Utility model content
The purpose of this utility model aim to provide a kind of simple in construction, small volume and can realize it is accurate control and switching it is many
Road transmission mechanism.
Another object of the present utility model is to provide a kind of to be realized down using above-mentioned changeable multichannel transmission mechanism
The antenna of tilt adjustment.
To achieve these goals, the utility model provides following technical scheme:
A kind of multichannel transmission mechanism, it is dynamic to be driven a wherein road direction phase shifter to export for being connected with main drive gear
Power, the multichannel transmission mechanism includes multiple with the first end being connected with phase shifter and the second end being connected with main drive gear
Power output shaft and for installing power output shaft and being available for it around the support body of axial rotation.The support body is provided with one and opened
If the panel of multiple resigning holes, the first end of the multiple power output shaft passes resigning hole and connects different phase shifts for correspondence
Device.The second end is provided with reset locking unit on the power output shaft, the reset locking unit can be when by thrust
Along power output shaft axially to first end motion, and moved in thrust decay to second end.
Preferably, the second end of the power output shaft is provided with the key teeth for being connected with main drive gear feather key, with
Make not relatively rotate between power output shaft and main drive gear, so as to accurately export the torque of main drive gear.
The multichannel transmission mechanism is according to the difference that mode is connected thereto on main drive gear, i.e. multichannel transmission mechanism and master
The difference of feather key structure between transmission mechanism, the key teeth can be substituted by the gear teeth or screw thread.
Preferably, the reset locking unit discharges the key including lock ring in the key teeth and under thrust
The locking cap of tooth and it is arranged between the locking cap and panel and for resetting the locking cap when thrust disappears to tight
Bind round the back-moving spring of the lock ring state of the key teeth.The locking cap states power output shaft in lock ring residence when not by external force, so that
Unnecessary output is not produced by the power output shaft of lock ring, to ensure that only one of which power output shaft is chosen output power.
Further, the locking cap is provided with for preventing the power output shaft from being driven in another power output shaft
The grab of power is exported when dynamic.Wherein, the grab is stuck in institute when the power output shaft and main drive gear are disconnected
State in key teeth.
Further, one end that the locking cap is connected with back-moving spring radially extends to be formed and resetted along power output shaft
The backing plate that spring is connected, to apply uniform pressure to back-moving spring when it is by thrust.
Further, the power output shaft is respectively provided with along inside and outside support body panel prevents power output shaft edge
First, second Skidproof structure of its axial direction activity.First, second Skidproof structure is used to lock the power output shaft
Axial location, prevent power output shaft from sliding axially or rocking along power output shaft.
Specifically, first Skidproof structure includes being arranged on the power output shaft along panel inner surface and along power
The spacing preiection that output shaft is radially extended.Preferably, the spacing preiection is ring-like.
Specifically, second Skidproof structure include along panel outer surface ring be located at the neck on the power output shaft with
And it is embedded jump ring or internal tooth back-up ring in the neck.The jump ring passes allowing on panel in the first end of power output shaft
Position is sticked into the neck behind hole, to prevent the rollback of stop power output shaft.Preferably, the jump ring is integrally formed with panel.
Specifically, the support body is also included in the multiple mounting rings set on the inside of panel, for real by the mounting ring
Existing support body is snapped connection with main drive gear.
In addition, the utility model additionally provides a kind of antenna, it includes multiple angle of declination adjusting meanss and above-mentioned multichannel is passed
Motivation structure so that antenna of the present utility model is that angle of declination control can be achieved only with a motor, a set of control circuit, so that
Reduce motor, control the supporting quantity of circuit, so as to simplify system, reduce the generation of fault, reduction production and dimension
Accomplish this, while reducing antenna volume, beneficial to the Miniaturization Design of system.
Compared with prior art, scheme of the present utility model has advantages below:
Multichannel transmission mechanism of the present utility model is simple in construction, small volume, its be used to have a down dip angle control system when, with it is main pass
Motivation structure is connected, and the one of connection for selecting multiple power output shafts is driven by main drive gear, is passed so as to realize by main
Branch road output power in the multiple branch roads of motivation structure selection switching, the mechanism can aid in main biography according to the demand of user
Motivation structure selects different power output shafts, and can carry out free switching between different output power branches.Due to this reality
The main drive gear only with a motor, a set of control circuit can be supported with new, so as to reduce motor, control circuit
Supporting quantity, so as to simplify system, reduces the generation of fault, reduction production and maintenance cost, while reducing antenna
Volume, beneficial to the Miniaturization Design of system.
The additional aspect of the utility model and advantage will be set forth in part in the description, and these are by from following description
In become obvious, or by it is of the present utility model practice recognize.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and can not be construed to of the present utility model
Limitation.
Referring to Fig. 1 to Fig. 7, the utility model provides a kind of multichannel transmission mechanism 1000, it is adaptable to Downtilt control
In system processed, it is connected with main drive gear 2000 (referring to Fig. 5) and phase shifter (not shown), to be selectively driven wherein one
Road direction phase shifter exports power, so as to realize angle of declination control.The multichannel transmission mechanism 1000 includes multiple with first end
110 and second end 120 power output shaft 100 and support body 200 for installing the multiple power output shaft 100.
With reference to Fig. 1 and Fig. 2, the support body 200 is provided with a panel 210, and the panel 210 is offered for the power
The resigning hole 211 that output shaft 100 is passed through.The first end 110 of the power output shaft 100 is through the resigning hole 211 and is used for
It is connected with phase shifter, the second end 120 of the power output shaft 100 is used to be connected with main drive gear 2000, is come from receiving
The power of main drive gear 2000 so to phase shifter export power.Set on the power output shaft 100 close to the second end 120
There is reset locking unit 121, to prevent the power output shaft 100 where it from being sent out when another power output shaft 100 is driven
Life rotates and exports power.
The effect of the support body 200 at least includes three aspects:
In a first aspect, the support body 200 is used for the position for fixing the power output shaft 100, multiple power outputs are realized
Being uniformly distributed on 360 degree of circumference of axle 100;
Second aspect, the support body 200 is used for the encapsulation of the multichannel transmission mechanism 1000 and main drive gear 2000, only protects
The first end 110 of the power output shaft 100 is stayed to expose outside;
The third aspect, the support body 200 is used for the core for protecting the reset locking unit 121 and main drive gear 2000
Part is without prejudice.
In summary, there is the support body 200 fixed power output shaft 100 to act on and protect core component to act on, simultaneously
It is attractive in appearance with assembling, it is easy to disassemble and the features such as safeguard.
Preferably, incorporated by reference to Fig. 1 and Fig. 4, the second end 120 of the power output shaft 100, which is provided with, to be used for and main transmission
The key teeth 122 of the feather key connection of mechanism 2000, to prevent stop power output shaft 100 when driving rotation by main drive gear 2000, is moved
Power output shaft 100 relatively rotates with main drive gear 2000 and influences the transmission of power, so as to ensure that angle of declination control
Accuracy.
In other embodiment of the present utility model, the key teeth 122 can be substituted by the gear teeth or screw thread, with inhomogeneity
The feather key of main drive gear 2000 connection of type, so as to prevent relative turn between power output shaft 100 and main drive gear 2000
It is dynamic.
Preferably, the second end 120 that the reset locking unit 121 protrudes from the power output shaft 100 is set, and can
Axially moved when by thrust along power output shaft 100 to the first end 110, to expose power output shaft 100
Second end 120 (being connected with main drive gear 2000);Move and finally coated to second end 120 in thrust decay
Second end 120, locking power output shaft 100, need not in order to avoid producing to prevent non-selected power output shaft 100 from rotating
The power output wanted.
Preferably, the reset locking unit 121 discharges institute including lock ring in the key teeth 122 and under thrust
State the locking cap 1212 of key teeth 122 and be arranged between the locking cap 1212 and panel 210 and be used for when thrust disappears
The locking cap 1212 is resetted to the back-moving spring 1213 of the lock ring state of key teeth described in lock ring 122.The locking cap 1212 is not
Power output shaft 100 is stated by lock ring residence during external force, to prevent the power output shaft 100 by lock ring from producing unnecessary output.
Preferably, the locking cap 1212 is provided with for preventing the power output shaft 100 in other power output shafts
100 export the grab 12121 of power when being driven, in one of the embodiments, the grab 12121 is in the power output shaft
100 are stuck on the fixed position of the key teeth 122 and main drive gear 2000 when being disconnected with main drive gear 2000, to prevent
Only the power output shaft 100 where it produces circular-rotation.
Further, prolong along the radial direction of power output shaft 100 one end that the locking cap 1212 is connected with back-moving spring 1213
The backing plate 12122 to be formed and be connected with back-moving spring 1213 is stretched, to be applied when it is by thrust to back-moving spring 1213
Plus uniform pressure.
Preferably, the back-moving spring 1213 and the backing plate 12122 weld together.
Further, the power output shaft 100 is respectively provided with anti-stop along inside and outside the panel 210 of support body 200
First Skidproof structure 130, second Skidproof structure 140 of the power output shaft 100 along the activity of its axial direction.First Skidproof structure
130th, the second Skidproof structure 140 is used to further prevent power output shaft 100 from sliding along the direction of power output shaft 100, to protect
The stability that card power output shaft 100 is connected with main drive gear 2000, so as to ensure the accuracy of power transmission.
Preferably, first Skidproof structure 130 is included along the inner surface setting of panel 210 in the power output shaft 100
On spacing preiection 131.Preferably, the spacing preiection 131 is ring-like.
Further, correspondence resigning hole 211 is additionally provided with fixed column 220 in the inner side of panel 210 on the support body 200, should
Fixed column 220 is used to fix the power output shaft 100, and first Skidproof structure 130 sets and is stuck in the fixed column 220,
To prevent the power output shaft 100 from axially rocking.
Preferably, second Skidproof structure 140 includes being located on the power output shaft along the appearance face ring of panel 210
Neck 141 and the jump ring 142 being embedded in the neck 141.
In another embodiment, the jump ring 142 is substituted by internal tooth back-up ring.
Specifically, with reference to Fig. 1, Fig. 6, the support body 200 is also included in multiple mounting rings 230 that the inner side of panel 210 is set,
For realizing that support body 200 is snapped connection with main drive gear 2000 by the mounting ring 230, so as to facilitate the multichannel driver
The assembling of structure 1000 and main drive gear 2000.
Fig. 5-7 are refer to, for ease of describing the operation principle of multichannel transmission mechanism 1000 of the present utility model, this practicality is new
Type shows the embodiment that a kind of active drive mechanism is used cooperatively with the multichannel transmission mechanism 1000 in the utility model.Its
In, the driving tooth that active drive mechanism 2000 includes motor 2002, is connected and driven by motor 2002 with motor output shaft 2003
Wheel 2004, the driven gear 2005 engaged with driving gear 2004, the protection driving gear 2004 and driven gear 2005 are simultaneously
It is provided with the gear mounting bracket 2006 of the tooth engaged with the driven gear 2005, promotes the driven gear 2005 so that driven
Push rod 2007 that gear 2005 and the power output shaft 100 are connected, for providing along the axial thrust of motor output shaft 2003
Electromagnetic clutch 2008 and it is electrically connected with the electromagnetic clutch 2008 and motor 2002 and for controlling electromagnetic clutch
2008 and the control circuit 2009 of motor 2002.
Preferably, the power output shaft 100 is provided with the six roots of sensation, and it is centrosymmetric point around the center of motor output shaft 2003
Cloth.In other embodiments, the power output shaft 100 can also show tool according to other regular arrays in such as Fig. 1, Fig. 5
There is the embodiment of two power output shafts 100.
In the present embodiment, selection, the switching of power output shaft 100 pass through default control journey in main drive gear 2000
Sequence is in particular in that controlling driven gear 2005 to turn to after specific location makes it perform axial movement to control, so that with
A power output shaft 100 in this direction is docked.In other embodiment of the present utility model, different dynamic output shaft 100
Drive position also available sensors realize identification.
Main drive gear 2000 based on above example, operation principle of the present utility model is:
When needing to switch to a certain transmission of power output shaft 100, first, control circuit 2009 is given birth to according to the instruction of user
The step number that is rotated into motor 2002 simultaneously starts motor 2002, and motor output shaft 2003 rotates to drive driving gear 2004 synchronous
Rotation, the driving driven gear 2005 of driving gear 2004 rotates certain angle to the driven gear 2005 and power to be driven
When output shaft 100 is aligned, driving gear 2004 stops operating.Then, control circuit 2009 control electromagnetic clutch 2008 is powered,
Electromagnetic clutch 2008 drives push rod 2007 along the axially outward movement of motor output shaft 2003, so that driven gear 2005 is promoted,
Driven gear 2005 is axially moved under the thrust of push rod 2007 along motor output shaft 2003 to first end 110, and set is opened on top
The locking cap 1212 of reset locking unit 121 on power output shaft 100, while by above-mentioned feather key structure 3000 with moving
The fit of power output shaft 100 is connected.
When carrying out phase shift transmission, control circuit 2009 sends the chip that related command is given to motor 2002, motor
Output shaft 2003 is rotated, and the torque that motor 2002 is exported is output to the power output shaft 100 connected through driven gear 2005
On, so as to realize the phase shift transmission to phase shifter.
When switching power output shaft 100, the magnetic valve of the control control electromagnetic clutch 2008 of circuit 2009 is opened, effect
Thrust decay on driven gear 2005, the locking and back-moving spring 1213 being arranged on power output shaft 100 is upspring
Cap 1212, while resetting driven gear 2005, motor output shaft 2003 rotates again, drives driven gear 2005 to select next
Power output shaft 100 to be driven.
In addition, the utility model additionally provides a kind of antenna, it includes many secondary angle of declination adjusting meanss and above-mentioned multichannel is passed
Motivation structure 1000.The antenna is as a result of above-mentioned multichannel transmission mechanism, and it is only with a motor 2002 and a control electricity
Road 2009, with miniaturization the characteristics of.
Described above is only some embodiments of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.