vibration detector

Abstract

The utility model provides a kind of vibration detector, including detection circuit, pedestal, first mount and second mount, detection circuit is connected with alarm module;Pedestal is movably provided with ball, ball is made of conductive material;First mount is set on pedestal, and first mount is provided with movable cavity and probe assembly, probe assembly includes adjusting seat and two probes, two probes are electrically connected with detection circuit, and the respective one end of two probes is inserted into movable cavity, ball is at least partially embedded in movable cavity and can move up and down, so that ball can be electrically connected with two probes simultaneously, so that detection circuit is connected and triggers alarm module to send alarm;Second mount is set on the side of first mount away from pedestal, and second mount is provided with adjusting piece, and one end of adjusting piece is connected with adjusting seat, adjusting piece can adjust the height where adjusting seat is, and then adjust the spacing between probe and ball;The utility model is simple in structure, reliable and more direct in sensitivity adjustment.

Description

Technical Field

[0001] This utility model relates to the field of fault detection technology, specifically to a vibration detector. Background Technology

[0002] Abnormal vibrations during equipment operation are often early signs of malfunction, such as loose parts, imbalance, or worn bearings. Timely detection of these abnormal vibrations and issuing alarms are crucial for preventing serious equipment accidents, reducing maintenance costs, and ensuring production safety.

[0003] A sound source acquisition device based on a vibration signal equipment fault detection system is available. This device is fixed to the equipment with an adhesive patch and uses a probe to sense equipment vibration. Its core triggering mechanism is as follows: when the equipment vibrates, it causes the probe and its top lower magnetic plate to vibrate, making them attract an upper magnetic plate suspended by a tension spring. This causes a conductive sheet connected to the magnetic plate to contact, energizing the audio acquisition unit for recording and alarm functions.

[0004] Although the existing technology provides a sound source acquisition device based on a vibration signal equipment fault detection system, this device uses magnetic attraction to conduct the circuit, and its trigger sensitivity mainly depends on the balance between the magnetic force between the two magnetic plates and the tension of the spring. While the height of the upper magnetic plate can be adjusted by rotating the sliding sleeve, thereby fine-tuning the tension of the spring, this adjustment method has the following problems: First, the adjustment process affects the balance of the entire magnetic-spring system, and its sensitivity changes non-linearly, making precise and stable calibration difficult and inconvenient. Second, its structure includes multiple cooperating components such as a screw sleeve, connecting rod, tension spring, and guide rod, resulting in complex assembly and high cost. Utility Model Content

[0005] The purpose of this invention is to provide a vibration detector that is simple in structure, reliable, and allows for more direct sensitivity adjustment.

[0006] To achieve the above objectives, this utility model provides a vibration detector, including a detection circuit, a base, a first mounting base, and a second mounting base. The detection circuit is connected to an alarm module. A sphere made of conductive material is movably disposed on the base. The first mounting base is disposed on the base and has a movable cavity and a probe assembly. The probe assembly includes an adjustment seat and two probes, both of which are electrically connected to the detection circuit. One end of each probe extends into the movable cavity. The sphere is at least partially embedded in the movable cavity and can move up and down. When the sphere moves upward, it can simultaneously connect to both probes, thereby activating the detection circuit and triggering the alarm module to issue an alarm. The second mounting base is disposed on the side of the first mounting base facing away from the base. An adjustment component is disposed on the second mounting base, one end of which is connected to the adjustment seat. The adjustment component can adjust the height of the adjustment seat, thereby adjusting the distance between the probe and the sphere.

[0007] As can be seen from the above scheme, by placing the sphere and probe correspondingly inside the movable cavity, when the equipment vibrates abnormally, the sphere vibrates up and down, causing the sphere to contact the probe, activating the detection circuit, and triggering the alarm module to issue an alarm, thus reminding the staff to repair the equipment in time. This has the advantage of high reliability. By setting an adjustment component to adjust the distance between the probe and the sphere, the trigger sensitivity can be adjusted, which has the advantages of simple structure and convenient operation.

[0008] A further design involves extending the active cavity in a direction parallel to the adjustment direction of the probe, with each probe having a contact portion at its end. In the direction of extension of the active cavity, the two contact portions are equidistant from the sphere, and in the direction perpendicular to the direction of extension of the active cavity, the two contact portions are equidistant from the center line of the active cavity.

[0009] As can be seen from the above scheme, the above settings can help guide the sphere to move in the direction of the probe when it vibrates, and can ensure that the sphere can contact both probes at the same time, thus avoiding misalignment between the sphere and the probe when it vibrates.

[0010] A further design includes a base with an upward-opening first groove that communicates with a movable cavity, and a sphere positioned within the first groove; a first mounting base with a downward-protruding sleeve that extends into the first groove and fits around the outside of the sphere, and a movable cavity positioned within the sleeve, the width of which is greater than the diameter of the sphere.

[0011] A further option is to have two through holes extending vertically from the top and bottom of the first mounting base, both of which are connected to the upper part of the movable cavity; two probes are respectively inserted into the corresponding first through holes, with the probes and the first through holes being fitted with a clearance fit.

[0012] As can be seen from the above scheme, by setting the first perforation, a guiding function is provided to ensure that the probe can move in the vertical direction.

[0013] A further embodiment is that the second mounting base has a second groove and a second through hole, the second through hole is located above the second groove and communicates with the second groove; the adjusting base is located in the second groove, the adjusting base has a mounting hole, and the adjusting element passes through the second through hole and connects with the mounting hole.

[0014] As can be seen from the above scheme, by setting a second groove, sufficient space is reserved for the up and down movement of the adjustment seat, thus avoiding collisions.

[0015] A further option is to have the adjusting component fit with the second through hole with a clearance, and to have the adjusting component threadedly connected to the mounting hole.

[0016] As can be seen from the above scheme, the probe assembly can be moved up and down by turning the adjusting parts in both directions, which has the advantages of simple structure, convenient operation and high adjustment accuracy.

[0017] A further option is that the adjusting component has a head and a connecting part at both ends, the head is connected to the first mounting base, the middle part of the adjusting component is threaded to the adjusting base, the connecting part is rotatably connected to the first mounting base, and the first mounting base is provided with a limiting structure that can prevent the connecting part from disengaging.

[0018] As can be seen from the above scheme, the above settings can limit the movement of the adjusting member up and down along its extension direction, and prevent the sphere from pushing the probe upward when it comes into contact with the probe.

[0019] A further option is to provide a connection component on the base for connecting to the device under test.

[0020] As can be seen from the above scheme, the above settings facilitate the fixing of the vibration detector of this utility model onto the device to be tested.

[0021] A further option is that the connecting component is at least one of the following: a permanent magnet, an electromagnet, or an adhesive patch.

[0022] The above settings facilitate the rapid connection of the vibration detector of this invention to the device under test, saving installation time.

[0023] A further option is that the alarm module can emit audible and / or visual alarms. Attached Figure Description

[0024] Figure 1 This is a structural diagram of an embodiment of the present utility model.

[0025] Figure 2 This is an exploded view from the first perspective of an embodiment of this utility model.

[0026] Figure 3 This is an exploded view from a second perspective of an embodiment of this utility model.

[0027] Figure 4 This is a cross-sectional view of an embodiment of the present utility model.

[0028] Figure 5 This is a cross-sectional view of the first mounting base in an embodiment of this utility model.

[0029] Explanation of reference numerals in the attached figures: 1-Base, 11-First groove, 12-Placement slot; 2-First mounting base, 21-Sleeve portion, 211-Modible cavity, 22-First through hole; 3-Second mounting base, 31-Second groove, 32-Second through hole, 33-Third groove; 4- Sphere; 5-Probe assembly, 51-Adjustment seat, 511-Mounting hole, 52-Probe; 6-Adjusting components; 7-Connecting components.

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0031] See Figures 1 to 4 The vibration detector provided in this embodiment includes a detection circuit (not shown in the figure), a base 1, a first mounting base 2, a second mounting base 3, a sphere 4, and a probe assembly 5. The base 1, the first mounting base 2, and the second mounting base 3 are arranged sequentially from bottom to top and are fixedly connected by fasteners, preferably bolts or screws.

[0032] The detection circuit is connected to an alarm module (not shown in the figure), which can emit an audible alarm and / or a visual alarm. The alarm module can be a buzzer or a warning light.

[0033] The base 1 has an upward-opening first groove 11, and the sphere 4 is movably placed on the bottom of the first groove 11. The sphere 4 is made of conductive metal material.

[0034] A first mounting base 2 is disposed on a base 1. A sleeve portion 21 protrudes downward from the bottom wall of the first mounting base 2. An open-ended movable cavity 211 is formed on the inner side of the sleeve portion 21, the width of which is slightly larger than the diameter of the sphere 4. The sleeve portion 21 extends into a first groove 11, and the movable cavity 211 communicates with the first groove 11. The sleeve portion 21 is fitted onto the outer side of the sphere 4, meaning that the sphere 4 is at least partially embedded in the movable cavity 211 and can move up and down. Two through holes 22 are formed vertically through the first mounting base 2, both of which communicate with the upper part of the movable cavity 211.

[0035] The probe assembly 5 includes an adjustment base 51 and two probes 52. The upper ends of the two probes 52 are respectively connected to the two sides of the adjustment base 51, the middle parts of the two probes 52 are respectively inserted into the corresponding first through holes 22, and the lower ends of the two probes 52 extend into the movable cavity 211 and are located directly above the sphere 4. The adjustment base 51 is made of insulating material, and the probes 52 are made of conductive metal material.

[0036] Each probe 52 has a contact portion at its lower end for contacting the sphere 4. In the extending direction of the movable cavity 211, the two contact portions are equidistant from the sphere 4, and in the direction perpendicular to the extending direction of the movable cavity 211, the two contact portions are equidistant from the center line of the movable cavity 211, ensuring that the sphere 4 can contact both probes 52 simultaneously.

[0037] In one embodiment, the alarm module and the two probes 52 are both connected in the same loop of the detection circuit, and the two probes 52 are located on both sides of the open circuit of the detection circuit.

[0038] When the base 1 vibrates, it causes the ball 4 to vibrate. When the ball 4 moves upward and simultaneously contacts the two probes 52, the detection circuit is powered on and the alarm module sounds an alarm. When the ball 4 separates from the probes 52, the detection circuit is disconnected and the alarm module stops sounding an alarm until the ball 4 contacts the probes 52 again.

[0039] In another embodiment, the detection circuit further includes a control module, with two probes 52 electrically connected to the control module, and the control module also electrically connected to an alarm module.

[0040] When the base 1 vibrates, it causes the ball 4 to vibrate. When the ball 4 moves upward and simultaneously contacts the two probes 52, the control module controls the alarm module to issue an alarm. At this time, even if the ball 4 separates from the probes 52, the alarm module can continue to issue an alarm.

[0041] To facilitate adjustment of the height of probe 52, an adjustment member 6 is provided on the second mounting base 3 in this embodiment. One end of the adjustment member 6 is connected to the adjustment base 51. The adjustment member 6 can adjust the height of the adjustment base 51, thereby adjusting the distance between probe 52 and sphere 4 to adjust the vibration detection sensitivity. Specifically: The adjustment direction of probe 52 is parallel to the extension direction of movable cavity 211, and probe 52 is clearance-fitted with first perforation 22.

[0042] The second mounting base 3 has a second groove 31 and a second through hole 32. The second groove 31 is recessed into the bottom wall of the second mounting base 3, and the second through hole 32 extends downward from the top wall of the second mounting base 3 and communicates with the second groove 31. The adjusting member 6 is inserted into the second through hole 32 and is clearance-fitted with the second through hole 32.

[0043] An adjusting seat 51 is disposed within the second groove 31, and the adjusting seat 51 has a mounting hole 511, through which the adjusting member 6 is connected. Preferably, the adjusting member 6 is a screw rod, and the mounting hole 511 is a screw hole, with the adjusting member 6 threadedly connected to the mounting hole 511. By rotating the adjusting member 6 in both directions, the adjusting seat 51 and the probe 52 can be moved up and down.

[0044] The top wall of the second mounting base 3 is provided with a third groove 33; the two ends of the adjusting member 6 are respectively provided with a head and a connecting part. The head is located in the third groove 33 and abuts against the bottom of the third groove 33 to restrict the downward movement of the adjusting member 6. The middle part of the adjusting member 6 is threadedly connected to the adjusting seat 51, and the connecting part is rotatably connected to the first mounting base 2. The first mounting base 2 is provided with a limiting structure (not shown in the figure) that can prevent the connecting part from disengaging from the first mounting base 2. The limiting structure includes an inverted T-shaped groove and a nut. The inverted T-shaped groove is provided on the first mounting base 2, and the nut is provided in the inverted T-shaped groove; the connecting part is inserted into the inverted T-shaped groove and threadedly connected to the nut. The nut can rotate with the adjusting member 6, but cannot disengage upward from the inverted T-shaped groove.

[0045] To facilitate the connection between the vibration detector of this embodiment and the device under test, the base 1 of this embodiment is provided with a connecting component 7 for connecting to the device under test. The connecting component 7 can be disposed on the bottom wall and / or side wall of the base 1, without limitation. The bottom wall and / or side wall of the base 1 are provided with a placement groove 12 for mounting the connecting component 7, so that the surface of the connecting component 7 is flush with the bottom wall and / or side wall of the base 1.

[0046] The connecting component 7 is at least one of the following: a permanent magnet, an electromagnet, or an adhesive patch. In this embodiment, a permanent magnet is preferred.

[0047] In summary, this utility model, by arranging the sphere 4 and probe 52 correspondingly inside the movable cavity 211, causes the sphere 4 to vibrate up and down when the equipment vibrates abnormally, making the sphere 4 contact the probe 52, activating the detection circuit, and triggering the alarm module to issue an alarm, thus reminding staff to repair the equipment in time. This has the advantage of high reliability. Furthermore, by setting the adjusting component 6 to adjust the distance between the probe 52 and the sphere 4, the trigger sensitivity can be adjusted, which has the advantages of simple structure and convenient operation.

[0048] Finally, it should be emphasized that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vibration detector, characterized in that, include: A detection circuit, wherein an alarm module is connected to the detection circuit; A base, on which a sphere is movably disposed, the sphere being made of a conductive material; A first mounting base is disposed on the base. The first mounting base is provided with a movable cavity and a probe assembly. The probe assembly includes an adjustment base and two probes. Both probes are electrically connected to the detection circuit. One end of each of the two probes extends into the movable cavity. The sphere is at least partially embedded in the movable cavity and can move up and down. When the sphere moves upward, it can simultaneously connect to the two probes, thereby turning on the detection circuit and triggering the alarm module to issue an alarm. A second mounting base is disposed on the side of the first mounting base facing away from the base. An adjustment component is provided on the second mounting base, one end of which is connected to the adjustment base. The adjustment component can adjust the height of the adjustment base, thereby adjusting the distance between the probe and the sphere.

2. The vibration detector according to claim 1, characterized in that: The extension direction of the movable cavity is parallel to the adjustment direction of the probe, and each probe has a contact portion at its end. In the extending direction of the active cavity, the two contact portions are equidistant from the sphere, and in the direction perpendicular to the extending direction of the active cavity, the two contact portions are equidistant from the center line of the active cavity.

3. The vibration detector according to claim 1, characterized in that: The base has an upward-opening first groove, which communicates with the movable cavity, and the sphere is disposed in the first groove. The first mounting base has a sleeve portion that protrudes downwards. The sleeve portion extends into the first groove and is fitted onto the outside of the sphere. The movable cavity is disposed inside the sleeve portion, and the width of the movable cavity is greater than the diameter of the sphere.

4. The vibration detector according to claim 1, characterized in that: The first mounting base has two through holes extending vertically, and both through holes communicate with the upper part of the movable cavity; The two probes are respectively inserted into the corresponding first perforation, and the probes are fitted with the first perforation with a gap.

5. The vibration detector according to claim 1, characterized in that: The second mounting base has a second groove and a second through hole, the second through hole being located above the second groove and communicating with the second groove; The adjusting seat is disposed in the second groove, and the adjusting seat has a mounting hole. The adjusting member passes through the second through hole and is connected to the mounting hole.

6. The vibration detector according to claim 5, characterized in that: The adjusting member is clearance-fitted with the second through hole, and the adjusting member is threadedly connected to the mounting hole.

7. The vibration detector according to claim 6, characterized in that: The adjusting member has a head and a connecting part at both ends. The head is connected to the first mounting base. The middle part of the adjusting member is threaded to the adjusting base. The connecting part is rotatably connected to the first mounting base. The first mounting base is provided with a limiting structure that can prevent the connecting part from disengaging.

8. The vibration detector according to any one of claims 1 to 7, characterized in that: The base is provided with a connecting component for connecting to the device to be tested.

9. The vibration detector according to claim 8, characterized in that: The connecting component is at least one of the following: a permanent magnet, an electromagnet, or an adhesive patch.

10. The vibration detector according to any one of claims 1 to 7, characterized in that: The alarm module can emit audible alarms and / or visual alarms.

Images