Ultrasonic positioning support for partial discharge of sleeve

Abstract

The utility model relates to the technical field of casing pipe detection accessories, in particular to a casing pipe partial discharge ultrasonic positioning support which comprises a positioning seat used for fixing a casing pipe, the section of the positioning seat is U-shaped, and a plurality of sets of adjustable positioning air cylinders which are evenly, equidistantly, linearly and obliquely downward are symmetrically arranged on the two sides of the positioning seat. The positioning seat with the U-shaped section is used for fixing the sleeve, and the multiple sets of adjustable positioning air cylinders can flexibly adjust the positioning force of the sleeve; the positioning rod coaxially connected with the end part of the piston rod of each group of adjustable positioning air cylinder and the anti-skid head with the replaceable end part enhance the positioning stability and applicability; the supporting seat with the arc-shaped top surface is mounted at the bottom in the positioning seat, and the non-slip mat is mounted on the top surface of the supporting seat, so that the sleeve can be better attached and prevented from sliding; the lifting cylinder is mounted on the bottom surface of the positioning seat, and the top of the lifting rod is coaxially connected to the center of the bottom surface of the positioning seat, so that the height position of the sleeve can be conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the technical field of sleeve testing accessories, specifically a sleeve partial discharge ultrasonic positioning bracket. Background Technology

[0002] In power systems, bushings, as key components connecting electrical equipment and transmission lines, directly affect the safety and stability of the power system. Partial discharge is one of the important characteristics of bushing insulation degradation, and accurate ultrasonic localization of partial discharge is of great significance for timely detection of potential bushing faults and prevention of major power accidents. With the development of power systems towards higher voltage and larger capacity, higher requirements are placed on the accuracy, reliability, and convenience of ultrasonic localization technology for bushing partial discharge. Existing ultrasonic localization technology for bushing partial discharge has many problems in practical applications: the positioning device lacks stability, making it difficult to accurately position bushings of different specifications; displacement or loosening easily occurs under complex operating conditions, affecting positioning accuracy; traditional positioning equipment has limited adjustment functions, failing to flexibly cope with various installation environments and bushing positions, resulting in low positioning efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a partial discharge ultrasonic positioning bracket for cannula, so as to solve the problems of poor stability and inconvenient adjustment of existing partial discharge ultrasonic positioning brackets mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] The ultrasonic positioning bracket for partial discharge of a sleeve includes a positioning seat with a U-shaped cross-section for ultrasonic positioning of partial discharge of the sleeve. Several sets of adjustable positioning cylinders with uniform and equidistant spacing in a straight line and inclined downward are symmetrically arranged on both sides of the positioning seat. A support seat with an arc-shaped top surface is installed at the bottom of the positioning seat. A lifting cylinder is installed on the bottom surface of the positioning seat.

[0006] Each adjustable positioning cylinder has a positioning rod coaxially connected to the piston rod end, and a replaceable anti-slip head is installed at the end of the positioning rod.

[0007] The top surface of the support is equipped with an anti-slip pad;

[0008] The top of the lifting rod of the lifting cylinder is coaxially connected to the center of the bottom surface of the positioning seat.

[0009] Preferably, the end of the positioning rod is coaxially provided with a insertion groove.

[0010] Preferably, the surface of the anti-slip head is arc-shaped, and the back of the anti-slip head is coaxially mounted with a plug post that is adapted to the cross-sectional size of the plug groove and has an interference fit.

[0011] Preferably, the anti-slip head is made of rubber and the height of the protrusion is 5-8mm.

[0012] Preferably, a base is coaxially mounted on the bottom surface of the lifting cylinder.

[0013] Preferably, the bottom of the lifting cylinder is rotatably connected to the base via a bearing.

[0014] Preferably, a servo geared motor is embedded in the center of the top surface of the base, and the rotating shaft of the servo geared motor is inserted into the bottom of the lifting cylinder.

[0015] Preferably, the openings at the bottom of the rotating shaft and the lifting cylinder are both square.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] 1. In this ultrasonic positioning bracket for partial discharge of the sleeve, a U-shaped positioning seat is used to fix the sleeve. Several sets of evenly spaced, linearly inclined, and downward-sloping adjustable positioning cylinders are symmetrically arranged on both sides, allowing for flexible adjustment of the positioning force on the sleeve. The piston rod of each adjustable positioning cylinder is coaxially connected to a positioning rod, and the end has a replaceable anti-slip head, enhancing the stability and applicability of the positioning. An arc-shaped support base with an upper surface and an anti-slip pad on its top surface are installed at the bottom of the positioning seat, ensuring better fit to the sleeve and preventing slippage. A lifting cylinder is installed on the bottom surface of the positioning seat, with the top of the lifting rod coaxially connected to the center of the bottom surface of the positioning seat, facilitating easy adjustment of the sleeve's height. These structures work together to enable the ultrasonic positioning bracket for partial discharge of the sleeve to accurately and stably position the sleeve, facilitating ultrasonic positioning operations for partial discharge.

[0018] 2. In this ultrasonic positioning bracket for partial discharge of the sleeve, the end of the positioning rod is coaxially provided with a plug groove, the surface of the anti-slip head is arc-shaped, and the back of the anti-slip head is coaxially installed with a plug post that matches the cross-sectional size of the plug groove and is interference-fitted, so that the anti-slip head can be interference-fitted on the positioning rod, which enhances the connection stability between the anti-slip head and the positioning rod and facilitates the replacement and maintenance of the anti-slip head.

[0019] 3. In this ultrasonic positioning bracket for partial discharge of the sleeve, the bottom surface of the lifting cylinder is coaxially mounted with a base. The bottom of the lifting cylinder is rotatably connected to the base through a bearing, which allows the lifting cylinder to rotate flexibly on the base, making it easy to adjust the direction and angle of the positioning bracket and improving the flexibility of use. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 3 This is an exploded cross-sectional view of the adjustable positioning cylinder of this utility model.

[0024] 10. Positioning seat;

[0025] 20. Adjustable positioning cylinder; 21. Positioning rod; 22. Anti-slip head; 23. Insertion groove; 24. Insertion post;

[0026] 30. Support base; 31. Anti-slip mat;

[0027] 40. Lifting cylinder; 41. Lifting rod; 42. Base; 43. Servo geared motor; 44. Bearing; 45. Rotary shaft;

[0028] 50. Sleeve. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Partial discharge ultrasonic positioning stent for cannula, such as Figures 1-3As shown, the device includes a U-shaped positioning seat 10 for ultrasonic positioning of the sleeve 50 during partial discharge. Several sets of uniformly spaced, linearly inclined, and downward-sloping adjustable positioning cylinders 20 are symmetrically arranged on both sides of the positioning seat 10. All sets of adjustable positioning cylinders 20 operate synchronously. A support seat 30 with an arc-shaped top surface is installed at the bottom of the positioning seat 10. A lifting cylinder 40 is installed on the bottom surface of the positioning seat 10. A positioning rod 21 is coaxially connected to the piston rod end of each adjustable positioning cylinder 20, and a replaceable anti-slip head 22 is installed at the end of the positioning rod 21. An anti-slip pad 31 is installed on the top surface of the support seat 30. The top of the lifting rod 41 of the lifting cylinder 40 is coaxially connected to the center of the bottom surface of the positioning seat 10, passing through a set cross-section. A U-shaped positioning seat 10 is used to fix the sleeve 50. Several sets of evenly spaced, linearly inclined, and downward-sloping adjustable positioning cylinders 20 are symmetrically arranged on both sides, allowing for flexible adjustment of the positioning force on the sleeve 50. The piston rod end of each adjustable positioning cylinder 20 is coaxially connected to a positioning rod 21, and the end has a replaceable anti-slip head 22, enhancing the stability and applicability of the positioning. An arc-shaped support seat 30 with an upper surface and an anti-slip pad 31 installed on its top surface are mounted on the bottom of the positioning seat 10, better conforming to the sleeve 50 and preventing it from sliding. A lifting cylinder 40 is mounted on the bottom surface of the positioning seat 10, with the top of the lifting rod 41 coaxially connected to the center of the bottom surface of the positioning seat 10, allowing for convenient adjustment of the height position of the sleeve 50. These structures work together to enable the sleeve partial discharge ultrasonic positioning bracket to accurately and stably position the sleeve 50, facilitating partial discharge ultrasonic positioning operations.

[0032] Furthermore, the end of the positioning rod 21 is coaxially provided with a plug groove 23, the surface of the anti-slip head 22 is arc-shaped, and the back of the anti-slip head 22 is coaxially installed with a plug post 24 that is adapted to the cross-sectional size of the plug groove 23 and has an interference fit, so that the anti-slip head 22 can be interference fitted on the positioning rod 21, which enhances the connection stability between the anti-slip head 22 and the positioning rod 21 and facilitates the replacement and maintenance of the anti-slip head 22.

[0033] It is worth noting that the anti-slip head 22 is made of rubber and has a protrusion height of 5-8mm, which allows the anti-slip head 22 to provide better friction when in contact with the sleeve, effectively preventing the sleeve from sliding during the positioning process and improving the positioning accuracy.

[0034] Specifically, a base 42 is coaxially mounted on the bottom surface of the lifting cylinder 40. The bottom of the lifting cylinder 40 is rotatably connected to the base 42 through a bearing 44, which allows the lifting cylinder 40 to rotate flexibly on the base 42, making it easy to adjust the direction and angle of the positioning bracket and improving the flexibility of use.

[0035] In addition, a servo geared motor 43 is embedded in the center of the top surface of the base 42. The rotating shaft 45 of the servo geared motor 43 is inserted and engaged with the bottom of the lifting cylinder 40. It is worth noting that the insertion hole at the bottom of the lifting cylinder 40 is not connected to the internal piston groove. The servo geared motor 43 can drive the lifting cylinder 40 to rotate, thereby adjusting the angle and direction of the positioning bracket.

[0036] The bottom openings of both the rotating shaft 45 and the lifting cylinder 40 are square, which improves the stability after insertion.

[0037] The working principle of this partial discharge ultrasonic positioning bracket:

[0038] First, place the base 42 on a stable working surface; the servo reduction motor 43 is in standby mode at this time.

[0039] Then, the sleeve 50 is placed on the support seat 30 inside the positioning seat 10. The anti-slip pad 31 on the top surface of the support seat 30 can prevent the sleeve 50 from sliding and provide initial support.

[0040] Next, the adjustable positioning cylinder 20 is activated, and its piston rod drives the positioning rod 21 to extend. The anti-slip head 22 at the end of the positioning rod 21 contacts the sleeve 50. The rubber material and raised design of the anti-slip head 22 can increase the friction and ensure the sleeve is stable. According to the size of the sleeve, the positioning can be accurately positioned by adjusting the extension and retraction length of the adjustable positioning cylinder 20.

[0041] Subsequently, if the height of the sleeve 50 needs to be adjusted, the lifting rod 41 of the lifting cylinder 40 will rise or fall, thereby adjusting the height of the positioning seat 10 and the sleeve 50. During the lifting process, since the bottom of the lifting cylinder 40 is rotatably connected to the base 42 through the bearing 44, the positioning direction can be flexibly adjusted.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A casing partial discharge ultrasonic positioning support, comprising a positioning seat (10) for casing (50) partial discharge ultrasonic positioning and a U-shaped cross section, characterized in that: The positioning seat (10) is symmetrically provided with several groups of adjustable positioning air cylinders (20) which are in straight line and tilt downward, the inner bottom of the positioning seat (10) is provided with a support seat (30) with arc top surface, and the bottom of the positioning seat (10) is provided with a lifting air cylinder (40); The piston rod end of each group of adjustable positioning air cylinders (20) is coaxially connected with a positioning rod (21), and the end of the positioning rod (21) is provided with a replaceable anti-skid head (22); The top surface of the support seat (30) is provided with an anti-skid pad (31); The lifting rod (41) of the lifting air cylinder (40) is coaxially connected to the bottom center of the positioning seat (10).

2. The partial discharge ultrasonic locating bracket for a bushing according to claim 1, characterized in that: The end of the positioning rod (21) is coaxially provided with a plug-in groove (23).

3. The partial discharge ultrasonic locating bracket for a bushing according to claim 2, characterized in that: The surface of the anti-skid head (22) is circular arc, and the back of the anti-skid head (22) is coaxially provided with a plug-in column (24) which is matched with the cross section size of the plug-in groove (23) and is plug-in matched.

4. The partial discharge ultrasonic locating bracket for a bushing according to claim 2, characterized in that: The anti-skid head (22) is made of rubber head, and the height of the convex is 5-8mm.

5. The partial discharge ultrasonic locating bracket for a bushing of claim 1, wherein: The bottom of the lifting air cylinder (40) is coaxially provided with a base (42).

6. The partial discharge ultrasonic locating bracket for a bushing of claim 5, wherein: The bottom of the lifting air cylinder (40) is rotatably connected to the base (42) through a bearing (44).

7. The partial discharge ultrasonic locating bracket for a bushing according to claim 6, characterized in that: The top center of the base (42) is embedded with a servo reduction motor (43), and the rotating shaft (45) of the servo reduction motor (43) is plug-in matched with the bottom of the lifting air cylinder (40).

8. The partial discharge ultrasonic locating bracket for a bushing of claim 7, wherein: The opening cross section of the rotating shaft (45) and the bottom of the lifting air cylinder (40) is square.

Images