CN115979454A - Mining line temperature measuring device and cubical switchboard based on surface acoustic wave - Google Patents
Mining line temperature measuring device and cubical switchboard based on surface acoustic wave Download PDFInfo
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- CN115979454A CN115979454A CN202310266669.4A CN202310266669A CN115979454A CN 115979454 A CN115979454 A CN 115979454A CN 202310266669 A CN202310266669 A CN 202310266669A CN 115979454 A CN115979454 A CN 115979454A
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Abstract
The invention discloses a mining line temperature measuring device based on surface acoustic waves, which comprises a surface acoustic wave sensing assembly and a base, wherein the surface acoustic wave sensing assembly is used for measuring the temperature of a heating point, a rotating part and an electromagnetic rotation driving mechanism are arranged on the base, and the surface acoustic wave sensing assembly is connected to the rotating part; the electromagnetic rotation driving mechanism comprises an electromagnetic part, a swinging rod, a rotating shaft, a ratchet wheel, a driving pawl and a non-return pawl, wherein two ends of the rotating shaft are respectively connected with the ratchet wheel and the rotating part; the opening and closing of the electromagnetic piece drives the swinging rod to swing, and the swinging of the swinging rod drives the ratchet wheel, the rotating shaft and the rotating piece to rotate in a single direction through the driving pawl. According to the mining line temperature measuring device provided by the invention, the rotating piece is driven to rotate by the electromagnetic piece, so that the cost of the electromagnetic piece is lower than that of a motor on one hand, and a single surface acoustic wave sensor can monitor a plurality of heating nodes on the other hand.
Description
Technical Field
The invention relates to the power technology, in particular to a mining line temperature measuring device based on surface acoustic waves and a switch cabinet.
Background
It is known that the fire of the power cabinet is the most common power cabinet accident, because there are many switch contacts, bus bar connection portions, other electrical nodes (contact points) and so on in the power cabinet, and these portions may cause the contact resistance to increase due to loosening, aging, arc impact and so on, and if not discovered in time, the fire may be caused. Obviously, the on-line monitoring of the temperature of the electric power cabinet is the most effective solution.
In the prior art, a plurality of different modes are adopted to carry out temperature measurement and control on main heating points in an electric power cabinet, and common temperature measurement modes such as optical fiber temperature measurement, infrared thermal imaging temperature measurement, active wireless temperature measurement, inductive power-taking type wireless temperature measurement and the like are adopted, and the temperature measurement modes have advantages and disadvantages, for example, the optical ray temperature measurement can be distributed for temperature measurement, but the wired connection is adopted, the wiring is complex, the construction difficulty is high, and the time is long; the induction power-taking type wireless temperature measurement can be wirelessly transmitted, but has requirements on a working circuit of the tested equipment, and generally can only measure the temperature below 85 ℃.
In recent years, the surface acoustic wave wireless temperature measurement sensor is widely used, and has many advantages, such as no influence on insulation, high safety, no need of wiring, severe environment resistance, no maintenance in later period, strong anti-interference performance and the like, but has a disadvantage that a transmitter and a receiver of the sensor are preferably right opposite to a test object (heating node), so that a single sensor can only detect one heating node (contact point), compared with other sensors, the cost of the surface acoustic wave wireless temperature measurement sensor is higher, and switch contacts and bus connection nodes in a switch cabinet are fewer, more than a few, more than dozens and hundreds, and if all the surface acoustic wave wireless temperature measurement sensors are arranged, the cost is too high; meanwhile, in another angle, other electrical nodes except for the switch contact and the bus connection part can also cause high-temperature fire, but the heating node of a single switch cabinet is calculated in such a way, and based on cost reasons or space arrangement reasons, the prior art only measures the temperature of the switch contact or the temperature of the switch contact and the key bus connection node, so that the detection of the heating node cannot be realized as much as possible.
The sensor in the prior art almost has requirements on the test direction, and when the sensor is required to test the temperature of more than two heating nodes, the sensor needs to be driven to move, and the motor needs to be configured for the sensor to move, obviously, the cost of the motor is far higher than that of the sensor, and more serious problems are brought by means of solving the problems.
Disclosure of Invention
The invention aims to provide a mining line temperature measuring device based on surface acoustic waves and a switch cabinet, so as to solve the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a mining circuit temperature measuring device based on surface acoustic wave, its includes surface acoustic wave sensing component and base, surface acoustic wave sensing component is used for carrying out temperature measurement to the point that generates heat, be provided with on the base:
the surface acoustic wave sensing assembly is connected to the rotating piece;
the electromagnetic rotary driving mechanism comprises an electromagnetic part, a swinging rod, a rotating shaft, a ratchet wheel, a driving pawl and a non-return pawl, wherein two ends of the rotating shaft are respectively connected with the ratchet wheel and the rotating part, the driving pawl is connected to the swinging rod, and the driving pawl and the non-return pawl are matched with the ratchet wheel; the opening and closing of the electromagnetic piece drives the swinging rod to swing, and the swinging of the swinging rod drives the ratchet wheel, the rotating shaft and the rotating piece to rotate in a single direction in sequence through the driving pawl.
Foretell mining circuit temperature measuring device based on surface acoustic wave, the one end of pivot is rotated and is connected with a rotatory section of thick bamboo, the one end of swinging arms connect in on the rotatory section of thick bamboo.
The mining line temperature measuring device based on the surface acoustic waves is characterized in that the rotating cylinder is connected to the base through a first torsion spring.
According to the mining line temperature measuring device based on the surface acoustic wave, the non-return pawl is lapped on the ratchet wheel by means of gravity.
According to the mining line temperature measuring device based on the surface acoustic wave, the non-return pawl is connected to the base through the second torsion spring.
The mining line temperature measuring device based on the surface acoustic wave further comprises a passive position adjusting mechanism, wherein the passive position adjusting mechanism comprises a plurality of abutting parts arranged on the rotating part in the radial direction;
surface acoustic wave sensing assembly sliding connection in on the rotating member, surface acoustic wave sensing assembly is through spacing have an initial position on the rotating member, work as when the rotating member rotates, because the extrusion of butt piece makes surface acoustic wave sensing assembly is in still have a sliding position at least on the rotating member.
In the mining line temperature measuring device based on the surface acoustic wave, the abutting part is a first wedge-shaped surface, a second wedge-shaped surface is arranged on the surface acoustic wave sensing assembly, and when the rotating part rotates, the first wedge-shaped surface and the second wedge-shaped surface are in wedge-shaped fit so that the surface acoustic wave sensing assembly slides to the sliding position.
The mining line temperature measuring device based on the surface acoustic wave further comprises a passive swing adjusting mechanism, wherein the passive swing adjusting mechanism comprises a plurality of driving pieces arranged on a rotating path of the rotating piece;
the surface acoustic wave sensing assembly is connected to the rotating piece in a swinging mode, the surface acoustic wave sensing assembly is located at an initial position on the rotating piece through limiting, and when the rotating piece rotates, the surface acoustic wave sensing assembly is located at least at a swinging position on the rotating piece due to extrusion of the driving piece.
The mining line temperature measuring device based on the surface acoustic wave comprises a driving piece, a surface acoustic wave sensing assembly and a rotating piece, wherein the driving piece is a third wedge surface, a fourth wedge surface is arranged on the surface acoustic wave sensing assembly, and when the rotating piece rotates, the third wedge surface and the fourth wedge surface are in wedge fit so that the surface acoustic wave sensing assembly swings to a swinging position.
The utility model provides a cubical switchboard, its includes foretell mining circuit temperature measuring device based on surface acoustic wave on the rotation stroke of rotating member, surface acoustic wave sensing assembly has the detection position of at least with two relative settings of node that generate heat.
In the technical scheme, the mining line temperature measuring device based on the surface acoustic wave drives the rotating piece to rotate through the electromagnetic piece, so that the cost of the electromagnetic piece is lower than that of a motor on one hand, and a single surface acoustic wave sensor can monitor a plurality of heating nodes on the other hand.
Because the mining line temperature measuring device based on the surface acoustic wave has the technical effects, the switch cabinet comprising the mining line temperature measuring device based on the surface acoustic wave also has corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic structural diagram of a mining line temperature measurement device based on surface acoustic waves according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mining line temperature measuring device based on surface acoustic waves according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electromagnetic rotary driving mechanism according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electromagnetic rotary drive mechanism according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a rotating member according to yet another embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a rotating member according to an embodiment of the present invention;
FIG. 7 is a schematic view of a rotary member according to another embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a passive position adjustment mechanism according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a passive swing adjustment mechanism according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a connection column according to an embodiment of the present invention.
Description of reference numerals:
1. a base; 2. a surface acoustic wave sensing component; 3. a rotating member; 3.1, a chute; 4. an electromagnetic member; 5. a swing lever; 6. a rotating shaft; 7. a ratchet wheel; 8. a drive pawl; 9. a non-return pawl; 10. a rotary drum; 11. a passive position adjustment mechanism; 11.1, a position adjusting disc; 11.2, a position adjusting channel; 12. a passive swing adjustment mechanism; 12.1, adjusting a swing adjusting disc; 12.2, swinging the adjusting channel; 12.3, swinging the adjusting block; 13. connecting columns; 13.1, a first column; 13.2, a second cylinder; 13.3, a flat sliding part; 13.4, fourth wedge-facet.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1-10, a mining line temperature measurement device based on surface acoustic wave according to an embodiment of the present invention includes a surface acoustic wave sensing assembly 2 and a base 1, where the base 1 is provided with a rotating member 3 and an electromagnetic rotation driving mechanism, and the surface acoustic wave sensing assembly 2 is connected to the rotating member 3; the electromagnetic rotation driving mechanism comprises an electromagnetic part 4, an oscillating rod 5, a rotating shaft 6, a ratchet wheel 7, a driving pawl 8 and a non-return pawl 9, two ends of the rotating shaft 6 are respectively connected with the ratchet wheel 7 and the rotating part 3, the driving pawl 8 is connected to the oscillating rod 5, and the driving pawl 8 and the non-return pawl 9 are matched with the ratchet wheel 7; the opening and closing of the electromagnetic part 4 drives the swinging rod 5 to swing, and the swinging of the swinging rod 5 drives the ratchet wheel 7, the rotating shaft 6 and the rotating part 3 to rotate in one direction in sequence through the driving pawl 8.
Specifically, the base 1 is used for fixing the surface acoustic wave sensor assembly 2, which may be various fixing base structures in the prior art that can be fixed in a switch cabinet, such as a sheet-shaped clamping structure, a screw connection structure, a block, a bracket, and the like, the surface acoustic wave sensor assembly 2 is a sensor structure for detecting temperature by emitting and recovering surface acoustic waves, which is the prior art and is not repeated, one of the core innovation points of this embodiment is to perform overall position adjustment on the surface acoustic wave sensor assembly 2, the specific adjustment structure is an electromagnetic rotation driving mechanism and a rotating member 3, the rotating member 3 is rotatably disposed on the base 1, the surface acoustic wave sensor assembly 2 is disposed on the rotating member 3, which is to move along with the rotating member 3, and the rotating member 3 is connected to a rotating shaft 6, so that the rotating member 3 can rotate along with the rotation of the rotating shaft 6, correspondingly, the surface acoustic wave sensing assembly 2 can perform at least circular motion, the electromagnetic rotation driving mechanism is used for driving the rotating shaft 6 to rotate, the electromagnetic rotation driving mechanism comprises an electromagnetic element 4, a swinging rod 5, the rotating shaft 6, a ratchet 7, a driving pawl 8 and a non-return pawl 9, two ends of the rotating shaft 6 are respectively connected with the ratchet 7 and the rotating element 3, namely the ratchet 7, the rotating element 3 and the rotating shaft 6 synchronously rotate, the driving pawl 8 is connected with the swinging rod 5, the driving pawl 8 and the non-return pawl 9 are matched with the ratchet 7, the matching mode of the pawl and the ratchet 7 is unique, the pawls are lapped on the ratchet 7, the ratchet 7 can rotate in one direction, for example, the pawl can rotate counterclockwise but cannot rotate clockwise in fig. 3-4, in the embodiment, the driving pawl 8 and the non-return pawl 9 are lapped on the pawls of the ratchet 7, in contrast, the non-return pawl 9 is power-source-free, i.e., when the ratchet wheel 7 rotates in one direction, the non-return pawl 9 moves on the surface of each ratchet tooth in turn, and when the ratchet wheel 7 has a tendency to rotate in the other direction, the non-return pawl 9 abuts against the column ratchet teeth so that the ratchet wheel 7 cannot rotate. The driving pawl 8 is different, the driving pawl 8 is an active pawl and is connected to the oscillating rod 5, the oscillating rod 5 can oscillate as the name suggests, and the oscillating driving force comes from the electromagnetic element 4, optionally, the oscillating rod 5 is connected to the base 1 through a spring, or one end of the oscillating rod 5 is connected to the base 1 through a torsion spring, no matter the oscillating rod 5 is a spring or a torsion spring, the oscillating rod 5 has an initial position, one end of the oscillating rod 5 is a magnetic attraction structure, and the magnetic attraction structure is arranged opposite to the electromagnetic element 4, when the electromagnetic element 4 is started, the magnetic attraction structure is driven to move no matter the magnetic attraction structure is attracted or repelled, so that the oscillating rod 5 oscillates from the initial position to an attraction position or a repulsion position, with the repeated opening and closing of the electromagnetic element 4, the oscillating rod 5 can move repeatedly between the initial position and the attraction position, or between the initial position and the repulsion position, the above-mentioned oscillation, the driving pawl 8 is connected to the oscillating rod 5, when the oscillating rod 5 oscillates, the oscillating rod 8 correspondingly moves, as shown in fig. 3-4, when the oscillating rod 5 slides clockwise, the ratchet wheel 7 does not rotate, when the oscillating rod 5 slides clockwise, the ratchet wheel 7 is not matched with the ratchet wheel, when the ratchet wheel 7, the ratchet wheel 7 obviously, when the oscillating rod 5 slides clockwise. In this way, although the driving pawl 8 reciprocates, the ratchet wheel 7 rotates unidirectionally and intermittently, so that on the whole, the electromagnetic element 4 is opened and closed to drive the swinging rod 5 to swing, the swinging rod 5 swings to drive the ratchet wheel 7 to rotate intermittently through the driving pawl 8, the rotation of the ratchet wheel 7 drives the rotating shaft 6 to rotate, the rotation of the rotating shaft 6 drives the rotating element 3 to rotate, and all the rotations are intermittently and unidirectionally rotated based on the matching relationship between the driving pawl 8 and the ratchet wheel 7.
In this embodiment, since the surface acoustic wave sensor assembly 2 is connected to the rotating member 3, it can have at least one annular motion track, and only needs to align the motion track to at least two heating nodes on the electronic control cabinet, so that a single surface acoustic wave sensor assembly 2 can be aligned to at least two different heating nodes, thereby monitoring at least the heating nodes. And the whole driving unit is an electromagnetic part 4, so that the motor has small volume and low cost compared with a motor.
In this embodiment, the ratchet pawl 9 is used to prevent the ratchet wheel 7 from rotating reversely (e.g. the reverse sliding of the driving pawl 8 may have a certain reverse rotation range due to friction), which is a function of the conventional pawl and will not be described in detail.
In the embodiments of the present invention, optionally, the ratchet pawl 9 is overlapped on the ratchet wheel 7 by gravity, and at this time, as shown in fig. 3, the ratchet pawl 9 can be reset by gravity, so that there is no need to provide an elastic member, but preferably, the ratchet pawl 9 is connected to the base 1 by a second torsion spring, and the ratchet pawl 9 is used for resetting the ratchet pawl 9 so that it is always abutted on the ratchet teeth of the ratchet wheel 7.
According to the mining line temperature measuring device based on the surface acoustic wave, the rotating piece 3 is driven to rotate through the electromagnetic piece 4, so that the cost of the electromagnetic piece 4 is lower than that of a motor on one hand, and a single surface acoustic wave sensor can monitor a plurality of heating nodes on the other hand.
In another embodiment provided by the present invention, preferably, when one end of the rotating shaft 6 is rotatably connected with a rotating cylinder 10, one end of the swinging rod 5 is connected to the rotating cylinder 10, that is, the swinging rod 5 and the rotating shaft 6 are coaxial, but since the rotation of the swinging rod 5 and the rotating shaft 6 are mutually independent, the swinging rod 5 and the rotating shaft 10 can rotate relatively, and the coaxial advantage is that the swinging amplitude of the swinging rod 5 is completely consistent with the rotating amplitude of the pawl, so that the driving of the pawl 8 to the ratchet wheel 7 is smoother. Further, the rotary cylinder 10 is connected to the base 1 by a first torsion spring, which is used for resetting the swing lever 5 and automatically resets when the electromagnetic element 4 does not apply a magnetic force to the swing lever 5.
In another embodiment of the present invention, as shown in fig. 5, a central hole is formed in the ratchet wheel 7, ratchet teeth are also disposed on the hole wall of the central hole, the rotating shaft 6 is connected to the side wall of the ratchet wheel 7 through a connecting member to receive driving, the driving pawl 8 is matched with the ratchet teeth on the outer wall of the ratchet wheel 7, the non-return pawl 9 is matched with the ratchet teeth on the hole wall of the central hole of the ratchet wheel 7, the driving pawl 8 and the non-return pawl 9 are both rotatably connected to the swing rod 5, the swing center of the swing rod 5 is disposed between the driving pawl 8 and the non-return pawl 9, the swing rod 5 is also connected to the base 1 between the driving pawl 8 and the non-return pawl 9 through a swing shaft, and an elastic member, such as a spring or an elastic rope, has two ends respectively connected to the driving pawl 8 and the non-return pawl 9, so that when the swing rod 5 swings, the driving pawl 8 and the non-return pawl 9 are located on two sides of the swing center of the swing rod 5, the driving pawl 8 and the non-return pawl 9 are respectively driving a pawl 7 to rotate a ratchet teeth (the ratchet teeth) on the inner wall of the swing rod 7, the ratchet teeth 7, the swing rod 5 slides clockwise, and when the swing rod 5 swings, the non-return pawl 7 slides on the inner wall of the ratchet teeth (the ratchet teeth 9) of the swing rod 5). That is, the driving pawls 8 and the non-return pawls 9 perform driving and non-return functions, respectively, in the swing stroke, so that the transmission speed is doubled. It is two, pressure is spacing each other, and drive pawl 8 and backstop 9 are connected to the elasticity rope for drive pawl 8 and backstop 9 draw close each other, and both are spacing each other, have reduced an elastic component moreover, and prior art drive pawl 8 and backstop 9 respectively need the elastic component to carry on spacing so that two pawls all laminate the ratchet.
In a further embodiment of the present invention, the present invention further comprises a passive position adjusting mechanism 11, wherein the passive position adjusting mechanism 11 comprises a plurality of abutments arranged in a radial direction of the rotating member 3; the surface acoustic wave sensing component 2 is connected to the rotating part 3 in a sliding mode, a radial sliding groove 3.1 or a radial sliding rail is arranged on the rotating part 3, the surface acoustic wave sensing component 2 is connected to the sliding groove 3.1 or the radial sliding rail in a sliding mode, the surface acoustic wave sensing component 2 is limited on the rotating part 3, an initial position is the position of the surface acoustic wave sensing component 2 on the rotating part 3 under the action of no external force, the initial position can be limited through a limiting structure and can also be maintained and reset through elastic limiting of an elastic part, when the rotating part 3 rotates, the surface acoustic wave sensing component 2 at least has a sliding position on the rotating part 3 due to extrusion of the abutting part, and therefore along with rotation of the rotating part 3, the abutting part is located on the rotation stroke of the sensing component 2, the abutting part enables the surface acoustic wave sensing component 2 to be forced to slide on the rotation, the surface acoustic wave sensing component 2 is not only in a circular motion but also in a radial reciprocating motion, and the advantage that the motion range of the surface acoustic wave sensing component 2 is a disc rather than a circle, and the heating node which can cover a larger range.
Preferably, the abutting part is a first wedge-shaped surface, a second wedge-shaped surface is arranged on the surface acoustic wave sensing assembly 2, when the rotating part 3 rotates, the first wedge-shaped surface and the second wedge-shaped surface are in wedge-shaped fit so that the surface acoustic wave sensing assembly 2 slides to the sliding position, namely the first wedge-shaped surface is located on the moving path of the second wedge-shaped surface, and when the surface acoustic wave sensing assembly 2 moves to the first wedge-shaped surface, the surface acoustic wave sensing assembly 2 is driven to move in the radial direction through the wedge-shaped fit.
In a further embodiment of the present invention, the present invention further comprises a passive swing adjusting mechanism 12, wherein the passive swing adjusting mechanism 12 comprises a plurality of driving members disposed on the rotation path of the rotating member 3; the surface acoustic wave sensing component 2 is connected to the rotating member 3 in a swinging manner, the surface acoustic wave sensing component 2 is limited on the rotating member 3 by a limit position and has an initial position, the initial position is the same as the initial position on the passive position adjusting mechanism 11, namely, the specific orientation of the specific position on the rotating member 3 is vertically arranged at one end of the rotating member 3, but the specific relative reference is different, the sliding position in the passive position adjusting mechanism 11 is different from the initial position in that the radial position of the surface acoustic wave sensing component 2 on the rotating member 3 is different, and in the passive swinging adjusting mechanism 12, when the rotating member 3 rotates, the surface acoustic wave sensing component 2 at least has a swinging position on the rotating member 3 due to the extrusion of the driving member. The difference between the swing position and the initial position is that the relative angle between the surface acoustic wave sensor assembly 2 and the rotary member 3 is different, for example, in the initial position, the surface acoustic wave sensor assembly 2 is perpendicular to the rotary member 3, and in the swing position, the surface acoustic wave sensor assembly 2 is perpendicular to the rotary member 3, and an included angle of 30 degrees is formed. At this moment, the swing of surface acoustic wave sensing assembly 2 also pivoted connect in on the rotating member 3, if through a rotation axis connection on the rotating member 3, it is same this moment, set up the driving piece on surface acoustic wave sensing assembly 2 along with the 3 pivoted rotation path of rotating member, go the outer wall of drive surface acoustic wave sensing assembly 2 through the driving piece and can realize letting its swing, it is comparatively preferred, the driving piece is the third wedge face, be provided with fourth wedge face 13.4 on the surface acoustic wave sensing assembly 2, work as when rotating member 3 rotates, third wedge face and fourth wedge face 13.4 wedge cooperation are so that surface acoustic wave sensing assembly 2 swings to the wobbling position.
For the passive swing adjusting mechanism 12 and the passive position adjusting mechanism 11, since the surface acoustic wave sensor assembly 2 needs to be rotated or slidably connected to the rotating member 3, which is difficult to be implemented simultaneously, to solve the problem, further, the embodiment provides a preferable solution, the surface acoustic wave sensor assembly 2 is disposed on the connecting column 13, the connecting column 13 includes a first column 13.1 and a second column 13.2, which are rotatably connected to each other, the first column 13.1 is slidably connected to the sliding slot 3.1 of the rotating member 3 at one end thereof, preferably, one end of the first column 13.1 is a flat sliding portion 13.3, which is convenient to slide, can limit and has better stability, the (emitting portion and receiving portion of the surface acoustic wave sensor assembly 2 are connected to the second column 13.2, and a position adjusting disk 11.1 and a swing adjusting disk 12.1 are disposed at the same time, the position adjusting channel 11.2 is disposed on the position adjusting disk 11.1, the oscillating adjusting disk 12.1 is provided with an oscillating adjusting channel 12.2, the edge of the oscillating adjusting channel 12.2 is provided with an oscillating adjusting block 12.3, the position adjusting disk 11.1 is arranged opposite to the rotary member 3, the oscillating adjusting disk 12.1 is arranged opposite to the position adjusting disk 11.1, i.e. the position adjusting disk 11.1 is arranged between the oscillating adjusting disk 12.1 and the rotary member 3, the first cylinder 13.1 is arranged in the position adjusting channel 11.2, the second cylinder 13.2 is arranged in the oscillating adjusting channel 12.2, the oscillating adjusting channel 12.2 is arranged in axial coincidence with the position adjusting channel 11.2, but the oscillating adjusting channel 12.2 has a larger width than the position adjusting channel 11.2, the arrangement being such that when the rotary member 3 rotates, the first cylinder 13.1 can slide due to the position adjusting disk 11.1 being immobile, it must move along the position adjusting channel 11.2, as shown in figures 1, 6 and 7, so need not the butt piece just can completely plan the motion path of surface acoustic wave sensing subassembly 2, and to second cylinder 13.2, likewise, because swing adjustment disc 12.1 is different and be provided with a plurality of swing regulating blocks 12.3 on it, at this moment under swing regulating block 12.3's butt for second cylinder 13.2 can swing first cylinder 13.1 relatively, can directly use foretell third wedge face and fourth wedge face 13.4 this moment, set up fourth wedge face 13.4 on second cylinder 13.2, set up third wedge face on swing regulating block 12.3, so realize the passive control to removal and swing simultaneously.
More preferably, as shown in fig. 2, the swing adjusting disk 12.1 may be eliminated, and the swing adjusting block 12.3 is directly arranged at the edge of the position adjusting channel 11.2 on the position adjusting disk 11.1, and only when the size of the swing adjusting block 12.3 is such that the abutting part can abut against the second cylinder 13.2, that is, when compared with the swing adjusting block 12.3 in the swing adjusting disk 12.1, the height of the swing adjusting block 12.3 is higher, so that the position adjusting disk 11.1 realizes the passive control of swing and sliding at the same time, and is extremely efficient.
In this embodiment, the rotating member 3, the position adjusting disk 11.1 and the swinging adjusting disk 12.1 may be coaxially disposed, and at this time, the central shafts of the position adjusting disk 11.1 and the swinging adjusting disk 12.1 and the rotating shaft 6 of the rotating member 3 may relatively slide, so that the rotating member 3 rotates while the position adjusting disk 11.1 and the swinging adjusting disk 12.1 are not moved.
The embodiment of the invention also provides a switch cabinet which comprises the mining line temperature measuring device based on the surface acoustic wave, wherein the surface acoustic wave sensing assembly 2 is provided with a detection position which is at least opposite to two heating nodes on the rotation stroke of the rotating piece 3. Because the mining line temperature measuring device based on the surface acoustic wave has the technical effects, the switch cabinet comprising the mining line temperature measuring device based on the surface acoustic wave also has corresponding technical effects.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides a mining circuit temperature measuring device based on surface acoustic wave, it includes surface acoustic wave sensing component and base, surface acoustic wave sensing component is used for carrying out temperature measurement to the point that generates heat, its characterized in that, be provided with on the base:
the surface acoustic wave sensing assembly is connected to the rotating piece;
the electromagnetic rotary driving mechanism comprises an electromagnetic part, a swinging rod, a rotating shaft, a ratchet wheel, a driving pawl and a non-return pawl, wherein two ends of the rotating shaft are respectively connected with the ratchet wheel and the rotating part, the driving pawl is connected to the swinging rod, and the driving pawl and the non-return pawl are matched with the ratchet wheel; the opening and closing of the electromagnetic piece drives the swinging rod to swing, and the swinging of the swinging rod drives the ratchet wheel, the rotating shaft and the rotating piece to rotate in a single direction in sequence through the driving pawl.
2. The device as claimed in claim 1, wherein one end of the rotating shaft is rotatably connected with a rotating cylinder, and one end of the swinging rod is connected with the rotating cylinder.
3. The apparatus of claim 2, wherein the rotary drum is coupled to the base by a first torsion spring.
4. The device as claimed in claim 1, wherein said ratchet pawl is gravitationally lapped on said ratchet wheel.
5. The apparatus of claim 1, wherein said backstop pawl is connected to said base by a second torsion spring.
6. The device of any one of claims 1-5, further comprising a passive position adjustment mechanism comprising a plurality of abutments arranged radially of the rotating member;
surface acoustic wave sensing assembly sliding connection in on the rotating member, surface acoustic wave sensing assembly is through spacing have an initial position on the rotating member, work as when the rotating member rotates, because the extrusion of butt piece makes surface acoustic wave sensing assembly is in still have a sliding position at least on the rotating member.
7. The device of claim 6, wherein said abutment is a first wedge surface, and wherein said saw sensor assembly has a second wedge surface disposed thereon, and wherein said first wedge surface and said second wedge surface cooperate in a wedge shape to slide said saw sensor assembly to a sliding position when said rotating member rotates.
8. The device according to any one of claims 1-5, further comprising a passive oscillation adjustment mechanism comprising a plurality of driving members disposed in a path of rotation of said rotating member;
the surface acoustic wave sensing assembly is connected to the rotating piece in a swinging mode, the surface acoustic wave sensing assembly is located at an initial position on the rotating piece through limiting, and when the rotating piece rotates, the surface acoustic wave sensing assembly is located at least at a swinging position on the rotating piece due to extrusion of the driving piece.
9. The apparatus of claim 8, wherein said driver is a third wedge surface, and wherein said saw sensor assembly has a fourth wedge surface disposed thereon, said third wedge surface and said fourth wedge surface wedge engaging to allow said saw sensor assembly to swing to a swing position when said rotating member rotates.
10. A switchgear, characterized in that it comprises a surface acoustic wave based mining line temperature measurement device according to any of claims 1-9, and the surface acoustic wave sensor assembly has a detection position opposite to at least two heating nodes on the rotation stroke of the rotating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310266669.4A CN115979454B (en) | 2023-03-20 | 2023-03-20 | Mining circuit temperature measuring device and cubical switchboard based on surface acoustic wave |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310266669.4A CN115979454B (en) | 2023-03-20 | 2023-03-20 | Mining circuit temperature measuring device and cubical switchboard based on surface acoustic wave |
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| CN115979454A true CN115979454A (en) | 2023-04-18 |
| CN115979454B CN115979454B (en) | 2023-08-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840927A (en) * | 2012-09-14 | 2012-12-26 | 中国科学院半导体研究所 | Surface acoustic wave temperature monitoring system suitable for gas insulated switch cabinet |
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| CN215414099U (en) * | 2021-08-13 | 2022-01-04 | 无锡浩博电气有限公司 | Temperature monitoring device of high-voltage switch cabinet |
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2023
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| CN102840927A (en) * | 2012-09-14 | 2012-12-26 | 中国科学院半导体研究所 | Surface acoustic wave temperature monitoring system suitable for gas insulated switch cabinet |
| CN102879126A (en) * | 2012-10-26 | 2013-01-16 | 奉化市供电局 | Wireless temperature sensing system for switch cabinet equipment |
| CN104062029A (en) * | 2014-06-23 | 2014-09-24 | 浙江大学 | Electric spindle temperature measuring device based on surface acoustic wave |
| CN104567963A (en) * | 2015-01-16 | 2015-04-29 | 王东方 | Surface acoustic wave wireless sensor solution aimed at complex object to be detected |
| KR101655869B1 (en) * | 2015-05-29 | 2016-09-23 | 주식회사 에이엠티솔루션 | Temperature sensor and Temperature measuring device using surface acoustic wave, Real time Passive temperature measurement system thereof |
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| CN207528364U (en) * | 2017-06-08 | 2018-06-22 | 国家电网公司 | power switch cabinet passive wireless temperature measuring device |
| CN107941368A (en) * | 2017-10-10 | 2018-04-20 | 国网浙江省电力公司湖州供电公司 | A kind of electrical equipment detection device based on surface acoustic wave |
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| CN215414099U (en) * | 2021-08-13 | 2022-01-04 | 无锡浩博电气有限公司 | Temperature monitoring device of high-voltage switch cabinet |
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| CN115979454B (en) | 2023-08-04 |
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