CN217440342U - Position sensing device convenient to control adjustable preceding guide vane of fan pivoted - Google Patents
Position sensing device convenient to control adjustable preceding guide vane of fan pivoted Download PDFInfo
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- CN217440342U CN217440342U CN202123047692.XU CN202123047692U CN217440342U CN 217440342 U CN217440342 U CN 217440342U CN 202123047692 U CN202123047692 U CN 202123047692U CN 217440342 U CN217440342 U CN 217440342U
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Abstract
The utility model relates to a position sensing device convenient for controlling the rotation of an adjustable front guide vane of a fan, which comprises a body, wherein the body comprises a proximity switch base arranged on the outer end base of a driving rotating shaft of equipment and a proximity pointer arranged on the driving rotating shaft; aiming at the requirements of small installation space and compact structure of a position control device, a certain position is selected on the outer end bases of 25 driving rotating shafts of equipment, the position can be maintained, the space for maintenance is small, the interface is complex, and the like, 3 fasteners on the equipment are used for installation and positioning, looseness prevention is realized through a double-lug stop washer, and the situation of impact, vibration and abrasion caused by direct contact of a fixing piece (a proximity switch) and a moving piece (a proximity pointer) can be avoided by adopting a limit sensor, so that the reliability and the service life of the whole set of device can be improved.
Description
Technical Field
The utility model belongs to the technical field of the adjustable preceding leaflet device stator turned angle position of control technique and specifically relates to a be convenient for control fan is adjustable preceding leaflet pivoted position induction system.
Background
The guide vane angle position control device (position control device for short) of the existing fan adjustable front guide vane device is a mechanism form that a drive-by-wire sensor is adopted to control the extension length of a piston rod of a drive oil cylinder so as to control the rotation angle of a guide vane. The general structure overall dimension of drive-by-wire sensor is great, needs to install on the hydro-cylinder through the staple bolt, and the stiff end of cable needs to be in the same place with the hydro-cylinder piston rod is fixed to realize reaching the purpose that real-time detection hydro-cylinder piston rod length variation. Therefore, the overall dimension of the position control device is large, the installation space and the space requirements for maintenance and overhaul are large, and the installation requirement on equipment is high. Meanwhile, the device is prone to position deviation and misoperation in a strong vibration environment, and errors are caused in the control of the angle and the position of the guide vane, so that improvement is needed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the above problems in the prior art, an improved position sensing device for controlling the rotation of an adjustable front guide vane of a fan is provided.
The utility model provides a technical scheme that its technical problem adopted is: a position sensing device convenient for controlling the rotation of an adjustable front guide vane of a fan comprises a body, wherein the body comprises a proximity switch base arranged on a base at the outer end of a driving rotating shaft of equipment and a proximity pointer arranged on the driving rotating shaft; aiming at the requirements of small installation space and compact structure of a position control device, a certain position is selected on the outer end bases of 25 driving rotating shafts of the equipment for installation, and the position has the characteristics of small space for maintenance and overhaul, complex interface and the like, and 3 fasteners on the equipment are used for installation and positioning, and looseness prevention is realized through the double-lug stop washers.
The proximity switch base is arc-shaped, an annular hole is formed in the proximity switch base, and a proximity switch group is installed on the annular hole through matching with the double-lug stop washer;
the approach pointer is installed and positioned through a round nut washer with a circumferential local key groove and a double-lug stop washer, and rotates synchronously along with the driving rotating shaft;
furthermore, the structure radian of the proximity switch base of the utility model is matched with the structure shape of the outer ring bearing assembly outside the equipment;
furthermore, the upper surface of the proximity switch base of the utility model is provided with two annular holes which are symmetrically distributed, which can meet the requirements of the proximity switch on the installation of the annular holes and the position adjustment on the circumference, and the purpose of the angle adjustment of the installation position of the proximity switch;
furthermore, the proximity switch group comprises an A-type proximity switch adopting a non-shielding type with an induction distance of 8mm and a B-type proximity switch adopting a shielding type with a sensing distance of 3mm, so that the effect that the induction areas of the two proximity switches do not interfere with each other can be achieved, and the function of controlling the guide vane to adjust the angle position freely in a specified angle range can be realized;
furthermore, the proximity switch on the position control rotating shaft has a certain anti-loosening function after the proximity switch is installed in a severe vibration environment when the equipment works, the proximity switch is installed through a nonstandard double-lug stop washer, and the proximity switch is provided with tangent planes which are symmetrical at two sides and used for fixing the double-lug stop washer. The installation hole with the width of 10mm in the nonstandard double-lug stop washer is just matched with the proximity switch with two tangent planes for installation, after installation, adjustment and positioning, one folding lug of the double-lug stop washer and the edge of the fastening nut are folded together, and the other folding lug and the proximity switch base are bent together so as to achieve the anti-loosening positioning effect of the proximity switch.
Furthermore, the approach pointer is an induction part of the approach switch, the approach pointer is installed and positioned through a round nut washer with a circumferential local key groove and a double-lug stop washer, the approach pointer can be installed at any angle of 360 degrees during installation and debugging, the approach switch is enabled to be close to the approach switch for installation and positioning when the rotating shaft rotates to the left limit position and the right limit position, the approach pointer can synchronously rotate with the rotating shaft after installation and positioning, the pointer is driven to rotate through 3 positions set by installation of the approach switch during rotation of the guide vane, and when the approach pointer passes through an induction area at the end part of the approach switch, a switching value signal is generated inside the approach switch, and a guide vane rotating shaft rotation in-place signal is provided for a control center; the control center controls the oil cylinder to stop moving by controlling the conduction of the electromagnetic valve. Both sides of the end part of the pointer close to the pointer are in a round angle shape, and the middle of the end part of the pointer is a horizontal plane, so that the situation that when the pointer moves to a proximity switch induction area, a trigger in-place signal is generated in advance, and misoperation occurs can be reduced. The proximity pointer is made of 316 stainless steel, has good structural strength, can be screwed, positioned and fastened with the double-lug stop washer and the round nut washer, the mounting position of the proximity pointer is designed into an equal hexagonal shape, one lug of the double-lug stop washer can be bent nearby together with the double-lug stop washer, and the purpose of fastening, anti-loosening and positioning is achieved.
The utility model has the advantages that: the defects in the background technology are overcome, and the method has the following advantages:
1. the overall dimension of the position control device is smaller than or equal to 175 x 110 x 30mm, the total weight is smaller than or equal to 3kg, the requirement on an equipment installation interface is lower, and the position control device can be quickly installed together with equipment;
2. the position control device is flexible in installation position, can be installed together with any one of the 25 rotating shafts, and can achieve the purpose of controlling all guide vanes to be positioned at the specified angle position;
3. the position control device is designed in a structure and size matching mode according to the structural form of the outer ring bearing assembly of the equipment, the installation requirement of the position control device is met, the influence on the normal work of the equipment is small, and the requirement on an installation interface is low;
4. the position control device can meet the requirements of installation of the proximity switch on the annular hole and position adjustment on the circumference, and the aim of angle adjustment of the installation position of the proximity switch is met. When the guide vane adjusting device is installed, the guide vane adjusting device is close to two proximity switches, wherein 1 proximity switch adopts a non-shielding type A proximity switch with an induction distance of 8mm, and the other 1 proximity switch adopts a shielding type B proximity switch with a sensing distance of 3mm, so that the effect that the induction areas of the two proximity switches are not interfered with each other can be achieved, and the function of controlling the guide vane to adjust the angle position within a specified angle range at will can be realized;
5. the position control device has good anti-loosening performance, and loosening measures are adopted among all parts, so that the requirement that the equipment is used in the environment with large impact and vibration can be met.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of a proximity switch base according to the present invention;
fig. 3 is a schematic structural view of a double-lug stop washer of the present invention;
fig. 4 is a schematic structural view of the proximity pointer of the present invention;
FIG. 5 is a schematic structural view of the inner pad of the present invention;
fig. 6 is a schematic structural view of the outer gasket of the present invention;
fig. 7 is a plan view of the mounting structure of the present invention.
In the figure: 1. the device comprises a driving rotating shaft, 2, a proximity switch base, 3, a proximity pointer, 4, a double-lug stop washer, 5, a mounting hole, 6, an A-type proximity switch, 7, a B-type proximity switch, 8, an inner gasket, 9, an outer gasket and a ring hole 10.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Fig. 1 to 7 show an embodiment of a position sensing device for controlling rotation of an adjustable front guide vane of a fan, which includes a body, wherein the body includes a proximity switch base 2 mounted on an outer end base of a driving rotating shaft 1 of a device, and a proximity pointer 3 mounted on the driving rotating shaft 1; aiming at the requirements of small installation space and compact structure of a position control device, a certain position is selected on the outer end bases of 25 driving rotating shafts of the equipment for installation, and the position has the characteristics of small space for maintenance and overhaul, complex interface and the like, and 3 fasteners on the equipment are used for installation and positioning, and looseness prevention is realized through the double-lug stop washers. The proximity switch base 2 is arc-shaped, an annular hole 10 is formed in the proximity switch base 2, and a proximity switch group is mounted on the annular hole 10 through matching with the double-lug stop washer 4; the approach pointer 3 is installed and positioned through a round nut washer with a circumferential local key groove and a double-lug stop washer 4, and the approach pointer 3 synchronously rotates along with the driving rotating shaft 1;
the structure radian of the proximity switch base 2 is matched with the structure shape of an outer ring bearing assembly at the outer side of the equipment; the upper surface of the proximity switch base 2 is provided with two annular holes 10 which are symmetrically distributed, so that the mounting of the proximity switch on the annular holes 10 and the position adjustment on the circumference can be met, and the purpose of angle adjustment of the mounting position of the proximity switch can be met; the proximity switch group comprises an A-type proximity switch 6 adopting an 8mm induction distance non-shielding type and a B-type proximity switch 7 adopting a 3mm sensing distance shielding type, the effect that induction areas of the two proximity switches are not interfered with each other can be achieved, and further the function of controlling the guide vane to adjust the angle position freely in a specified angle range can be achieved;
the proximity switch limiting switch on the position control rotating shaft has a certain anti-loosening function after the proximity switch limiting switch on the equipment working process is installed in a severe vibration environment, the proximity switch is installed through the nonstandard double-lug stop washer 4, the proximity switch is provided with the tangent planes which are symmetrical at two sides, and the double-lug stop washer is fixed. The installation hole with the width of 10mm in the non-standard double-lug stop washer 4 is just matched with the proximity switch with two tangent planes for installation, after installation, adjustment and positioning, one folding lug of the double-lug stop washer 4 is folded together with the edge of the fastening nut, and the other folding lug is bent together with the proximity switch base, so that the anti-loosening positioning effect of the proximity switch is achieved.
The proximity pointer 3 is an induction part of the proximity switch, the proximity pointer 3 is installed and positioned through a round nut washer with a circumferential local key groove and a double-lug stop washer 4, during installation and debugging, the proximity pointer 3 can be installed at any angle of 360 degrees, when the rotating shaft rotates to the left limit position and the right limit position, the proximity switch is close to the proximity switch for installation and positioning, after installation and positioning, the proximity pointer 3 can synchronously rotate with the rotating shaft, when the guide vane rotates, the pointer is driven to rotate 3 positions set by the installation of the proximity switch, when the proximity pointer 3 passes through an induction area at the end part of the proximity switch, a switching value signal is generated inside the proximity switch, and a guide vane rotating shaft rotation in-place signal is provided for a control center; the control center controls the oil cylinder to stop moving by controlling the conduction of the electromagnetic valve. Both sides of the end part of the pointer close to the pointer are in a round angle shape, and the middle of the end part of the pointer is a horizontal plane, so that the situation that when the pointer moves to a proximity switch induction area, a trigger in-place signal is generated in advance, and misoperation occurs can be reduced. The proximity pointer is made of 316 stainless steel, has good structural strength, can be screwed, positioned and fastened with the double-lug stop washer and the round nut washer, the mounting position of the proximity pointer is designed into an equal hexagonal shape, one lug of the double-lug stop washer can be bent nearby together with the double-lug stop washer, and the purpose of fastening, anti-loosening and positioning is achieved.
When the proximity switch assembly is installed, an inner gasket 8 and an outer gasket 9 with a locking function are used in a matched mode, wherein the upper side of the inner gasket 8 is arc-shaped, and the arc radius of the inner gasket is the same as that of the inner surface of the proximity switch base, so that the inner gasket and the outer gasket can be tightly attached together. Interior gasket 8 left and right sides is parallel, and both sides width distance is 1mm less than proximity switch base internal surface height to can prevent that interior gasket 8 from taking place to rotate in the proximity switch base, have the effect of locking. The inner gasket 8 is provided with 1M 12 threaded hole, the thread turning direction is left-handed, and the proximity switch (the outer thread turning direction is right-handed) can be conveniently and quickly installed and fastened when being installed together, so that the functions of a nut and looseness prevention are achieved, the types and the number of fasteners required by the installation of the proximity switch are reduced, and the required installation space is reduced; the lower side of the outer gasket 9 is arc-shaped, and the arc radius of the outer gasket is the same as that of the outer surface of the proximity switch base, so that the outer gasket can be tightly attached to the outer surface of the proximity switch base. The left side and the right side of the outer gasket 9 are parallel, the width distance of the two sides is 1mm less than the height of the inner surface of the proximity switch base, and the upper side is in a planar shape, so that the outer gasket can be conveniently fastened and installed with the double-lug stop washer and the outer hexagon nut. One lug of the double-lug stop washer is bent together with the nut, and the other lug is bent together with the proximity switch base, so that the purpose of preventing looseness and stopping is achieved.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (6)
1. The utility model provides a position induction system convenient to control adjustable preceding leaflet of fan pivoted which characterized in that: the device comprises a body, wherein the body comprises a proximity switch base (2) arranged on a base at the outer end of a driving rotating shaft (1) of the device and a proximity pointer (3) arranged on the driving rotating shaft (1);
the proximity switch base (2) is arc-shaped, an annular hole (10) is formed in the proximity switch base (2), and a proximity switch group is installed on the annular hole (10) through a matched double-lug stop washer (4);
the approach pointer (3) is installed and positioned through a round nut washer with a circumferential local key groove and a double-lug stop washer (4), and the approach pointer (3) synchronously rotates along with the driving rotating shaft (1).
2. The position sensing device for facilitating the control of the rotation of an adjustable front guide vane of a fan as set forth in claim 1, wherein: the structure radian of the proximity switch base (2) is matched with the structure shape of the outer ring bearing assembly at the outer side of the equipment.
3. The position sensing device of claim 1, wherein the position sensing device is configured to facilitate control of rotation of the adjustable front vane of the wind turbine, and further comprising: the upper surface of the proximity switch base (2) is provided with two annular holes (10) which are symmetrically distributed.
4. The position sensing device of claim 1, wherein the position sensing device is configured to facilitate control of rotation of the adjustable front vane of the wind turbine, and further comprising: the proximity switch group comprises an A-type proximity switch (6) adopting an 8mm sensing distance non-shielding type and a B-type proximity switch (7) adopting a 3mm sensing distance shielding type.
5. The position sensing device of claim 1, wherein the position sensing device is configured to facilitate control of rotation of the adjustable front vane of the wind turbine, and further comprising: a single proximity switch is provided with bilaterally symmetrical tangent planes.
6. The position sensing device of claim 5, wherein the position sensing device is configured to facilitate control of rotation of the adjustable front guide vane of the wind turbine, and further comprising: and a mounting hole (5) matched with the proximity switch with the two symmetrical tangent planes is formed in the double-lug stop washer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123047692.XU CN217440342U (en) | 2021-12-07 | 2021-12-07 | Position sensing device convenient to control adjustable preceding guide vane of fan pivoted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123047692.XU CN217440342U (en) | 2021-12-07 | 2021-12-07 | Position sensing device convenient to control adjustable preceding guide vane of fan pivoted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217440342U true CN217440342U (en) | 2022-09-16 |
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ID=83210136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123047692.XU Active CN217440342U (en) | 2021-12-07 | 2021-12-07 | Position sensing device convenient to control adjustable preceding guide vane of fan pivoted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217440342U (en) |
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2021
- 2021-12-07 CN CN202123047692.XU patent/CN217440342U/en active Active
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