Large-current sleeve overturning trolley

Abstract

The utility model discloses a large-current sleeve overturning trolley which comprises a base, two triangular supporting frames which are oppositely arranged in parallel are arranged on the base, and the vertex angles of the triangular supporting frames are vertically upward. Rotating bearings are arranged at the top corners of the triangular supporting frame, a movable flange is arranged between the rotating bearings, and the two sides of the movable flange are in rotating fit with the top corners of the triangular supporting frame through the rotating bearings on the corresponding sides; a pull lug is arranged on the side wall of the movable flange, a rotating oil cylinder is arranged on the base, the two ends of the rotating oil cylinder are in hinged fit with the pull lug and the base through hinge pieces respectively, the safety risk in the vertical state and horizontal state switching process of the large-current sleeve can be effectively controlled, and it is ensured that posture switching and transferring of the sleeve are completed safely, efficiently and conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of large transformer maintenance, in particular to a large current bushing turning trolley. Background Art

[0002] At present, transformer high-current bushings are generally carried by ordinary small trailers and cooperated with cranes for posture conversion and transportation. Since the trailers do not have flipping and height adjustment functions and operability. The high-current bushing is close to 1 meter high, weighs 0.5 tons, and is easy to break. There are certain safety risks in flipping the bushing by lifting, and the operation is difficult. In order to standardize the acceptance, posture conversion and transportation of high-current bushing equipment, and ensure the safe, efficient and convenient completion of the disassembly and transportation of the corresponding equipment, it is necessary to design a flip trolley that can slide, flip, and adjust the height at the same time. Utility Model Content

[0003] The utility model provides a high-current bushing turning trolley, aiming to solve the problem that the existing high-current bushing lacks state-convertible conveying equipment.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A high current bushing turning trolley comprises a base, on which two triangular support frames are arranged oppositely and in parallel, and the top corners of the triangular support frames are both vertically upward;

[0006] The top corners of the triangular support frame are all provided with rotation bearings, and movable flanges are provided between the rotation bearings, and the two sides of the movable flanges respectively form a rotational fit with the top corners of the triangular support frame through the rotation bearings on the corresponding sides;

[0007] A pull ear is arranged on the side wall of the movable flange, and a rotating oil cylinder is arranged on the base. Two ends of the rotating oil cylinder are respectively hingedly matched with the pull ear and the base through hinged parts.

[0008] Preferably, the triangular support frame is an isosceles triangle, and the triangular support frame includes two waist supports and a midline support. The three supports are connected at the top corners, and the base serves as the bottom edge of the triangular support frame.

[0009] As a more preferred embodiment, the rotary bearings on both sides are coaxially arranged, and the central axis of the movable flange is arranged along the radial direction of the rotary bearing.

[0010] Furthermore, the movable flange is provided with flange screw holes, and the movable flange is connected to the high-current bushing through bolts.

[0011] Preferably, the movable flange comprises two arc portions with openings arranged opposite to each other, and the ends of the two arc portions are connected by a rotating portion to form a complete circular ring. The rotating portion of the movable flange forms a rotational fit through the top angle of the triangular support frame. The two arc portions are symmetrical about the rotary bearing, one of the arc portions is provided with a pull ear, and the other arc portion is divided into two halves along the axial direction and connected by bolts.

[0012] As a more preferred embodiment, a gasket is provided on the inner side of the movable flange.

[0013] Furthermore, there are two pull ears, and the two pull ears are symmetrical about the central axis of the movable flange, and there are two rotating cylinders corresponding to the pull ears one by one.

[0014] Furthermore, the rotating oil cylinders are all parallel to the triangular support frame, the fixed ends of the rotating oil cylinders are hingedly matched with the base through hinges, and the output ends of the rotating oil cylinders are hingedly matched with the corresponding pull ears through hinges.

[0015] Specifically, the rotating cylinder is a hydraulic cylinder.

[0016] Preferably, liftable legs are provided on the four corners of the base, and a brakeable universal wheel is provided at the bottom of each liftable leg.

[0017] Beneficial effects of the utility model:

[0018] The utility model provides a high-current bushing turning trolley, which can effectively control the safety risks in the process of converting the high-current bushing between vertical and horizontal states, ensure the safe, efficient and convenient completion of the bushing posture conversion and transportation, and improve the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the top installation of the trolley when the high current bushing of the utility model is in a vertical posture;

[0021] Figure 3 This is a schematic diagram of the bottom installation of the trolley when the high current bushing of the utility model is in a vertical posture;

[0022] In the figure: 1. Base; 2. Rotating cylinder; 3. Movable flange; 4. Pull ear; 5. Liftable leg; 6. Universal wheel; 7. Rotating bearing; 8. Flange screw hole; 9. Gasket; 10. Triangle support frame; 11. High current bushing. DETAILED DESCRIPTION

[0023] As follows, embodiments are further described with reference to the accompanying drawings.

[0024] like Figure 1~Figure 3 As shown, as a preferred embodiment 1, a high current bushing turning trolley comprises a base 1, on which two triangular support frames 10 arranged opposite to and in parallel are provided, and the top corners of the triangular support frames 10 are both vertically upward;

[0025] The top corners of the triangular support frame 10 are all provided with rotation bearings 7, and a movable flange 3 is provided between the rotation bearings 7, and the two sides of the movable flange 3 form a rotational fit with the top corners of the triangular support frame 10 through the rotation bearings 7 on the corresponding sides;

[0026] A pull ear 4 is provided on the side wall of the movable flange 3, and a rotating oil cylinder 2 is provided on the base 1. Two ends of the rotating oil cylinder 2 are respectively hingedly matched with the pull ear 4 and the base 1 through hinged parts.

[0027] In Example 1, a rotation fulcrum is provided by the top angle of the three support frames 10, and the movable flange 3 forms a rotation fit at the top angle through the rotating bearing 7, so that the movable flange 3 can rotate around the rotating bearing 7, and the rotating cylinder 2 provides a driving force for the rotation of the movable flange 3. The rotating cylinder 2 changes its state, thereby changing the length of the rotating cylinder 2. During the process, force is applied to the pull ear 4 to drive the movable flange 3 to rotate.

[0028] As a preferred embodiment 2, the triangular support frame 10 is an isosceles triangle, and the triangular support frame 10 includes two waist supports and a midline support, and the three supports are connected at the top corners, and the base 1 serves as the bottom edge of the triangular support frame 10. To ensure stability during rotation, the bottom of the support forms a fixed fit with the base 1.

[0029] As a preferred embodiment 3, the rotary bearings 7 on both sides are coaxially arranged, and the central axis of the movable flange 3 is arranged along the radial direction of the rotary bearing 7 to ensure normal rotation.

[0030] As a preferred embodiment 4, the movable flange 3 is provided with flange screw holes 8, and the movable flange 3 is connected to the high current bushing 11 by bolts.

[0031] The high current bushing 11 can be embedded and installed in the movable flange 3. After the installation is completed, the flange part of the high current bushing 11 is in contact with the flange part of the movable flange 3. At this time, the flange screw holes 8 on the two flange parts overlap, and the flanges can be fixed and matched by bolts, thereby completing the installation of the high current bushing 11.

[0032] As a preferred embodiment 5, the movable flange 3 includes two arc portions with openings arranged opposite to each other, and the ends of the two arc portions are connected by a rotating portion to form a complete circular ring. The rotating portion of the movable flange 3 forms a rotational fit through the top angle of the triangular support frame 10, and the two arc portions are symmetrical about the rotating bearing 7, one side of the arc portion is provided with a pull ear 4, and the other side of the arc portion is divided into two halves along the axial direction and connected by bolts.

[0033] Both arc parts are symmetrical about the rotating part. A rotating shaft is provided in the middle position of the rotating part to form a rotating fit with the top angle through a rotating bearing 7. There are two pull ears 4 and they are symmetrical about the middle position of the arc part where they are located, and both ends of the arc part where the pull ears 4 are located are fixedly matched with the rotating part on the corresponding side. After the other arc part is divided into two symmetrical halves along the axial direction, the sides of the two parts that are far away from each other are respectively hingedly matched with the rotating part on the corresponding side, and the sides of the two parts that are close to each other are connected by bolts to facilitate the fixation of the equipment.

[0034] As a preferred embodiment 6, a gasket 9 is provided on the inner side of the movable flange 3 .

[0035] The gasket 9 is made of soft materials such as rubber and is used to protect the equipment. Adjusting the thickness of the gasket 9 can make the flip device contact with the flange more closely and firmly.

[0036] As a preferred embodiment 7, there are two pull ears 4, and the two pull ears 4 are symmetrical about the central axis of the movable flange 3, and there are two rotating cylinders 2 corresponding to the pull ears 4 one by one, so as to ensure the stability during rotation.

[0037] As a preferred embodiment 8, the rotating cylinder 2 is parallel to the triangular support frame 10, the fixed end of the rotating cylinder 2 is hinged to the base 1 through a hinge, and the output end of the rotating cylinder 2 is hinged to the corresponding pull ear 4 through a hinge to ensure the rotation.

[0038] As a preferred embodiment 9, the rotating cylinder 2 is a hydraulic cylinder, which is used to drive the movable flange 3 to rotate slowly and evenly.

[0039] As a preferred embodiment 10, liftable legs 5 are provided on the four corners of the base 1, and a brakeable universal wheel 6 is provided at the bottom of each liftable leg 5.

[0040] The liftable legs 5 are all arranged vertically, and are symmetrical in pairs about the middle position of the base 1 , and the universal wheels 6 have a locking function.

[0041] The working principle of this utility model:

[0042] When in use, first lock the universal wheel 6, adjust the thickness of the gasket 9 according to the size of the high-current bushing 11, connect and fix the high-current bushing 11 to the movable flange 3 by screwing through the flange screw hole 8, adjust the rotating cylinder 2 to drive the movable flange 3 to rotate slowly and evenly to achieve the posture conversion of the high-current bushing 11. When the rotating cylinder 2 is pressurized and lifted, the high-current bushing 11 is converted from a horizontal posture to a vertical posture. When the rotating cylinder 2 is depressurized, the high-current bushing 11 is converted from a vertical posture to a horizontal posture. After the universal wheel 6 is unlocked, the entire trolley can be pushed to achieve horizontal transportation of the high-current bushing 11.

Claims

1. A high current bushing turning trolley, characterized in that: It comprises a base (1), wherein two triangular support frames (10) are arranged opposite to each other and in parallel on the base (1), and the top corners of the triangular support frames (10) are both facing vertically upwards; The top corners of the triangular support frame (10) are all provided with rotation bearings (7), a movable flange (3) is provided between the rotation bearings (7), and both sides of the movable flange (3) form a rotational fit with the top corners of the triangular support frame (10) through the rotation bearings (7) on the corresponding sides; A pull ear (4) is provided on the side wall of the movable flange (3), and a rotating oil cylinder (2) is provided on the base (1). The two ends of the rotating oil cylinder (2) are respectively hingedly matched with the pull ear (4) and the base (1) through hinged parts.

2. A high current bushing turning trolley according to claim 1, characterized in that: The triangular support frame (10) is an isosceles triangle, and comprises two waist supports and a midline support, the three supports are connected and joined at the top corners, and the base (1) serves as the bottom edge of the triangular support frame (10).

3. A high current bushing turning trolley according to claim 2, characterized in that: The rotating bearings (7) on both sides are coaxially arranged, and the central axis of the movable flange (3) is arranged along the radial direction of the rotating bearing (7).

4. A high current bushing turning trolley according to claim 3, characterized in that: The movable flange (3) is provided with a flange screw hole (8), and the movable flange (3) is connected to the high-current bushing (11) via bolts.

5. A high current bushing turning trolley according to any one of claims 1 to 4, characterized in that: The movable flange (3) comprises two arc portions with openings arranged opposite to each other, and the ends of the two arc portions are connected via a rotating portion to form a complete circular ring. The rotating portion of the movable flange (3) forms a rotational fit via the top angle of the triangular support frame (10). The two arc portions are symmetrical about the rotary bearing (7), one of the arc portions is provided with a pull ear (4), and the other arc portion is divided into two halves along the axial direction and connected via bolts.

6. A high current bushing turning trolley according to claim 5, characterized in that: A gasket (9) is provided on the inner side of the movable flange (3).

7. A high current bushing turning trolley according to claim 5, characterized in that: There are two pull ears (4), and the two pull ears (4) are symmetrical about the central axis of the movable flange (3). There are two rotating cylinders (2) and they correspond one to one with the pull ears (4).

8. A high current bushing turning trolley according to claim 7, characterized in that: The rotating cylinders (2) are parallel to the triangular support frame (10), the fixed ends of the rotating cylinders (2) are hingedly matched with the base (1) via hinges, and the output ends of the rotating cylinders (2) are hingedly matched with the corresponding pull ears (4) via hinges.

9. A high current bushing turning trolley according to claim 8, characterized in that: The rotating oil cylinder (2) is a hydraulic oil cylinder.

10. A high current bushing turning trolley according to claim 1, characterized in that: The four corners of the base (1) are each provided with a liftable support leg (5), and the bottom of each liftable support leg (5) is provided with a brakeable universal wheel (6).

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