CN117553897A - Detection device and method - Google Patents
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- CN117553897A CN117553897A CN202311472367.9A CN202311472367A CN117553897A CN 117553897 A CN117553897 A CN 117553897A CN 202311472367 A CN202311472367 A CN 202311472367A CN 117553897 A CN117553897 A CN 117553897A
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- 238000001514 detection method Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims description 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims description 59
- 238000004804 winding Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 9
- 238000004904 shortening Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 244000025254 Cannabis sativa Species 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Abstract
The invention discloses a detection device, comprising: a detection assembly, comprising: a first support; a second support; the elastic piece is elastic, and two ends of the elastic piece are respectively connected with the first support piece and the second support piece; one end of the connecting piece is connected with the second supporting piece, the other end of the connecting piece is used for being connected with tested equipment, and the connecting piece can be lengthened and shortened; the elastic guide piece is positioned between the first support piece and the second support piece, and can enable the second support piece to move along a first direction relative to the first support piece, and the first direction is the arrangement direction of the first support piece and the second support piece; a displacement sensor for detecting a displacement amount of the second support member relative to the first support member in a first direction; the connecting piece can be driven by tested equipment, so that the connecting piece drives the second supporting piece to move relative to the first supporting piece, and the elastic force of the elastic piece is used for driving the second supporting piece to reset. The detection device of the invention can detect the amplitude of the moving equipment.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to a detection device and a detection method.
Background
In the related art, most parts on a machine vibrate when the machine is running. It is particularly important for vibrating components to detect the amplitude of their vibrations. By detecting the amplitude, the operator can learn the damage to the equipment and determine whether to repair the equipment.
In the conventional detection device, the vibration amplitude of the machine can be detected only when the machine is stationary. When the machine is moving, the existing detection device cannot detect the amplitude of the moving machine.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the invention proposes a detection device capable of detecting the amplitude of a moving device.
The invention also provides a detection method.
The detection device according to an embodiment of the first aspect of the present invention includes:
a detection assembly, comprising:
a first support;
a second support;
the elastic piece is elastic, and two ends of the elastic piece are respectively connected with the first supporting piece and the second supporting piece;
one end of the connecting piece is connected with the second supporting piece, the other end of the connecting piece is used for being connected with tested equipment, and the connecting piece can be lengthened and shortened;
an elastic guide member located between the first support member and the second support member, the elastic guide member being capable of moving the second support member relative to the first support member in a first direction, the first direction being an arrangement direction of the first support member and the second support member;
a displacement sensor for detecting an amount of displacement of the second support member in the first direction relative to the first support member;
the connecting piece can be driven by the tested equipment, so that the connecting piece drives the second supporting piece to move relative to the first supporting piece, and the elastic force of the elastic piece is used for driving the second supporting piece to reset.
The detection device provided by the embodiment of the invention has at least the following beneficial effects: the device to be tested is connected with the device to be tested through the connecting piece, so that the device to be tested can drive the connecting piece to move when the device to be tested moves. It is conceivable that the device to be tested will vibrate at the same time when it is moving, so that the connecting piece can follow the movement of the device to be tested by means of extension and shortening, and the connecting piece will also vibrate along with the device to be tested. Then, under the guidance of the elastic guide piece, the connecting piece drives the second support piece to move along the first direction relative to the first support piece, at the moment, the elastic piece is stretched, the elastic force of the elastic piece can drive the second support piece to reset, after the displacement of the second support piece is detected through the displacement sensor, the tested device can vibrate while moving, so that the displacement variation of the second support piece can be obtained in a specified time period, and the vibration variation of the tested device can be obtained through the displacement variation of the second support piece. Further, the vibration amplitude of the tested device can be obtained through the vibration variation of the tested device, and therefore the detecting device can detect the vibration amplitude of the moving device.
According to some embodiments of the invention, the connector comprises a support, a pulley and a rope, the support is connected to the second support, the pulley is rotatably connected to the support, the pulley is used for winding the rope, and the rope is used for connecting the tested device.
According to some embodiments of the invention, the support is rotatably connected to the second support.
According to some embodiments of the invention, the connector further comprises a damper connected to the pulley, the damper being for braking the pulley.
According to some embodiments of the invention, the elastic guide comprises a guide post and a slider, the guide post extends along the first direction, the guide post is connected to the first support, the slider is slidingly connected to the guide post, and the slider is fixedly connected to the second support.
According to some embodiments of the invention, the detection device further comprises a first movement mechanism, the detection assembly is connected to the first movement mechanism, and the first movement mechanism is used for driving the detection assembly to move along a second direction, and the second direction is perpendicular to the first direction.
According to some embodiments of the invention, the detection device further comprises a second motion mechanism connected to the first motion mechanism, the second motion mechanism being configured to drive the first motion mechanism to move in the first direction.
According to an embodiment of the second aspect of the present invention, a detection apparatus includes:
a detection assembly, comprising:
a first support;
a second support;
the elastic piece is elastic, and two ends of the elastic piece are respectively connected with the first supporting piece and the second supporting piece;
one end of the connecting piece is connected with the second supporting piece, the other end of the connecting piece is used for being connected with tested equipment, and the connecting piece can be lengthened and shortened;
an elastic guide member located between the first support member and the second support member, the elastic guide member being capable of moving the second support member relative to the first support member in a first direction, the first direction being an arrangement direction of the first support member and the second support member;
a tension sensor for detecting the elasticity of the elastic member;
the connecting piece can be driven by the tested equipment, so that the connecting piece drives the second supporting piece to move relative to the first supporting piece, and the elastic force of the elastic piece is used for driving the second supporting piece to reset.
The detection device provided by the embodiment of the invention has at least the following beneficial effects: the device to be tested is connected with the device to be tested through the connecting piece, so that the device to be tested can drive the connecting piece to move when the device to be tested moves. It is conceivable that the device to be tested will vibrate at the same time when it is moving, so that the connecting piece can follow the movement of the device to be tested by means of extension and shortening, and the connecting piece will also vibrate along with the device to be tested. Then, under the guidance of the elastic guide piece, the connecting piece drives the second support piece to move along the first direction relative to the first support piece, at the moment, the elastic piece is stretched, the elastic force of the elastic piece can drive the second support piece to reset, after the elastic force of the elastic piece is detected through the tension sensor, it is conceivable that the tested device vibrates while moving, therefore, the elastic force change quantity of the elastic piece can be obtained within a specified time period, and the vibration change quantity of the tested device can be obtained through the elastic force change quantity of the elastic piece. Further, the vibration amplitude of the tested device can be obtained through the vibration variation of the tested device, and therefore the detecting device can detect the vibration amplitude of the moving device.
A detection method according to an embodiment of a third aspect of the present invention, applied to the detection apparatus described in the embodiment of the first aspect, includes the steps of:
fixing the connecting piece on the tested equipment to enable the connecting piece to move along with the tested equipment;
and enabling the displacement sensor to acquire the displacement variation of the second support.
The detection method provided by the embodiment of the invention has at least the following beneficial effects: the connecting piece is fixed on the tested equipment to realize connection between the connecting piece and the tested equipment, and then the connecting piece moves along with the tested equipment, so that the tested equipment can drive the connecting piece to move when the tested equipment moves. It is conceivable that the device to be tested will vibrate at the same time when it is moving, so that the connecting piece can follow the movement of the device to be tested by means of extension and shortening, and the connecting piece will also vibrate along with the device to be tested. Then, under the guidance of the elastic guide piece, the connecting piece drives the second support piece to move along the first direction relative to the first support piece, at the moment, the elastic piece is stretched, the elastic force of the elastic piece can drive the second support piece to reset, after the displacement of the second support piece is detected through the displacement sensor, the tested device can vibrate while moving, so that the displacement variation of the second support piece can be obtained in a specified time period, and the vibration variation of the tested device can be obtained through the displacement variation of the second support piece. Further, the vibration amplitude of the tested equipment can be obtained through the vibration variation of the tested equipment, so that the vibration amplitude of the moving equipment can be detected after the detection device is used by the detection method.
According to the detection method of some embodiments of the present invention, the detection device further includes a first movement mechanism and a second movement mechanism, the detection component is connected to the first movement mechanism, the first movement mechanism is used for driving the detection component to move along a second direction, and the second direction is perpendicular to the first direction; the second movement mechanism is connected to the first movement mechanism and is used for driving the first movement mechanism to move along the first direction:
after the fixing of the connector to the device under test, the detection method further comprises the following steps: moving the detection assembly such that: the first direction is non-collinear with a direction of motion of the device under test.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a detecting device according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a detecting device according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a detecting device according to a third embodiment of the present invention;
FIG. 4 is a partial schematic view of a detection device according to some embodiments of the present invention;
FIG. 5 is a schematic diagram of a detecting device according to a fourth embodiment of the present invention;
fig. 6 is a schematic diagram of a detection device according to a fifth embodiment of the present invention.
Reference numerals:
the detection device 10, the detection assembly 100, the first support 110, the second support 120, the elastic member 130, the connecting member 140, the support 141, the pulley 142, the rope 143, the elastic guide 150, the guide post 151, the slider 152, the displacement sensor 160, the first movement mechanism 200, and the second movement mechanism 300;
the device under test 11.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the related art, most parts on a machine vibrate when the machine is running. It is particularly important for vibrating components to detect the amplitude of their vibrations. By detecting the amplitude, the operator can learn the damage to the equipment and determine whether to repair the equipment.
In the conventional detection device, the vibration amplitude of the machine can be detected only when the machine is stationary. When the machine is moving, the existing detection device cannot detect the amplitude of the moving machine. In particular, machine motion refers to a translation or rotation of a machine. For example, when the turntable rotates, the turntable can rotate, and the turntable can vibrate. In this case, it is necessary to provide a detection device that can detect the moving device.
Referring to fig. 1 to 4, in some embodiments, the detection apparatus 10 includes: the assembly 100 is detected. The detection assembly 100 is used to detect the amplitude of the device under test 11. The detection assembly 100 includes: the first support 110, the second support 120, the elastic member 130, the connection member 140, the elastic guide 150, and the displacement sensor 160. The elastic member 130 has elasticity, and both ends of the elastic member 130 are respectively connected to the first support 110 and the second support 120. The elastic member 130 may be a spring. It is conceivable that the elastic member 130 is stretched by pulling the second support member 120 after the first support member 110 is fixed, so that the distance between the first support member 110 and the second support member 120 becomes large. The elastic member 130 is then contracted, and the distance between the first support member 110 and the second support member 120 can be made smaller. One end of the connection member 140 is connected to the second support member 120, and the other end is used for connection with the device under test 11, and the connection member 140 can be extended and shortened. That is, the connection 140 may be connected to the device under test 11 such that when the device under test 11 translates, the connection 140 stretches to follow the translation of the device under test 11, and at this time the connection 140 may pull the second support 120 to move, moving the second support 120 away from the first support 110. The elastic guide 150 is located between the first support 110 and the second support 120, and the elastic guide 150 enables the second support 120 to move in a first direction relative to the first support 110, the first direction being an arrangement direction of the first support 110 and the second support 120. The first direction may also be a vertical direction. The elastic guide 150 can enable the elastic member 130 to stretch and retract in the first direction, and the elastic guide 150 can enable the second support 120 to move in the first direction, which can facilitate the displacement sensor 160 to detect the displacement of the second support 120 in the first direction, and improve the detection accuracy of the displacement sensor 160. Without the resilient guide 150, it is clearly difficult for the displacement sensor 160 to detect the displacement amount of the second support 120. The displacement sensor 160 is used to detect the displacement amount of the second support 120 relative to the first support 110 in the first direction. The connecting piece 140 can be driven by the tested device 11, so that the connecting piece 140 drives the second supporting piece 120 to move relative to the first supporting piece 110, and the elastic force of the elastic piece 130 is used for driving the second supporting piece 120 to reset.
Specifically, the connection member 140 is connected to the device under test 11, so that when the device under test 11 moves, the device under test 11 will drive the connection member 140 to move. It is conceivable that the device under test 11 vibrates at the same time when the device under test 11 moves, and therefore, the connection member 140 can follow not only the movement of the device under test 11 but also the vibration of the device under test 11 by extending and shortening. Then, under the guidance of the elastic guide 150, the connecting member 140 drives the second supporting member 120 to move in the first direction relative to the first supporting member 110, at this time, the elastic member 130 is stretched, the elastic force of the elastic member 130 drives the second supporting member 120 to reset, and after the displacement of the second supporting member 120 is detected by the displacement sensor 160, it is conceivable that the device under test 11 vibrates while moving, and therefore, the displacement variation of the second supporting member 120 can be obtained within a predetermined period of time, and the vibration variation of the device under test 11 can be obtained by the displacement variation of the second supporting member 120. Further, the amplitude of the device under test 11 can be obtained from the vibration variation of the device under test 11, and thus the detecting device 10 can detect the amplitude of the moving device.
The detailed process by which the detection component 100 detects the device under test 11 is described below. Referring to fig. 3, after one end of the connecting member 140 is connected to the device under test 11, the device under test can translate along the horizontal direction, and the device under test 11 vibrates when translating. At this time, the link 140 elongates to follow the movement of the device under test 11, while the link 140 vibrates following the device under test 11. When the connecting member 140 vibrates, the connecting member 140 drives the second supporting member 120 to reciprocate along the first direction (the reciprocation of the second supporting member 120 is completed under the combined action of the elastic member 130 and the connecting member 140). The displacement sensor 160 detects the displacement of the second support 120 while the second support 120 reciprocates. The displacement sensor 160 detects the displacement of the second support 120 a plurality of times within a prescribed time, for example, one minute of movement of the device under test 11, and then the amount of change in the displacement of the second support 120 can be obtained. The vibration variation, i.e. the amplitude, of the device under test 11 can be obtained indirectly from the displacement variation.
The specific structure of the connection member 140 is described below. Referring to fig. 3, in some embodiments, the connection member 140 includes a support 141, a pulley 142 and a rope 143, the support 141 is connected to the second support 120, the pulley 142 is rotatably connected to the support 141, the pulley 142 is used for winding the rope 143, and the rope 143 is used for connecting the device under test 11. The rope 143 may be a wire rope or a hemp rope. Wherein a wire rope is wound around the pulley 142 for connection with the device under test 11. When the tested device 11 translates, the steel wire rope translates and vibrates along with the tested device 11, and when the steel wire rope vibrates, the support 141 is driven to vibrate, and the support 141 vibrates to drive the second supporting piece 120 to move. In other words, the vibration of the support 141 may reciprocate the second support 120 in the first direction.
Further, in some embodiments, the stand 141 is rotatably coupled to the second support 120. Specifically, the support 141 is rotatably connected to the second support 120 in such a manner that a bearing is mounted on the second support 120, and a rotation shaft is mounted on the support 141 and is fixedly connected to the bearing, which allows the support 141 to rotate with respect to the second support 120. In this way, the detecting device 10 can detect the vibration condition of the device under test 11 when the device under test 11 moves, regardless of the rotational movement mode or the translational movement mode, so as to obtain the amplitude of the device under test 11. Therefore, the detection device 10 has wide applicability.
Further, in some embodiments, the connection 140 further includes a damper coupled to the pulley 142, the damper for braking the pulley 142. It is conceivable that when the pulley 142 unwinds the rope 143, the rope 143 follows the device under test 11, and the pulley 142 is rotated by the rope 143. If the friction between the pulley 142 and the rope 143 is small, the pulley 142 is rotated only and does not move in the extending direction of the rope 143, which may result in the second support 120 not moving relative to the first support 110, and also in the elastic member 130 not expanding and contracting, so that the displacement of the second support 120 is not detected. Thus, the damper may decelerate the pulley 142 that accelerates and rotates, and subject the pulley 142 to the tension of the rope 143, and extend the tension of the rope 143 onto the second support 120, pulling the second support 120 to move.
The specific structure of the elastic guide 150 is described below. Referring to fig. 4, in some embodiments, the elastic guide 150 includes a guide post 151 and a slider 152, the guide post 151 extends along a first direction, the guide post 151 is connected to the first support 110, the slider 152 is slidably connected to the guide post 151, and the slider 152 is fixedly connected to the second support 120. In this way, the second support 120 can move only in the first direction with respect to the first support 110 by the combined action of the guide post 151 and the slider 152, and displacement of the second support 120 can be conveniently detected by restricting the movement of the second support 120 in one direction.
Since the sizes of the different kinds of devices under test 11 are different, the detection assembly 100 in the detection apparatus 10 can be moved by the first movement mechanism 200, so that the detection apparatus 10 is adapted to the devices under test 11. Specifically, referring to fig. 3, in some embodiments, the detection device 10 further includes a first movement mechanism 200, the detection assembly 100 is connected to the first movement mechanism 200, and the first movement mechanism 200 is used for driving the detection assembly 100 to move along a second direction, and the second direction is perpendicular to the first direction. The first movement mechanism 200 is disposed above the device under test 11, the first movement mechanism 200 may be provided with a guide rail extending along the second direction, and the detection assembly 100 may slide on the guide rail, so that the detection assembly 100 may be adjusted in the second direction, thereby facilitating detection of the device under test 11. It should be added that the first direction may be a vertical direction and the second direction may be a horizontal direction.
Further, in addition to moving the detection assembly 100 in the second direction, the detection assembly 100 may also be moved in the first direction. This may make the detection device 10 more versatile. Referring to fig. 3, in some embodiments, the detection device 10 further includes a second movement mechanism 300, where the second movement mechanism 300 is connected to the first movement mechanism 200, and the second movement mechanism 300 is used to drive the first movement mechanism 200 to move along the first direction. The second movement mechanism 300 may be provided with a sliding rod, and the first movement mechanism 200 is provided with a sliding member, and after the sliding member is slidably connected with the sliding rod, the first movement mechanism 200 may move in the first direction. Further, the first movement mechanism 200 may be stopped from moving by a stopper. For example, the stopper may be a screw and a nut, the nut being fixed to the first movement mechanism 200, and the screw being fixed to the second movement mechanism 300. Since the detection assembly 100 is connected to the first movement mechanism 200, the detection assembly 100 moves synchronously when the first movement mechanism 200 moves.
In some embodiments, the detection apparatus 10 includes: the assembly 100 is detected. The detection assembly 100 is used to detect the amplitude of the device under test 11. The detection assembly 100 includes: the first support 110, the second support 120, the elastic member 130, the connection member 140, the elastic guide 150, and the tension sensor. The elastic member 130 has elasticity, and both ends of the elastic member 130 are respectively connected to the first support 110 and the second support 120. The elastic member 130 may be a spring. It is conceivable that the elastic member 130 is stretched by pulling the second support member 120 after the first support member 110 is fixed, so that the distance between the first support member 110 and the second support member 120 becomes large. One end of the connection member 140 is connected to the second support member 120, and the other end is used for connection with the device under test 11, and the connection member 140 can be extended and shortened. That is, the connection member 140 may be connected to the device under test 11 such that the connection member 140 follows the translation when the device under test 11 translates, and at this time the connection member 140 may pull the second support member 120 to move, moving the second support member 120 away from the first support member 110. The elastic guide 150 is located between the first support 110 and the second support 120, and the elastic guide 150 enables the second support 120 to move in a first direction relative to the first support 110, the first direction being an arrangement direction of the first support 110 and the second support 120. The first direction may also be a vertical direction. The elastic guide 150 can enable the elastic member 130 to stretch and retract in the first direction, the elastic guide 150 can enable the second support 120 to move in the first direction, that is, the elastic guide 150 can enable the elastic member 130 to stretch and retract in the first direction, which can facilitate the tension sensor to detect the elastic force of the elastic member 130 in the first direction, and meanwhile, the detection precision of the tension sensor is improved. Without the elastic guide 150, the elastic member 130 may be bent and deformed in multiple directions, which clearly makes it difficult for the tension sensor to detect the elastic force. The tension sensor is used for detecting the elastic force of the elastic member 130. The connecting piece 140 can be driven by the tested device 11, so that the connecting piece 140 drives the second supporting piece 120 to move relative to the first supporting piece 110, and the elastic force of the elastic piece 130 is used for driving the second supporting piece 120 to reset. In the present embodiment, reference may be made to fig. 1 to 4, but it should be noted that the sensor in fig. 1 to 4 is a displacement sensor 160, not a tension sensor.
Specifically, the connection member 140 is connected to the device under test 11, so that when the device under test 11 moves, the device under test 11 will drive the connection member 140 to move. It is conceivable that the device under test 11 vibrates at the same time when the device under test 11 moves, and therefore, the connection member 140 can follow not only the movement of the device under test 11 but also the vibration of the device under test 11 by extending and shortening. After that, under the guidance of the elastic guide 150, the connecting member 140 drives the second supporting member 120 to move in the first direction relative to the first supporting member 110, at this time, the elastic member 130 is stretched, the elastic force of the elastic member 130 drives the second supporting member 120 to return, and after the elastic force of the elastic member 130 is detected by the tension sensor, it is conceivable that the device under test 11 vibrates while moving, and therefore, the amount of change in the elastic force of the elastic member 130 can be obtained in a predetermined period of time, and the amount of change in the vibration of the device under test 11 can be obtained by the amount of change in the elastic force of the elastic member 130. Further, the amplitude of the device under test 11 can be obtained from the vibration variation of the device under test 11, and thus the detecting device 10 can detect the amplitude of the moving device.
The explanation follows regarding why the vibration variation of the device under test 11 can be obtained by the elastic force variation of the elastic member 130. It can be known from the law of hogfennel that the displacement of the elastic member 130 can be obtained while knowing the elastic coefficient and the elastic force of the elastic member 130, and the displacement of the elastic member 130 is made in the first direction while the connecting member 140 vibrates, so that the displacement variation of the elastic member 130 can be indirectly obtained. The amount of change in vibration of the device under test 11 can be obtained by the amount of change in displacement of the elastic member 130.
In some embodiments, a detection method is applied to the detection device 10 of claim 1, the detection method comprising the steps of:
s100, fixing the connecting piece 140 on the tested device 11, so that the connecting piece 140 moves along with the tested device 11;
s200, the displacement sensor 160 is caused to collect the displacement variation of the second support 120.
Specifically, the connection between the connection element 140 and the tested device 11 is achieved by fixing the connection element 140 on the tested device 11, and then the connection element 140 moves along with the tested device 11, so that the tested device 11 drives the connection element 140 to move when the tested device 11 moves. It is conceivable that the device under test 11 vibrates at the same time when the device under test 11 moves, and therefore, the connection member 140 can follow not only the movement of the device under test 11 but also the vibration of the device under test 11 by extending and shortening. Then, under the guidance of the elastic guide 150, the connecting member 140 drives the second supporting member 120 to move in the first direction relative to the first supporting member 110, at this time, the elastic member 130 is stretched, the elastic force of the elastic member 130 drives the second supporting member 120 to reset, and after the displacement of the second supporting member 120 is detected by the displacement sensor 160, it is conceivable that the device under test 11 vibrates while moving, and therefore, the displacement variation of the second supporting member 120 can be obtained within a predetermined period of time, and the vibration variation of the device under test 11 can be obtained by the displacement variation of the second supporting member 120. Further, the amplitude of the device under test 11 can be obtained from the vibration variation of the device under test 11, and thus, the amplitude of the moving device can be detected by using the detection device 10 by the detection method.
In some embodiments, the detection device 10 further includes a first movement mechanism 200 and a second movement mechanism 300, the detection assembly 100 is connected to the first movement mechanism 200, and the first movement mechanism 200 is used for driving the detection assembly 100 to move along a second direction, and the second direction is perpendicular to the first direction; the second movement mechanism 300 is connected to the first movement mechanism 200, and the second movement mechanism 300 is used for driving the first movement mechanism 200 to move along the first direction.
After fixing the connection 140 to the device under test 11, the inspection method further comprises the steps of: the detection assembly 100 is moved such that: the first direction is not collinear with the direction of movement of the device under test 11.
Specifically, it is assumed that in the device under test 11, amplitude detection is required for one flat panel of the device under test 11. The movement of the plate may then be at least two, a first in which the plate is parallel to the horizontal direction and the plate translates in the horizontal direction and a second in which the plate is parallel to the vertical direction and the plate translates in the vertical direction. As illustrated in the second manner, when the plate and the vertical direction are parallel and move, the vibration direction of the plate may be a horizontal direction, and if the detecting assembly 100 is located directly above the plate such that the first direction is collinear with the movement direction (i.e., the vertical direction) of the device under test 11, the vibration of the plate may hardly effectively drive the second support 120 to move relative to the first support 110, as may be particularly referred to in fig. 5. In this case, it is difficult for the displacement sensor 160 to precisely detect the displacement of the second support 120, so that the amplitude of the flat plate cannot be finally measured. To solve this problem, it is necessary to make the first direction non-collinear with the direction of movement of the device under test 11. Continuing with the second example, when the plate and the vertical direction are parallel and move, the first movement mechanism 200 and the second movement mechanism 300 cooperate to move the detection assembly 100, so that the detection assembly 100 is located at the upper left side of the plate, at this time, the connection member 140 forms an acute angle with the second support member 120, after the tensile force of the connection member 140 is decomposed, a part of the component force of the connection member 140 acts on the second support member 120 in the first direction, which can make the connection member 140 drive the second support member 120 to move, thereby finally measuring the amplitude of the plate, and in particular, referring to fig. 6, so that the detection device 10 can still measure the dynamic amplitude of the device under test 11 during movement even if the device under test 11 has different movement states. More specifically, the detection method can detect more tested devices 11, and the detection method has the characteristic of wide applicability.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. Detection device, characterized in that includes:
a detection assembly, comprising:
a first support;
a second support;
the elastic piece is elastic, and two ends of the elastic piece are respectively connected with the first supporting piece and the second supporting piece;
one end of the connecting piece is connected with the second supporting piece, the other end of the connecting piece is used for being connected with tested equipment, and the connecting piece can be lengthened and shortened;
an elastic guide member located between the first support member and the second support member, the elastic guide member being capable of moving the second support member relative to the first support member in a first direction, the first direction being an arrangement direction of the first support member and the second support member;
a displacement sensor for detecting an amount of displacement of the second support member in the first direction relative to the first support member;
the connecting piece can be driven by the tested equipment, so that the connecting piece drives the second supporting piece to move relative to the first supporting piece, and the elastic force of the elastic piece is used for driving the second supporting piece to reset.
2. The apparatus according to claim 1, wherein the connector comprises a holder connected to the second support, a pulley rotatably connected to the holder, and a rope for winding up the rope, the rope being used for connecting the device under test.
3. The test device of claim 2, wherein the mount is rotatably coupled to the second support.
4. The test device of claim 2, wherein the connector further comprises a damper coupled to the pulley, the damper for braking the pulley.
5. The device of claim 1, wherein the resilient guide comprises a guide post and a slider, the guide post extending in the first direction, the guide post being connected to the first support, and the slider and the guide post being slidably connected, the slider being fixedly connected to the second support.
6. The device of claim 1, further comprising a first motion mechanism, wherein the detection assembly is coupled to the first motion mechanism, wherein the first motion mechanism is configured to drive the detection assembly to move in a second direction, wherein the second direction is perpendicular to the first direction.
7. The device of claim 6, further comprising a second motion mechanism coupled to the first motion mechanism, the second motion mechanism configured to drive the first motion mechanism in the first direction.
8. Detection device, characterized in that includes:
a detection assembly, comprising:
a first support;
a second support;
the elastic piece is elastic, and two ends of the elastic piece are respectively connected with the first supporting piece and the second supporting piece;
one end of the connecting piece is connected with the second supporting piece, the other end of the connecting piece is used for being connected with tested equipment, and the connecting piece can be lengthened and shortened;
an elastic guide member located between the first support member and the second support member, the elastic guide member being capable of moving the second support member relative to the first support member in a first direction, the first direction being an arrangement direction of the first support member and the second support member;
a tension sensor for detecting the elasticity of the elastic member;
the connecting piece can be driven by the tested equipment, so that the connecting piece drives the second supporting piece to move relative to the first supporting piece, and the elastic force of the elastic piece is used for driving the second supporting piece to reset.
9. A detection method, characterized in that it is applied to the detection apparatus according to claim 1, comprising the steps of:
fixing the connecting piece on the tested equipment to enable the connecting piece to move along with the tested equipment;
and enabling the displacement sensor to acquire the displacement variation of the second support.
10. The method of claim 9, wherein the detection device further comprises a first motion mechanism and a second motion mechanism, the detection assembly being coupled to the first motion mechanism, the first motion mechanism being configured to drive the detection assembly to move in a second direction, the second direction being perpendicular to the first direction; the second movement mechanism is connected to the first movement mechanism and is used for driving the first movement mechanism to move along the first direction:
after the fixing of the connector to the device under test, the detection method further comprises the following steps: moving the detection assembly such that: the first direction is non-collinear with a direction of motion of the device under test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311472367.9A CN117553897A (en) | 2023-11-07 | 2023-11-07 | Detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311472367.9A CN117553897A (en) | 2023-11-07 | 2023-11-07 | Detection device and method |
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| Publication Number | Publication Date |
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| CN117553897A true CN117553897A (en) | 2024-02-13 |
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| CN202311472367.9A Pending CN117553897A (en) | 2023-11-07 | 2023-11-07 | Detection device and method |
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| Country | Link |
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| CN (1) | CN117553897A (en) |
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- 2023-11-07 CN CN202311472367.9A patent/CN117553897A/en active Pending
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