CN209461617U - A kind of filter frequencies regulating device - Google Patents
A kind of filter frequencies regulating device Download PDFInfo
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- CN209461617U CN209461617U CN201822143843.3U CN201822143843U CN209461617U CN 209461617 U CN209461617 U CN 209461617U CN 201822143843 U CN201822143843 U CN 201822143843U CN 209461617 U CN209461617 U CN 209461617U
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Abstract
The embodiment of the present application provides a kind of filter frequencies regulating device, is related to filter frequencies regulation technology field, can be realized the automatic adjustment of the frequency filtering range of filter, while composed structure is less, compact-sized, occupied space is smaller.The filter frequencies regulating device includes rotary drive, deceleration device, tuning screw and position limiting structure；Deceleration device has rotary input and rotary output, rotary drive is fixedly connected with rotary input, tuning screw is combined on rotary output, and the central axes of tuning screw are conllinear with the rotation axis of rotary output, position limiting structure allows tuning screw to move along the extending direction of the rotation axis of rotary output for preventing tuning screw from rotating with rotary output.Filter frequencies regulating device provided by the embodiments of the present application is used for microwave communication system.
Description
Technical field
This application involves filter frequencies regulation technology field more particularly to a kind of filter frequencies regulating devices.
Background technique
Filter is a kind of microwave device for limiting base station operation frequency range.As shown in Figure 1, common filter has cavity
01, signal input part 02, signal output end (not shown) and lid 03, signal input part 02 and signal output end are connected to
On cavity 01, exported after the filter filtering by the signal output end by the signal that the signal input part 02 inputs, lid
03 is fastened on the cavity 01, has multiple resonant column (not shown)s being arranged side by side in cavity 01, wears on lid 03
Have that multiple tuning screws 04, coupling of multiple tuning screws 04 respectively with multiple resonant columns are determined correspondingly with multiple resonant columns
Determine the frequency filtering range of the filter, multiple nuts 05 are further fixed on lid 03, multiple tuning screws 04 correspond rotation
Together in multiple nuts 05, multiple tuning screws 04 are rotated in this way, passing through, thus it is possible to vary multiple tuning screws 04 and multiple resonance
Spacing between column, so as to adjust the frequency filtering range of the filter.
Filter shown in FIG. 1 rotates multiple tuning screws 04 respectively manually to drive multiple tuning screw
04 moves along its axis, and to realize the adjusting of the frequency filtering range of filter, this operation is taken a long time, and complexity is higher, and
Precision is lower.In order to solve this problem, 04 edge of tuning screw can be driven using filter frequencies regulating device shown in Fig. 2
It is moved axially, to realize the automatic adjustment of the frequency filtering range of filter.As shown in Fig. 2, the filter frequencies adjust dress
It sets including fixed plate 001, rotation drive device 002, screw rod 003, support plate 004 and guiding slide bar 005, rotation drive device
002 is fixed in fixed plate 001, and screw rod 003 is connect with rotation drive device 002, and rotation drive device 002 is for driving screw rod
003 rotates, and is connected with nut 0041 in support plate 004, and screw rod 003 is combined in the nut 0041, is oriented to slide bar 005 and screw rod
003 is arranged in parallel, and guiding slide bar 005 and fixed plate 001 are relatively fixed, and pilot hole is additionally provided in support plate 004, is oriented to slide bar
005 is snug fit in the pilot hole.Wherein, rotation drive device 002 includes motor 0021 and connect with the motor 0021
Retarder 0022.In this way, rotation drive device 002 when driving screw rod 003 to rotate, is being oriented to slide bar 005 and pilot hole
Under cooperation guiding and position-limiting action, support plate 004 can be driven along the axial movement of screw rod 003, if by the tuning spiral shell on filter
Nail is fixed in support plate 004, and keeps the axial direction of the tuning screw parallel with the moving direction of support plate 004, then can drive tune
Humorous screw along its own axial movement, so as to realize filter frequency filtering range adjusting.But filter shown in Fig. 2
The composed structure of wave device frequency regulation arrangement is more, and structure is not compact, and occupied space is larger.
Utility model content
Embodiments herein provides a kind of filter frequencies regulating device, can be realized the frequency filtering range of filter
Automatic adjustment, while composed structure is less, compact-sized, occupied space is smaller.
In order to achieve the above objectives, the application provides a kind of filter frequencies regulating device, including rotary drive, deceleration dress
It sets, tuning screw and position limiting structure；Deceleration device has rotary input and rotary output, and rotary drive and rotation input
End is fixedly connected, and tuning screw is combined on rotary output, and the rotation axis of the central axes of tuning screw and rotary output
Collinearly, position limiting structure allows tuning screw along rotary output for preventing tuning screw from rotating with rotary output
The extending direction of rotation axis is mobile.
Filter frequencies regulating device provided by the embodiments of the present application, rotary drive at runtime, can drive deceleration to fill
Output turning moment is set, since tuning screw is combined on rotary output, the central axes of tuning screw and the rotation of rotary output
Shaft axis is conllinear, and position limiting structure can prevent tuning screw from rotating with rotary output, allows tuning screw along rotation
The extending direction of the rotation axis of output end is mobile, and therefore, under the position-limiting action of position limiting structure, tuning screw is in deceleration device
Drive under can be along itself axial movement, thus, it is possible to realize the automatic adjustment of the frequency filtering range of filter.With it is existing
Technology is compared, and filter frequencies regulating device provided by the embodiments of the present application eliminates the intermediate structures such as screw rod and support plate, because
This composed structure is less, more compact structure, and occupied space is smaller.
Optionally, deceleration device have multiple rotary outputs, tuning screw be it is multiple, position limiting structure be it is multiple；It is multiple
Tuning screw and multiple rotary outputs correspond, and multiple position limiting structures and multiple tuning screws correspond；Each tuning
Screw is combined on the corresponding rotary output of the tuning screw, and each position limiting structure is for preventing the corresponding tuning of the position limiting structure
Screw is rotated with the corresponding rotary output of the tuning screw, allows the corresponding tuning screw of the position limiting structure along the tuning
The extending direction of the rotation axis of the corresponding rotary output of screw is mobile.In this way, multiple tuning screw edges can be driven simultaneously
Itself axial movement adjusts efficiency so as to improve the frequency of filter.
Optionally, deceleration device is gear reduction unit.Gear reduction unit be common deceleration device, and transmission accuracy compared with
Height, smooth running, low noise is compact-sized, long service life, and bearing capacity is high.
In some embodiments, gear reduction unit is primary gear speed reducing machine.It is exemplary, when primary gear speed reducing machine has
When multiple rotary outputs, which includes driving gear and multiple driven gears, and multiple driven gears surround
Driving gear setting, and driving gear and multiple driven gears engaged transmission；Rotary drive is fixedly connected with driving gear, more
A tuning screw one-to-one correspondence is combined on multiple driven gears.The composed structure of primary gear speed reducing machine is simple, and cost is relatively low.
In further embodiments, gear reduction unit is second gear reduction unit.It is exemplary, when second gear reduction unit has
When having multiple rotary outputs, which includes driving gear, at least one intermediate gear and multiple driven tooths
Wheel, at least one intermediate gear are arranged around driving gear, and driving gear and at least one intermediate gear engaged transmission, multiple
Driven gear is arranged around at least one intermediate gear, and at least one intermediate gear and multiple driven gears engaged transmission, rotation
Turn actuator to be fixedly connected with driving gear, multiple tuning screw one-to-one correspondence are combined on multiple driven gears.Secondary gear
Speed reducer can realize that double reduction, slowing effect are more excellent.
Optionally, deceleration device is belt speed reducer.The structure of belt speed reducer is simple, easy to accomplish.
In some embodiments, belt speed reducer is level-one belt speed reducer.It is exemplary, when level-one belt speed reducer has
When multiple rotary outputs, level-one belt speed reducer includes that drive pulley, multiple driven pulleies and belt, belt are set around
Outside drive pulley and multiple driven pulleies；Rotary drive is fixedly connected with drive pulley, and multiple tuning screws are one by one
Correspondence is combined on multiple driven pulleies.The composed structure of level-one belt speed reducer is simple, and cost is relatively low.
In further embodiments, belt speed reducer is second belt speed reducer.Second belt speed reducer can realize two-stage
Slow down, slowing effect is more excellent.
Optionally, deceleration device is chain reduction machine.The structure of chain reduction machine is simple, easy to accomplish.
In some embodiments, chain reduction machine is level-one chain reduction machine.It is exemplary, when level-one chain reduction
When machine has multiple rotary outputs, level-one chain reduction machine includes drive sprocket, multiple driven sprockets and chain, the chain
Item is set around outside the drive sprocket and multiple driven sprockets；The rotary drive and the fixed company of the drive sprocket
It connects, multiple tuning screw one-to-one correspondence are combined on multiple driven sprockets.The composition knot of level-one chain reduction machine
Structure is simple, and cost is relatively low.
In further embodiments, chain reduction machine is two-stage chain transmission speed reducer.Two-stage chain transmission speed reducer can be real
Existing double reduction, slowing effect are more excellent.
Optionally, tuning screw includes nut and screw rod, and the side wall of nut is equipped with protrusion, and position limiting structure includes limit branch
The shell of frame, limiting bracket and filter is relatively fixed, and the position that nut is corresponded on limiting bracket is equipped with through-hole, the axis of through-hole
Line is conllinear with the central axes of tuning screw, and the side wall of through-hole is equipped with the axially extending limit sliding chutes along through-hole, and nut is sliding
It is actively tied in through-hole, protrusion is snug fit in limit sliding chutes.In this way, position limiting structure can prevent tuning screw with rotation
Output end rotation, allows tuning screw to move along the extending direction of the rotation axis of rotary output.
Optionally, rotary drive is motor.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for filter that the prior art provides；
Fig. 2 is a kind of structural schematic diagram for filter frequencies regulating device that the prior art provides；
Fig. 3 is the structural schematic diagram of the first filter frequencies regulating device provided by the embodiments of the present application；
Fig. 4 is cross section structure schematic diagram of the filter frequencies regulating device shown in Fig. 3 along A-A；
Fig. 5 is the partial enlarged view of region I in filter frequencies regulating device shown in Fig. 3；
Fig. 6 is the structural representation of deceleration device in second of filter frequencies regulating device provided by the embodiments of the present application
Figure.
Specific embodiment
In the description of the present application, term " center ", "upper", "lower", "front", "rear", "left", "right", "vertical", " water
It is flat ", "top", "bottom", "inner", the instructions such as "outside" orientation or positional relationship be to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description the application and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, and can also be that conflict connects
It connects or is integrally connected；For the ordinary skill in the art, above-mentioned term can be understood in the application with concrete condition
In concrete meaning.
The application provides a kind of filter frequencies regulating device, as shown in Fig. 3, Fig. 4 and Fig. 5, including rotary drive 1,
Deceleration device 2, tuning screw 3 and position limiting structure 4；Deceleration device 2 has rotary input and rotary output, rotary drive
1 is fixedly connected with rotary input, and tuning screw 3 is combined on rotary output, and the central axes of tuning screw 3 and rotation export
The rotation axis at end is conllinear, and position limiting structure 4 allows 3 edge of tuning screw for preventing tuning screw 3 as rotary output rotates
The rotation axis of rotary output extending direction it is mobile.
Filter frequencies regulating device provided by the embodiments of the present application, as shown in Fig. 3, Fig. 4 and Fig. 5, rotary drive 1 exists
When operation, deceleration device 2 can be driven to export turning moment, since tuning screw 3 is combined on rotary output, tuning screw 3
Central axes are conllinear with the rotation axis of rotary output, and position limiting structure 4 can prevent tuning screw 3 as rotary output revolves
Turn, allows tuning screw 3 to move along the extending direction of the rotation axis of rotary output, therefore, in the limit of position limiting structure 4
Under effect, tuning screw 3 can be along itself axial movement under the drive of deceleration device 2, and thus, it is possible to realize the filter of filter
The automatic adjustment of wave frequency range.Compared with prior art, filter frequencies regulating device provided by the embodiments of the present application is saved
The intermediate structures such as screw rod and support plate, therefore composed structure is less, more compact structure, occupied space is smaller.
Optionally, deceleration device 2 have multiple rotary outputs, tuning screw 3 be it is multiple, position limiting structure 4 be it is multiple；It is more
A tuning screw 3 is corresponded with multiple rotary outputs, and multiple position limiting structures 4 are corresponded with multiple tuning screws 3；Each
Tuning screw 3 is combined on the corresponding rotary output of tuning screw 3, and each position limiting structure 4 is for preventing the position limiting structure 4 right
The tuning screw 3 answered is rotated with the corresponding rotary output of tuning screw 3, allows the corresponding tuning spiral shell of position limiting structure 4
Nail 3 is moved along the extending direction of the rotation axis of the corresponding rotary output of tuning screw 3.In this way, can drive simultaneously
Multiple tuning screws 3 are moved axially along itself, adjust efficiency so as to improve the frequency of filter.
In the above-described embodiments, deceleration device 2 can have 2,4 or 6 rotary outputs, not do specific limit herein
It is fixed.Exemplary, as shown in Fig. 3, Fig. 4 and Fig. 5, deceleration device 2 has 6 rotary outputs.Correspondingly, the number of tuning screw 3
Amount can be 2,4 or 6, be not specifically limited herein.It is exemplary, as shown in Fig. 3, Fig. 4 and Fig. 5, tuning screw 3
Quantity is 6.Correspondingly, the quantity of position limiting structure 4 can be 2,4 or 6, it is not specifically limited herein.It is exemplary,
As shown in Fig. 3, Fig. 4 and Fig. 5, the quantity of position limiting structure 4 is 6.
Optionally, as shown in Fig. 3 or Fig. 6, deceleration device 2 is gear reduction unit.Gear reduction unit is the common dress that slows down
It sets, and transmission accuracy is higher, smooth running, low noise is compact-sized, long service life, and bearing capacity is high.
In some embodiments, gear reduction unit is primary gear speed reducing machine.It is exemplary, when primary gear speed reducing machine has
When multiple rotary outputs, as shown in figure 3, the primary gear speed reducing machine includes driving gear 21 and multiple driven gears 22, it is more
A wheel of driven tooth 22 is arranged around driving gear 21, and 22 engaged transmission of driving gear 21 and multiple driven gears；Rotation driving
Part 1 is fixedly connected with driving gear 21, and multiple one-to-one correspondence of tuning screw 3 are combined on multiple driven gears 22.One-stage gear
The composed structure of speed reducer is simple, and cost is relatively low.
In some embodiments, gear reduction unit is second gear reduction unit.It is exemplary, as shown in fig. 6, working as secondary gear
When speed reducer has multiple rotary outputs, which includes driving gear 21, at least one intermediate gear 23
With multiple driven gears 22, at least one intermediate gear 23 around driving gear 21 be arranged, and driving gear 21 and at least one
23 engaged transmission of intermediate gear, multiple driven gears 22 are arranged around at least one intermediate gear 23, and at least one center tooth
Wheel 23 is fixedly connected with multiple 22 engaged transmissions of driven gear, rotary drive with driving gear 21, and multiple tuning screws 3 are one by one
Correspondence is combined on multiple driven gears 22.Second gear reduction unit can realize that double reduction, slowing effect are more excellent.
In the examples described above, the quantity of intermediate gear 23 can be 1,2,3 etc., be not specifically limited herein.
In some embodiments, as shown in fig. 6, the quantity of intermediate gear 23 is 3.
In some embodiments, gear reduction unit is the gear reduction unit of three-level or three-level or more.It is more than three-level or three-level
Gear reduction unit can realize the deceleration of three-level or three-level or more, slowing effect is more excellent.
Optionally, deceleration device is belt speed reducer.The structure of belt speed reducer is simple, easy to accomplish.
In some embodiments, belt speed reducer is level-one belt speed reducer.It is exemplary, when level-one belt speed reducer has
When multiple rotary outputs, level-one belt speed reducer includes that drive pulley, multiple driven pulleies and belt, belt are set around
Outside drive pulley and multiple driven pulleies；Rotary drive is fixedly connected with drive pulley, and multiple tuning screws are one by one
Correspondence is combined on multiple driven pulleies.The composed structure of level-one belt speed reducer is simple, and cost is relatively low.
In some embodiments, belt speed reducer is second belt speed reducer.Second belt speed reducer can realize that two-stage subtracts
Speed, slowing effect are more excellent.
In some embodiments, belt speed reducer is the belt speed reducer of three-level or three-level or more.It is more than three-level or three-level
Belt speed reducer can realize the deceleration of three-level or three-level or more, slowing effect is more excellent.
Optionally, deceleration device is chain reduction machine.The structure of chain reduction machine is simple, easy to accomplish.
In some embodiments, chain reduction machine is level-one chain reduction machine.It is exemplary, when level-one chain reduction
When machine has multiple rotary outputs, level-one chain reduction machine includes drive sprocket, multiple driven sprockets and chain, the chain
Item is set around outside the drive sprocket and multiple driven sprockets；The rotary drive and the fixed company of the drive sprocket
It connects, multiple tuning screw one-to-one correspondence are combined on multiple driven sprockets.The composition knot of level-one chain reduction machine
Structure is simple, and cost is relatively low.
In some embodiments, chain reduction machine is two-stage chain transmission speed reducer.Two-stage chain transmission speed reducer can be realized
Double reduction, slowing effect are more excellent.
In some embodiments, chain reduction machine is the chain reduction machine of three-level or three-level or more.Three-level or three-level
Above chain reduction machine can realize the deceleration of three-level or three-level or more, and slowing effect is more excellent.
Optionally, as shown in Fig. 3, Fig. 4 and Fig. 5, tuning screw 3 includes nut 31 and screw rod 32, on the side wall of nut 31
Equipped with protrusion 33, position limiting structure 4 includes limiting bracket 41, and limiting bracket 41 and the shell of filter are relatively fixed, limiting bracket
The position that nut 31 is corresponded on 41 is equipped with through-hole 42, and the central axes of through-hole 42 are conllinear with the central axes of tuning screw 3, through-hole 42
Side wall is equipped with the axially extending limit sliding chutes 43 along through-hole 42, and nut 31 is snug fit in through-hole 42, and protrusion 33 is sliding
It is actively tied in limit sliding chutes 43.In this way, position limiting structure 4 can prevent tuning screw 3 as rotary output rotates, allow to adjust
Humorous screw 3 is moved along the extending direction of the rotation axis of rotary output.
In the above-described embodiments, the structure type of limiting bracket 41 can there are many, be not specifically limited herein.Some
In embodiment, as shown in Fig. 3, Fig. 4 and Fig. 5, when position limiting structure 4 is multiple, the limiting brackets 41 of multiple position limiting structures 4 can be with
It is fabricated to an entirety, it is possible thereby to reduce the composed structure quantity of filter frequencies regulating device, reduces structure complexity.
Optionally, rotary drive 1 is motor, and motor is common rotary drive, easy to accomplish.
Specifically, rotary drive 1 can be direct current generator, or synchronous motor can also be asynchronous machine,
This is not specifically limited.
In the description of this specification, particular features, structures, materials, or characteristics can be real in any one or more
Applying can be combined in any suitable manner in example or example.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although
The application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of filter frequencies regulating device, which is characterized in that including rotary drive, deceleration device, tuning screw and limit
Bit architecture；
The deceleration device has rotary input and rotary output, and the rotary drive is fixed with the rotary input
Connection, the tuning screw are combined on the rotary output, and the central axes of the tuning screw and the rotary output
Rotation axis it is conllinear, the position limiting structure is for preventing the tuning screw from rotate with the rotary output, permission institute
Tuning screw is stated to move along the extending direction of the rotation axis of the rotary output.
2. filter frequencies regulating device according to claim 1, which is characterized in that the deceleration device has multiple rotations
Transfer outlet, the tuning screw be it is multiple, the position limiting structure is multiple；
Multiple tuning screws and multiple rotary outputs correspond, multiple position limiting structures and multiple tune
Humorous screw corresponds；
Each tuning screw is combined on the corresponding rotary output of the tuning screw, and each position limiting structure is used
In the corresponding tuning screw of the prevention position limiting structure as the corresponding rotary output of the tuning screw rotates,
Allow the corresponding tuning screw of the position limiting structure along the rotation of the corresponding rotary output of the tuning screw
The extending direction of axis is mobile.
3. filter frequencies regulating device according to claim 1 or 2, which is characterized in that the deceleration device is gear
Speed reducer.
4. filter frequencies regulating device according to claim 3, which is characterized in that the gear reduction unit is level-one tooth
Take turns speed reducer.
5. filter frequencies regulating device according to claim 3, which is characterized in that the gear reduction unit is secondary gear
Take turns speed reducer.
6. filter frequencies regulating device according to claim 1 or 2, which is characterized in that the deceleration device is belt
Speed reducer.
7. filter frequencies regulating device according to claim 1 or 2, which is characterized in that the deceleration device is chain biography
Dynamic speed reducer.
8. filter frequencies regulating device according to claim 1 or 2, which is characterized in that the tuning screw includes spiral shell
The side wall of cap and screw rod, the nut is equipped with protrusion, and the position limiting structure includes limiting bracket, the limiting bracket and filtering
The shell of device is relatively fixed, corresponded on the limiting bracket nut position be equipped with through-hole, the central axes of the through-hole with
The central axes of the tuning screw are conllinear, and the side wall of the through-hole is equipped with sliding along the axially extending limit of the through-hole
Slot, the nut are snug fit in the through-hole, and the protrusion is snug fit in the limit sliding chutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143843.3U CN209461617U (en) | 2018-12-19 | 2018-12-19 | A kind of filter frequencies regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143843.3U CN209461617U (en) | 2018-12-19 | 2018-12-19 | A kind of filter frequencies regulating device |
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| CN209461617U true CN209461617U (en) | 2019-10-01 |
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| CN201822143843.3U Active CN209461617U (en) | 2018-12-19 | 2018-12-19 | A kind of filter frequencies regulating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346209A (en) * | 2021-05-10 | 2021-09-03 | 武汉凡谷电子技术股份有限公司 | Filter for realizing frequency modulation by gear transmission structure |
| CN117712655A (en) * | 2024-02-05 | 2024-03-15 | 成都宇恒博电子科技有限公司 | Filter with coupling adjustment mechanism |
-
2018
- 2018-12-19 CN CN201822143843.3U patent/CN209461617U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346209A (en) * | 2021-05-10 | 2021-09-03 | 武汉凡谷电子技术股份有限公司 | Filter for realizing frequency modulation by gear transmission structure |
| CN113346209B (en) * | 2021-05-10 | 2022-08-09 | 武汉凡谷电子技术股份有限公司 | Filter for realizing frequency modulation by gear transmission structure |
| CN117712655A (en) * | 2024-02-05 | 2024-03-15 | 成都宇恒博电子科技有限公司 | Filter with coupling adjustment mechanism |
| CN117712655B (en) * | 2024-02-05 | 2024-04-26 | 成都宇恒博电子科技有限公司 | Filter with coupling adjustment mechanism |
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