CN102288206A - Wheel hub position detection method and realization device - Google Patents
Wheel hub position detection method and realization device Download PDFInfo
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- CN102288206A CN102288206A CN2010102022115A CN201010202211A CN102288206A CN 102288206 A CN102288206 A CN 102288206A CN 2010102022115 A CN2010102022115 A CN 2010102022115A CN 201010202211 A CN201010202211 A CN 201010202211A CN 102288206 A CN102288206 A CN 102288206A
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Abstract
The invention relates to a wheel hub position detection method and a realization device; the device comprises a spindle and a bearing seat; more than two concave holes are uniformly distributed on the spindle; a fixed support is arranged on the bearing seat; a first proximity switch and a second proximity switch are arranged on the fixed support; and the first proximity switch and the second proximity switch are arranged corresponding to the concave holes on the spindle. When the spindle rotates, a programmable logic controller (PLC) calculates the rotating direction of the spindle through the time sequence of the first proximity switch and the second proximity switch. Consequently, the positions of three blades relative to a tower tube can be calculated. The PLC main control system enables a brake disc to brake according to a relative angle of the spindle; and when a wind wheel stops working, any blade is ensured to be in parallel with the tower tube, and the other two blades form a 120-degree angle with the tower tube relatively. According to the invention, the position of a wheel hub is relatively consistent every time when a fan shuts down, so that a wheel hub repairer can successfully enter to repair the wheel hub; and the device has a simple structure, is convenient to operate and has high reliability.
Description
Technical field
The present invention relates to technical field of wind power generation, specifically is a kind of axial fan hub method for detecting position and implement device.
Background technology
At present, known wind power generating set wind wheel when shutting down freely dallies, and the position of blade is uncertain when stopping fully, might become 60 ° with the tower tube by two blades, and another blade causes very big difficulty for the maintenance personal who enters wheel hub vertically upward.
Summary of the invention
Enter the wheel hub difficulty in order to solve the maintenance personal, after stopping, wind wheel needs manually to rotate the problem of blower fan high speed shaft, the purpose of this invention is to provide method and implement device that a kind of hub positions detects, specifically be to calculate the anglec of rotation that main shaft goes out near switch, second near the sequential of switch, determine the stop position of blade by first.
The technical solution used in the present invention is for achieving the above object: a kind of hub positions detection method, and this method comprises the steps;
The first step is determined main shaft zero point, when any blade of blower fan vertically downward the time, determines that this is the main shaft null position constantly, the PLC master control system main shaft angle that resets;
Second step, the collection of rotating signal, when the rotation of main shaft clockwise or inverse clock, first near switch and second near switch successively by shrinkage pool because first is different near the installation site of switch with second near switch, thereby it is also inequality to produce signal sequence; Clockwise when rotation first be near switch and second as shown in table 1 near the sequential of switch, and first near switch and second as shown in table 2 near the sequential of switch during the inverse clock rotation:
| First near switch | 0 | 1 | 1 | 0 | 0 |
| Second near switch | 0 | 0 | 1 | 1 | 0 |
Table 1: clockwise rotating signal
| First near switch | 0 | 0 | 1 | 1 | 0 |
| Second near switch | 0 | 1 | 1 | 0 | 0 |
Table 2: inverse clock rotating signal
Described first exports acquired signal to the PLC main control computer near switch and second near switch;
The 3rd step, the calculating of the anglec of rotation, when the main shaft clockwise rotates, this first produces a complete sequential 0 → 1 → 2 → 3 → 0 by shrinkage pool near switch and second near switch fully, and the PLC main control computer utilizes this sequential to calculate the angle of rotation again according to the shrinkage pool quantity that distributes on the main shaft.
During described main axis rotation, the PLC main control computer calculates the sense of rotation of main shaft by first near switch and second sequential near switch.
A kind of implement device of hub positions detection method comprises a main shaft and a bearing seat that rotates, and evenly is laid with plural shrinkage pool on the described main shaft; One fixed support is set on the described bearing seat, be equipped with on this fixed support first near switch and second near switch, described first near switch and second near switch and the corresponding setting of shrinkage pool on the main shaft.
Output low level signal when second enters shrinkage pool near switch and first successively near switch, output high level when second breaks away from shrinkage pool near switch and first near switch.
Described first adopts the signal measurement sensor near switch and second near switch, and this first is 0.1～6mm near switch and second near the sensitive surface of switch and the distance of reaction of main shaft plane.
Advantage of the present invention:
1, the present invention calculates the sense of rotation and the angles of main shaft by two near the sequential of switch, and judges the position of blade, and main shaft is carried out brake after revolution is reduced to certain set point, makes wherein certain blade be convenient to the staff and enter wheel hub vertically downward.
2, the present invention is simple in structure, easy to operate, the reliability height.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the present invention first is near the switch and second sequential chart near switch.
Embodiment
A kind of hub positions detection method, this method comprises the steps;
The first step is determined 1 zero point of main shaft, when any blade of blower fan vertically downward the time, determines that this is main shaft 1 null position constantly, PLC master control system main shaft 1 angle that resets;
Second step, the collection of rotating signal, when the rotation of main shaft 1 clockwise or inverse clock, first near switch 3 and second near switch 4 successively by shrinkage pool 2, because first is different near the installation site of switch 4 with second near switch 3, thereby it is also inequality to produce signal sequence; Clockwise when rotation first be near switch 3 and second as shown in table 1 near the sequential of switch 4, and first near switch 3 and second as shown in table 2 near the sequential of switch 4 during the inverse clock rotation:
| First near switch | 0 | 1 | 1 | 0 | 0 |
| Second near switch | 0 | 0 | 1 | 1 | 0 |
Table 1: clockwise rotating signal
| First near switch | 0 | 0 | 1 | 1 | 0 |
| Second near switch | 0 | 1 | 1 | 0 | 0 |
Table 2: inverse clock rotating signal
Described first exports acquired signal to the PLC main control computer near switch 3 and second near switch 4;
The 3rd step, the calculating of the anglec of rotation, when main shaft 1 clockwise rotates, this first produces a complete sequential 0 → 1 → 2 → 3 → 0 by shrinkage pool 2 near switch 3 and second near switch 4 fully, and the PLC main control computer utilizes this sequential to calculate the angle of rotation again according to shrinkage pool 2 quantity that distribute on the main shaft 1.During 1 rotation of described main shaft, the PLC main control computer calculates the sense of rotation of main shaft 1 by first near switch 3 and second sequential near switch 4.
Evenly be laid with plural shrinkage pool 2 on the described main shaft 1, one fixed support 5 is set on the described bearing seat, be equipped with on this fixed support 5 first near switch 3 and second near switch 4, described first near switch 3 and second near the shrinkage pool 2 corresponding settings on switch 4 and the main shaft 1.Described first is the left and right horizontal setting near switch 3 and second near switch 4, output low level signal when second enters shrinkage pool 2 near switch 4 and first successively near switch 3, second high level of output when breaking away from shrinkage pools 2 near switch 4 and first near switch 3.Described first adopts the signal measurement sensors near switch 3 and second near switch 4, and this first is 0.1～6mm near switch 3 and second near the sensitive surface of switch 4 and the distance of reaction on main shaft 1 plane.Described first near switch 3 and second near switch 4 select wide temperature, flush type for use, often open, plug-type is near switch, supply voltage is 24V DC.First is 0.1～6mm near the switch 3 and second induction planes and the main shaft 1 plane distance of reaction near switch 4, outputs signal to the digital data acquisition module of PLC.Of the present invention first is commercial product near switch 3 and second near switch 4, purchases in Baruch husband sensor company limited, and model is BES M18EI-PSC80B-S04G.
The point of sequential correspondence
(0.LL low, low)
(1.HL height, low)
(2.HH height, height)
(3.LH low, height)
When the blower fan manual shut-down after the wind wheel revolution is reduced to certain setting value; the PLC master control system is carried out the brake of high speed brake disc, after wind wheel stops fully according to the relative angle of main shaft 1; any one blade of three blades is parallel with the tower tube, 120 ° of the relative one-tenth with the tower tube of two other blade.Hub positions was consistent relatively when the present invention shut down blower fan at every turn, had ensured that the wheel hub maintainer can enter the wheel hub maintenance at every turn smoothly.
Claims (5)
1. hub positions detection method is characterized in that:
This method comprises the steps;
The first step is determined main shaft zero point, when any blade of blower fan vertically downward the time, determines that this is the main shaft null position constantly, the PLC master control system main shaft angle that resets;
Second step, the collection of rotating signal, when the rotation of main shaft clockwise or inverse clock, first near switch and second near switch successively by shrinkage pool because first is different near the installation site of switch with second near switch, thereby it is also inequality to produce signal sequence; Clockwise when rotation first be near switch and second as shown in table 1 near the sequential of switch, and first near switch and second as shown in table 2 near the sequential of switch during the inverse clock rotation:
Table 1: clockwise rotating signal
Table 2: inverse clock rotating signal
Described first exports acquired signal to the PLC main control computer near switch and second near switch;
The 3rd step, the calculating of the anglec of rotation, when the main shaft clockwise rotates, this first produces a complete sequential 0 → 1 → 2 → 3 → 0 by shrinkage pool near switch and second near switch fully, and the PLC main control computer utilizes this sequential to calculate the angle of rotation again according to the shrinkage pool quantity that distributes on the main shaft.
2. by the described hub positions detection method of claim 1, it is characterized in that:
During described main axis rotation, the PLC main control computer calculates the sense of rotation of main shaft by first near switch and second sequential near switch.
3. the implement device of a hub positions detection method comprises a main shaft and a bearing seat that rotates, and it is characterized in that:
Evenly be laid with plural shrinkage pool on the described main shaft;
One fixed support is set on the described bearing seat, be equipped with on this fixed support first near switch and second near switch, described first near switch and second near switch and the corresponding setting of shrinkage pool on the main shaft.
4. by the implement device of the described hub positions detection method of claim 3, it is characterized in that:
Output low level signal when second enters shrinkage pool near switch and first successively near switch, output high level when second breaks away from shrinkage pool near switch and first near switch.
5. by the implement device of the described hub positions detection method of claim 3, it is characterized in that:
Described first adopts the signal measurement sensor near switch and second near switch, and this first is 0.1～6mm near switch and second near the sensitive surface of switch and the distance of reaction of main shaft plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102022115A CN102288206A (en) | 2010-06-18 | 2010-06-18 | Wheel hub position detection method and realization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102022115A CN102288206A (en) | 2010-06-18 | 2010-06-18 | Wheel hub position detection method and realization device |
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| CN102288206A true CN102288206A (en) | 2011-12-21 |
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| CN2010102022115A Pending CN102288206A (en) | 2010-06-18 | 2010-06-18 | Wheel hub position detection method and realization device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671741A (en) * | 2012-06-08 | 2012-09-19 | 南京西普水泥工程集团有限公司 | Roller position detection device |
| CN110779489A (en) * | 2019-10-17 | 2020-02-11 | 中国航空工业集团公司洛阳电光设备研究所 | Device and method for measuring rotation state of rotating protective cover by using double sensors |
| CN110927400A (en) * | 2019-11-14 | 2020-03-27 | 鲁能新能源(集团)有限公司河北分公司 | Impeller speed measuring device and method based on inductive proximity switch |
| CN111099458A (en) * | 2020-01-08 | 2020-05-05 | 新疆农业大学 | Double-chain transmission synchronism monitoring device and double-chain transmission fault detection method of film collecting machine |
| CN114777639A (en) * | 2022-04-28 | 2022-07-22 | 安百拓（南京）建筑矿山设备有限公司 | Rotation region detection device within limited angle and steering control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671741A (en) * | 2012-06-08 | 2012-09-19 | 南京西普水泥工程集团有限公司 | Roller position detection device |
| CN102671741B (en) * | 2012-06-08 | 2014-04-16 | 南京西普水泥工程集团有限公司 | Roller position detection device |
| CN110779489A (en) * | 2019-10-17 | 2020-02-11 | 中国航空工业集团公司洛阳电光设备研究所 | Device and method for measuring rotation state of rotating protective cover by using double sensors |
| CN110779489B (en) * | 2019-10-17 | 2021-08-13 | 中国航空工业集团公司洛阳电光设备研究所 | Device and method for measuring rotation state of rotating protective cover by using double sensors |
| CN110927400A (en) * | 2019-11-14 | 2020-03-27 | 鲁能新能源(集团)有限公司河北分公司 | Impeller speed measuring device and method based on inductive proximity switch |
| CN111099458A (en) * | 2020-01-08 | 2020-05-05 | 新疆农业大学 | Double-chain transmission synchronism monitoring device and double-chain transmission fault detection method of film collecting machine |
| CN111099458B (en) * | 2020-01-08 | 2021-08-31 | 新疆农业大学 | Double-chain transmission synchronism monitoring device and double-chain transmission fault detection method of film collecting machine |
| CN114777639A (en) * | 2022-04-28 | 2022-07-22 | 安百拓（南京）建筑矿山设备有限公司 | Rotation region detection device within limited angle and steering control method |
| CN114777639B (en) * | 2022-04-28 | 2024-04-09 | 安百拓（南京）建筑矿山设备有限公司 | Rotation region detection device within limited angle and steering control method |
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Effective date of abandoning: 20111221 |
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