A transformer with explosion-proof function

Abstract

The present application relates to the technical field of transformer, and more particularly to a transformer with explosion-proof function, comprising a transformer, the bottom of the transformer is provided with a mounting frame, the mounting frame is provided with double-shaft air cylinders arranged symmetrically, the top of the mounting frame is slidably connected with fixed ring blocks arranged symmetrically, the fixed ring blocks are connected with the telescopic rods of the double-shaft air cylinders, the side of the mounting frame close to the fixed ring blocks is slidably connected with a ring frame, a switching mechanism is arranged in the mounting frame, the switching mechanism is used for switching the fixed ring blocks and the ring frame, and a clamping mechanism is arranged in the mounting frame. The device can realize automatic centering and positioning during hoisting of the transformer by moving the ring frame and the rollers outward to tightly contact the wire pole, the rollers are guided to ascend along the wire pole, hoisting shaking is effectively inhibited, the risk of knocking and injury caused by manual alignment is reduced, the gear rack and the double-shaft air cylinder are used to drive the rollers to open and close, the fixed ring blocks are matched with the rotating ring blocks to clamp the wire pole after being positioned, and the spring and the wedge-shaped clamping block realize rapid locking.

Description

Technical Field

[0001] This invention relates to the technical field of transformers, and more particularly to a transformer with explosion-proof function. Background Technology

[0002] Explosion-proof transformers have explosion-proof functions, which can prevent sparks and high temperatures from igniting and igniting surrounding explosive gases and dust mixtures caused by internal faults. They are widely used in industrial and mining sites where there is an explosion hazard.

[0003] When performing high-altitude installation work on existing explosion-proof transformers, cranes are generally used to lift and transport them to the installation position. During the lifting process, the transformer is prone to shaking, and it is difficult for the crane to accurately align the equipment directly. After the transformer is lifted to the vicinity of the installation position, the workers need to manually push and pull the transformer to center it before tightening the bolts. During the lifting state, the transformer continues to shake, and the workers are very likely to be hit and injured by the shaking transformer when performing manual alignment operations at close range, which poses a high risk of personal injury.

[0004] Meanwhile, manual alignment and positioning have poor accuracy, repeated adjustments consume time, and installation efficiency is low, making it difficult to meet the requirements of safe and efficient on-site installation operations. Therefore, a transformer with explosion-proof function is now being developed. Summary of the Invention

[0005] An explosion-proof transformer includes a transformer, a mounting frame at the bottom of the transformer, a symmetrically arranged dual-axis cylinder on the mounting frame, a symmetrically arranged fixed annular block slidably connected to the top of the mounting frame, the fixed annular block being connected to the telescopic rod of the dual-axis cylinder, an annular frame slidably connected to the side of the mounting frame near the fixed annular block, a switching mechanism inside the mounting frame for switching the fixed annular block and the annular frame, and a clamping mechanism inside the mounting frame for clamping the transformer onto the power post.

[0006] To further explain, the switching mechanism includes a first rack, which is symmetrically arranged and fixedly connected to the bottom of the fixed annular block. The first rack meshes with a first gear, which is rotatably connected to the mounting bracket. The first gear meshes with a second rack, which is fixedly connected to the outer side of the adjacent annular frame.

[0007] To further explain, the clamping mechanism includes sliding blocks. The sliding blocks are symmetrically arranged on the side of the fixed annular block away from the mounting frame. A rotating annular block is rotatably connected to one of the sliding blocks. A first column is provided on the side of the rotating annular block away from the annular frame. A first wedge-shaped locking block is slidably connected to the sliding block on the side away from the rotating annular block. The first wedge-shaped locking block and the first column are pressed together. A first spring is connected between the first wedge-shaped locking block and the adjacent sliding block.

[0008] To further explain, it also includes a second column, which is fixedly connected to the top of the rotating annular block near the side of the sliding block. A second wedge-shaped locking block is slidably connected to the top of the sliding block near the side of the second column. The second wedge-shaped locking block and the second column are pressed together. A second spring is connected between the second wedge-shaped locking block and the sliding block. A pressing mechanism for squeezing the second wedge-shaped locking block is provided on the fixed annular block.

[0009] To further explain, the extrusion mechanism includes a wedge frame, which is fixedly connected to the second wedge block. An extrusion frame is slidably connected to the fixed annular block. A third spring connects the extrusion frame and the fixed annular block. A wedge block is connected to the side of the extrusion frame near the wedge frame, and the wedge block and the inner side of the wedge frame are extruded together.

[0010] To further explain, the telescopic rod of the dual-axis cylinder is slidably connected to the fixed annular block. A block is fixedly connected to the outer end of the telescopic rod of the dual-axis cylinder. A stop block is connected to the side of the telescopic rod of the dual-axis cylinder near the block. A fourth spring is connected between the outer side of the stop block and the adjacent fixed annular block. A third rack is connected to the block. A second gear is fixedly connected to the bottom of the rotating annular block near the sliding block. The second gear and the third rack mesh.

[0011] To further explain, it also includes a rotating rod, which is symmetrically arranged and rotatably connected to the top of the mounting bracket. The rotating rod is slidably connected to symmetrically arranged threaded rods. The threaded rods are threadedly connected to a sliding block. The sliding block is slidably connected to a fixed annular block. The mounting bracket is rotatably connected to a worm gear. The rotating rod is fixedly connected to a worm wheel, and the worm wheel and worm gear mesh.

[0012] To further explain, a slot is cut into the worm gear.

[0013] To further explain, the ring frame has multiple equally spaced rollers on its external rotating connection.

[0014] The beneficial effects of this invention are as follows: 1. This device can automatically center and position the transformer during hoisting by moving the ring frame and rollers outward to fit closely to the utility pole. The rollers are guided up and down along the utility pole, effectively suppressing hoisting sway and reducing the risk of injury from collisions during manual alignment. The rollers are driven to open and close by using a gear rack and a double-axis cylinder. After reaching the correct position, the fixed ring block and the rotating ring block cooperate to lock the utility pole. The spring and the wedge-shaped locking block achieve quick locking, eliminating the need for manual adjustment and improving installation efficiency and operational safety.

[0015] 2. This device limits the second column by using the second wedge-shaped locking block, thereby locking the rotating ring block. During the hoisting process, the rotating ring block is locked to prevent it from swinging freely, thus preventing injury to workers and collision with the utility pole. The mechanism automatically unlocks by relying on the contact of the compression frame with the utility pole, without the need for additional manual operation. Once in position, the rotating ring block can be rotated to complete the locking, further improving the safety performance of transformer hoisting operations.

[0016] 3. This device utilizes a dual-axis cylinder to continuously extend and drive the third rack and second gear transmission. After unlocking, it can drive the rotating ring block to automatically rotate and close, eliminating the need for manual closing operation and reducing the risk of close-range operation for personnel. With the help of a fourth spring, stroke compensation is achieved. Even after the fixed ring block abuts against the utility pole, the driving action can still be completed, simplifying the installation process and improving the efficiency and safety of hoisting and installing explosion-proof transformers.

[0017] 4. This device can be adapted to wire posts of different thicknesses. By adjusting the position of the rotating ring block through the worm gear and worm wheel in conjunction with the drive threaded rod, the clamping distance can be flexibly adjusted to achieve reliable clamping. It is compatible with various specifications of cable posts, has a wide range of applications, and provides stable clamping. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the components such as the fixed annular block, annular frame, and rollers of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the first rack, first gear, and second rack components of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the second column, the second wedge-shaped block, and the second spring of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the second wedge-shaped block, the second spring, and the wedge-shaped frame of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the components of the present invention, including the third rack, the second gear, and the threaded rod.

[0024] Figure 7 This is a three-dimensional structural diagram of the rotating rod, worm gear, and worm of the present invention.

[0025] In the attached diagrams: 1: Transformer, 2: Mounting bracket, 3: Dual-shaft cylinder, 4: Fixed annular block, 5: Annular frame, 6: Roller, 7: First rack, 8: First gear, 9: Second rack, 10: Sliding block, 11: Rotating annular block, 12: First column, 13: First wedge-shaped block, 14: First spring, 15: Second column, 16: Second wedge-shaped block, 17: Second spring, 18: Wedge frame, 19: Extrusion frame, 20: Wedge block, 21: Third spring, 211: Block, 212: Stop block, 22: Fourth spring, 23: Third rack, 24: Second gear, 25: Threaded rod, 26: Rotating rod, 27: Worm gear, 28: Worm, 29: Slotted groove. Detailed Implementation

[0026] The invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0027] A transformer with explosion-proof function, such as Figures 1-4 As shown, the device includes a transformer 1, a mounting frame 2 bolted to the bottom of the transformer 1, dual-axis cylinders 3 on both the front and rear sides of the mounting frame 2, and fixed annular blocks 4 slidably connected to the top left and right sides of the mounting frame 2. The telescopic rods of the fixed annular blocks 4 and the dual-axis cylinders 3 are connected together. Ring frames 5 are slidably connected to the left and right sides of the mounting frame 2, and multiple equally spaced rollers 6 are rotatably connected to the outside of each ring frame 5. A switching mechanism for switching the fixed annular blocks 4 and ring frames 5 is provided inside the mounting frame 2, as well as a clamping mechanism for clamping the transformer 1 onto the power pole. The switching mechanism includes a first rack 7, which is fixedly connected to the front and rear sides of the bottom of the fixed annular blocks 4. Position: The first rack 7 is meshed with the first gear 8, the first gear 8 is rotatably connected to the mounting bracket 2, the bottom of the first gear 8 is meshed with the second rack 9, and the exterior of the second rack 9 is fixedly connected to the adjacent ring frame 5; the clamping mechanism includes a sliding block 10, the sliding blocks 10 are all set on the front and rear sides of the fixed ring block 4, the front sliding block 10 is rotatably connected to the rotating ring block 11, the right side of the rotating ring block 11 is provided with the first column 12, the right side of the rear sliding block 10 is slidably connected to the first wedge-shaped locking block 13, the first wedge-shaped locking block 13 and the first column 12 are pressed together, and the rear side of the first wedge-shaped locking block 13 and the rear sliding block 10 are connected to the first spring 14.

[0028] When transformer 1 needs to be installed on a utility pole, it is first bolted onto mounting bracket 2. Then, transformer 1 is lifted using a crane. When placing transformer 1 between two utility poles, it needs to be centered between them. This is achieved by shortening the telescopic rod of the double-axis cylinder 3, which moves the fixed annular block 4 inward. This inward movement of the fixed annular block 4 moves the first rack 7 inward, moving it away from the utility pole. The first rack 7, through the first gear 8, moves the second rack 9 outward. This outward movement of the second rack 9 moves the annular frame 5 outward, which in turn moves the roller 6 outward. After the roller 6 contacts the utility pole, it... Wheel 6 will abut against the utility pole, and under the action of the ring frame 5, it can keep the transformer 1 in a centered position between the utility poles. Then, when the crane lifts the transformer 1 upward, it will drive the mounting frame 2, the ring frame 5 and the roller 6 to move upward. The roller 6 moves upward in a straight line along the utility pole. Under the action of the rotation of the roller 6, it can easily move the transformer 1 to the required installation position, while keeping the transformer 1 in a centered position and preventing the transformer 1 from shaking during the hoisting process. After moving to the required installation position, the extension rod of the double-axis cylinder 3 is controlled to drive the fixed ring block 4 to move outward. The fixed ring block 4 moves outward to the outer wall of the utility pole, and the fixed ring block 4 drives the first rack 7. The outward movement is achieved by the first gear 8 driving the second rack 9 to move inward and reset. The inward movement of the second rack 9 drives the ring frame 5 and roller 6 to move inward and reset. The roller 6 separates from the wire post. After the fixed ring block 4 is locked onto the outer wall of the wire post, the rotating ring block 11 can be rotated backward to close with the fixed ring block 4. When the first column 12 on the rotating ring block 11 moves to contact the first wedge-shaped locking block 13, it will push the first wedge-shaped locking block 13 backward, compressing the first spring 14. After the first column 12 moves to the left position of the first wedge-shaped locking block 13, under the action of the first spring 14, it drives the first wedge-shaped locking block 13 to move forward and reset, thus restricting the first column 12. This restricts the rotating ring block 11. The mechanism allows the rotating annular block 11 and the fixed annular block 4 to engage, clamping the mounting bracket 2 onto the power post, thus facilitating the installation of the transformer 1. If the transformer 1 needs to be removed, the first wedge-shaped locking block 13 is moved backward, compressing the first spring 14. The backward movement of the first wedge-shaped locking block 13 unlocks the first column 12, allowing the rotating annular block 11 to be opened. Then, the first wedge-shaped locking block 13 is released, and under the action of the first spring 14, it moves forward to reset. Afterward, the fixed annular block 4 is moved inward away from the power post by the dual-axis cylinder 3. At this time, the annular frame 5 and the roller 6 move outward. After the roller 6 moves outward and contacts the power post, it is convenient to remove the transformer 1.

[0029] like Figures 4-5 As shown, it also includes a second column 15, which is fixedly connected to the inner side of the top of the rotating annular block 11. The top of the front sliding block 10 is slidably connected to a second wedge-shaped locking block 16. The second wedge-shaped locking block 16 and the second column 15 are pressed together. A second spring 17 is connected between the rear part of the second wedge-shaped locking block 16 and the front sliding block 10. A pressing mechanism for squeezing the second wedge-shaped locking block 16 is provided on the fixed annular block 4. The pressing mechanism includes a wedge frame 18, which is fixedly connected to the left side of the second wedge-shaped locking block 16. A pressing frame 19 is slidably connected to the fixed annular block 4. A third spring 21 is connected between the pressing frame 19 and the fixed annular block 4. A wedge block 20 is fixedly connected to the outside of the pressing frame 19. The wedge block 20 and the inner side of the wedge frame 18 are pressed together.

[0030] During the hoisting of transformer 1, the rotating annular block 11 is in a rotated open state. However, since the rotating annular block 11 and the sliding block 10 are rotatably connected, the rotating annular block 11 is prone to rotating arbitrarily during hoisting. This could easily cause the rotating annular block 11 to hit workers or collide with utility poles. Therefore, this embodiment adopts the following solution:

[0031] Initially, the second wedge-shaped locking block 16 restricts the second column 15, allowing the rotating ring block 11 to remain in a forward-rotating state. This prevents the rotating ring block 11 from hitting workers or colliding with the utility pole during transformer 1 hoisting. When the fixed ring block 4 moves outward, it drives the pressing frame 19 outward. Once the pressing frame 19 contacts the utility pole, it stops moving. The fixed ring block 4 continues to move outward, driving the sliding block 10 and the rotating ring block 11 outward. The sliding block 10 then drives the second wedge-shaped locking block 16, the second column 15, and the wedge-shaped frame 18 to continue moving outward. After the inner side of the wedge-shaped frame 18 contacts the wedge-shaped block 20, the wedge-shaped frame 18 moves inward, carrying... The second wedge-shaped locking block 16 moves inward and disengages from the second column 15, compressing the third spring 21. The second wedge-shaped locking block 16 then unlocks the second column 15, allowing the operator to manually rotate and lock the rotating ring block 11 onto the power post. If the transformer 1 needs to be disassembled, the rotating ring block 11 is first reversed to open, causing the second column 15 to reverse and reset. Then, when the fixed ring block 4 moves inward to reset, the third spring 21 drives the compression frame 19 and the wedge block 20 to reset. After the wedge block 20 and the wedge frame 18 separate, the second wedge-shaped locking block 16 and the wedge frame 18 move and reset under the action of the second spring 17. The second wedge-shaped locking block 16 then re-restrains the second column 15, causing the rotating ring block 11 to return to its outward rotation state.

[0032] like Figures 5-6 As shown, the telescopic rod of the dual-axis cylinder 3 and the fixed annular block 4 are slidably connected. The outer end of the telescopic rod of the dual-axis cylinder 3 is fixedly connected to a block 211. A stop block 212 is fixedly connected to the side of the telescopic rod of the dual-axis cylinder 3 near the block 211. A fourth spring 22 is connected between the outer side of the stop block 212 and the adjacent fixed annular block 4. A third rack 23 is fixedly connected to the block 211. A second gear 24 is fixedly connected to the bottom of the rotating annular block 11 near the sliding block 10. The second gear 24 and the third rack 23 mesh.

[0033] After unlocking the rotating annular block 11, the operator needs to manually close and tighten it, which is quite troublesome. Therefore, this embodiment provides the following solution:

[0034] After the dual-axis cylinder 3 drives the fixed annular block 4 to fully abut against the utility pole, the fixed annular block 4 stops moving, and at this time the rotating annular block 11 is in the unlocked state. The telescopic rod of the dual-axis cylinder 3 continues to extend, which will drive the stop block 212 to continue to move outward. The fourth spring 22 is compressed, and the telescopic rod of the dual-axis cylinder 3 will drive the block 211 to continue to move outward. The block 211 continues to move outward, which will drive the third rack 23 to move outward. After the third rack 23 meshes with the second gear 24, it will drive the second gear 24 to rotate. The rotation of the second gear 24 will drive the rotating annular block 11 to rotate and close automatically. This can replace manual operation by the operator, which is safer and faster. When disassembling, the telescopic rod of the dual-axis cylinder 3 shortens, which will drive the block 211 and the third rack 23 to move inward. The third rack 23 drives the second gear 24 to reverse. The reverse rotation of the second gear 24 will drive the rotating annular block 11 to reverse and reset. The fourth spring 22 will stretch and reset.

[0035] like Figure 7 As shown, it also includes a rotating rod 26, which is rotatably connected to the front and rear sides of the top of the mounting frame 2. Threaded rods 25 are slidably connected to the left and right sides of the rotating rod 26. The threaded rods 25 are threadedly connected to the sliding block 10. The sliding block 10 is slidably connected to the fixed annular block 4. Worms 28 are rotatably connected to the middle of the mounting frame 2. Worm wheels 27 are fixedly connected to the middle of the rotating rods 26. Worm wheels 27 and worms 28 mesh. A slot 29 is opened on the front side of the worm 28.

[0036] Because the wire posts vary in thickness, while the fixed annular block 4 and the rotating annular block 11 clamp the same size, they cannot be adapted to different wire posts. Therefore, this embodiment adopts the following solution:

[0037] When the fixed annular block 4 moves outward, it will drive the threaded rod 25 to move outward. The threaded rod 25 slides along the rotating rod 26. When the rotating annular block 11 closes, the rotating annular block 11 and the fixed annular block 4 do not clamp the wire post. Therefore, it is necessary to move the rotating annular block 11 inward to clamp it. A flathead cutter can be inserted into the flathead slot 29. Then, the worm gear 28 is rotated. The rotation of the worm gear 28 drives the worm wheel 27 to rotate. The worm wheel 27 drives the rotating rod 26 to rotate. The rotation of the rotating rod 26 drives the threaded rod 25 to rotate. The rotation of the threaded rod 25 will drive the sliding block 10 to move inward. The movement of the sliding block 10 inward will drive the rotating annular block 11 to move inward and clamp it on the wire post. In this way, the clamping effect of different wire posts can be achieved.

[0038] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.

Claims

1. A transformer with explosion-proof function, characterized in that: The device includes a transformer (1), a mounting frame (2) at the bottom of the transformer (1), a symmetrically arranged double-axis cylinder (3) on the mounting frame (2), a symmetrically arranged fixed annular block (4) on the top of the mounting frame (2), the fixed annular block (4) and the telescopic rod of the double-axis cylinder (3) are connected, an annular frame (5) is slidably connected to the side of the mounting frame (2) near the fixed annular block (4), a switching mechanism is provided inside the mounting frame (2), the switching mechanism is used to switch the fixed annular block (4) and the annular frame (5), and a clamping mechanism is provided inside the mounting frame (2), the clamping mechanism is used to clamp the transformer (1) onto the pole.

2. A transformer with explosion-proof function according to claim 1, characterized in that: The switching mechanism includes a first rack (7), which is symmetrically arranged and fixedly connected to the bottom of the fixed ring block (4). The first rack (7) meshes with a first gear (8), which is rotatably connected to the mounting bracket (2). The first gear (8) meshes with a second rack (9), which is fixedly connected to the outer side of the second rack (9) and the adjacent ring frame (5).

3. A transformer with explosion-proof function according to claim 2, characterized in that: The clamping mechanism includes a sliding block (10). The symmetrically arranged sliding blocks (10) are located on the side of the fixed annular block (4) away from the mounting frame (2). A rotating annular block (11) is rotatably connected to one of the sliding blocks (10). A first column (12) is provided on the side of the rotating annular block (11) away from the annular frame (5). A first wedge-shaped locking block (13) is slidably connected to the sliding block (10) on the side away from the rotating annular block (11). The first wedge-shaped locking block (13) and the first column (12) are pressed together. A first spring (14) is connected between the first wedge-shaped locking block (13) and the adjacent sliding block (10).

4. A transformer with explosion-proof function according to claim 3, characterized in that: It also includes a second column (15), which is fixedly connected to the top of the rotating ring block (11) near the side of the sliding block (10). The top of the sliding block (10) near the second column (15) is slidably connected to a second wedge-shaped block (16). The second wedge-shaped block (16) and the second column (15) are pressed together. A second spring (17) is connected between the second wedge-shaped block (16) and the sliding block (10). A pressing mechanism for squeezing the second wedge-shaped block (16) is provided on the fixed ring block (4).

5. A transformer with explosion-proof function according to claim 4, characterized in that: The extrusion mechanism includes a wedge frame (18), which is fixedly connected to the second wedge block (16). An extrusion frame (19) is slidably connected to the fixed annular block (4). A third spring (21) is connected between the extrusion frame (19) and the fixed annular block (4). A wedge block (20) is connected to the side of the extrusion frame (19) near the wedge frame (18). The wedge block (20) and the inner side of the wedge frame (18) are extruded together.

6. A transformer with explosion-proof function according to claim 5, characterized in that: The telescopic rod of the dual-axis cylinder (3) and the fixed annular block (4) are slidably connected. The outer end of the telescopic rod of the dual-axis cylinder (3) is fixedly connected to a block (211). A stop block (212) is connected to the side of the telescopic rod of the dual-axis cylinder (3) near the block (211). A fourth spring (22) is connected between the outer side of the stop block (212) and the adjacent fixed annular block (4). A third rack (23) is connected to the block (211). A second gear (24) is fixedly connected to the bottom of the rotating annular block (11) near the sliding block (10). The second gear (24) and the third rack (23) mesh.

7. A transformer with explosion-proof function according to claim 6, characterized in that: It also includes a rotating rod (26), which is symmetrically arranged and rotatably connected to the top of the mounting frame (2). The rotating rod (26) is slidably connected to a symmetrically arranged threaded rod (25). The threaded rod (25) is threadedly connected to the outside of the sliding block (10). The sliding block (10) is slidably connected to the fixed ring block (4). The mounting frame (2) is rotatably connected to a worm (28). The rotating rod (26) is fixedly connected to a worm wheel (27). The worm wheel (27) and the worm (28) mesh.

8. A transformer with explosion-proof function according to claim 7, characterized in that: A slot (29) is opened on the worm (28).

9. A transformer with explosion-proof function according to claim 1, characterized in that: The ring frame (5) has multiple equally spaced rollers (6) on its external rotating connection.

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