CN203696939U - Repair tool for pivot shaft mounting hole end face corrosion of main landing gear - Google Patents
Repair tool for pivot shaft mounting hole end face corrosion of main landing gear Download PDFInfo
- Publication number
- CN203696939U CN203696939U CN201420034811.9U CN201420034811U CN203696939U CN 203696939 U CN203696939 U CN 203696939U CN 201420034811 U CN201420034811 U CN 201420034811U CN 203696939 U CN203696939 U CN 203696939U
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- CN
- China
- Prior art keywords
- face
- landing gear
- hinge axis
- installing hole
- main landing
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- Withdrawn - After Issue
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Abstract
The utility model discloses a repair tool for pivot shaft mounting hole end face corrosion of a main landing gear. The repair tool comprises an end face milling cutter, a locating shaft sleeve, a connecting shaft and a restraint part. The connecting shaft and a first center hole are fixed in the circumferential direction through a circumferential-direction fixing structure, the connecting shaft and a second center hole are in shaft and hole sliding or rolling fit, the end, on the side where the end face milling cutter is located, of the connecting shaft is a driving end, and the end, on the side where the positioning shaft sleeve is located, of the connecting shaft is a restraint end. The restraint part is matched with the restraint end so as to restrain the degree of freedom of the restraint end in the axial direction of the connecting shaft. A pivot shaft mounting hole end face can be repaired through the repair tool for pivot shaft mounting hole end face corrosion of the main landing gear.
Description
Technical field
The utility model relates to a kind of specific purpose tool, for the repairing of civil aircraft CRJ200 main landing gear hinge axis installing hole end face corrosion.
Background technology
Fig. 1 is the contour structures schematic diagram of CRJ200 aircraft, Fig. 2 is the A portion enlarged drawing of Fig. 1, can find out the assembly structure of main landing gear hinge axis, Fig. 3 is the B portion enlarged drawing of Fig. 2, the namely mount pad of hinge axis, the F-F cutaway view that Fig. 4 is Fig. 3, drawing does not draw hatching, but not affecting the identification of its structure, is the cutaway view after end face processing in figure, and right-hand member counterbore is the product after processing.
Carrying out in SB601R-57-047 aircraft conversion work, find that sometimes CRJ200 main landing gear hinge axis installing hole end face exists corrosion or crackle, this corrosion or crackle that just requires maintenance personal to exist hole end surface places under repair.Through consulting Pang Badi aircraft producer, Pang Badi aircraft producer does not process the special instrument of this problem at present, and producer authorizes Shandong Taikoo Aircraft Engineering Co., Ltd's designed, designed to make a set of repair outfit for the corrosion of CRJ200 main landing gear hinge axis installing hole end face.
Utility model content
Therefore, the specific purpose tool that provides a kind of main landing gear hinge axis installing hole end face corrosion to repair is provided the purpose of this utility model, realizes the finishing of hinge axis installing hole end face.
The utility model is by the following technical solutions:
A kind of main landing gear hinge axis installing hole end face corrosion repair outfit, comprising:
One face cutter, has the first centre bore, and is provided with circumferential fixed structure in this first centre bore;
One positioning shaft sleeve, has the second centre bore, and is at one end provided with the location shaft shoulder, wherein the axle sleeve of positioning shaft sleeve as cartridge sleeve body for hinge axis installing hole shaft hole matching, shaft shoulder diameter is greater than hinge axis installing hole;
One connecting axle, circumferentially fixes by described circumferential fixed structure with the first centre bore, coordinates and slide or roll with the second centre bore axis hole, and wherein this connecting axle is drive end in the termination of face cutter side, is restrained end in the termination of positioning shaft sleeve side; And
One constraint component, coordinates and retrains this end in the axial free degree of connecting axle with described restrained end.
Can find out from said structure, according to said structure of the present utility model, first face cutter is in place on connecting axle, the flank of tooth of face cutter is towards restrained end, and then restrained end, through hinge axis installing hole, is putting positioning shaft sleeve through end, and retrain by constraint component, just can locate milling face by positioning shaft sleeve face cutter like this, thereby can carry out facing cut by face cutter, the end face of hinge axis installing hole is repaired.
Above-mentioned main landing gear hinge axis installing hole end face corrosion repair outfit, the structural texture coordinating of rolling is in positioning shaft sleeve, to be provided with thrust bearing, this thrust bearing is arranged on the shaft shoulder end of positioning shaft sleeve, the second center nose end corresponding at the shaft shoulder has the counterbore for holding thrust metal hole, nationality to guarantee the structural compactness of assembly structure, also can guarantee the reliability of work by this counterbore simultaneously.And the existence of bearing can guarantee the smoothness of connecting axle work.
Above-mentioned main landing gear hinge axis installing hole end face corrosion repair outfit, described constraint component is feed nut, can conveniently adjust accordingly the depth of cut, and easily install and remove, correspondingly, described restrained end is one section of screw mandrel coordinating with described nut.
Above-mentioned main landing gear hinge axis installing hole end face corrosion repair outfit, is provided with spring shim between described feed nut and described thrust bearing, to guarantee the reliability of feed nut pressure holding thrust bearing.
Above-mentioned main landing gear hinge axis installing hole end face corrosion repair outfit, the number of described spring shim is 2, also can carry out gap adjustment by spring shim, and spring shim can provide initial elastic force, and nationality is by the power of elastic force providing end face milling cutters feeding.
Above-mentioned main landing gear hinge axis installing hole end face corrosion repair outfit, described location structure is U-shaped stop cotter way, correspondingly, is provided with the latch radially extending at it on connecting axle, simple in structure, cost is low, and convenient mounting or dismounting.
Above-mentioned main landing gear hinge axis installing hole end face corrosion repair outfit, described drive end is square toes, easily configures unit head.
Above-mentioned main landing gear hinge axis installing hole end face corrosion repair outfit, described face cutter is the variable-diameter structure that cutter tooth place end is large, opposite end is little, compact conformation, can guarantee overall structural strength and rigidity.
Above-mentioned main landing gear hinge axis installing hole end face corrosion repair outfit, in order to reach reasonable repairing effect, also composite have a deburring device, the installation site of this deburring device is face cutter, carry out end face finishing for replacing face cutter after end face milling, thereby it is corresponding is furnished with the 3rd centre bore, and be provided with circumferential fixed structure at the 3rd centre bore.
Above-mentioned main landing gear hinge axis installing hole end face corrosion repair outfit, the sword face of described deburring device is sand paper face, and is covered in deburring device respective face and is formed by sand paper, cost is low, is also convenient for changing.
Accompanying drawing explanation
Fig. 1 is the contour structures schematic diagram of CRJ200 aircraft.
Fig. 2 is the A portion enlarged drawing of Fig. 1, i.e. main landing gear and assembly structure schematic diagram.
Fig. 3 is the B portion enlarged drawing of Fig. 2, i.e. the structural representation of main landing gear hinge axis mount pad.
Fig. 4 is the F-F cutaway view of Fig. 3, and the structure after the processing of installing hole end face is shown.
Fig. 5 is the explosive view while configuring face cutter according to a kind of main landing gear hinge axis installing hole end face corrosion repair outfit of the present utility model.
Fig. 6 is the explosive view while configuring deburring device according to a kind of main landing gear hinge axis installing hole end face corrosion repair outfit of the present utility model.
1. power drill, 2, connecting bolt axle, 3, latch, 4, face cutter, 5, positioning shaft sleeve, 6, thrust bearing, 7, spring shim (two), 8. feed nut, 9. deburring device.
The specific embodiment
With reference to the preferred embodiment shown in Figure of description 5 and accompanying drawing 6, the repair outfit of a kind of CRJ200 main landing gear hinge axis installing hole end face corrosion shown in figure, comprising:
One face cutter 4, large end is provided with 4 cutters tooth, and small end is provided with U-shaped stop cotter way, and center is provided with 1 inch of through hole of diameter; Entirety forms big or small end structure for tapered transition reducing type configuration;
One connecting bolt axle 2, is line shaft, and big or small end structure, can be configured to multidiameter; When size end structure, small end is provided with one section of 1/2 inch of six square shaft, being connected in pneumatic power bores, power drill 1 as shown in Figure 5, coordinates with power drill 1 hexagonal hole, connects smoothness relatively good, guaranteed efficiency, it is 1 in2 0 tooth screw mandrel that large end is provided with one section of specification, and axle middle part is provided with 1/4 inch of radial direction through hole of a diameter, coordinates with latch;
One feed nut 8, one end is provided with chamfering, end face and the 6 end face laminatings of illustrated thrust bearing, specification is 1-1/2 inch six square toes, easy disassembly, the adjustment of feed nut 8, can obtain the relatively accurate amount of feeding;
One positioning shaft sleeve 5, one end is with the shaft shoulder, and as the lower end structure of positioning shaft sleeve in Fig. 5, shaft shoulder inner side is resisted against repairs on hole end surface, and shaft shoulder place centre bore does counterbore processing, and edge is joined thrust bearing, and axle sleeve centre bore coordinates with connecting bolt axle;
One latch 3, diameter is 1/4 inch, is provided with pin-and-hole at connecting bolt axle 3 with the position that face cutter 4 coordinates, and this latch is packed into.
In said structure, be a kind of face cutter of dish type, term name, this area is also referred to as plain milling cutter merely, for milling flat.In figure, cutter tooth is also on the end face of face cutter.
Do not repeat them here about face cutter, those skilled in the art can select according to concrete technical requirement.
In further improved structure, is furnished with spring shim 7, as shown in Figure 5 and Figure 6, centre bore coordinates with connecting bolt axle, and between feed nut 8 and thrust bearing 6, for guaranteeing that feed nut 8 compresses the reliability of thrust bearing, can provide on the other hand centripetal force on the one hand.
In some applications, composite deburring device 9, thus there is two procedures, deburring after first milling.
The small end of deburring device 9 is provided with 45 degree taperings, and the conical surface is pasted sand paper, and large end section is provided with U-shaped stop cotter way, and for coordinating with latch 3, center is provided with 1 inch of through hole of diameter.
For the introducing of power, can configure separately power drill 1(or ratchet spanner), drive connecting bolt axle.
According to said structure, positioning shaft sleeve 5 and spring shim 7 that face cutter 4 and each edge are joined thrust bearing are set up on connecting bolt axle 2, by latch 3 and feed nut 8, utilizing power drill 1(or ratchet spanner) Driving plane milling cutter 4 rotates, and realizes cutting lug end face corrosion area.
First, power drill can adopt pneumatic power to bore, and use pneumatic tool is carrier, when work, and Quick labor-saving and easy to operate.
Moreover erecting tools Configuration Design has been considered the service life of instrument, select the good 15-5PH 180-200KSI of intensity steel, greatly extended life tools.
Above-mentioned CRJ series aircraft passenger seats guide rail fastener installation tool, described face cutter 4, the large face cutter that is provided with 4 cutters tooth but be not limited to have 4 cutters tooth of holding, it is evident that, based on this, those skilled in the art can select the face cutter of other types, and with regard to face milling, the face cutter working method of different end-tooths is basic identical merely.
Foregoing small end is provided with U-shaped stop cotter way and can adopts other modes to replace, as keyway, replace by flat key, taper key or woodruff key, comparatively speaking, use as latch 3 be with respect to key connect a kind of more simplification selection.
Key connects and belongs to a kind of circumferentially fixed structure comparatively speaking, based on this, key connection is that a kind of power transmission is selected relatively preferably comparatively speaking, other circumferential fixed structure also can be selected, but it is slightly poor to want serviceability, some dismoutability effect is slightly poor, as the connection coordinating based on interference fit.And the structure connecting based on profile, assembling flexibility is slightly poor.
Face cutter center is provided with 1 inch of through hole of diameter; Entirety is tapered transition reducing type configuration, and overall materials are few, and guarantees the installation of end-tooth.
Described connecting bolt axle 2, small end is provided with one section of 1/2 inch of six square shaft, is connected in pneumatic power and bores, and coordinates with power drill hexagonal hole, and it is 1 in2 0 tooth screw mandrel that large end is provided with one section of specification, and axle middle part is provided with 1/4 inch of radial direction through hole of a diameter, coordinates with latch;
Described feed nut 8, one end is provided with chamfering, and end face and bearing face laminating, be 1-1/2 inch six square toes, easy disassembly.
Described positioning shaft sleeve 5, one end is with the shaft shoulder, and shaft shoulder inner side is resisted against repairs on hole end surface, and shaft shoulder place centre bore does counterbore processing, and edge is joined thrust bearing, and axle sleeve centre bore coordinates with connecting bolt axle.
Positioning shaft sleeve 5 as shown in Figure 5, utilizes the shaft shoulder excessively behind the hole shown in Fig. 4, forming location structure, and the shaft shoulder forms location abutment face, and this is more conventional in the axial location of axle.One end that the shaft shoulder is relative chamfering is preferably set, be inserted in hinge axis installing hole to facilitate.
Positioning shaft sleeve should have higher axiality with hinge axis installing hole, and to guarantee, end face milling has higher axiality, thereby positioning shaft sleeve and hinge axis installing hole preferably adopt the structure of matched in clearance.
Described latch 3, diameter is 1/4 inch, can meet the requirement of transmission.
Described power drill is H410-N90 type.
Claims (9)
1. a main landing gear hinge axis installing hole end face corrosion repair outfit, is characterized in that, comprising:
One face cutter (4), has the first centre bore, and is provided with circumferential fixed structure in this first centre bore;
One positioning shaft sleeve (5), has the second centre bore, and is at one end provided with the location shaft shoulder, wherein the axle sleeve of positioning shaft sleeve (5) as cartridge sleeve body for hinge axis installing hole shaft hole matching, shaft shoulder diameter is greater than hinge axis installing hole;
One connecting axle, circumferentially fixes by described circumferential fixed structure with the first centre bore, coordinates and slide or roll with the second centre bore axis hole, and wherein this connecting axle is drive end in the termination of face cutter side, is restrained end in the termination of positioning shaft sleeve side; And
One constraint component, coordinates and retrains this end in the axial free degree of connecting axle with described restrained end.
2. main landing gear hinge axis installing hole end face corrosion repair outfit according to claim 1, it is characterized in that, the structural texture coordinating of rolling is in positioning shaft sleeve (5), to be provided with thrust bearing (6), this thrust bearing is arranged on the shaft shoulder end of positioning shaft sleeve (5), and the second center nose end corresponding at the shaft shoulder has the counterbore for holding thrust metal hole.
3. main landing gear hinge axis installing hole end face corrosion repair outfit according to claim 2, is characterized in that, described constraint component is feed nut (8), and correspondingly, described restrained end is one section of screw mandrel coordinating with described nut (8).
4. main landing gear hinge axis installing hole end face corrosion repair outfit according to claim 3, is characterized in that, between described feed nut (8) and described thrust bearing (6), is provided with spring shim (7).
5. main landing gear hinge axis installing hole end face corrosion repair outfit according to claim 4, is characterized in that, the number of described spring shim (7) is 2.
6. according to the arbitrary described main landing gear hinge axis installing hole end face corrosion of claim 1 to 5 repair outfit, it is characterized in that, described drive end is square toes.
7. main landing gear hinge axis installing hole end face corrosion repair outfit according to claim 1, is characterized in that, described face cutter is the variable-diameter structure that cutter tooth place end is large, opposite end is little.
8. main landing gear hinge axis installing hole end face corrosion repair outfit according to claim 1, it is characterized in that, also composite have a deburring device (9), the installation site of this deburring device (9) is face cutter (4), carry out end face finishing for replacing face cutter after end face milling, thereby it is corresponding is furnished with the 3rd centre bore, and be provided with circumferential fixed structure at the 3rd centre bore.
9. main landing gear hinge axis installing hole end face corrosion repair outfit according to claim 8, is characterized in that, the sword face of described deburring device is sand paper face, and is covered in deburring device respective face and is formed by sand paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034811.9U CN203696939U (en) | 2014-01-21 | 2014-01-21 | Repair tool for pivot shaft mounting hole end face corrosion of main landing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034811.9U CN203696939U (en) | 2014-01-21 | 2014-01-21 | Repair tool for pivot shaft mounting hole end face corrosion of main landing gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203696939U true CN203696939U (en) | 2014-07-09 |
Family
ID=51047437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420034811.9U Withdrawn - After Issue CN203696939U (en) | 2014-01-21 | 2014-01-21 | Repair tool for pivot shaft mounting hole end face corrosion of main landing gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203696939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753505A (en) * | 2014-01-21 | 2014-04-30 | 山东太古飞机工程有限公司 | Repair tool for corroded end surface of mounting hole of hinge shaft of main landing gear |
-
2014
- 2014-01-21 CN CN201420034811.9U patent/CN203696939U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753505A (en) * | 2014-01-21 | 2014-04-30 | 山东太古飞机工程有限公司 | Repair tool for corroded end surface of mounting hole of hinge shaft of main landing gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140709 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |