CN212804000U - Free slide block type centrifugal clutch for airplane cabin door - Google Patents
Free slide block type centrifugal clutch for airplane cabin door Download PDFInfo
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- CN212804000U CN212804000U CN202020716580.5U CN202020716580U CN212804000U CN 212804000 U CN212804000 U CN 212804000U CN 202020716580 U CN202020716580 U CN 202020716580U CN 212804000 U CN212804000 U CN 212804000U
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- fan
- output shaft
- outer shell
- centrifugal clutch
- deep groove
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
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Abstract
The utility model provides a free slider formula centrifugal clutch for aircraft hatch door, include: the device comprises an input shaft (1), a turntable (2), an outer shell (4), a steel ball (5), an output shaft (6), a sliding block (9) and a pin shaft (10); at least three ball sockets are correspondingly arranged on the adjacent end surfaces of the rotary table (2) and the output shaft (6), and the angles of the ball sockets are determined according to the weight of the aircraft cabin door; evenly be provided with on output shaft (6) along the fan-shaped spout of radial extension, be provided with fan-shaped slider (9) in each fan-shaped spout, be provided with the round pin axle slot on fan-shaped slider (9), round pin axle (10) pass the round pin axle slot and fix on the circumference of output shaft (6) through tight fit, fan-shaped slider (9) can be followed fan-shaped spout and round pin axle (10) and freely slided. The invention effectively solves the problem of overspeed protection when the cabin door actuating mechanism fails, and has the advantages of novel structure combination mode, automatic separation and the like.
Description
Technical Field
The utility model belongs to aircraft hatch door structure field, concretely relates to free slider formula centrifugal clutch for aircraft hatch door.
Background
The existing civil aircraft cabin door adopts a centrifugal clutch, so that the cabin door is prevented from accidentally falling when in failure.
The centrifugal clutch is a device which makes a centrifugal body generate inertial centrifugal force by the rotating speed of a driving part, transmits torque and rotating speed through the friction of the centrifugal body and a driven part, and realizes automatic engagement and disengagement in a non-stop state.
At present, most centrifugal clutches adopt a driven mechanism to be directly connected with a driving mechanism, and have the problems of poor stability, long engagement time, incapability of automatically disengaging and large starting torque.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the free slide block type centrifugal clutch for the airplane cabin door effectively solves the problem of overspeed protection when a cabin door actuating mechanism fails.
The utility model discloses a scheme:
the utility model provides a free slider formula centrifugal clutch for aircraft hatch door, include: the device comprises an input shaft 1, a turntable 2, an outer shell 4, a steel ball 5, an output shaft 6, a sector slide block 9 and a pin shaft 10; wherein,
one end of the input shaft 1 is connected with a rotating shaft of an airplane cabin door, and the other end of the input shaft is connected with the rotary disc 2 through a spline;
the rotary table 2 is arranged in the outer shell 4, the output shaft 6 is also arranged in the outer shell 4, at least three ball sockets are correspondingly arranged on the adjacent end surfaces of the rotary table 2 and the output shaft 6, one steel ball 5 is arranged in each ball socket, each ball socket is uniformly distributed on the end surface of the rotary table 2, and the angle of each ball socket is determined according to the weight of the cabin door of the airplane;
the fan-shaped sliding grooves extending along the radial direction are evenly formed in the output shaft 6, a fan-shaped sliding block 9 is arranged in each fan-shaped sliding groove, a pin shaft groove is formed in each fan-shaped sliding block 9, a pin shaft 10 penetrates through the pin shaft grooves and is fixed to the circumference of the output shaft 6 through tight fit, and the fan-shaped sliding blocks 9 can freely slide along the fan-shaped sliding grooves and the pin shafts 10.
Optionally, the free-slide centrifugal clutch for an aircraft door further comprises: an end cap 11;
the end cover 11 is arranged at one end of the outer shell 4 far away from the rotary disc 2;
the output shaft 6 is disposed in a cavity formed by the end cap 11 and the outer housing 4.
Optionally, the free-slide centrifugal clutch for an aircraft door further comprises: a screw 12;
the end cap 11 and the outer shell 4 are fixedly connected through the screw 12.
Optionally, the free-slide centrifugal clutch for an aircraft door further comprises: a deep groove ball bearing I3;
one end of the rotary table 2 is arranged in an inner ring of the deep groove ball bearing I3, and an outer ring of the deep groove ball bearing I3 is fixed on the inner wall of the outer shell 4.
Optionally, the free-slide centrifugal clutch for an aircraft door further comprises: a deep groove ball bearing II 7 with a dustproof cover at one end;
one end, provided with the ball socket, of the output shaft 6 is arranged in an inner ring of the deep groove ball bearing II 7, and an outer ring of the deep groove ball bearing II 7 is embedded on the inner wall of the outer shell 4.
Optionally, the free-slide centrifugal clutch for an aircraft door further comprises: a deep groove ball bearing III 8;
one end, far away from the steel ball 5, of the output shaft 6 is arranged in an inner ring of the deep groove ball bearing III 8, and an outer ring of the deep groove ball bearing III 8 is embedded in the inner face of the end cover 11.
The utility model has the advantages that:
the utility model provides a free slider formula centrifugal clutch for aircraft hatch door, include: the device comprises an input shaft 1, a turntable 2, an outer shell 4, a steel ball 5, an output shaft 6, a sector slide block 9 and a pin shaft 10; one end of the input shaft 1 is connected with a rotating shaft of an airplane cabin door, and the other end of the input shaft is connected with the rotary disc 2 through a spline; the rotary table 2 is arranged in the outer shell 4, the output shaft 6 is also arranged in the outer shell 4, at least three ball sockets are correspondingly arranged on the adjacent end surfaces of the rotary table 2 and the output shaft 6, one steel ball 5 is arranged in each ball socket, each ball socket is uniformly distributed on the end surface of the rotary table 2, and the angle of each ball socket is determined according to the weight of the cabin door of the airplane; the fan-shaped sliding grooves extending along the radial direction are evenly formed in the output shaft 6, a fan-shaped sliding block 9 is arranged in each fan-shaped sliding groove, a pin shaft groove is formed in each fan-shaped sliding block 9, a pin shaft 10 penetrates through the pin shaft grooves and is fixed to the circumference of the output shaft 6 through tight fit, and the fan-shaped sliding blocks 9 can freely slide along the fan-shaped sliding grooves and the pin shafts 10. The utility model provides a free slider formula centrifugal clutch for aircraft hatch door, effectual hatch door of having solved overspeed protection's when actuating the mechanism trouble problem.
Drawings
Fig. 1 is a first schematic structural view of a free slide block type centrifugal clutch for an aircraft door according to the present invention;
fig. 2 is a second schematic structural view of the free slide block type centrifugal clutch for an aircraft door according to the present invention;
description of reference numerals:
1-an input shaft; 2, rotating the disc; 3, a deep groove ball bearing I;
4-outer shell; 5, steel balls; 6-output shaft;
7-deep groove ball bearing II; 8-deep groove ball bearing III; 9-sector slide block;
10-a pin shaft; 11-end cap; 12-screws.
Detailed Description
Fig. 1 is the utility model provides a structural schematic diagram one of free slider formula centrifugal clutch for aircraft hatch door, fig. 2 is the utility model provides a structural schematic diagram two of free slider formula centrifugal clutch for aircraft hatch door, as shown in fig. 1 and fig. 2, the utility model provides a free slider formula centrifugal clutch for aircraft hatch door, include: the device comprises an input shaft 1, a turntable 2, a deep groove ball bearing I3, an outer shell 4, a steel ball 5, an output shaft 6, a deep groove ball bearing II 7, a deep groove ball bearing III 8, a sector sliding block 9, a pin shaft 10, an end cover 11 and a screw 12;
four groups of fan-shaped sliding blocks 9 are positioned in a cavity enclosed by the outer shell 4 and the end cover 11;
the input shaft 1 is used as a power input end and is connected with the rotary table 2 through a spline, the rotary table 2 is fixed on the left end surface of the outer shell 4 through a deep groove ball bearing I3, and three groups of ball sockets with the same specification are distributed on the rotary table 2;
the left end surface of the output shaft 6 is limited at the left end of the outer shell 4 through a deep groove ball bearing II 7 with a dustproof cover at one end, three groups of ball sockets with the same specification are also distributed on the output shaft 6, fan-shaped sliding blocks 9 extending along the radial direction are uniformly arranged on the outer circumferential surface at the right side of the output shaft 6, each sliding block is provided with a fan-shaped sliding block, sliding grooves capable of sliding freely are arranged on the sliding blocks, a pin shaft 10 penetrates through the fan-shaped sliding blocks and is fixed on the outer circumference at the right side of the output shaft through tight fit, the fan-shaped sliding blocks can slide freely along the sliding grooves of the output shaft and the pin shaft, when the fan-shaped sliding blocks move to be in contact with the inner surface of the outer shell along the radial direction of the sliding grooves under the action of inertial centrifugal force, dry friction is generated, a certain friction, The deep groove ball bearing III 8 prevents foreign matters which reduce the friction coefficient from entering a cavity which is formed by the outer shell 4 and the end cover 11.
The main working principle of the free slide type centrifugal clutch for the airplane door is as follows: under the normal working state, the input shaft of the centrifugal clutch is connected with the cabin door rotating shaft through a key, the normal opening and closing of the cabin door drives the input shaft of the centrifugal clutch to rotate, the ball socket on the input shaft drives the steel ball to rotate while the input shaft rotates, and the opening and closing speed of the normal cabin door is slow, so that the torque generated by the cabin door is generally born by the electromechanical and hydraulic functions of an actuator mechanism which is correspondingly matched, so that the steel ball in the ball socket of the input shaft slips and is not enough to drive the output shaft to rotate, and the output shaft and the fan-shaped sliding block at the right end of the output shaft are in a disengaged state without generating frictional resistance; when the actuating mechanism of the cabin door is in a stall state due to failure, the rotating speed input by the input shaft is suddenly increased, the transmitted torque is also increased, and the steel balls in the ball sockets of the input shaft generate a climbing phenomenon under high-speed rotation and move leftwards to be in contact with the ball socket at the left end of the output shaft to drive the output shaft to rotate; when the output shaft rotates, the fan-shaped sliding block in the sliding chute slides to the inner surface of the outer shell along the radial direction and contacts with the inner surface of the outer shell to generate frictional resistance, and the frictional resistance plays a role in overspeed protection of the cabin door.
Claims (6)
1. A centrifugal clutch of the free-sliding block type for an aircraft door, comprising: the device comprises an input shaft (1), a turntable (2), an outer shell (4), a steel ball (5), an output shaft (6), a sector sliding block (9) and a pin shaft (10); wherein,
one end of the input shaft (1) is connected with a rotating shaft of an airplane cabin door, and the other end of the input shaft is connected with the rotary disc (2) through a spline;
the rotary table (2) is arranged in the outer shell (4), the output shaft (6) is further arranged in the outer shell (4), at least three ball sockets are correspondingly arranged on the adjacent end surfaces of the rotary table (2) and the output shaft (6), one steel ball (5) is arranged in each ball socket, the ball sockets are uniformly distributed on the end surface of the rotary table (2), and the angles of the ball sockets are determined according to the weight of the aircraft cabin door;
the fan-shaped sliding grooves extending along the radial direction are uniformly formed in the output shaft (6), a fan-shaped sliding block (9) is arranged in each fan-shaped sliding groove, a pin shaft groove is formed in each fan-shaped sliding block (9), a pin shaft (10) penetrates through the pin shaft groove and is fixed to the circumference of the output shaft (6) through tight fit, and the fan-shaped sliding blocks (9) can freely slide along the fan-shaped sliding grooves and the pin shafts (10).
2. The free-slider centrifugal clutch according to claim 1, further comprising: an end cap (11);
the end cover (11) is arranged at one end of the outer shell (4) far away from the rotary disc (2);
the output shaft (6) is arranged in a cavity formed by the end cover (11) and the outer shell (4).
3. The free-slider centrifugal clutch according to claim 2, further comprising: a screw (12);
the end cover (11) and the outer shell (4) are fixedly connected through the screw (12).
4. The free-slider centrifugal clutch according to claim 1, further comprising: a deep groove ball bearing I (3);
one end of the rotary table (2) is arranged in an inner ring of the deep groove ball bearing I (3), and an outer ring of the deep groove ball bearing I (3) is fixed on the inner wall of the outer shell (4).
5. The free-slider centrifugal clutch according to claim 1, further comprising: a deep groove ball bearing II (7) with a dustproof cover at one end;
one end, provided with the ball socket, of the output shaft (6) is arranged in an inner ring of the deep groove ball bearing II (7), and an outer ring of the deep groove ball bearing II (7) is embedded on the inner wall of the outer shell (4).
6. The free-slider centrifugal clutch according to claim 3, further comprising:
a deep groove ball bearing III (8);
one end of the output shaft (6) far away from the steel ball (5) is arranged in an inner ring of the deep groove ball bearing III (8), and an outer ring of the deep groove ball bearing III (8) is embedded in the inner face of the end cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020716580.5U CN212804000U (en) | 2020-04-30 | 2020-04-30 | Free slide block type centrifugal clutch for airplane cabin door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020716580.5U CN212804000U (en) | 2020-04-30 | 2020-04-30 | Free slide block type centrifugal clutch for airplane cabin door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212804000U true CN212804000U (en) | 2021-03-26 |
Family
ID=75092603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020716580.5U Active CN212804000U (en) | 2020-04-30 | 2020-04-30 | Free slide block type centrifugal clutch for airplane cabin door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212804000U (en) |
-
2020
- 2020-04-30 CN CN202020716580.5U patent/CN212804000U/en active Active
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| GR01 | Patent grant |