Spacing verification device
By designing a spacing verification device including elastic contacts and indicator lights, the problem of inconvenient measurement of the spacing between the carbon brush and the slip ring is solved and high-precision spacing verification is achieved, which is suitable for dark environment applications.
Patent Information
- Application Number
- CN202421194368.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-28
AI Technical Summary
In the prior art, the measurement of the spacing between the carbon brush and the slip ring is inconvenient and the error is large, especially in the dim environment, which makes it difficult to accurately measure.
A spacing verification device is provided, including a substrate, a first elastic contact, a second elastic contact, an indicator light and a power supply assembly. Through the elastic deformation of the elastic contact and the opening and closing of the indicator light, accurate verification of the distance between the carbon brush and the slip ring is achieved.
The device is easy to operate and has high calibration accuracy. It can accurately determine whether the distance between the carbon brush and the slip ring is within the appropriate range in a dark environment, which improves maintenance efficiency.
Smart Images
Figure CN222505253U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of calibration of the distance between a carbon brush and a slip ring, and in particular, to a distance calibration device. Background Art
[0002] Carbon brushes and slip rings are both key components to ensure the normal operation of the generator set. Carbon brushes are installed on the brush holder, and their main function is to transfer energy or signals, especially between the fixed part and the rotating part of rotating machinery such as motors or generators. The slip ring (also called conductive ring, collector ring, collector ring, collector ring, etc.) is installed on the generator rotor, and conducts the current in the rotating rotor to the stationary circuit by contact sliding, so as to establish an electrical connection between the rotating generator rotor and the fixed generator stator to achieve energy transmission.
[0003] In actual use, the setting of the slip ring and the carbon brush should keep the axis of the slip ring concentric with the axis of the brush holder, and make each (group) of carbon brushes perpendicular to the cross section of the slip ring, and the distance between the lower edge of the brush holder and the surface of the slip ring should be kept within 2 to 4 mm. If the distance between the lower edge of the brush holder and the surface of the slip ring is too small, the brush holder will rub the slip ring due to the increase in the swing during the operation of the unit, which will cause damage to the slip ring surface; if the distance between the lower edge of the brush holder and the surface of the slip ring is too large, it is easy for the carbon brush to shake during operation and cause damage. In severe cases, it may cause the carbon brush to ignite, or even cause a ring fire, seriously endangering the safe and stable operation of the equipment. Therefore, it is necessary to regularly measure and adjust the distance between the carbon brush and the slip ring.
[0004] In the prior art, the distance between the carbon brush and the slip ring is mainly measured by manually observing a feeler gauge. However, since the carbon brush and the slip ring are installed inside the hood, the environment is dim and the distance between the slip ring and the carbon brush is small, it is difficult to accurately measure the distance between the carbon brush and the slip ring using a feeler gauge, which makes the measurement inconvenient and the measurement error large. Utility Model Content
[0005] The purpose of the present disclosure is to provide a device for calibrating the distance between a carbon brush and a slip ring, which is easy to operate and has high calibration accuracy.
[0006] In order to achieve the above-mentioned purpose, the present disclosure provides a spacing verification device, which includes a substrate, a first elastic contact, a second elastic contact, an indicator light and a power supply component, wherein the substrate has a first side surface and a second side surface arranged opposite to each other in a first direction; one end of the first elastic contact is connected to the first side surface, and the other end is provided with an elastic deformation part, the elastic deformation part moves along the first direction under the action of an external force and the elastic deformation part can be elastically reset by itself after the external force is removed, the second elastic contact part is arranged on the first side surface and can be extended and retracted along the first direction, and the projection of the second elastic contact part in the first direction is located within the projection of the elastic deformation part in the first direction, the indicator light, the power supply component, the second elastic contact part and the elastic deformation part are electrically connected end to end in sequence to form a closed loop, wherein, when the elastic deformation part moves along the first direction to contact with the second elastic contact part, the distance d between the side of the elastic deformation part away from the first side surface and the second side surface is greater than 2 mm; when the elastic deformation part moves along the first direction to disengage from the second elastic contact part, the distance d between the side of the elastic deformation part away from the first side surface and the second side surface is greater than 4 mm.
[0007] Optionally, the free length of the second elastic contact piece is 2.9 mm and the maximum compression amount is 2 mm.
[0008] Optionally, the second elastic contact piece is a contact spring.
[0009] Optionally, the second elastic contact member includes an elastic portion and a metal contact, wherein one end of the elastic portion in the first direction is connected to the first side surface, and the other end is provided with the metal contact.
[0010] Optionally, the elastic portion is configured as a spring, and a central axis of the spring is parallel to the first direction.
[0011] Optionally, the elastic deformation portion is a metal sheet structure, and the elastic deformation portion extends along a second direction parallel to the first side surface, and the first elastic contact piece includes a connecting portion, one end of the connecting portion is connected to the first side surface, and the other end is connected to or integrally formed with the elastic deformation portion, wherein the second direction is orthogonal to the first direction.
[0012] Optionally, the first elastic contact piece further includes a bending portion, which intersects with the elastic deformation portion, and the bending portion extends from the elastic deformation portion toward the first side surface to jointly form a chamber for accommodating at least a portion of the second elastic contact piece with the connecting portion and the elastic deformation portion.
[0013] Optionally, the thickness of the elastic deformation portion is 0.1-0.6 mm.
[0014] Optionally, the substrate is constructed as a ceramic plate structure, and the thickness of the substrate is 0.5-1 mm.
[0015] Optionally, the power supply component is mounted on an end of the substrate away from the second elastic contact piece in a second direction, and the second direction is orthogonal to the first direction.
[0016] Through the above technical solution, when the spacing check device provided by the present disclosure is used to check the spacing between the carbon brush and the slip ring, first, the spacing check device is inserted between the brush holder of the carbon brush and the slip ring. If the spacing between the brush holder and the slip ring is less than 2mm, the spacing check device cannot be inserted between the brush holder and the slip ring. At this time, the operator can directly obtain the information that the spacing between the carbon brush and the slip ring is too small, so that it is convenient for the operator to increase the spacing between the carbon brush and the slip ring. If the spacing between the brush holder and the slip ring is greater than 4mm, the elastic deformation part of the first elastic contact member is out of contact with the second elastic contact member, that is, the closed loop defined by the indicator light, the power supply component, the second elastic contact member and the elastic deformation part is disconnected, and the indicator light is turned off. At this time, the operator can directly obtain the information that the spacing between the carbon brush and the slip ring is too large, so that it is convenient for the operator to reduce the spacing between the carbon brush and the slip ring. When the distance between the brush holder and the slip ring is between 2mm and 4mm, the elastic deformation part of the first elastic contact piece can be elastically deformed under the action of external force, that is, the elastic deformation part can move along the first direction to contact the second elastic contact piece. At this time, the closed loop defined by the indicator light, the power supply assembly, the second elastic contact piece and the elastic deformation part is turned on, and the indicator light is on. At this time, the operator can directly obtain the information that the distance between the carbon brush and the slip ring is within the qualified range. Compared with the method of using a traditional feeler gauge to measure the distance between the carbon brush and the slip ring, the distance between the carbon brush and the slip ring is checked by the distance calibration device provided by the present invention, which is not only easy to operate, but also more accurate in the accuracy control of the calibration range. At the same time, it is suitable for scenes with darker working environments, which is conducive to improving the maintenance efficiency of slip rings or carbon brushes, and is convenient for wide application.
[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0019] Figure 1 is a schematic structural diagram of a device for calibrating the distance between a carbon brush and a slip ring provided according to a specific embodiment of the present disclosure;
[0020] Figure 2It is a circuit diagram of a device for calibrating the distance between a carbon brush and a slip ring provided according to a specific embodiment of the present disclosure.
[0021] Description of Reference Numerals
[0022] 1-substrate; 11-first side; 12-second side; 2-first elastic contact piece; 21-connecting portion; 22-elastic deformation portion; 23-bending portion; 24-chamber; 3-second elastic contact piece; 4-indicator light; 5-power supply assembly. DETAILED DESCRIPTION
[0023] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.
[0024] In the present disclosure, unless otherwise specified, the directional words "inside" and "outside" used refer to the inside and outside relative to the outline of the component itself; in addition, the use of words such as "first" and "second" is intended to distinguish different components and does not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.
[0025] According to a specific embodiment of the present disclosure, a spacing calibration device is provided. Figure 1 An embodiment of the spacing checking device is shown. Figure 1 As shown, the spacing calibration device may include a substrate 1, a first elastic contact 2, a second elastic contact 3, an indicator light 4 and a power supply assembly 5, wherein the substrate 1 has a first side surface 11 and a second side surface 12 arranged opposite to each other in the first direction; one end of the first elastic contact 2 is connected to the first side surface 11, and the other end is provided with an elastic deformation portion 22, the elastic deformation portion 22 moves along the first direction under the action of an external force and the elastic deformation portion 22 can be elastically reset by itself after the external force is removed, the second elastic contact 3 is arranged on the first side surface 11 and can be extended and retracted along the first direction, and the projection of the second elastic contact 3 in the first direction is located within the projection of the elastic deformation portion 22 in the first direction, the indicator light 4, the power supply assembly 5, the second elastic contact 3 and the elastic deformation portion 22 are electrically connected end to end in sequence to form a closed loop (reference Figure 2As shown, the second elastic contact piece 3 and the elastic deformation portion 22 together form a closed-loop switch), wherein when the elastic deformation portion 22 moves along the first direction to contact the second elastic contact piece 3, the distance d between the side of the elastic deformation portion 22 away from the first side surface 11 and the second side surface 12 is greater than 2 mm; when the elastic deformation portion 22 moves along the first direction to break away from the second elastic contact piece 3, the distance d between the side of the elastic deformation portion 22 away from the first side surface 11 and the second side surface 12 is greater than 4 mm.
[0026] Through the above technical solution, when the spacing check device provided by the present disclosure is used to check the spacing between the carbon brush and the slip ring, first, the spacing check device is inserted between the brush holder of the carbon brush and the slip ring. If the spacing between the brush holder and the slip ring is less than 2mm, the spacing check device cannot be inserted between the brush holder and the slip ring. At this time, the operator can directly obtain the information that the spacing between the carbon brush and the slip ring is too small, so that it is convenient for the operator to increase the spacing between the carbon brush and the slip ring. If the spacing between the brush holder and the slip ring is greater than 4mm, the elastic deformation part 22 of the first elastic contact member 2 is out of contact with the second elastic contact member 3, that is, the closed loop defined by the indicator light 4, the power supply component 5, the second elastic contact member 3 and the elastic deformation part 22 is disconnected, and the indicator light 4 is turned off. At this time, the operator can directly obtain the information that the spacing between the carbon brush and the slip ring is too large, so that it is convenient for the operator to reduce the spacing between the carbon brush and the slip ring. When the distance between the brush holder and the slip ring is between 2mm and 4mm (including 2mm and 4mm), the elastic deformation part 22 of the first elastic contact 2 can be elastically deformed under the action of external force (extrusion force), that is, the elastic deformation part 22 can move along the first direction to contact with the second elastic contact 3. At this time, the closed loop defined by the indicator light 4, the power supply component 5, the second elastic contact 3 and the elastic deformation part 22 is turned on, and the indicator light 4 is on. At this time, the operator can directly obtain the information that the distance between the carbon brush and the slip ring is within the qualified range (2mm to 4mm). Compared with the method of using a traditional feeler gauge to measure the distance between the carbon brush and the slip ring, the distance between the carbon brush and the slip ring is checked by the distance calibration device provided by the present invention, which is not only easy to operate, but also the accuracy of the calibration range is more accurately controlled. At the same time, it is suitable for scenes with darker working environments, which is conducive to improving the maintenance efficiency of slip rings or carbon brushes, and is convenient for wide application.
[0027] The projection of the second elastic contact member 3 in the first direction is located within the projection of the elastic deformation portion 22 in the first direction, which can ensure that the elastic deformation portion 22 can contact the second elastic contact member 3 when moving toward the second elastic contact member 3 along the first direction, thereby ensuring the reliability of the spacing calibration device. Figure 1 As shown, the first direction is Figure 1In addition, since the indicator light 4, the power supply assembly 5, the second elastic contact member 3 and the elastic deformation portion 22 are electrically connected end to end in sequence to form a closed loop, the specific structure and working principle are well known to those skilled in the art, and will not be described in detail in this disclosure.
[0028] In the specific implementation manner provided in the present disclosure, in order to meet the requirement of calibrating the spacing between the carbon brush and the slip ring, the parameters of the second elastic contact member 3 can be selectively designed. Figure 1 As shown, the free length of the second elastic contact member 3 is 2.9mm, and the maximum compression is 2mm. Among them, the free length of the second elastic contact member 3 should be understood as the length of the second elastic contact member 3 without the action of external force, that is, 2.9mm, and the maximum compression of 2mm should be understood as the length of the second elastic contact member 3 in the maximum compression state. The maximum compression is 2mm, that is, after the free length (2.9mm) of the second elastic contact member 3 is compressed by 2mm, the length of the second elastic contact member 3 is 0.9mm, and at this time, the second elastic contact member 3 is in the maximum compression state. Since in this application, the second elastic contact member 3 only has two states of compression and free length, therefore, this application does not impose any restrictions on the maximum stretching amount of the second elastic contact member 3, and those skilled in the art can selectively design according to actual needs.
[0029] In the embodiment provided in the present disclosure, since the spacing between the carbon brush and the slip ring is required to be between 2mm and 4mm, and the length of the second elastic contact member 3 is between 0.9mm and 2.9mm, it should be understood that the sum of the thickness of the elastic deformation portion 22 of the second elastic contact member 3 and the thickness of the substrate 1 is 1.1mm. Among them, the thickness of the elastic deformation portion 22 and the thickness of the substrate 1 can be designed separately. Optionally, in some embodiments of the present disclosure, the thickness of the elastic deformation portion 22 is 0.1-0.6mm; the thickness of the substrate 1 is 0.5-1mm, and the sum of the thickness of the elastic deformation portion 22 and the thickness of the substrate 1 is 1.1mm. In some embodiments, the thickness of the elastic deformation portion 22 can be 0.1mm, and correspondingly, the thickness of the substrate 1 is 1mm. In other embodiments, the thickness of the elastic deformation portion 22 can be 0.6mm, and correspondingly, the thickness of the substrate 1 is 0.5mm. In some other embodiments, the thickness of the elastic deformation portion 22 is 0.3mm, and the thickness of the substrate 1 is 0.8mm. In this regard, the present disclosure does not impose any limitation, and those skilled in the art can selectively design according to actual needs.
[0030] In the specific embodiment provided in the present disclosure, the second elastic contact member 3 can be constructed in any suitable manner. Figure 1As shown, the second elastic contact member 3 can be constructed as a contact spring. The structure and working principle of the contact spring are well known to those skilled in the art, and will not be elaborated in detail in this disclosure.
[0031] Alternatively, the second elastic contact 3 may include an elastic portion and a metal contact (not shown in the figure), one end of the elastic portion in the first direction is connected to the first side surface 11, and the other end is provided with a metal contact, the elastic deformation portion 22 contacts the metal contact to turn on the closed loop formed in series by the indicator light 4, the power supply component 5, the second elastic contact 3 and the elastic deformation portion 22, and the elastic deformation portion 22 is disconnected from the metal contact to disconnect the closed loop formed in series by the indicator light 4, the power supply component 5, the second elastic contact 3 and the elastic deformation portion 22. Among them, the elastic portion can be constructed as a spring, and the central axis of the spring is parallel to the first direction. In other embodiments of the present disclosure, the second elastic contact 3 can also be constructed in other ways, and the present disclosure does not impose any restrictions on this.
[0032] In the specific embodiments provided in the present disclosure, reference is made to Figure 1 As shown, the elastic deformation part 22 is a metal sheet structure, and the elastic deformation part 22 extends along a second direction parallel to the first side surface 11, and the first elastic contact member 2 includes a connecting part 21, one end of the connecting part 21 is connected to the first side surface 11, and the other end is connected to or integrally formed with the elastic deformation part 22, wherein the second direction is orthogonal to the first direction. The elastic deformation part 22 is a metal sheet structure, which facilitates the connection and disconnection of the closed loop on the one hand, and facilitates the elastic deformation of the elastic deformation part 22 on the other hand. Among them, the connecting part 21 is used to connect the substrate 1 and the elastic deformation part 22, and the connecting part 21 can be integrally formed with the elastic deformation part 22, or can be separately provided, and the present disclosure does not impose any restrictions on this.
[0033] Among them, reference Figure 1 As shown, the first elastic contact member 2 further includes a bent portion 23, the bent portion 23 intersects with the elastic deformation portion 22, and the bent portion 23 extends from the elastic deformation portion 22 toward the first side surface 11, so as to enclose, together with the connecting portion 21 and the elastic deformation portion 22, a chamber 24 for accommodating at least a portion of the second elastic contact member 3. The arrangement of the bent portion 23 and the chamber 24 facilitates the prevention of the second elastic contact member 3 from deviating from the first direction during the telescopic process, that is, it facilitates the telescopic function of the second elastic contact member 3 to a certain extent, and prevents the second elastic contact member 3 from deviating from the second direction during the telescopic process to affect the contact with the elastic deformation portion 22, and has high reliability.
[0034] In the specific embodiment provided in the present disclosure, the substrate 1 can be constructed in any suitable manner. The substrate 1 is constructed as a ceramic plate-like structure with high strength and hardness, high wear resistance, high corrosion resistance, and long service life.
[0035] In the specific embodiments provided in the present disclosure, reference is made to Figure 1 As shown, the power supply component 5 is installed at one end of the substrate 1 away from the second elastic contact piece 3 in the second direction, and the second direction is orthogonal to the first direction. The setting of the power supply component 5 is convenient for providing power to the indicator light 4 on the one hand, and provides an operating part that is easy to operate for the operator on the other hand.
[0036] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0038] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A spacing calibration device, characterized in that: The spacing calibration device comprises a substrate, a first elastic contact, a second elastic contact, an indicator light and a power supply assembly, wherein the substrate has a first side surface and a second side surface arranged opposite to each other in a first direction; one end of the first elastic contact is connected to the first side surface, and the other end is provided with an elastic deformation part, the elastic deformation part moves along the first direction under the action of an external force and the elastic deformation part can be reset by its own elasticity after the external force is removed, the second elastic contact part is arranged on the first side surface and can be extended and retracted along the first direction, and the projection of the second elastic contact part in the first direction is located within the projection of the elastic deformation part in the first direction, the indicator light, the power supply assembly, the second elastic contact part and the elastic deformation part are electrically connected end to end in sequence to form a closed loop, Wherein, when the elastic deformation portion moves along the first direction to contact the second elastic contact member, the distance d between the side of the elastic deformation portion away from the first side surface and the second side surface is greater than 2 mm; When the elastic deformation portion moves along the first direction to be out of contact with the second elastic contact piece, a distance d between a side of the elastic deformation portion away from the first side surface and the second side surface is greater than 4 mm.
2. The spacing calibration device according to claim 1, characterized in that: The free length of the second elastic contact piece is 2.9 mm, and the maximum compression amount is 2 mm.
3. The spacing calibration device according to claim 2, characterized in that: The second elastic contact piece is a contact spring.
4. The spacing calibration device according to claim 2, characterized in that: The second elastic contact member includes an elastic portion and a metal contact point. One end of the elastic portion in the first direction is connected to the first side surface, and the other end is provided with the metal contact point.
5. The spacing calibration device according to claim 4, characterized in that: The elastic portion is configured as a spring, and a central axis of the spring is parallel to the first direction.
6. The spacing calibration device according to claim 1, characterized in that: The elastic deformation portion is a metal sheet structure, and the elastic deformation portion extends along a second direction parallel to the first side surface. The first elastic contact piece includes a connecting portion, one end of the connecting portion is connected to the first side surface, and the other end is connected to or integrally formed with the elastic deformation portion, wherein the second direction is orthogonal to the first direction.
7. The spacing calibration device according to claim 6, characterized in that: The first elastic contact piece further includes a bending portion, which intersects with the elastic deformation portion and extends from the elastic deformation portion toward the first side surface to form a chamber together with the connecting portion and the elastic deformation portion for accommodating at least a portion of the second elastic contact piece.
8. The spacing calibration device according to claim 1, characterized in that: The thickness of the elastic deformation portion is 0.1-0.6 mm.
9. The spacing calibration device according to claim 1, characterized in that: The substrate is constructed as a ceramic plate structure, and the thickness of the substrate is 0.5-1 mm.
10. The spacing calibration device according to any one of claims 1 to 9, characterized in that: The power supply assembly is mounted on an end of the substrate away from the second elastic contact piece in a second direction, and the second direction is orthogonal to the first direction.