CN201673858U - Centrifugal switch - Google Patents
Centrifugal switch Download PDFInfo
- Publication number
- CN201673858U CN201673858U CN2010202080883U CN201020208088U CN201673858U CN 201673858 U CN201673858 U CN 201673858U CN 2010202080883 U CN2010202080883 U CN 2010202080883U CN 201020208088 U CN201020208088 U CN 201020208088U CN 201673858 U CN201673858 U CN 201673858U
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- China
- Prior art keywords
- centrifugal
- depression bar
- assembly
- switch
- push rod
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Abstract
The utility model discloses a centrifugal switch, which comprises a shell (1), a centrifugal component (2), a pressing bar component (3), a micro switch (4) and an electrical connector (5). The centrifugal component (2), the pressing bar component (3), the micro switch (4) and the electrical connector (5) are arranged in the shell (1), wherein the centrifugal component (2), the pressing bar component (3), and the micro switch (4) are arranged on one axial line, and the micro switch (4) is connected with the electrical connector (5). The utility model effectively solves the key technology of transforming high rotational speed to electric signals, and can be applied in the high-speed working equipment such as aircraft starters and the like to promptly and accurately transform mechanical signals with high rotational speed into electric signals. Moreover, the utility model has the advantages of reasonable, compact and novel structure and is worth market promotion.
Description
Technical field
The utility model relates to a kind of centrifugal switch that the tach signal of high-speed rotating machine can be converted to the signal of telecommunication.
Background technology
Starter for aircraft, need reach a high rotating speed ability normal starting, after arriving this working speed, continue rising again as rotating speed and then can cause damage starter, need this moment an effective device make starter after reaching working speed promptly and accurately send the signal of telecommunication, the prompting pilot closes motivation.The working speed of starter is up to more than 40,000 rpm, the electromechanical equipment of conventional tachogenerator and so on can't bear so high rotating speed, and by extensive investigation, domestic also do not have suitable device can realize this function at present, need to rely on pilot's artificial judgment, accuracy is relatively poor.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of centrifugal switch.This centrifugal switch can with the rotating speed of high-speed rotating machine promptly and accurately be converted into the signal of telecommunication, when the starter rotating speed is too high on the aircraft, can remind the pilot to close motivation automatically.
For solving the problems of the technologies described above, the technical solution of the utility model: a kind of centrifugal switch, comprise housing and be installed in housing interior centrifugal assembly, depression bar assembly, sensitive switch and electric connector, described centrifugal assembly, depression bar assembly, depression bar assembly, sensitive switch are installed on the same axis of housing, during work, centrifugal assembly acts on the depression bar assembly, and the depression bar assembly acts on sensitive switch, and sensitive switch is connected with electric connector.
In the above-mentioned centrifugal switch, described centrifugal assembly comprises gear shaft, centrifugal and push rod; Gear one end of gear shaft is meshed with starter reduction device, and axle head is locked with locking nut, on the axle bumper of gear shaft bearing is housed; In the inner chamber that centrifugal is installed in gear shaft, be contained in installation sleeve and bearing pin on centrifugal, push rod connects centrifugal, and spring is housed on push rod.
In the aforesaid centrifugal switch, described depression bar assembly comprises fixed cover, depression bar and swivel nut, is subjected to the push rod effect of centrifugal assembly during depression bar work; Swivel nut acts on the contact of sensitive switch; Between depression bar and swivel nut, little spring is housed.
In the aforesaid centrifugal switch, O type circle is housed on fixed cover; Cushion rubber and trim ring are housed on depression bar.
Design principle of the present utility model: object is made circular motion can produce the centrifugal force of rotation center direction dorsad, centrifugal force F=m ω
2R, wherein m is the object quality, and ω is an angular speed, and r is a radius of turn.Rotatablely move and be converted into centrifugal force, and centrifugal force and rotating speed are proportional, and the centrifugal force that produces in the time of then can managing to make dangerous rotating speed is converted into the action force of certain actuating type sensitive switch and equates, under dangerous rotating speed, touch sensitive switch, make rotating speed finally be converted into the signal of telecommunication.
The beneficial effects of the utility model: compared with prior art, the utility model can be converted into the signal of telecommunication accurately with the dangerous rotating speed of starter, drives to the starting interlocking relay, lights the red colored lamp of " the dangerous rotating speed of starter ", reminds the pilot to close motivation.The utility model is rational in infrastructure, compact, novel, effectively solved the key technology that high rotating speed is converted into the signal of telecommunication, it is sensitive, reliable to realize that tach signal transmission and signal transmit, structure is ingenious reliable, remove and be applied on the aircraft starter, can also extensive use on the equipment of high speed operation, be worth marketing.
Description of drawings
Fig. 1 is a complete machine structure figure of the present utility model;
Fig. 2 is the structural representation of centrifugal assembly of the present utility model;
Fig. 3 is the structural representation of depression bar assembly of the present utility model.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Embodiment
Embodiment 1.As shown in Figure 1, mainly comprise housing 1 and be installed in centrifugal assembly 2, depression bar assembly 3, sensitive switch 4 and electric connector 5 in the housing 1 that housing 1 is a structural member, all spare parts all are installed on wherein, and its profile should be considered in the starter mounting interface.Centrifugal assembly 2, depression bar assembly 3, depression bar assembly 3 and sensitive switch 4 are installed on the housing 1 same axis, during work, centrifugal assembly 2 acts on depression bar assembly 3, and depression bar assembly 3 acts on sensitive switch 4, and the contact of sensitive switch 4 is connected with two-end-point on the electric connector 5.When sensitive switch 4 triggered, inner reed change was connected circuit, sends signal.As shown in Figure 2, centrifugal assembly 2 comprises gear shaft 6, centrifugal 10 and push rod 11; Gear one end of gear shaft 6 is meshed with starter reduction device, and two bearings 7 are housed on the axle bumper of gear shaft 6; Axle bumper supports two bearings, 7 location, the stability under guaranteeing to run up.Be installed in for centrifugal 10 in the inner chamber of gear shaft 6, be contained in installation sleeve 8 and bearing pin 9 on centrifugal 10, push rod 11 connects centrifugal 10, pad one spring 12 between push rod 11 and gear shaft 6, and axle head is locked with locking nut 13.Installation sleeve 8 plays a part to support centrifugal 10 with bearing pin 9, and the radial centrifugal force on centrifugal 10 is converted to axial thrust, acts on push rod 11.Push rod 11 adopts copper product more wear-resisting and that coefficient of friction is lower to make.As shown in Figure 3, depression bar assembly 3 comprises fixed cover 14, depression bar 15 and swivel nut 16, and fixed cover 14 plays a part to support and fixing whole depression bar assembly 3, and depression bar 15 adopts steel, and carry out nitriding on the surface and handle, be subjected to push rod 11 effects of centrifugal assembly 2 during depression bar 15 work; Depression bar 15 is connected with the push rod 11 of centrifugal assembly 2, forms the minimum anti abrasive friction pair of coefficient of friction with push rod 11; Swivel nut 16 connects the contact of sensitive switch 4; For anti-throw-out lever 11 and depression bar 15 rigidity friction down at a high speed, in depression bar 15 and 16 pads of swivel nut, one little spring, 17 bufferings.O type circle 18 is housed on fixed cover 14; Cushion rubber 19 and trim ring 20 are housed on depression bar 15, and O type circle 18, cushion rubber 19 etc. are obturator, and trim ring 20 plays fixedly cushion rubber 19 and depression bar 15.
The course of work of the present utility model: as shown in Figure 1, power transmission shaft rotating speed on the starter passes on the gear shaft 6 of centrifugal switch by decelerator, be installed in for centrifugal 10 and be rotated motion on the gear shaft 6 together, and produce centrifugal force radially, fulcrum by bearing pin 9, produce axial component, when rotating speed arrived dangerous rotating speed, this active force overcame the elastic force of spring 12, promoted push rod 11, push rod 11 acts on the depression bar 15, overcome the elastic force of little spring 17, promote swivel nut 16, swivel nut 16 touches sensitive switch 4 contacts, sensitive switch 4 is connected, spread out of the signal of telecommunication to electric connector 5; After closing motivation, rotating speed descends, and centrifugal force reduces, and spring 12 elastic force promote to return to reset condition for centrifugal 10.So, form a duty cycle.
Execution mode of the present utility model is not limited to the foregoing description, all belongs within the protection range of the present utility model in the various variations of making under the prerequisite that does not break away from the utility model aim.
Claims (4)
1. centrifugal switch, comprise housing (1) and be installed in housing (1) interior centrifugal assembly (2), depression bar assembly (3), sensitive switch (4) and electric connector (5), it is characterized in that: described centrifugal assembly (2), depression bar assembly (3), depression bar assembly (3) and sensitive switch (4) are installed on the same axis of housing (1), and sensitive switch (4) is connected with electric connector (5).
2. centrifugal switch according to claim 1 is characterized in that: described centrifugal assembly (2) comprises gear shaft (6), centrifugal (10) and push rod (11); Gear one end of gear shaft (6) is meshed with starter reduction device, and axle head is equipped with bearing (7) with locking nut (13) locking on the axle bumper of gear shaft (6); Centrifugal (10) are installed in the inner chamber of gear shaft (6), are contained in installation sleeve (8) and bearing pin (9) on centrifugal (10), and push rod (11) connects centrifugal (10), and spring (12) is housed on push rod (11).
3. centrifugal switch according to claim 1 is characterized in that: described depression bar assembly (3) comprises fixed cover (14), depression bar (15) and swivel nut (16), is subjected to push rod (11) effect of centrifugal assembly (2) during depression bar (15) work; Swivel nut (16) acts on the contact of sensitive switch (4); Between depression bar (15) and swivel nut (16), little spring (17) is housed.
4. centrifugal switch according to claim 3 is characterized in that: O type circle (18) is housed on described fixed cover (14); Cushion rubber (19) and trim ring (20) are housed on depression bar (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202080883U CN201673858U (en) | 2010-05-31 | 2010-05-31 | Centrifugal switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202080883U CN201673858U (en) | 2010-05-31 | 2010-05-31 | Centrifugal switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673858U true CN201673858U (en) | 2010-12-15 |
Family
ID=43331266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202080883U Expired - Fee Related CN201673858U (en) | 2010-05-31 | 2010-05-31 | Centrifugal switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262976A (en) * | 2010-05-31 | 2011-11-30 | 中国江南航天工业集团林泉电机厂 | Centrifugal switch |
-
2010
- 2010-05-31 CN CN2010202080883U patent/CN201673858U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262976A (en) * | 2010-05-31 | 2011-11-30 | 中国江南航天工业集团林泉电机厂 | Centrifugal switch |
| CN102262976B (en) * | 2010-05-31 | 2013-10-30 | 中国江南航天工业集团林泉电机厂 | Centrifugal switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20140531 |