Three-phase static electricity detecting mechanism suitable for electric power inspection vehicle
By combining a six-degree-of-freedom robotic arm with a three-phase elastic high-voltage contact mechanism, the problems of insufficient rigidity and unstable contact when power inspection vehicles inspect high-voltage three-phase contacts are solved. This achieves full contact and insulation of the contacts over long distances, ensuring the safety and accuracy of the inspection.
Patent Information
- Application Number
- CN202520559185.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The existing robotic arms of power inspection vehicles have problems with insufficient rigidity and unstable contact when inspecting high-voltage three-phase contacts, especially during long-distance extension and retraction, it is difficult to ensure sufficient contact and insulation of the contacts.
Employing a six-degree-of-freedom robotic arm, an AC phase adjustment mechanism, and a three-phase elastic high-voltage contact mechanism, combined with a guide seat, a spacing adjustment drive motor, a bidirectional threaded drive screw, and elastic components, the system achieves precise adjustment and stable contact of the three-phase contacts, and uses a positioning laser for ranging and positioning.
It achieves full contact and stability of the contacts over a long extension distance, ensuring high-voltage insulation and measurement accuracy, and avoiding mechanical damage to the robotic arm.
Smart Images
Figure CN224399426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power inspection equipment technology, specifically a three-phase voltage testing mechanism suitable for power inspection vehicles. Background Technology
[0002] In addition to reading data at substations, power line inspection vehicles sometimes need to inspect or monitor the insulation of high-voltage three-phase contacts. For safety reasons, the robotic arm must not come into contact with the high-voltage equipment when the three-phase contacts are in contact, as this could be fatal to the robot. Therefore, sufficient feedback is needed regarding the contact distance and whether contact has occurred, and the contact body must have sufficient slenderness, overall elastic rigidity, and adequate flexibility during contact.
[0003] Contact flexibility is typically achieved using springs. To maintain a sufficient distance between the insulator and the high-voltage contact, the contact manipulator needs to be sufficiently slender and made of high-voltage insulating material. In three-phase contact, due to the use of springs and the slender manipulator, using mechanical proximity switches or electromagnetic switches at the end poses a risk of insufficient rigidity. Utility Model Content
[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.
[0005] Therefore, the purpose of this utility model is to provide a three-phase voltage testing mechanism suitable for power inspection vehicles, which ensures sufficient contact and contact stability of the contacts under long extension distance.
[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0007] A three-phase voltage detector suitable for power inspection vehicles, comprising:
[0008] A six-degree-of-freedom robotic arm;
[0009] An AC phase adjustment mechanism is installed at the free end of the six-degree-of-freedom robotic arm;
[0010] The three-phase flexible high-voltage contact mechanism is installed on the AC phase adjustment mechanism. The AC phase adjustment mechanism adjusts the spacing of the three-phase flexible high-voltage contact mechanism according to the distance between the three-phase contacts of the substation, so that the three-phase flexible high-voltage contact mechanism abuts against the three-phase contacts of the substation.
[0011] As a preferred embodiment of the three-phase voltage testing mechanism applicable to power inspection vehicles described in this utility model, the AC phase adjustment mechanism includes a guide seat, a spacing adjustment drive motor installed at one end of the guide seat, a bidirectional threaded drive screw coaxially connected to the output end of the spacing adjustment drive motor and extending through to the other end of the guide seat, a central mounting seat installed in the middle of the guide seat, and a first and second bearing slide connected to the bidirectional threaded drive screw and rotatably driven by the bidirectional threaded drive screw to move towards or relative to each other along the guide seat.
[0012] As a preferred embodiment of the three-phase voltage testing mechanism applicable to power inspection vehicles described in this utility model, the three-phase elastic high-voltage contact mechanism includes a B-phase elastic high-voltage contact mounted on the central mounting base of the AC phase adjustment mechanism, an A-phase elastic high-voltage contact mounted on the first bearing slide, and a C-phase elastic high-voltage contact mounted on the second bearing slide.
[0013] As a preferred embodiment of the three-phase voltage testing mechanism applicable to power inspection vehicles described in this utility model, the A-phase elastic high-voltage contact includes a metal rod with a guide groove at the head end, an elastic component disposed in the guide groove, a contact with one end located in the guide groove and connected to the end of the elastic component, and a high-voltage insulating sleeve sleeved on the metal rod.
[0014] The structure of the B-phase elastic high-voltage contact and the C-phase elastic high-voltage contact is the same as that of the A-phase elastic high-voltage contact.
[0015] In a preferred embodiment of the three-phase voltage testing mechanism for power inspection vehicles described in this utility model, the elastic component is a spring.
[0016] As a preferred embodiment of the three-phase voltage testing mechanism applicable to power inspection vehicles described in this utility model, it further includes a positioning laser disposed on the central mounting base, the first bearing slide, and the second bearing slide.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The three-phase elastic high-voltage contact mechanism provided by this utility model has sufficient slenderness, overall telescopic rigidity and sufficient flexibility during contact. On the one hand, it realizes full contact feedback of the three phases, and on the other hand, it realizes full insulation between the high voltage and the measuring body when feedback full contact information, thereby ensuring the full contact and contact stability of the contact under a long telescopic distance. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0019] Figure 1 This is a schematic diagram of the overall structure of a three-phase voltage testing mechanism applicable to a power inspection vehicle according to the present invention;
[0020] Figure 2 This is a schematic diagram of the AC phase adjustment mechanism of a three-phase voltage testing mechanism applicable to a power inspection vehicle according to the present invention.
[0021] Figure 3 This is a schematic diagram of the structure of the A-phase elastic high-voltage contact of a three-phase voltage testing mechanism applicable to power inspection vehicles according to this utility model. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0025] This invention provides a three-phase voltage testing mechanism suitable for power inspection vehicles, ensuring sufficient contact and contact stability of the contacts even over a long extension distance.
[0026] Figures 1-3 The diagram shown is a structural schematic of one embodiment of a three-phase voltage testing mechanism applicable to a power inspection vehicle according to this utility model. Please refer to [link / reference]. Figures 1-3 This embodiment provides a three-phase voltage testing mechanism suitable for power inspection vehicles, which includes a six-degree-of-freedom robotic arm 100, an AC phase adjustment mechanism 200, a three-phase elastic high-voltage contact mechanism 300, and a positioning laser 400.
[0027] The six-degree-of-freedom robotic arm 100 is fixedly installed on the power inspection vehicle. The three-phase power inspection mechanism of the power inspection vehicle is displaced as a whole by the power inspection vehicle body. When the six-degree-of-freedom robotic arm 100 is in action, it adjusts the horizontal angle and vertical height of the three-phase elastic high-voltage contact mechanism 300.
[0028] The AC phase adjustment mechanism 200 is installed at the free end of the six-degree-of-freedom robotic arm 100 and is used to adjust the spacing of the three-phase elastic high-voltage contact mechanism 300. In this embodiment, the AC phase adjustment mechanism 200 includes a guide seat 210, a spacing adjustment drive motor 220 installed at one end of the guide seat 210, a bidirectional threaded drive screw 230 coaxially connected to the output end of the spacing adjustment drive motor 220 and extending through to the other end of the guide seat 210, a central mounting seat 240 installed in the middle of the guide seat 210, a first bearing slide 250 and a second bearing slide 260 connected to the bidirectional threaded drive screw 230 and rotatably driven by the bidirectional threaded drive screw 230 to move towards or relative to each other along the guide seat 210.
[0029] The three-phase flexible high-voltage contact mechanism 300 is installed on the AC phase adjustment mechanism 200. The AC phase adjustment mechanism 200 adjusts the spacing of the three-phase flexible high-voltage contact mechanism 300 according to the distance between the three-phase contacts of the substation, so that the three-phase flexible high-voltage contact mechanism 300 abuts against the three-phase contacts of the substation. Specifically, in this embodiment, the three-phase flexible high-voltage contact mechanism 300 includes a B-phase flexible high-voltage contact 310 installed on the middle mounting base 240 of the AC phase adjustment mechanism 200, an A-phase flexible high-voltage contact 320 installed on the first bearing slide 250, and a second bearing slide. The C-phase elastic high-voltage contact 330 and the A-phase elastic high-voltage contact 320 on 260 include a metal rod 320a with a guide groove 320a-1 at the head end, an elastic component 320b disposed in the guide groove 320a-1, a contact 320c with one end located in the guide groove 320a-1 and connected to the end of the elastic component 320b, and a high-voltage insulating sleeve sleeved on the metal rod 320a. The B-phase elastic high-voltage contact 310 and the C-phase elastic high-voltage contact 330 have the same structure as the A-phase elastic high-voltage contact 320. Preferably, the elastic component 320b is a spring.
[0030] The positioning laser 400 is mounted on the central mounting base 240, the first bearing slide 250, and the second bearing slide 260, and is used for laser ranging and positioning.
[0031] Combination Figures 1-3 The specific operating steps of a three-phase voltage testing mechanism suitable for power inspection vehicles according to this embodiment are as follows:
[0032] S1. The power testing and inspection vehicle moves the three-phase power testing mechanism of this utility model, which is applicable to power inspection vehicles, to the detection pre-stop position.
[0033] S2. After the power testing and inspection vehicle arrives at the pre-stop position, the six-degree-of-freedom robotic arm 100 moves to adjust the angle and height of the three-phase elastic high-voltage contact mechanism 300 in order to adjust the overall approximate horizontal movement position of the three-phase elastic high-voltage contact mechanism 300.
[0034] S3. Then, the AC phase adjustment mechanism 200 adjusts the spacing of the three-phase elastic high-voltage contact mechanism 300, and the positioning laser 400 positions the A-phase elastic high-voltage contact 320, B-phase elastic high-voltage contact 310 and C-phase elastic high-voltage contact 330 of the three-phase elastic high-voltage contact mechanism 300 so that the distance between them corresponds one-to-one with the three-phase contact of the substation to be tested.
[0035] S4. Then, the three-phase elastic high-voltage contact mechanism 300 is slowly driven by the six-degree-of-freedom robotic arm 100 to approach the three-phase contact of the substation, so that the A-phase elastic high-voltage contact 320, B-phase elastic high-voltage contact 310 and C-phase elastic high-voltage contact 330 make contact with the three-phase contact of the substation to be tested one by one.
[0036] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A three-phase voltage testing mechanism suitable for power inspection vehicles, characterized in that, include: Six-degree-of-freedom robotic arm (100); AC phase adjustment mechanism (200) is installed at the free end of the six-degree-of-freedom robotic arm (100); The three-phase flexible high-voltage contact mechanism (300) is installed on the AC phase adjustment mechanism (200). The AC phase adjustment mechanism (200) adjusts the spacing of the three-phase flexible high-voltage contact mechanism (300) according to the distance between the three-phase contacts of the substation, so that the three-phase flexible high-voltage contact mechanism (300) abuts against the three-phase contacts of the substation.
2. A three-phase voltage testing mechanism suitable for power inspection vehicles according to claim 1, characterized in that, The AC phase adjustment mechanism (200) includes a guide seat (210), a spacing adjustment drive motor (220) installed at one end of the guide seat (210), a bidirectional threaded drive screw (230) coaxially connected to the output end of the spacing adjustment drive motor (220) and extending through to the other end of the guide seat (210), a central mounting seat (240) installed in the middle of the guide seat (210), a first bearing slide (250) connected to the bidirectional threaded drive screw (230) and capable of being rotated and driven by the bidirectional threaded drive screw (230) to move towards or relative to each other along the guide seat (210).
3. A three-phase voltage testing mechanism suitable for power inspection vehicles according to claim 2, characterized in that, The three-phase elastic high-voltage contact mechanism (300) includes a B-phase elastic high-voltage contact (310) mounted on the central mounting base (240) of the AC phase adjustment mechanism (200), an A-phase elastic high-voltage contact (320) mounted on the first bearing slide (250), and a C-phase elastic high-voltage contact (330) mounted on the second bearing slide (260).
4. A three-phase voltage testing mechanism suitable for power inspection vehicles according to claim 3, characterized in that, The A-phase elastic high-voltage contact (320) includes a metal rod (320a) with a guide groove (320a-1) at its head end, an elastic component (320b) disposed in the guide groove (320a-1), a contact (320c) with one end located in the guide groove (320a-1) and connected to the end of the elastic component (320b), and a high-voltage insulating sleeve sleeved on the metal rod (320a); The structure of the B-phase elastic high-voltage contact (310) and the C-phase elastic high-voltage contact (330) is the same as that of the A-phase elastic high-voltage contact (320).
5. A three-phase voltage testing mechanism suitable for power inspection vehicles according to claim 4, characterized in that, The elastic component (320b) is a spring.
6. A three-phase voltage testing mechanism suitable for power inspection vehicles according to claim 2, characterized in that, It also includes a positioning laser (400) disposed on the central mounting base (240), the first bearing slide (250), and the second bearing slide (260).