CN210623489U - Power input fast switching equipment - Google Patents
Power input fast switching equipment Download PDFInfo
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- CN210623489U CN210623489U CN201921818571.0U CN201921818571U CN210623489U CN 210623489 U CN210623489 U CN 210623489U CN 201921818571 U CN201921818571 U CN 201921818571U CN 210623489 U CN210623489 U CN 210623489U
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Abstract
The utility model discloses a power input fast switching equipment, including reduction gears, freewheel clutching mechanism and electromagnetic clutching mechanism, freewheel clutching mechanism includes outer lane, mount and the inner circle of coaxial rotation in proper order from outside to inside, the inner circle is positive N limit shape structure, mount inside is annular array and rotates installation N group roller, N is more than or equal to 3, the axis of rotation of roller is parallel with the inner circle axis, the diameter of roller equals the radius difference of outer lane inner circle and inner circle inscribed circle, the inner circle is coaxial with reduction gears's output shaft, set up drive mechanism between the output shaft of outer lane and electromagnetic clutching mechanism, when electromagnetic clutching mechanism cuts off the power supply, electromagnetic clutching mechanism's input shaft combines with the output shaft, this power input fast switching equipment integrates two sets of independent power inputs simultaneously, and adopts different reduction gears, the power input can be switched quickly by adapting to different input modes.
Description
Technical Field
The utility model relates to a mechanical equipment technical field specifically is a power input fast switch over equipment.
Background
In the use of the civil air defense equipment, a lead screw is often used as a driving piece to drive internal components, the power input for driving the lead screw to rotate mostly adopts a motor or manpower to rotate, most of the existing driving mechanisms can select one from the two, when the screw has long stroke and more required rotating turns, most of the screws are driven by a motor, when the equipment is powered off, the screw cannot be driven, and additional manual driving equipment is required to be adopted for driving, when the manual driving is carried out, the motor is also required to be reversely driven to rotate, so that the load is increased, the driving efficiency is influenced, and when the motor is adopted for driving, because the rotating speed of the motor is high and the torque is small, when the motor is driven, the speed reduction and torque increase are needed by the aid of speed reduction equipment, and when manual driving is used instead, the manual driving stroke is increased due to the influence of the speed reducing device, and the rotating speed of the screw rod is slow.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a power input fast switch over equipment, the integrated two sets of independent power inputs of while, and adopt different gear reducer, the different input mode of adaptation realizes power input's fast switch over, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a power input fast switching device comprises a speed reducing mechanism, an overrunning clutch mechanism and an electromagnetic clutch mechanism, wherein the overrunning clutch mechanism comprises an outer ring, a fixed frame and an inner ring which coaxially rotate from outside to inside in sequence, the inner ring is of a regular N-edge structure, N groups of rollers are rotatably arranged in the fixed frame in an annular array mode, N is more than or equal to 3, the rotating axes of the rollers are parallel to the axis of the inner ring, and the diameter of each roller is equal to the radius difference between the inner circle of the outer ring and the inner circle of the inner ring;
the inner ring and the output shaft of the speed reducing mechanism are coaxially arranged, a transmission mechanism is arranged between the outer ring and the output shaft of the electromagnetic clutch mechanism, and when the electromagnetic clutch mechanism is powered off, the input shaft of the electromagnetic clutch mechanism is combined with the output shaft.
As a preferred technical scheme of the utility model, reduction gears is including coaxial first input shaft and the first output shaft of arranging, the sun gear is arranged to the outside coaxial fixed of first input shaft, the sun gear outside is the meshing of annular array and arranges the planet wheel, the outer ring gear is arranged to the outside fixed meshing of planet wheel, the fixed planet wheel carrier that arranges of first output shaft tip, the planet wheel rotates the installation with planet wheel carrier, first output shaft and freewheel clutching mechanism's the coaxial fixed mounting of inner circle, through the intermeshing of planet wheel with sun gear and outer ring gear, realize the speed reduction between first input shaft and the first output shaft and increase the turn round, this structure is small, light in weight, bearing capacity is high, the operation is steady, and the noise of use is little, is fit for narrow regional use.
As a preferred technical scheme of the utility model, electromagnetic clutch mechanism includes coaxial arrangement's second input shaft, second output shaft and leading truck, the inside spline groove that all sets up along the axial of second input shaft and second output shaft, the inside slidable mounting integral key shaft of spline groove, the integral key shaft outside rotates the installation plectrum, plectrum and leading truck slidable mounting, set up the spring between plectrum and the leading truck, the one end of keeping away from the second output shaft in the leading truck and the fixed position that corresponds with the plectrum set up the electro-magnet, second output shaft and drive mechanism's input shaft coaxial coupling, when the electro-magnet is electrified, drive the plectrum to second input shaft one side motion, drive the integral key shaft from the interior roll-off of second output shaft, break away from with the second output shaft to realize electromagnetic clutch mechanism power disconnection, when the electro-magnet cuts off the power supply, the integral key shaft is automatic re-setting under the effort of spring, the second input shaft is in power communication with the second output shaft.
As the utility model discloses a preferred technical scheme, drive mechanism includes the first bevel gear and the second bevel gear of axis perpendicular and intermeshing, first bevel gear arranges with the coaxial fixed of freewheel clutching mechanism's outer lane, second bevel gear arranges with the coaxial fixed of electromagnetic clutching mechanism's output shaft, through the bevel gear transmission, changes the direction of transmission of power, makes the input shaft of two powers can not take place to interfere when the installation, and is convenient for change, adjustment drive ratio through the tooth ratio of inside two sets of bevel gears.
As an optimal technical scheme of the utility model, freewheel clutch still include with the coaxial fixed terminal output shaft of arranging of outer lane, the tip of terminal output shaft is regular hexagonal prism, and the tip of terminal output shaft sets up coaxial regular hexagonal arris groove, through the shape design of terminal output shaft, be convenient for and have the combination of equipment, be fit for the upgrading transformation of old equipment.
Compared with the prior art, the beneficial effects of the utility model are that: this power input fast switch over equipment adopts two sets of power inputs to carry out power and provides, and two sets of power inputs can not cause the interference each other when the operation, and when one side was operated, need not reverse drive the other side, can not cause the load to increase, and two sets of power input equipment adopt different reduction gears, correspond the design with the input mode respectively, when guaranteeing the input torque, effectively shorten input stroke, lifting means's practicality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a cross-sectional view of the utility model at a;
FIG. 4 is a schematic view of the overrunning clutch mechanism of the present invention;
fig. 5 is a schematic view of the electromagnetic clutch mechanism of the present invention;
FIG. 6 is a schematic view of the spline shaft assembly of the present invention;
FIG. 7 is a sectional view of the overrunning clutch mechanism of the present invention;
fig. 8 is a schematic view of the speed reducing mechanism of the present invention.
In the figure: the device comprises a 1 speed reducing mechanism, a 101 outer gear ring, a 102 planetary gear, a 103 sun gear, a 104 first input shaft, a 105 first output shaft, a 2 overrunning clutch mechanism, a 201 outer ring, a 202 fixed frame, a 203 inner ring, 204 rollers, a 205 tail end output shaft, a 3 electromagnetic clutch mechanism, a 301 spline shaft, a 302 guide frame, a 303 second input shaft, a 304 electromagnet, a 305 spring, a 306 plectrum, a 4 transmission mechanism, a 401 first bevel gear and a 402 second bevel gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a power input fast switching device comprises a speed reducing mechanism 1, an overrunning clutch mechanism 2 and an electromagnetic clutch mechanism 3, wherein the overrunning clutch mechanism 2 comprises an outer ring 201, a fixed frame 202 and an inner ring 203 which coaxially rotate from outside to inside in sequence, the inner ring 203 is of a regular N-edge structure, N groups of rollers 204 are rotatably arranged in the fixed frame 202 in an annular array mode, N is larger than or equal to 3, the rotating axis of each roller 204 is parallel to the axis of the inner ring 203, and the diameter of each roller 204 is equal to the radius difference between the inner circle of the outer ring 201 and the inner tangent circle of the inner ring 203;
when the rotating speed of the inner ring 203 is higher than that of the outer ring 201, the inner ring 203 tends to rotate relative to the fixed frame 202, and the rollers 204 are locked because the outer diameter of the inner ring 203 is polygonal and the rotating radius of the outer diameter is inconsistent, so that the rollers 204 cannot rotate at the moment, the outer ring 201 and the inner ring 203 are forced to rotate synchronously, and power transmission is realized;
when the rotating speed of the outer ring 201 is higher than that of the inner ring 203, the outer ring 201 tends to rotate relative to the fixed frame 202, and because the inner diameter of the outer ring 201 is circular and the rotating radius is consistent, the rollers 204 cannot be locked and rotate synchronously with the outer ring 201, and the inner ring 203 cannot be forced to rotate together at the moment, so that the power transmission is disconnected.
The inner ring 203 is coaxially mounted with the output shaft of the speed reducing mechanism 1, the transmission mechanism 4 is arranged between the outer ring 201 and the output shaft of the electromagnetic clutch mechanism 3, and when the electromagnetic clutch mechanism 3 is powered off, the input shaft of the electromagnetic clutch mechanism 3 is combined with the output shaft.
The electromagnetic clutch mechanism 3 is arranged, when the speed reducing mechanism 1 provides power input, the power at the input end of the electromagnetic clutch mechanism 3 can be disconnected, and reverse dragging is avoided.
The speed reducing mechanism 1 comprises a first input shaft 104 and a first output shaft 105 which are coaxially arranged, a sun gear 103 is coaxially and fixedly arranged outside the first input shaft 104, planet gears 102 are arranged outside the sun gear 103 in an annular array in an engaged manner, an outer gear ring 101 is arranged outside the planet gears 102 in a fixed engaged manner, a planet gear carrier is fixedly arranged at the end of the first output shaft 105, the planet gears 102 and the planet gear carrier are rotatably mounted, the first output shaft 105 and an inner ring 203 of the overrunning clutch mechanism 2 are coaxially and fixedly mounted, and speed reduction and torque increase between the first input shaft 104 and the first output shaft 105 are realized through mutual engagement of the planet gears 102, the sun gear 103 and the outer gear ring 101.
The electromagnetic clutch mechanism 3 comprises a second input shaft 303, a second output shaft and a guide frame 302 which are coaxially arranged, spline grooves are axially arranged in the second input shaft 303 and the second output shaft, a spline shaft 301 is slidably arranged in the spline grooves, a shifting sheet 306 is rotatably arranged outside the spline shaft 301, the shifting sheet 306 is slidably arranged with the guide frame 302, a spring 305 is arranged between the shifting sheet 306 and the guide frame 302, an electromagnet 304 is fixedly arranged at one end of the guide frame 302 far away from the second output shaft and corresponding to the shifting sheet 306, the second output shaft is coaxially connected with the input shaft of the transmission mechanism 4, when the electromagnet 304 is electrified, the shifting sheet 306 is driven to move towards one side of the second input shaft 303, the spline shaft 301 is driven to slide out from the second output shaft and separate from the second output shaft, so as to realize the power disconnection of the electromagnetic clutch mechanism 3, when the electromagnet 304 is powered off, the spline shaft 301 automatically resets under the acting force of the spring 305, placing the second input shaft 303 in power communication with the second output shaft.
The transmission mechanism 4 comprises a first bevel gear 401 and a second bevel gear 402 which are vertical in axis and meshed with each other, the first bevel gear 401 and an outer ring of the overrunning clutch mechanism 2 are coaxially and fixedly arranged, the second bevel gear 402 and an output shaft of the electromagnetic clutch mechanism 3 are coaxially and fixedly arranged, the transmission direction of power is changed through bevel gear transmission, so that two input shafts of the power cannot interfere in installation, and the transmission ratio can be conveniently adjusted through the change of the gear ratio of two groups of bevel gears inside.
The overrunning clutch mechanism 2 further comprises a tail end output shaft 205 which is coaxially and fixedly arranged with the outer ring 201, the end portion of the tail end output shaft 205 is a regular hexagonal prism, and the end portion of the tail end output shaft 205 is provided with a coaxial regular hexagonal groove.
When in use: the first input shaft 105 is connected with an output shaft of an external motor, a handle for manual rotation is arranged at the end part of the second input shaft 303, and the tail end output shaft 205 is connected with an input screw rod of the civil air defense device;
when the equipment is powered on, the electromagnet 304 is electrified, the magnetic force adsorbs the poking sheet 306, the spline shaft 301 is separated from the second output shaft, the electromagnetic clutch mechanism 3 is in a separated state, the motor provides power input, the power is transmitted to the overrunning clutch mechanism 2 after the speed reduction mechanism 1 reduces the speed and increases the torque, the inner ring 203 drives the outer ring 201 to rotate, and therefore the power is transmitted to the tail end output shaft 205, and the whole power transmission is completed;
when the equipment is powered off, the electromagnet 304 is powered off, the shifting sheet 306 resets under the action of the spring 305 to drive the spline shaft 301 to be combined with the second output shaft again, the electromagnetic clutch mechanism 3 is in a communicated state at the moment, the handle is manually rotated, power is input through the electromagnetic clutch mechanism 3, power is input to the outer ring 201 through the transmission mechanism 4, power transmission cannot occur between the outer ring 201 and the inner ring 203 at the moment, and the power is completely transmitted to the tail end output shaft 205 to complete power transmission;
in the in-service use, can link electro-magnet 304 and motor, when the motor starts, electro-magnet 304 is electrified, and electromagnetic clutch mechanism 3 breaks away from, and when the motor stopped, electro-magnet 304 outage, electromagnetic clutch mechanism 3 intercommunication realize that manual power input can carry out at any time, and when the motor was imported, can not drive the handle rotation, avoids the handle rotation other problems that cause.
The utility model discloses a two sets of power input carry out power and provide, and two sets of power input when the operation, can not cause the interference each other, and when one side was operated, need not reverse drive the other side, can not cause the load to increase, and two sets of power input equipment adopt different decelerator, correspond the design with the input mode respectively, when guaranteeing the input torque, effectively shorten input stroke, lifting means's practicality.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A power input quick switching apparatus characterized in that: the overrunning clutch mechanism comprises a speed reducing mechanism (1), an overrunning clutch mechanism (2) and an electromagnetic clutch mechanism (3), wherein the overrunning clutch mechanism (2) comprises an outer ring (201), a fixed frame (202) and an inner ring (203) which coaxially rotate from outside to inside in sequence, the inner ring (203) is of a regular N-edge structure, N groups of rollers (204) are rotatably mounted in the fixed frame (202) in an annular array mode, N is more than or equal to 3, the rotating axis of each roller (204) is parallel to the axis of the inner ring (203), and the diameter of each roller (204) is equal to the radius difference between the inner circle of the outer ring (201) and the inscribed circle of the inner ring (203);
the inner ring (203) and the output shaft of the speed reducing mechanism (1) are coaxially arranged, a transmission mechanism (4) is arranged between the outer ring (201) and the output shaft of the electromagnetic clutch mechanism (3), and when the electromagnetic clutch mechanism (3) is powered off, the input shaft of the electromagnetic clutch mechanism (3) is combined with the output shaft.
2. The power input quick switching apparatus according to claim 1, characterized in that: the speed reducing mechanism (1) comprises a first input shaft (104) and a first output shaft (105) which are coaxially arranged, a sun gear (103) is coaxially and fixedly arranged outside the first input shaft (104), planet gears (102) are arranged outside the sun gear (103) in an annular array in a meshing manner, an outer gear ring (101) is fixedly arranged outside the planet gears (102) in a meshing manner, a planet carrier is fixedly arranged at the end part of the first output shaft (105), the planet gears (102) and the planet carrier are rotatably mounted, and the first output shaft (105) and an inner ring (203) of the overrunning clutch mechanism (2) are coaxially and fixedly mounted.
3. The power input quick switching apparatus according to claim 1, characterized in that: electromagnetic clutch mechanism (3) are including second input shaft (303), second output shaft and leading truck (302) of coaxial arrangement, second input shaft (303) and second output shaft are inside all to set up the spline groove along the axial, spline inslot portion slidable mounting integral key shaft (301), integral key shaft (301) outside rotation installation plectrum (306), plectrum (306) and leading truck (302) slidable mounting, set up spring (305) between plectrum (306) and leading truck (302), keep away from the one end of second output shaft in leading truck (302) and set up electro-magnet (304) with the fixed position that plectrum (306) correspond, the input shaft coaxial coupling of second output shaft and drive mechanism (4).
4. The power input quick switching apparatus according to claim 1, characterized in that: the transmission mechanism (4) comprises a first bevel gear (401) and a second bevel gear (402) which are vertical in axis and meshed with each other, the first bevel gear (401) and an outer ring of the overrunning clutch mechanism (2) are coaxially and fixedly arranged, and the second bevel gear (402) and an output shaft of the electromagnetic clutch mechanism (3) are coaxially and fixedly arranged.
5. The power input quick switching apparatus according to any one of claims 1 to 4, characterized in that: the overrunning clutch mechanism (2) further comprises a tail end output shaft (205) which is coaxially and fixedly arranged with the outer ring (201), the end part of the tail end output shaft (205) is a regular hexagonal prism, and a coaxial regular hexagonal groove is formed in the end part of the tail end output shaft (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818571.0U CN210623489U (en) | 2019-10-28 | 2019-10-28 | Power input fast switching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818571.0U CN210623489U (en) | 2019-10-28 | 2019-10-28 | Power input fast switching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623489U true CN210623489U (en) | 2020-05-26 |
Family
ID=70763753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921818571.0U Active CN210623489U (en) | 2019-10-28 | 2019-10-28 | Power input fast switching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623489U (en) |
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2019
- 2019-10-28 CN CN201921818571.0U patent/CN210623489U/en active Active
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