
First central gear bearing seat 116 of axis, the inner surface of transmission box cover 12 are equipped in second for installing center gear shaft
Entreat gear shaft holder 121.Center gear shaft is pacified by the first central gear bearing seat 116 and the second central gear bearing seat 121
In transmission box body 1.
As shown in Fig. 5, Fig. 7 and Fig. 8, in the present embodiment, the outer surface of transmission box cover 12 is equipped with for installing main fuel
The main fuel pump mounting base 122 of pump, the inner surface of gear box shell 11 are equipped with the of the gear shaft for installing main fuel pump
The inner surface of one main fuel pump gear shaft holder 117, transmission box cover 12 is equipped with the of the gear shaft for installing main fuel pump
Two main fuel pump gear shaft holders 123.Main fuel pump is mounted on outside transmission box body 1 by main fuel pump mounting base 122, main fuel
Mounting hole is offered in pump mounting base 122, the gear shaft of main fuel pump is protruded into transmission box body 1 by mounting hole, main fuel pump
Gear shaft gear box is mounted on by the first main fuel pump gear shaft holder 117 and the second main fuel pump gear shaft holder 123
In body 1.
As shown in Figure 7 and Figure 8, in the present embodiment, the outer surface of transmission box cover 12 is equipped with for installing auxiliary fuel pump
Auxiliary fuel pump mounting base 124, transmission box cover 12 inner surface be equipped with for install auxiliary fuel pump gear shaft it is auxiliary
Combustion support fuel-oil pump gear shaft holder 125.Auxiliary fuel pump is mounted on outside transmission box body 1 by auxiliary fuel pump tooth wheel bearing seat 125,
Mounting hole is offered on auxiliary fuel pump tooth wheel bearing seat 125, the gear shaft of auxiliary fuel pump protrudes into gear box by mounting hole
In body 1, the gear shaft of auxiliary fuel pump is mounted in transmission box body 1 by auxiliary fuel pump tooth wheel bearing seat 125.
As shown in figure 8, the outer surface of transmission box cover 12 is equipped with the intermediary for installing mesomerism gear axis in the present embodiment
Gear shaft mounting base 126.Mounting hole is offered in mesomerism gear axis mounting base 126, mesomerism gear axis protrudes into biography by mounting hole
In dynamic box body 1, mesomerism gear axis is mounted on transmission box cover 12 by mesomerism gear axis mounting base 126.
As shown in Fig. 5, Fig. 7 and Fig. 8, in the present embodiment, the outer surface of transmission box cover 12 is equipped with for installing hydraulic pump
Hydraulic pump mount 127, the inner surface of gear box shell 11 is equipped with hydraulic for installing the first of the gear shaft of hydraulic pump
Pump tooth wheel bearing seat 118, the inner surface of transmission box cover 12 are equipped with the second hydraulic pump tooth for installing the gear shaft of hydraulic pump
Wheel bearing seat 128.Hydraulic pump is mounted on outside transmission box body 1 by hydraulic pump mount 127, is opened up on hydraulic pump mount 127
There is mounting hole, the gear shaft of hydraulic pump is protruded into transmission box body 1 by mounting hole, and the gear shaft of hydraulic pump passes through the first hydraulic pump
Gear shaft holder 118 and the second hydraulic pump gear bearing block 128 are mounted in transmission box body 1.
In the present embodiment, the transmission chain and central gear axis connection and band of the aero-engine in accessory drive casing
Dynamic center gear shaft rotation, center gear shaft driven by gear the gear shaft of main fuel pump, auxiliary fuel pump gear shaft with
And the rotation of mesomerism gear axis, main fuel pump provide fuel oil for aero-engine, auxiliary fuel pump provides fuel oil for main fuel pump.In
Jie's gear shaft drives transmission shaft 24 to rotate by gear and the cooperation of transmission gear 25, and then aero-engine is made to drive oil well pump 2
Work.Mesomerism gear axis is rotated by the gear shaft of gear band hydrodynamic press pump, and hydraulic pump will be in the oil tank of aero-engine
Hydraulic system after lubricating oil pressurization for aircraft uses.Suitable turn is provided by mesomerism gear axis for oil well pump 2 and hydraulic pump
Speed.
As shown in figure 5, the outer surface of gear box shell 11 is equipped with for installing speed probe 26 in the present embodiment
Speed probe mounting base 119.Speed probe 26 is mounted on outside transmission box body 1 by speed probe mounting base 119, is used for
Measure the revolving speed of transmission gear 25.
As shown in Fig. 4, Fig. 5, Fig. 7 and Fig. 8, in the present embodiment, gear box shell 11 is equipped with the first positioning chimb 1110,
It being driven box cover 12 and is equipped with the second positioning chimb 129, the first positioning chimb 1110 is equipped with multiple first dowel holes 1111, the
Two positioning chimbs 129 are equipped with multiple corresponding with the first dowel hole 1111 so as to positioning transmission box shell 11 and transmission box cover 12
The second dowel hole 1210, first positioning chimb 1110 be equipped with multiple first bolts hole 1112, second positioning chimb 129 on
Equipped with it is multiple it is corresponding with the first bolt hole 1112 so as to be closed gear box shell 11 and be driven box cover 12 the second bolts hole 1211,
Second positioning chimb 129 is equipped with multiple threaded holes 1212 for decomposing gear box shell 11 and being driven box cover 12.Passing through will
First dowel hole 1111 and the alignment of the second dowel hole 1210, and in the first dowel hole 1111 and the second dowel hole 1210
Interior insertion positioning pin comes positioning transmission box shell 11 and transmission box cover 12.Then in the first bolt hole 1112 and the second bolt hole
Insertion bolt is fixed in 1211, is closed gear box shell 11 and transmission box cover 12.Gear box shell 11 and transmission box cover 12 close
When conjunction, sealant also is coated on the first positioning chimb 1110 and the second positioning chimb 129 to improve leakproofness.When needing to decompose
When gear box shell 11 and transmission box cover 12, it is threaded into hole 1212 with screw, screw contact first is made to position chimb 1110,
To make gear box shell 11 and transmission box cover 12 disassemble and.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of gear box oil return system, including transmission box body (1) and gear box oil rig, which is characterized in that
The gear box oil rig includes for aspirating lubricating oil out of described transmission box body (1) by oil circuit and pumping output
Oil well pump (2), the driving mechanism for driving the oil well pump (2) to work and for selecting described in the driving mechanism drives
Oil well pump (2) work or aero-engine drive the driving selection mechanism of oil well pump (2) work,
The oil circuit includes the first oil circuit being connected to for the drains receptacle with accessory drive casing and is used for and the aeroplane engine
Machine oil tank connection the second oil circuit, the gear box oil rig further include for select the oil well pump (2) with it is described
The oil circuit selection mechanism of first oil circuit or second oil communication.
2. gear box oil return system according to claim 1, which is characterized in that
The oil well pump (2) includes the oil pumping pump case (21) for being used to form oil pumping space, is set to the oil pumping pump case
(21) rotor in and the transmission shaft (24) for driving the rotor rotation,
The oil pumping pump case (21) be equipped with for respectively with the oil inlet of the oil communication (211) and oil outlet (212).
3. gear box oil return system according to claim 2, which is characterized in that
The rotor includes being driven the internal rotor (22) of rotation by the transmission shaft (24) and being set with the internal rotor (22) bias
The outer rotor (23) set, the internal rotor (22) have the cycloidal gear teeth, and the outer rotor (23) has the arc-shaped gear teeth, described
The number of gear teeth of internal rotor (22) one fewer than the number of gear teeth of the outer rotor (23).
4. gear box oil return system according to claim 2, which is characterized in that
The driving mechanism uses the motor (31) for driving the transmission shaft (24) to rotate, and the motor (31) passes through shearing
Pin (32) is connect with the transmission shaft (24).
5. gear box oil return system according to claim 2, which is characterized in that
It is arranged on the transmission shaft (24) for the transmission gear (25) with the cooperation of the transmission chain of the aero-engine.
6. gear box oil return system according to claim 5, which is characterized in that
The gear box oil rig further includes the speed probe (26) for measuring the revolving speed of the transmission gear (25)；
The driving selection mechanism is using the overdrive clutch being set between the transmission shaft (24) and the transmission gear (25)
Device (41).
7. gear box oil return system according to claim 1, which is characterized in that
The oil circuit selection mechanism uses the solenoid valve (51) being set at first oil circuit and second oil communication,
The solenoid valve (51) is equipped with the pipe fitting (52) for being connected to the oil tank of the aero-engine.
8. gear box oil return system according to claim 1, which is characterized in that
Transmission box body (1) includes gear box shell (11) for being mounted on accessory drive casing and is used for and the biography
Dynamic box shell (11) are closed to form the transmission box cover (12) of transmission box body (1),
The gear box shell (11) is equipped with for the lubricating oil in the accessory drive casing to be imported the transmission box body (1)
Interior fuel feed hole (111), the oil well pump mounting base (112) for installing the oil well pump (2) and for for the aviation send out
The transmission chain of motivation across and into it is described transmission box body (1) in through-hole (113),
First oil circuit, second oil circuit and the oil circuit selection mechanism mounting base for installing the oil circuit selection mechanism
(115) it is all set on the gear box shell (11).
9. gear box oil return system according to claim 8, which is characterized in that
First oil circuit includes for the lubricating oil in transmission box body (1) to be imported to the oil-sucking hole in the oil well pump (2)
(1141), it is connected in the channel (1142) of the output end of the oil well pump (2) and for the output with the channel (1142)
Hold the oil return hole (1143) of connection.
10. gear box oil return system according to claim 9, which is characterized in that
Second oil circuit includes the oil-sucking hole (1141), the channel (1142) and is used for and the channel (1142)
The oil outlet (1144) of output end connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811504707.0A CN109555602B (en) | 2018-12-10 | 2018-12-10 | Oil return system of transmission box |
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| CN201811504707.0A CN109555602B (en) | 2018-12-10 | 2018-12-10 | Oil return system of transmission box |
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| CN109555602A true CN109555602A (en) | 2019-04-02 |
| CN109555602B CN109555602B (en) | 2020-02-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115977806A (en) * | 2023-02-13 | 2023-04-18 | 成都中科翼能科技有限公司 | External transmission casing structure of core machine of gas turbine |
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| CN204358404U (en) * | 2014-12-23 | 2015-05-27 | 中国南方航空工业(集团)有限公司 | A kind of built-in oil well pump |
| CN107202155A (en) * | 2017-06-02 | 2017-09-26 | 中国航发南方工业有限公司 | Aircraft engine accessory drive mechanism |
| CN207304283U (en) * | 2017-09-04 | 2018-05-01 | 中国航发南方工业有限公司 | It is driven wheel chamber casing |
| US20180266540A1 (en) * | 2015-01-19 | 2018-09-20 | Safran Transmission Systems | Integration of a pump on a pinion shank |
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| EP1298298A2 (en) * | 2001-09-26 | 2003-04-02 | Ingersoll-Rand Energy Systems Corporation | Turbine start and lubrication system |
| CN204358404U (en) * | 2014-12-23 | 2015-05-27 | 中国南方航空工业(集团)有限公司 | A kind of built-in oil well pump |
| US20180266540A1 (en) * | 2015-01-19 | 2018-09-20 | Safran Transmission Systems | Integration of a pump on a pinion shank |
| CN107202155A (en) * | 2017-06-02 | 2017-09-26 | 中国航发南方工业有限公司 | Aircraft engine accessory drive mechanism |
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| CN115977806A (en) * | 2023-02-13 | 2023-04-18 | 成都中科翼能科技有限公司 | External transmission casing structure of core machine of gas turbine |
| CN115977806B (en) * | 2023-02-13 | 2023-09-12 | 成都中科翼能科技有限公司 | External transmission casing structure of gas turbine core machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109555602B (en) | 2020-02-04 |
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