CN210218000U - Hall switch rotating speed monitoring protection device - Google Patents
Hall switch rotating speed monitoring protection device Download PDFInfo
- Publication number
- CN210218000U CN210218000U CN201921380979.4U CN201921380979U CN210218000U CN 210218000 U CN210218000 U CN 210218000U CN 201921380979 U CN201921380979 U CN 201921380979U CN 210218000 U CN210218000 U CN 210218000U
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- Prior art keywords
- disc
- hall switch
- control box
- block
- speed monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 230000005484 gravity Effects 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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Abstract
The utility model discloses a hall switch rotational speed monitoring protection device, including the hall switch body, the hall switch body outside is connected with the disc, and installs in the disc outside and become the oar control box, be connected with fixed establishment between disc and the hall switch body, and fixed establishment one side installs the metal connecting rod. The utility model discloses in, under coupling mechanism's effect, the connecting block of connecting through the telescopic link can stretch out and draw back along with the telescopic link, then be convenient for the disc is connected with the not equidimension becomes oar control box of change, when needs become oar control box to its disc with it and fix, can adjust the position of connecting through three telescopic link, later can become to carry out the locking screw between the oar control box through the connecting block that the telescopic link is connected with it, make the disc with it effectively connect between the oar control box, it rotates along with self wheel hub who connects to become the oar control box when, then make and become oar control box and drive the disc and rotate through the bearing of connecting.
Description
Technical Field
The utility model relates to a hall switch rotational speed monitoring protection technical field especially relates to hall switch rotational speed monitoring protection device.
Background
The rotational speed measuring sensors based on the overspeed protection system of the current wind generating set are all arranged in a nacelle and are mainly arranged on a slip ring, a generator, a wind wheel locking disc and a gearbox high-speed shaft. The main control of the fan acquires signals of a rotating speed sensor in the engine room, then generates a control command, and sends the control command to a variable pitch system in a variable pitch control box through a slip ring to control the windward angle of blades so as to adjust the rotating speed of the fan.
The existing Hall switch rotating speed monitoring and protecting device does not have a mechanism which is effectively connected with a variable pitch control box, a mechanism which is used for fixing a Hall switch and a disc of the Hall switch, and a mechanism which is used for protecting and ventilating a bearing.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving current hall switch rotational speed monitoring protection device and not possessing and become the mechanism that carries out effective connection between the oar control box, do not possess the mechanism of going on fixing between hall switch and its disc moreover to do not possess the shortcoming of protecting ventilative mechanism to the bearing, and the hall switch rotational speed monitoring protection device who proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
hall switch rotational speed monitoring protection device, including the Hall switch body, the Hall switch body outside is connected with the disc, and installs in the disc outside and becomes the oar control box, be connected with fixed establishment between disc and the Hall switch body, and fixed establishment one side installs the metal connecting rod, the metal connecting rod bottom is connected with the gravity hammer, and the metal connecting rod outside is connected with the bearing, install coupling mechanism between disc and the change oar control box, and the disc inboard has seted up protection machanism.
As a further description of the above technical solution:
the fixing mechanism is internally provided with a fixing block, an inner hole is formed in the inner side of the fixing block, the outer side of the fixing block is connected with an n-type connecting block, a round opening is formed in the inner side of the n-type connecting block, and a first screw is connected between the inner hole and the inner hole.
As a further description of the above technical solution:
the fixed block forms a fixed structure with the Hall switch body through an inner hole, a round opening, the n-type connecting block, and the fixed block is fixedly connected with the disc.
As a further description of the above technical solution:
the connecting mechanism is internally provided with a telescopic rod, the outer side of the telescopic rod is connected with a connecting block, and the inner side of the connecting block is in threaded connection with a second screw.
As a further description of the above technical solution:
the telescopic link passes through telescopic link, second screw and becomes oar control box constitution locking structure, and the telescopic link equidistance is provided with three groups.
As a further description of the above technical solution:
the protection mechanism is internally provided with a sliding groove, the sliding groove is internally and slidably connected with a sliding block, the outer side of the sliding block is connected with an external cover body, and the inner side of the external cover body is provided with a breathable net.
As a further description of the above technical solution:
the external cover body forms a rotating structure through the sliding groove, the sliding block and the disc, and the central axis of the external cover body coincides with the central axis of the bearing.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, under fixed establishment's effect, cup joint n type connecting block on through the fixed block, thereby make the hole of fixed block and the round mouth of n type connecting block dock mutually, then can insert the screw and to its screw locking bolt in round mouth and the interior hole after the butt joint, thereby realize fixing between hall switch body and the disc thereof, thereby guarantee that hall switch body is along with disc pivoted is fit for, guarantee that hall switch body is difficult for the pine to fall, then realize detecting protection work to its fan.
2. In the utility model, under the action of the connecting mechanism, the connecting block connected by the telescopic rod can extend and retract along with the telescopic rod, so that the disc can be conveniently connected with the variable-pitch control boxes with different sizes, when the disc is required to be fixed with the variable-pitch control box, the connecting position can be adjusted by the three telescopic rods, then the locking screw can be arranged between the connecting block connected by the telescopic rod and the variable-pitch control box, so that the disc is effectively connected with the variable-pitch control box, when the variable-pitch control box rotates along with the hub connected with the variable-pitch control box, the variable-pitch control box drives the disc to rotate through the connected bearing, and the metal connecting rod and the gravity hammer connected in the inner ring of the bearing are always kept vertically downwards due to the gravity effect of the gravity, in the rotating process, when the Hall switch on the disc is close to the metal connecting, a pulse signal is generated, and the monitoring work of the rotating speed of the hub is realized through the rotating speed of the hub calculated by the Hall switch pulse signal.
3. The utility model discloses in, under protection machanism's effect, when the change oar control box that connects along with wheel hub through the disc rotates, the disc passes through under the effect of spout and slider and rotates between the external cover body, thereby the spout is seted up on the disc, the slider is connected on the external cover body, because metal connecting rod runs through the lateral wall of the external cover body, so the external cover body is with metal connecting rod, the gravity hammer keeps motionless equally, then the disc passes through the spout and forms the rotation between the external cover body that the slider is connected with it, and the internal portion of external cover has been seted up ventilative net and has effectively carried out dustproof ventilative work to its bearing, prevent the long-time contact dust of bearing, lead to bearing pivoted precision to reduce, thereby it rotates through the bearing to influence the disc, direct influence hall switch monitors protection work to it.
Drawings
Fig. 1 is a schematic view of the overall structure of the hall switch rotational speed monitoring and protecting device of the present invention;
FIG. 2 is a schematic structural view of the middle fixing mechanism of the present invention;
FIG. 3 is an enlarged schematic view of the position A of the present invention;
fig. 4 is an enlarged schematic structural diagram of the middle B of the present invention.
Illustration of the drawings:
1. a Hall switch body; 2. a disc; 3. a variable pitch control box; 4. a fixing mechanism; 401. a fixed block; 402. an inner bore; 403. an n-type connecting block; 404. a round mouth; 405. a first screw; 5. a metal connecting rod; 6. a gravity hammer; 7. a connecting mechanism; 701. a telescopic rod; 702. connecting blocks; 703. a second screw; 8. a protection mechanism; 801. a chute; 802. a slider; 803. is externally connected with a cover body; 804. a breathable net; 9. and a bearing.
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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-4, the hall switch rotational speed monitoring and protecting device comprises a hall switch body 1, a disc 2, a variable pitch control box 3, a fixing mechanism 4, a fixing block 401, an inner hole 402, an n-shaped connecting block 403, a round mouth 404, a first screw 405, a metal connecting rod 5, a gravity hammer 6, a connecting mechanism 7, a telescopic rod 701, a connecting block 702, a second screw 703, a protecting mechanism 8, a sliding chute 801, a sliding block 802, an external cover body 803, a ventilation net 804 and a bearing 9, wherein the disc 2 is connected to the outer side of the hall switch body 1, the variable pitch control box 3 is installed on the outer side of the disc 2, the fixing mechanism 4 is connected between the disc 2 and the hall switch body 1, the metal connecting rod 5 is installed on one side of the fixing mechanism 4, a hub connected with the variable pitch control box 3 is kept relatively stationary, the disc 2 is driven to rotate together when the hub rotates, and the metal connecting rod 5 and, the bottom end of the metal connecting rod 5 is connected with a gravity hammer 6, the outer side of the metal connecting rod 5 is connected with a bearing 9, the inner ring rotating shaft of the bearing 9 is connected with the gravity hammer 6 through the metal connecting rod 5, a connecting mechanism 7 is arranged between the disc 2 and the variable pitch control box 3, the inner side of the disc 2 is provided with a protection mechanism 8,
further, the fixing mechanism 4 comprises a fixing block 401 inside, an inner hole 402 is formed in the inner side of the fixing block 401, the outer side of the fixing block 401 is connected with an n-shaped connecting block 403, a round opening 404 is formed in the inner side of the n-shaped connecting block 403, a first screw 405 is connected between the inner hole 402 and the inner hole 402, the fixing block 401 is fixedly connected with the variable pitch control box 3, and the n-shaped connecting block 403 is fixedly connected with the hall switch body 1.
Further, the fixing block 401 forms a fixing structure with the hall switch body 1 through the inner hole 402, the round opening 404, the n-type connecting block 403, the fixing block 401 is fixedly connected with the disc 2, the n-type connecting block 403 is sleeved on the fixing block 401, so that the inner hole 402 of the fixing block 401 is butted with the round opening 404 of the n-type connecting block 403, and a first screw 405 can be inserted into the butted round opening 404 and the inner hole 402, and a bolt can be locked by the first screw 405.
Further, the connecting mechanism 7 comprises an expansion rod 701 inside, the outer side of the expansion rod 701 is connected with a connecting block 702, the inner side of the connecting block 702 is in threaded connection with a second screw 703, the connecting block 702 can stretch along with the expansion rod 701, and the disc 2 can be conveniently connected with the variable pitch control box 3 with different sizes.
Further, the telescopic rods 701 and the pitch control box 3 form a locking structure through the telescopic rods 701 and the second screws 703, three groups of telescopic rods 701 are arranged at equal intervals, the three telescopic rods 701 are adjusted to be connected, and then the second screws 703 can be locked between the connecting blocks 702 connected with the telescopic rods 701 and the pitch control box 3.
Further, the inside spout 801 that is included of protection machanism 8, and the inside sliding connection of spout 801 has slider 802, and the slider 802 outside is connected with external cover body 803, and the inboard ventilative net 804 of installing of external cover body 803, and ventilative net 804 effectively carries out dustproof ventilative work to its bearing 9, prevents that bearing 9 from contacting the dust for a long time, leads to bearing 9 pivoted precision to reduce.
Furthermore, the external cover body 803 forms a rotating structure with the disc 2 through the sliding groove 801, the sliding block 802, and the central axis of the external cover body 803 coincides with the central axis of the bearing 9, and the disc 2 rotates between the external cover bodies 803 connected with the sliding block 802 through the sliding groove 801.
The working principle is as follows: when the device is used, the disc 2 and the variable-pitch control box 3 connected with the hub can be connected through the connecting mechanism 7, in the process, the connecting position can be adjusted through the three telescopic rods 701, then the second screw 703 can be locked between the connecting block 702 connected with the telescopic rods 701 and the variable-pitch control box 3, so that the disc 2 and the variable-pitch control box 3 are effectively connected, when the variable-pitch control box 3 rotates along with the hub connected with the variable-pitch control box, the variable-pitch control box 3 drives the disc 2 to rotate through the connected bearing 9, the metal connecting rod 5 and the gravity hammer 6 connected in the inner ring of the bearing 9 are always kept vertically downwards due to the gravity effect of the earth center, in the rotating process, when the Hall switch body 1 on the disc 2 is close to the metal connecting rod 5, a pulse signal can be generated, and the rotating speed of the hub is calculated through the Hall switch pulse signal, in the rotating process, when the Hall switch bodies 1 on the disc 2 approach the metal connecting rod 5, a pulse signal can be generated, if the disc 2 rotates continuously, a series of pulse signals can be generated when six Hall switch bodies 1 sequentially pass through the metal connecting rod 5, the time sequence pulse signals are collected by a single chip microcomputer, the rotating speed of the current hub can be calculated as long as the time interval of the pulse signals of two adjacent Hall switch bodies 1 is detected, when the rotating speed of the hub exceeds preset protection parameters, the Hall switch rotating speed monitoring and protecting device can disconnect safety chain dry contacts and input an overspeed alarm signal into a variable-pitch controller, the variable-pitch system is guaranteed to immediately execute feathering shutdown operation through the two paths of commands, and the working principle of the device is completed.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. Hall switch rotational speed monitoring protection device, including Hall switch body (1), its characterized in that, Hall switch body (1) outside is connected with disc (2), and disc (2) outside installs and becomes oar control box (3), be connected with fixed establishment (4) between disc (2) and Hall switch body (1), and fixed establishment (4) one side installs metal connecting rod (5), metal connecting rod (5) bottom is connected with gravity hammer (6), and metal connecting rod (5) outside is connected with bearing (9), install coupling mechanism (7) between disc (2) and the oar control box (3), and disc (2) inboard has seted up protection machanism (8).
2. The Hall switch rotating speed monitoring and protecting device according to claim 1, wherein the fixing mechanism (4) comprises a fixing block (401) inside, an inner hole (402) is formed in the fixing block (401), an n-shaped connecting block (403) is connected to the outer side of the fixing block (401), a round opening (404) is formed in the n-shaped connecting block (403), and a first screw (405) is connected between the inner hole (402) and the inner hole (402).
3. The Hall switch rotating speed monitoring and protecting device according to claim 2, wherein the fixed block (401) forms a fixed structure with the Hall switch body (1) through an inner hole (402), a round opening (404), the round opening (404), an n-type connecting block (403), and the fixed block (401) is fixedly connected with the disc (2).
4. The Hall switch rotating speed monitoring and protecting device according to claim 1, wherein the connecting mechanism (7) comprises an expansion link (701) inside, a connecting block (702) is connected to the outer side of the expansion link (701), and a second screw (703) is connected to the inner side of the connecting block (702) in a threaded manner.
5. The Hall switch rotating speed monitoring and protecting device according to claim 4, wherein the telescopic rod (701) forms a locking structure with the variable pitch control box (3) through the telescopic rod (701), the second screw (703), and three groups of telescopic rods (701) are arranged at equal intervals.
6. The Hall switch rotating speed monitoring and protecting device according to claim 1, wherein a sliding groove (801) is included inside the protecting mechanism (8), a sliding block (802) is connected inside the sliding groove (801) in a sliding manner, an external cover body (803) is connected to the outer side of the sliding block (802), and a ventilation net (804) is installed on the inner side of the external cover body (803).
7. The Hall switch rotating speed monitoring and protecting device according to claim 6, wherein the external cover body (803) and the disc (2) form a rotating structure through the sliding groove (801), the sliding block (802), and a central axis of the external cover body (803) coincides with a central axis of the bearing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921380979.4U CN210218000U (en) | 2019-08-23 | 2019-08-23 | Hall switch rotating speed monitoring protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921380979.4U CN210218000U (en) | 2019-08-23 | 2019-08-23 | Hall switch rotating speed monitoring protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218000U true CN210218000U (en) | 2020-03-31 |
Family
ID=69919948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921380979.4U Expired - Fee Related CN210218000U (en) | 2019-08-23 | 2019-08-23 | Hall switch rotating speed monitoring protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218000U (en) |
-
2019
- 2019-08-23 CN CN201921380979.4U patent/CN210218000U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 |