CN113864352B - Clutch suitable for short-distance vertical take-off and landing aircraft - Google Patents
Clutch suitable for short-distance vertical take-off and landing aircraft Download PDFInfo
- Publication number
- CN113864352B CN113864352B CN202111226060.1A CN202111226060A CN113864352B CN 113864352 B CN113864352 B CN 113864352B CN 202111226060 A CN202111226060 A CN 202111226060A CN 113864352 B CN113864352 B CN 113864352B
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- driven
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- short
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- 230000005540 biological transmission Effects 0.000 claims abstract description 74
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D11/00—Clutches in which the members have interengaging parts
- F16D11/16—Clutches in which the members have interengaging parts with clutching members movable otherwise than only axially
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D21/00—Systems comprising a plurality of actuated clutches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
- F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D11/00—Clutches in which the members have interengaging parts
- F16D2011/002—Clutches in which the members have interengaging parts using an external and axially slidable sleeve for coupling the teeth of both coupling components together
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
- F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
- F16D2023/141—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings characterised by using a fork; Details of forks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a clutch suitable for a short-distance vertical take-off and landing aircraft, which comprises a driving unit and a driven unit, wherein the driving unit comprises a driving shell and driving teeth, and the driving teeth are slidably arranged in the driving shell; the driven unit comprises a driven shell and driven teeth which are connected; the driving shell can be abutted with the driven shell and drive the driven shell to rotate; the driving teeth can extend into the driven shell and are matched with the driven teeth to drive the driven shell to rotate. According to the clutch suitable for the short-distance vertical take-off and landing aircraft, the driving shell can be propped against the driven shell, and the driving unit drives the driven unit to synchronously rotate, so that power transmission is realized in a low-power state; when the output power of the aircraft engine is increased, the driving shell and the driven shell rotate relatively, and when the output power of the aircraft engine is increased to a certain degree, the driving teeth extend into the driven shell and are matched with the driven teeth to drive the driven shell to rotate, so that high-power transmission is performed.
Description
Technical Field
The invention relates to the technical field of power transmission equipment and peripheral supporting facilities thereof, in particular to a clutch suitable for a short-distance vertical take-off and landing aircraft.
Background
The clutch is widely used in the traffic field as a mechanism for cutting off and transmitting power. With the continuous development of the aviation field, the exploration of the aircraft is more and more advanced, and then a short-distance vertical take-off and landing aircraft (short vertical aircraft for short) is developed, the aircraft realizes the vertical take-off and landing through a lift fan, and because the lift fan only needs to provide upward lift for the aircraft under the condition of vertical take-off and landing, a clutch is needed to realize the separation and the connection of power transmission between the lift fan and an aircraft engine, but the clutch needs to work under the condition of high rotating speed and high power, but the existing clutch cannot meet the requirement of acting on the short vertical take-off and landing aircraft, and the research on the aspect is not extensive.
Therefore, how to provide a clutch that works under high power and high rotational speed conditions to achieve power transmission and disconnection between the lift fan and the aircraft engine is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a clutch suitable for a short-distance vertical take-off and landing aircraft, so as to solve the problems in the prior art, enable the clutch to smoothly realize power transmission and disconnection between a lift fan and an aircraft engine, and improve the flight reliability of the short-distance vertical take-off and landing aircraft.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a clutch suitable for a short-distance vertical take-off and landing aircraft, comprising:
the driving unit comprises a driving shell and driving teeth, the driving shell can be in transmission connection with an output shaft of the aircraft engine, the driving teeth are slidably arranged in the driving shell, and the reciprocating sliding direction of the driving teeth relative to the driving shell is parallel to the rotation axis of the driving shell;
the driven unit comprises a driven shell and driven teeth which are connected, the driven teeth are arranged in the driven shell, and the driven shell can be in transmission connection with an input shaft of the aircraft fan;
the driving shell can be abutted with the driven shell and drive the driven shell to rotate; the driving teeth can extend into the driven shell and cooperate with the driven teeth to drive the driven shell to rotate.
Preferably, the driving unit further comprises a force transmission shaft sleeve, the force transmission shaft sleeve is arranged on one side, far away from the driven unit, of the driving shell, the force transmission shaft sleeve is connected with the driving shell in a sliding mode, the force transmission shaft sleeve is parallel to the axis of the driving shell relative to the sliding direction of the driving shell, one end of each driving tooth is connected with the force transmission shaft sleeve, and the other end of each driving tooth is connected with the driving shell in a sliding mode and can extend out of the driving shell.
Preferably, a first elastic element is arranged between the force transmission shaft sleeve and the driving shell, and the deformation direction of the first elastic element is parallel to the rotation axis of the driving shell.
Preferably, a second elastic member is disposed between the driven tooth and the driven housing, a deformation direction of the second elastic member is parallel to a rotation axis of the driving housing, and when the second elastic member is in a free state, an end surface of the driven tooth, which is close to the driving unit, is not higher than an end surface of the driven housing, which is close to the driving unit.
Preferably, the driving teeth can extend into the driven housing and engage with the driven teeth.
Preferably, the number of the driving teeth and the number of the driven teeth are all multiple, the driving teeth are circumferentially and uniformly distributed around the axis of the driving shell, and the driven teeth are circumferentially and uniformly distributed around the axis of the driven shell.
Preferably, the tooth shapes of the driving teeth and the driven teeth are trapezoidal.
Preferably, the end surfaces of the driving housing and the driven housing, which are abutted against each other, are both provided with a friction layer made of a high friction coefficient material.
Preferably, the driving unit further comprises a driving end cover, and the driving end cover is arranged at one side of the force transmission shaft sleeve, which is far away from the driving shell; the driving end cover penetrates through the connecting part and is connected with the driving shell, and the diameter of the connecting part is smaller than that of the sliding part; the active end cover is detachably connected with the active shell;
the driven unit further comprises a driven end cover, the driven end cover is arranged on one side, far away from the driving unit, of the driven shell, the driven teeth are connected with the driven end cover, and the driven end cover is detachably connected with the driven shell.
Preferably, the driving housing is connected with a first shifting fork, the first shifting fork can drive the driving unit to move along a direction parallel to the axis of the driving housing, the force transmission shaft sleeve is connected with a second shifting fork, and the second shifting fork can drive the force transmission shaft sleeve to move relative to the driving housing.
Compared with the prior art, the invention has the following technical effects: the clutch suitable for the short-distance vertical take-off and landing aircraft comprises a driving unit and a driven unit, wherein the driving unit comprises a driving shell and driving teeth, the driving shell can be in transmission connection with an output shaft of an aircraft engine, the driving teeth are slidably arranged in the driving shell, and the reciprocating sliding direction of the driving teeth relative to the driving shell is parallel to the rotation axis of the driving shell; the driven unit comprises a driven shell and driven teeth which are connected, the driven teeth are arranged in the driven shell, and the driven shell can be in transmission connection with an input shaft of the aircraft fan; the driving shell can be abutted with the driven shell and drive the driven shell to rotate; the driving teeth can extend into the driven shell and are matched with the driven teeth to drive the driven shell to rotate.
The clutch suitable for the short-distance vertical take-off and landing aircraft comprises a driving unit and a driven unit, wherein the driving shell can be propped against the driven shell, the driving unit drives the driven unit to synchronously rotate, and the driving shell and the driven shell are in a relatively static state, so that power transmission is realized in a low-power state; when the output power of the aircraft engine is increased, the driving shell and the driven shell rotate relatively, and when the output power of the aircraft engine is increased to a certain degree, the driving teeth extend into the driven shell and are matched with the driven teeth to drive the driven shell to rotate, so that high-power transmission is performed. When the power transmission is cut off, the driving shell is separated from the driven shell, so that the power transmission is cut off. The clutch suitable for the short-distance vertical take-off and landing aircraft can meet the requirements of vertical take-off and landing of the aircraft.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a clutch suitable for use with a short-range vertical takeoff and landing aircraft of the present invention;
FIG. 2 is a schematic diagram of a disassembled configuration of an active unit of a clutch suitable for use in a short-range vertical takeoff and landing aircraft according to the present invention;
FIG. 3 is a schematic diagram of a disassembled structure of a driven unit of a clutch suitable for a short-range vertical takeoff and landing aircraft of the present invention;
FIG. 4 is a schematic cross-sectional view of a drive housing of a clutch suitable for use with a short-range vertical takeoff and landing aircraft according to the present invention;
FIG. 5 is a schematic structural view of an active end cap of a clutch suitable for use with a short-range vertical takeoff and landing aircraft of the present invention;
FIG. 6 is a schematic structural view of a force transfer sleeve of a clutch suitable for use in a short-range vertical takeoff and landing aircraft of the present invention;
FIG. 7 is a schematic end-on schematic view of a driven housing of a clutch suitable for use with a short-range vertical takeoff and landing aircraft of the present invention;
FIG. 8 is a schematic view of another end face configuration of a driven housing of a clutch suitable for use with a short-range vertical takeoff and landing aircraft of the present invention;
FIG. 9 is a schematic view of the structure of the driven tooth and the second spring of the clutch for a short-range vertical takeoff and landing aircraft of the present invention;
FIG. 10 is a schematic view of the configuration of the active teeth of the clutch of the present invention suitable for use in a short-range vertical takeoff and landing aircraft;
FIG. 11 is a schematic illustration of the operation of the clutch of the present invention adapted for use with a short-range vertical takeoff and landing aircraft;
wherein 1 is a driving unit, 101 is a driving shell, 102 is a driving tooth, 103 is a force transmission shaft sleeve, 104 is a first elastic piece, 105 is a driving end cover, 106 is a first shifting fork, 107 is a second shifting fork, 2 is a driven unit, 201 is a driven shell, 202 is a driven tooth, 203 is a second elastic piece, and 204 is a driven end cover.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a clutch suitable for a short-distance vertical take-off and landing aircraft, so as to solve the problems in the prior art, enable the clutch to smoothly realize power transmission and disconnection between a lift fan and an aircraft engine, and improve the flight reliability of the short-distance vertical take-off and landing aircraft.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1 to 11, fig. 1 is a schematic sectional structure of a clutch for a short vertical takeoff and landing aircraft according to the present invention, fig. 2 is a schematic sectional structure of a driving unit of a clutch for a short vertical takeoff and landing aircraft according to the present invention, fig. 3 is a schematic sectional structure of a driven unit of a clutch for a short vertical takeoff and landing aircraft according to the present invention, fig. 4 is a schematic sectional structure of a driving housing of a clutch for a short vertical takeoff and landing aircraft according to the present invention, fig. 5 is a schematic structural diagram of a driving end cover of a clutch for a short vertical takeoff and landing aircraft according to the present invention, fig. 6 is a schematic structural diagram of a force transmission sleeve of a clutch for a short vertical takeoff and landing aircraft according to the present invention, fig. 7 is a schematic structural diagram of an end face of a driven housing of a clutch for a short vertical takeoff and landing aircraft according to the present invention, fig. 8 is a schematic structural diagram of another end face of a driven housing of a clutch for a short vertical takeoff and landing aircraft according to the present invention, fig. 9 is a schematic structural diagram of driven teeth and a second elastic member of a clutch for a short vertical takeoff and landing aircraft according to the present invention, fig. 10 is a schematic structural diagram of a driving teeth for a clutch for a short vertical takeoff and landing aircraft according to the present invention.
The invention provides a clutch suitable for a short-distance vertical take-off and landing aircraft, which comprises a driving unit 1 and a driven unit 2, wherein the driving unit 1 comprises a driving shell 101 and driving teeth 102, the driving shell 101 can be in transmission connection with an output shaft of an aircraft engine, the driving teeth 102 are slidably arranged in the driving shell 101, and the reciprocating sliding direction of the driving teeth 102 relative to the driving shell 101 is parallel to the rotation axis of the driving shell 101; the driven unit 2 comprises a driven shell 201 and driven teeth 202 which are connected, wherein the driven teeth 202 are arranged in the driven shell 201, and the driven shell 201 can be in transmission connection with an input shaft of an airplane fan; the driving housing 101 can abut against the driven housing 201 and drive the driven housing 201 to rotate; the driving teeth 102 can extend into the driven housing 201 and cooperate with the driven teeth 202 to drive the rotation of the driven housing 201.
The clutch suitable for the short-distance vertical take-off and landing aircraft comprises a driving unit 1 and a driven unit 2, wherein a driving shell 101 can be propped against a driven shell 201, the driving unit 1 drives the driven unit 2 to synchronously rotate, and the driving shell 101 and the driven shell 201 are in a relatively static state so as to realize power transmission in a low-power state; when the output power of the aircraft engine increases, the driving shell 101 and the driven shell 201 rotate relatively, and when the output power of the aircraft engine increases to a certain extent, the driving teeth 102 extend into the driven shell 201, and the driving teeth 102 and the driven teeth 202 cooperate to drive the driven shell 201 to rotate, so that high-power transmission is performed. When the power transmission is cut off, the driving housing 101 is separated from the driven housing 201, and the power transmission is cut off. The clutch suitable for the short-distance vertical take-off and landing aircraft can meet the requirements of vertical take-off and landing of the aircraft.
The driving unit 1 further includes a force transmission shaft sleeve 103, the force transmission shaft sleeve 103 is disposed on one side of the driving housing 101 away from the driven unit 2, the force transmission shaft sleeve 103 is slidably connected with the driving housing 101, the sliding direction of the force transmission shaft sleeve 103 relative to the driving housing 101 is parallel to the axis of the driving housing 101, one end of the driving tooth 102 is connected with the force transmission shaft sleeve 103, the other end of the driving tooth 102 is slidably connected with the driving housing 101 and can extend out of the driving housing 101, after the output power of the aircraft engine is increased, the force transmission shaft sleeve 103 drives the driving tooth 102 to extend out of the driving housing 101, and the driving tooth 102 and the driven tooth 202 cooperate to complete power transmission, so that the driving housing 101 drives the driven housing 201 again.
In this embodiment, a first elastic member 104 is disposed between the force transmission sleeve 103 and the driving housing 101, and the deformation direction of the first elastic member 104 is parallel to the rotation axis of the driving housing 101, and the first elastic member 104 plays a role in damping, and in addition, can play a role in quickly resetting the driving teeth 102. The first elastic member 104 may be a spring, and is sleeved outside the driving tooth 102, so that the installation is convenient.
Correspondingly, a second elastic member 203 is disposed between the driven tooth 202 and the driven housing 201, and a deformation direction of the second elastic member 203 is parallel to the rotation axis of the driving housing 101, when the second elastic member 203 is in a free state, an end surface of the driven tooth 202 near the driving unit 1 is not higher than an end surface of the driven housing 201 near the driving unit 1. The second elastic member 203 may also be a spring, when the driving housing 101 abuts against the driven housing 201 and generates relative rotation, the force transmission shaft sleeve 103 is used to drive the driving tooth 102 to extend into the driven housing 201, and the position of the driving tooth 102 when entering the driven housing 201 is not the position matched with the driven tooth 202 due to the relative rotation of the driving housing 101 and the driven housing 201, at this time, the driven tooth 202 can compress the second elastic member 203, so that a space is reserved for the driving tooth 102 to extend into the driven housing 201, and meanwhile, the driven tooth 202 is prepared for being matched with the driving tooth 102.
Specifically, the driving teeth 102 can extend into the driven housing 201 and be engaged with the driven teeth 202, so as to smoothly drive the driven unit 2 to rotate along with the driving unit 1. It should be noted that, in other embodiments of the present invention, the power transmission may be completed by the way that the driving tooth 102 and the driven tooth 202 are engaged, or by the way that the driving tooth 102 and the driven tooth 202 are connected, or by the way that both are abutted against each other, and it should be noted that when the driving tooth 102 and the driven tooth 202 are directly abutted against each other to complete the power transmission, the abutment surfaces of the driving tooth 102 and the driven tooth 202 need to be prevented from being separated in the rotation process, and the shape and the position of the abutment surfaces are reasonably set, so that the driving tooth 102 and the driven tooth 202 are abutted like a "clamped" so as to smoothly realize the power transmission and drive the driven housing 201 to rotate.
More specifically, the number of the driving teeth 102 and the driven teeth 202 is plural, the driving teeth 102 are circumferentially and uniformly distributed around the axis of the driving housing 101, the driven teeth 202 are circumferentially and uniformly distributed around the axis of the driven housing 201, the driving teeth 102 extend into the driven housing 201, and the driving teeth 102 extend into the driven teeth 202 to realize the jogging, so that the driving unit 1 and the driven unit 2 can synchronously rotate.
In this embodiment, the tooth shapes of the driving teeth 102 and the driven teeth 202 are trapezoidal, so that the transmission efficiency is improved, and in practical application, the shapes and the numbers of the driving teeth 102 and the driven teeth 202 can be set according to specific working conditions.
It should be emphasized that the end surfaces of the driving housing 101 and the driven housing 201, which are abutted against each other, are both provided with a friction layer, the friction layer is made of a material with a high friction coefficient, and the friction layer is provided to increase the friction coefficient between the abutted end surfaces of the driving housing 101 and the driven housing 201, so that the driving housing 101 can smoothly drive the driven housing 201 to synchronously rotate.
Further, the driving unit 1 further comprises a driving end cover 105, wherein the driving end cover 105 is arranged on one side of the force transmission shaft sleeve 103 away from the driving shell 101; the force transmission shaft sleeve 103 comprises a sliding part and a connecting part which are connected, the sliding part is slidably connected with the driving shell 101, the driving end cover 105 penetrates through the connecting part and is connected with the driving shell 101, and the diameter of the connecting part is smaller than that of the sliding part; the active end cover 105 is detachably connected with the active housing 101; the sliding part of the force transmission shaft sleeve 103 is slidably connected with the driving shell 101, one end of the driving tooth 102, far away from the driven unit 2, is connected with the force transmission shaft sleeve 103, the purpose of driving the driving tooth 102 to slide reciprocally relative to the driving shell 101 can be achieved by sliding the force transmission shaft sleeve 103 relative to the driving shell 101, the driving end cover 105 penetrates through the connecting part of the force transmission shaft sleeve 103 to be connected with the driving shell 101, the limit position of the sliding part of the force transmission shaft sleeve 103 is limited, and the structural stability and reliability of the driving unit 1 are improved.
Correspondingly, the driven unit 2 further comprises a driven end cover 204, the driven end cover 204 is arranged on one side, far away from the driving unit 1, of the driven shell 201, the driven teeth 202 are connected with the driven end cover 204, in the specific embodiment, the driven teeth 202 are connected with the driven end cover 204 by using the second elastic piece 203, and the driven end cover 204 is detachably connected with the driven shell 201, so that the driven end cover is convenient to disassemble and assemble. It should be further noted that, a groove is disposed on one side of the driven housing 201 close to the driving unit 1, a trapezoid groove adapted to the driven tooth 202 is disposed at the bottom of the groove, the driven tooth 202 can extend out of the trapezoid groove into the groove, a trapezoid groove adapted to the driving tooth 102 is disposed on one side of the driving housing 101 close to the driven unit 2, the driving tooth 102 can extend out of the trapezoid groove and enter into the groove of the driven housing 201, and is smoothly engaged with the driven tooth 202, so that power transmission is achieved, the trapezoid groove plays a role of guiding the driving tooth 102 and the driven tooth 202 in a reciprocating sliding manner, and working reliability of the clutch is improved. In other embodiments of the present invention, the driving end cover 105 and the driving housing 101, and the driven end cover 204 and the driven housing 201 are all connected by bolts, so that the connection is tight and the disassembly is convenient.
Furthermore, the driving housing 101 is connected with a first shift fork 106, the first shift fork 106 can drive the driving unit 1 to move along a direction parallel to the axis of the driving housing 101, a radial slot is formed on the side wall of the driving housing 101, the first shift fork 106 is connected with the driving housing 101 in a plugging manner, so as to drive the driving housing 101 to reciprocate along the axial direction, likewise, the force transmission shaft sleeve 103 is connected with a second shift fork 107, the second shift fork 107 can drive the force transmission shaft sleeve 103 to move relative to the driving housing 101, a radial slot is formed on the side wall of the force transmission shaft sleeve 103, the second shift fork 107 is connected with the force transmission shaft sleeve 103 in a plugging manner, so as to drive the force transmission shaft sleeve 103 to reciprocate along the axial direction, and in other embodiments of the invention, the driving housing 101 and the force transmission shaft sleeve 103 can also be driven by other mechanisms.
When the aircraft is in a take-off state, the first shifting fork 106 drives the driving unit 1 to prop against the driven unit 2, so that two end faces with friction layers are in contact to realize force transmission in a low-power state, then the driving teeth 102 are driven by the second shifting fork 107 to extend into grooves of the driven shell 201, the driven teeth 202 in the grooves are extruded and then retract, when the input power is increased to a certain degree, the driving unit 1 and the driven unit 2 generate relative rotation, when the end faces of the driving teeth 102 and the driven teeth 202 are staggered by a certain angle and are not contacted any more, the driven teeth 202 restore to the original position under the action of the second elastic piece 203, and the driving teeth 102 are clamped between the two driven teeth 202 to realize the embedded effect, and then high-power force transmission can be realized. When the power transmission is cut off, the driving teeth 102 are retracted to the original position through the second shifting fork 107, and then the two friction layers are separated through the first shifting fork 106, so that the power transmission is cut off. When the aircraft needs to land vertically, the working process of the clutch is the same as the working process of the aircraft during take-off.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (9)
1. A clutch suitable for short-range vertical take-off and landing aircraft, characterized in that: comprising the following steps:
the driving unit comprises a driving shell, driving teeth and a force transmission shaft sleeve, wherein the driving shell can be in transmission connection with an output shaft of an aircraft engine, the driving teeth are slidably arranged in the driving shell, and the reciprocating sliding direction of the driving teeth relative to the driving shell is parallel to the rotation axis of the driving shell;
the driven unit comprises a driven shell and driven teeth which are connected, the driven teeth are arranged in the driven shell, and the driven shell can be in transmission connection with an input shaft of the aircraft fan;
the driving shell can be abutted with the driven shell and drive the driven shell to rotate; the driving teeth can extend into the driven shell and cooperate with the driven teeth to drive the driven shell to rotate;
the power transmission shaft sleeve is arranged on one side, far away from the driven unit, of the driving shell, the power transmission shaft sleeve is connected with the driving shell in a sliding mode, the power transmission shaft sleeve is parallel to the axis of the driving shell relative to the sliding direction of the driving shell, one end of each driving tooth is connected with the power transmission shaft sleeve, and the other end of each driving tooth is connected with the driving shell in a sliding mode and can extend out of the driving shell.
2. The clutch suitable for use in a short-range vertical takeoff and landing aircraft according to claim 1, wherein: and a first elastic piece is arranged between the force transmission shaft sleeve and the driving shell, and the deformation direction of the first elastic piece is parallel to the rotation axis of the driving shell.
3. The clutch suitable for use in a short-range vertical takeoff and landing aircraft according to claim 2, wherein: the driven teeth and the driven shell are provided with a second elastic piece therebetween, the deformation direction of the second elastic piece is parallel to the rotation axis of the driving shell, and when the second elastic piece is in a free state, the end face of the driven teeth, which is close to the driving unit, is not higher than the end face of the driven shell, which is close to the driving unit.
4. The clutch suitable for use in a short-range vertical takeoff and landing aircraft according to claim 1, wherein: the driving teeth can extend into the driven shell and are embedded with the driven teeth.
5. The clutch suitable for use in a short-range vertical takeoff and landing aircraft according to claim 4, wherein: the number of the driving teeth and the number of the driven teeth are multiple, the driving teeth are circumferentially and uniformly distributed around the axis of the driving shell, and the driven teeth are circumferentially and uniformly distributed around the axis of the driven shell.
6. The clutch suitable for use in a short-range vertical takeoff and landing aircraft according to claim 5, wherein: the tooth shapes of the driving teeth and the driven teeth are trapezoidal.
7. The clutch suitable for use in a short-range vertical takeoff and landing aircraft according to claim 1, wherein: the end faces of the driving shell and the driven shell, which are abutted against each other, are provided with friction layers, and the friction layers are made of high friction coefficient materials.
8. The clutch suitable for use in a short-range vertical takeoff and landing aircraft according to claim 2, wherein: the driving unit further comprises a driving end cover, and the driving end cover is arranged on one side of the force transmission shaft sleeve, which is far away from the driving shell; the driving end cover penetrates through the connecting part and is connected with the driving shell, and the diameter of the connecting part is smaller than that of the sliding part; the active end cover is detachably connected with the active shell;
the driven unit further comprises a driven end cover, the driven end cover is arranged on one side, far away from the driving unit, of the driven shell, the driven teeth are connected with the driven end cover, and the driven end cover is detachably connected with the driven shell.
9. The clutch suitable for use in a short-range vertical takeoff and landing aircraft according to claim 1, wherein: the driving housing is connected with a first shifting fork, the first shifting fork can drive the driving unit to move along the direction parallel to the axis of the driving housing, the force transmission shaft sleeve is connected with a second shifting fork, and the second shifting fork can drive the force transmission shaft sleeve to move relative to the driving housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111226060.1A CN113864352B (en) | 2021-10-21 | 2021-10-21 | Clutch suitable for short-distance vertical take-off and landing aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111226060.1A CN113864352B (en) | 2021-10-21 | 2021-10-21 | Clutch suitable for short-distance vertical take-off and landing aircraft |
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| CN113864352B true CN113864352B (en) | 2023-10-24 |
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| JP2018053997A (en) * | 2016-09-28 | 2018-04-05 | 本田技研工業株式会社 | Power transmission device |
| JP2018154206A (en) * | 2017-03-16 | 2018-10-04 | トヨタ自動車株式会社 | Four-wheel-drive vehicular control apparatus |
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| CA1190872A (en) * | 1981-04-24 | 1985-07-23 | Richard L. Smirl | Fluid cooled clutch |
| JPS59155630A (en) * | 1983-02-25 | 1984-09-04 | Honda Motor Co Ltd | Tortional-vibration absorbing apparatus in power transmission system for vehicle |
| RU2238193C2 (en) * | 1998-09-09 | 2004-10-20 | Лук Ламеллен Унд Купплюнгсбау Бетайлигунгс Кг | Drive |
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| JP2018053997A (en) * | 2016-09-28 | 2018-04-05 | 本田技研工業株式会社 | Power transmission device |
| JP2018154206A (en) * | 2017-03-16 | 2018-10-04 | トヨタ自動車株式会社 | Four-wheel-drive vehicular control apparatus |
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| CN113864352A (en) | 2021-12-31 |
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