Multi-size locking mechanism for transformer carrying

Abstract

The invention relates to the technical field of transformer carrying equipment, and discloses a transformer carrying multi-size locking mechanism which comprises an inverted L-shaped base fixedly connected with a rotating disc, a locking groove opposite to a test opening in the rotating disc is formed in the horizontal plane of the inverted L-shaped base, and inverted L-shaped locking parts capable of moving in the same direction or in the opposite directions are arranged on the two sides of the locking groove respectively. The locking groove is opposite to a test probe which is installed on an insulating plate which is fixed at the bottom of the rotating disc and is opposite to the position of a test opening in the rotating disc, and the two 7-shaped locking parts are both connected with a locking part driving mechanism which is used for driving the 7-shaped locking parts to move in the same direction or in the opposite directions, and further comprises a power source which is arranged on a base at the bottom of the rotating disc. The power source is located on the feeding and discharging station, and the locking part driving mechanism is opposite to the power source when rotating to the feeding and discharging station along with the rotating disc. The transformer locking and clamping device can achieve locking and clamping operation of transformers of various sizes and specifications, and has the advantages of being simple in structure, low in cost, high in universality and the like.

Description

Technical Field

[0001] This invention relates to the field of transformer handling equipment technology, and in particular to a multi-size locking mechanism for transformer handling. Background Technology

[0002] After production, electronic transformers require comprehensive testing and various high-voltage tests. Due to the numerous testing procedures, traditional transformer testing was done manually, with repeated material loading and unloading at each stage, resulting in significant time waste and low efficiency. To save labor costs and improve production efficiency, electronic transformer production lines have gradually evolved from traditional purely manual lines to semi-automatic lines, and then to today's fully automated lines. This has transformed electronic transformer manufacturers from labor-intensive enterprises into fully automated, capital-intensive companies.

[0003] Utility model patent CN203929917U discloses a general-purpose automated testing device for transformers, specifically an automated testing device for electronic transformers. It includes a main workbench; a turntable is mounted on the workbench, containing an unloading / loading station, a comprehensive testing station, and multiple high-voltage testing stations; each station is equipped with a test fixture, and each testing station has a testing unit; each testing unit includes a mounting base, two guide posts mounted on the mounting base, a crossbeam plate mounted on the guide posts, an insulating plate mounted on the crossbeam plate, a cylinder mounted between the two guide posts, and a test probe mounted on the insulating plate; a contact probe is mounted at each testing station. During operation, the cylinder extends and retracts to bring the contact probe into contact with the ferrite core of the electronic transformer workpiece under test, thereby achieving the testing objective.

[0004] As the transformer rotates to different testing stations on the turntable, it needs to be fixed in place to ensure the contact probes accurately contact the tested parts of the transformer. This prevents data deviations or even test failures due to transformer displacement or shaking during testing. Therefore, each testing station on the turntable in the aforementioned equipment requires a transformer locking mechanism to securely clamp the transformer, ensuring its positional accuracy and stability during testing. However, existing locking mechanisms are mostly limited to fixed-size clamping, making it difficult to adapt to transformers of different sizes and specifications. This results in poor versatility of the testing equipment. Furthermore, the clamping actuators in existing locking mechanisms require independent clamping drive components. Therefore, each transformer locking mechanism at multiple testing stations needs to be configured with a corresponding clamping and releasing drive component. Each drive component not only occupies a significant amount of equipment space but also greatly increases the complexity and maintenance costs of the equipment. Therefore, it is necessary to provide a transformer handling multi-size locking mechanism that is simple in structure, low in cost, and highly versatile to solve the aforementioned problems in the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-size locking mechanism for transformer handling, which requires only one power source to realize the clamping and loosening of transformers at multiple test stations, effectively reducing equipment complexity and maintenance costs, and can adapt to transformer products of different sizes and specifications, thereby improving the versatility and applicability of the equipment.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A transformer handling multi-size locking mechanism includes a "┓"-shaped base fixedly connected to a turntable. The horizontal surface of the "┓"-shaped base has a locking groove corresponding to a test port on the turntable. Each side of the locking groove has a "┓"-shaped locking part that can move in opposite directions. The locking groove is opposite to a test probe mounted on an insulating plate fixed to the bottom of the turntable and corresponding to the test port on the turntable. Both "┓"-shaped locking parts are connected to a locking part drive mechanism for driving their opposite or reverse movement. The mechanism also includes a power source located on a base at the bottom of the turntable. The power source is located at the loading / unloading station. When the locking part drive mechanism rotates with the turntable to the loading / unloading station, it is opposite to the power source.

[0008] By adopting the above technical solution, after the robotic arm transports the transformer under test to the loading / unloading station and places it above the testing station, the power source is activated, driving the locking mechanism to move the two "┓"-shaped locking parts in opposite directions, causing them to open. Subsequently, the robotic arm places the transformer into the locking groove of the "┓"-shaped seat; simultaneously, the power source is controlled to separate from the locking mechanism and return to its initial state. The locking mechanism automatically resets, driving the two "┓"-shaped locking parts to move towards each other, thereby clamping the transformer in the locking groove and ensuring its positional accuracy and stability during the testing process. Next, the turntable is controlled to rotate, causing the transformer under test to pass through the corresponding stations of each testing process sequentially until the last process is completed. Throughout the entire testing process, the power source does not need to be restarted. Only when all processes are completed and the transformer returns to the loading / unloading station does the power source restart, driving the locking mechanism to move the two "┓"-shaped locking parts in opposite directions again, releasing the transformer and facilitating its removal by the robotic arm. Since the power source is only used to control the opening action of the two "┓"-shaped locking parts during the loading and unloading process, and the transformer only needs to be kept clamped under the action of the locking part drive mechanism in all testing processes, the locking part drive mechanism does not need to be equipped with a separate clamping power source, nor does it need to be set up at each testing station to control the clamping of the transformer, which greatly simplifies the equipment structure and reduces maintenance costs.

[0009] A further feature of the present invention is that: a horizontal linear guide rail is provided on the horizontal section of the “┓”-shaped seat, which is respectively slidably engaged with the two “┓”-shaped locking parts, and a clamping block is provided on each of the two “┓”-shaped locking parts.

[0010] By adopting the above technical solution, the horizontal linear guide rail ensures the stability and guiding accuracy of the "┓"-shaped locking part during movement, thereby improving the reliability of clamping and releasing actions. The clamping block is designed to fit the transformer's external dimensions, allowing it to effectively conform to the transformer surface during clamping, enhancing clamping stability while preventing damage to the transformer casing.

[0011] A further feature of the present invention is that the clamping block and the “┓”-shaped locking part are fixedly installed by bolts, and an elastic buffer layer is provided on the clamping surface of the clamping block.

[0012] By adopting the above technical solution, the spiral connection method facilitates the disassembly, replacement and adjustment of the clamping block, while the elastic buffer layer plays a role in shock absorption and protection during the clamping process, effectively preventing wear or deformation of the transformer surface caused by rigid contact, and further improving the applicability and safety of the mechanism.

[0013] A further feature of the present invention is that the locking part driving mechanism includes a driving block that slides in cooperation with a vertical linear guide rail on the vertical section of the “┓”-shaped seat. The driving block is symmetrically provided with two inclined guide grooves. The distance between the two upper ends of the two inclined guide grooves is smaller than the distance between the two lower ends. The two inclined guide grooves slide in cooperation with sliding pins fixed on the vertical sections of the two “┓”-shaped locking parts.

[0014] A further feature of the present invention is that each of the two “┓”-shaped locking portions is provided with a fixing pin, and the two fixing pins are connected by a tension spring.

[0015] By adopting the above technical solution, when the power source is not started, the tension spring in the locking mechanism uses its own elasticity to automatically bring the two fixing pins closer together, thereby driving the two "┓"-shaped locking parts to move towards each other. This allows the two clamping blocks at their ends to maintain a closed state without relying on any power source, thus achieving automatic locking and fixing of the transformer. This effectively avoids the structural complexity and energy consumption problems caused by multiple power sources rotating with the turntable, as well as the safety hazards caused by clamping failure due to malfunctions. In addition, the preload of the tension spring can also provide a certain degree of adaptive adjustment capability for the two "┓"-shaped locking parts when clamping the transformer, enabling transformers of different sizes and specifications to achieve a stable clamping effect, further improving the versatility and reliability of the equipment.

[0016] When the power source starts and drives the drive block to move upward along the vertical linear guide rail, the inclined guide groove on the drive block moves relative to the sliding pin, forcing the two sliding pins to slide relative to the inclined guide groove from the end with the smaller gap to the end with the larger gap. This causes the two "┓"-shaped locking parts, which are fixedly connected to the two sliding pins, to move in the opposite direction along the horizontal linear guide rail, thereby releasing the transformer.

[0017] A further feature of the present invention is that the power source is a hydraulic cylinder or a pneumatic cylinder, and the extension shaft of the hydraulic cylinder or pneumatic cylinder contacts or separates from the bottom of the drive block.

[0018] By adopting the above technical solutions, hydraulic cylinders or pneumatic cylinders can provide stable and reliable driving force as a power source, while facilitating automated control. The wear-resistant pads effectively reduce frictional losses between the drive block and the telescopic shaft during movement, extending the service life of the equipment.

[0019] A further provision of the present invention is that a support mechanism is provided between the locking groove and the test port on the turntable for longitudinal support of the transformer when the transformer is not locked during loading and unloading. The support mechanism includes a support plate and a synchronous drive mechanism for driving the support plate to or from the position below the transformer clamping position in the locking groove. The two sides of the support plate are slidably engaged with the sliding grooves on both sides of the locking groove through sliding bosses.

[0020] By adopting the above technical solution, the support mechanism provides longitudinal support for the unlocked transformer during the loading and unloading process, preventing it from tilting or falling before clamping or after release, thereby effectively improving the safety and reliability of loading and unloading operations. The support plate is linked to the action of the "┓"-shaped locking part through a synchronous drive mechanism. The bosses on both sides slide along the locking groove in the direction of entering or leaving the locking groove, ensuring that its position is perfectly coordinated with the timing of clamping and releasing the transformer. That is, before the transformer is clamped in the locking groove, the support plate automatically reaches below the transformer clamping position to provide support; after the transformer is clamped, the support plate promptly withdraws from the clamping area, ensuring that there is no interference between the test surface and the test probes below each test station during the process of the transformer being clamped and tested, further ensuring the accuracy and safety of transformer testing.

[0021] A further configuration of the present invention is as follows: the synchronous drive mechanism includes drive racks respectively disposed on both sides of the support plate, the two drive racks meshing with drive gears on both sides of the support plate, the two drive gears being rotatably connected to the turntable via gear shafts, and the side of each drive gear opposite to the two "┓"-shaped locking parts being provided with synchronous racks respectively meshing with them, the two synchronous racks being fixedly connected to the two "┓"-shaped locking parts via connecting rods.

[0022] By adopting the above technical solution, when the two "┓"-shaped locking parts move towards or away from each other along the horizontal linear guide rail, they drive the synchronous racks to move towards or away from each other synchronously via the connecting rod. When the two synchronous racks move towards or away from each other, they drive the two drive gears to rotate in different directions, thereby driving the two drive racks to drive the support plate to move away from or to the area below the transformer clamping position synchronously for support or removal from the clamping area. This achieves synchronous linkage with the locking parts, ensuring the coordination and stability of the operation process.

[0023] A further feature of the present invention is that the end of the support plate away from the locking groove is provided with an upwardly extending limiting block.

[0024] By adopting the above technical solution, the limiting block is used to laterally limit the transformer when the robot arm places it into the locking groove, preventing it from shifting due to the release force of the robot arm or external factors before it is clamped, which could cause deviations or insecure clamping during locking, or prevent the bottom test part from corresponding to the test probe after locking. This further improves the accuracy of transformer locking and the reliability of testing.

[0025] A further feature of the present invention is that the limiting block and the support plate are fixedly connected by bolts, and both the support surface of the support plate and the limiting surface of the limiting block are provided with elastic buffer pads.

[0026] By adopting the above technical solution, the spiral connection method facilitates the disassembly, replacement and adjustment of the limit block, while the elastic buffer layer plays a buffering and protective role in the limiting process, effectively preventing the transformer surface from being worn or deformed due to rigid collision, and further improving the applicability and safety of the mechanism.

[0027] The beneficial effects of this invention are:

[0028] 1. In the operation of this invention, the power source is only used to control the opening action of the two "┓"-shaped locking parts during the loading and unloading process. In all testing processes, the transformer only needs to be kept in a clamped state under the action of the locking part drive mechanism. Therefore, the locking part drive mechanism does not need to be equipped with a separate clamping power source, nor does it need to be set up with a power source to control the clamping of the transformer at each testing station, which greatly simplifies the equipment structure and reduces maintenance costs.

[0029] 2. In this invention, the tension spring in the locking mechanism automatically brings the two fixing pins closer together using its own elasticity. This causes the two "┓"-shaped locking parts to move towards each other, allowing the two clamping blocks at their ends to maintain a closed state without relying on any power source. This achieves automatic locking and fixing of the transformer, effectively avoiding the structural complexity and energy consumption problems caused by multiple power sources rotating with the turntable, as well as the safety hazards caused by clamping failure due to malfunctions. Furthermore, the preload of the tension spring also provides a certain degree of adaptive adjustment capability for the two "┓"-shaped locking parts when clamping the transformer, enabling stable clamping effects for transformers of different sizes and specifications, further improving the versatility and reliability of the equipment.

[0030] 3. In this invention, the support mechanism provides longitudinal support for unlocked transformers during loading and unloading, preventing them from tilting or falling before clamping or after release, thereby effectively improving the safety and reliability of loading and unloading operations. The support plate is linked to the action of the "┓"-shaped locking part through a synchronous drive mechanism. The protrusions on both sides slide along the locking groove in the direction of entering or leaving the locking groove, ensuring that its position is perfectly coordinated with the timing of clamping and releasing the transformer. That is, before the transformer is clamped in the locking groove, the support plate automatically reaches below the transformer clamping position to provide support; after the transformer is clamped, the support plate promptly withdraws from the clamping area, ensuring that there is no interference between the test surface and the test probes below each test station during the process of the transformer being clamped and tested, further ensuring the accuracy and safety of transformer testing. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of the transformer handling multi-size locking mechanism of the present invention.

[0033] Figure 2 This is a cross-sectional structural diagram of the multi-size locking mechanism for transformer handling according to the present invention.

[0034] In the diagram: 1. Turntable; 2. "┓"-shaped base; 3. Test port; 4. Locking groove; 5. "┓"-shaped locking part; 6. Insulating plate; 7. Test probe; 8. Locking part drive mechanism; 81. Drive block; 82. Guide groove; 83. Sliding pin; 84. Fixing pin; 85. Tension spring; 9. Base; 10. Horizontal linear guide rail; 11. Clamping block; 12. Vertical linear guide rail; 13. Wear-resistant pad; 14. Support mechanism; 141. Support plate; 142. Sliding boss; 15. Synchronous drive mechanism; 151. Drive rack; 152. Drive gear; 153. Gear shaft; 154. Synchronous rack; 155. Connecting rod; 16. Limiting block; 17. Power source; 18. Slide groove; 19. Lifting cylinder; 20. Guide rod; 21. Lifting plate. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] The transformer handling multi-size locking mechanism includes a "┓"-shaped base 2 fixedly connected to a turntable 1. The horizontal surface of the "┓"-shaped base 2 is provided with a locking groove 4 opposite to the test port 3 on the turntable 1. Both sides of the locking groove 4 are provided with "┓"-shaped locking parts 5 that can move in opposite directions. The locking groove 4 is opposite to the test probe 7 installed on the insulating plate 6 fixed at the bottom of the turntable 1 and opposite to the test port 3 on the turntable 1. Both "┓"-shaped locking parts 5 are connected to a locking part driving mechanism 8 for driving their opposite or reverse movement. The mechanism also includes a power source 17 set on the base 9 at the bottom of the turntable 1. The power source 17 is located at the loading and unloading station. When the locking part driving mechanism 8 rotates with the turntable 1 to the loading and unloading station, it is opposite to the power source 17.

[0037] Furthermore, the horizontal section of the “┓”-shaped base 2 is provided with horizontal linear guide rails 10 that slide in cooperation with the two “┓”-shaped locking parts 5 respectively, and the two “┓”-shaped locking parts 5 are respectively provided with clamping blocks 11.

[0038] Furthermore, the clamping block 11 and the "┓"-shaped locking part 5 are fixedly installed by bolts, and an elastic buffer layer is provided on the clamping surface of the clamping block 11.

[0039] Furthermore, the locking part driving mechanism 8 includes a driving block 81 that slides with the vertical linear guide rail 12 on the vertical section of the "┓"-shaped seat 2. The driving block 81 is symmetrically provided with two inclined guide grooves 82. The distance between the two upper ends of the two inclined guide grooves 82 is smaller than the distance between the two lower ends. The two inclined guide grooves 82 slide with the sliding pins 83 fixed on the vertical sections of the two "┓"-shaped locking parts 5, respectively.

[0040] Furthermore, each of the two “┓”-shaped locking parts 5 is provided with a fixing pin 84, and the two fixing pins 84 are connected by a tension spring 85.

[0041] Furthermore, the power source 17 is a hydraulic cylinder or a pneumatic cylinder, and the end of the telescopic shaft of the hydraulic cylinder or pneumatic cylinder is provided with a wear-resistant pad 13 that contacts or separates from the bottom of the drive block 81.

[0042] Furthermore, a support mechanism 14 is provided between the locking groove 4 and the test port 3 on the turntable 1 for longitudinal support of the transformer when the transformer is not locked during loading and unloading. The support mechanism 14 includes a support plate 141 and a synchronous drive mechanism 15 for driving the support plate 141 to or from the position below the transformer clamping position in the locking groove 4. The two sides of the support plate 141 are slidably engaged with the sliding grooves 18 on both sides of the locking groove 4 through sliding bosses 142.

[0043] Furthermore, the synchronous drive mechanism 15 includes drive racks 151 respectively disposed on both sides of the support plate 141. The two drive racks 151 mesh with drive gears 152 on both sides of the support plate 141. The two drive gears 152 are rotatably connected to the turntable 1 through gear shafts 153. On the side of the drive gear 152 opposite to the two "┓"-shaped locking parts 5, there are also synchronous racks 154 respectively meshing with them. The two synchronous racks 154 are fixedly connected to the two "┓"-shaped locking parts 5 through connecting rods 155.

[0044] Furthermore, the support plate 141 is provided with an upwardly extending limiting block 16 at the end away from the locking groove 4.

[0045] Furthermore, the limiting block 16 is fixedly connected to the support plate 141 by bolts, and both the support surface of the support plate 141 and the limiting surface of the limiting block 16 are provided with elastic buffer pads.

[0046] The working principle of this invention is as follows: When the robot arm moves the transformer under test to the loading and unloading station and places it above the testing station, the power source 17 is started. The power source 17 drives the drive block 81 in the locking part drive mechanism 8, so that the drive block 81 moves upward along the vertical linear guide rail 12, thereby causing the inclined guide groove 82 on the drive block 81 to move relative to the sliding pin 83. This forces the two sliding pins 83 to slide relative to the inclined guide groove 82 from the end with a smaller distance to the end with a larger distance, thereby driving the two "┓"-shaped locking parts 5, which are fixedly connected to the two sliding pins 83, to move in the opposite direction along the horizontal linear guide rail 10, so that the clamping blocks 11, which are fixed on the "┓"-shaped locking parts 5, are separated to a sufficient distance. Subsequently, the robotic arm places the transformer into the locking groove 4 of the "┓"-shaped base 2; at the same time, the control power source 17 is separated from the locking part drive mechanism 8 and returns to its initial state. The locking part drive mechanism 8 automatically resets, that is, the tension spring 85 in the locking part drive mechanism 8 uses its own elasticity to make the two fixing pins 84 automatically move closer to each other, thereby driving the two "┓"-shaped locking parts 5 to move towards each other, so that the two clamping blocks 11 at their ends can maintain a closed state without relying on any power source 17 to realize the automatic locking and fixing operation of the transformer, ensuring the positional accuracy and stability of the transformer during the testing process.

[0047] Since the insulating plate 6 is fixed on the lifting plate 21, and the lifting plate 21 is fixedly connected to the output shaft of the lifting cylinder 19 fixed on the base 9, the lifting plate 21 is also axially slidingly engaged with the guide rod 20 fixed on the base 9 and parallel to the extension and retraction direction of the lifting cylinder 19. During testing, the lifting cylinder 19 is activated, driving the insulating plate and the test probe 7 on it to rise until the test probe contacts the test part of the electronic transformer fixed in the locking groove 4, thus realizing the transformer testing operation. After the test is completed, the lifting cylinder 19 drives the insulating plate 6 and the test probe 7 on it to descend and reset. Then, the turntable 1 is controlled to rotate, so that the transformer under test passes through the corresponding workstations of each testing process in sequence for testing until the last process is completed. During the entire testing process, the power source 17 does not need to be restarted again. When all processes are tested and the transformer reaches the loading and unloading workstation again, the power source 17 is restarted again, and the locking part drive mechanism 8 drives the two "┓"-shaped locking parts 5 to move in the opposite direction again, releasing the transformer so that the robot can take it out. Since the power source 17 is only used to control the opening action of the two "┓"-shaped locking parts 5 during the loading and unloading process, and the transformer only needs to be kept in a clamped state under the action of the locking part drive mechanism 8 in all testing processes, the locking part drive mechanism 8 does not need to be equipped with a separate clamping power source 17, nor does it need to be set up at each testing station to control the clamping of the transformer, which greatly simplifies the equipment structure and reduces maintenance costs.

[0048] In addition, the support mechanism 14 provides longitudinal support for the unlocked transformer during the loading and unloading process, preventing it from tilting or falling before clamping or after release, thereby effectively improving the safety and reliability of loading and unloading operations. The support plate 141 is linked to the action of the "┓"-shaped locking part 5 through a synchronous drive mechanism. The sliding bosses 142 on both sides of the support plate 141 slide along the locking groove 4 in the direction of entering or leaving the locking groove 4, ensuring that its position is perfectly coordinated with the timing of clamping and releasing the transformer. That is, before the transformer is clamped in the locking groove 4, the support plate 141 automatically reaches below the transformer clamping position to provide support; after the transformer is clamped, the support plate 141 promptly withdraws from the clamping area, ensuring that there is no interference between the test surface of the transformer and the test probes 7 below each test station during the process of the transformer being clamped and tested at each test station, further ensuring the accuracy and safety of the transformer test.

Claims

1. A multi-size locking mechanism for transformer handling, characterized in that: The system includes a "┓"-shaped base (2) fixedly connected to the turntable (1). The horizontal surface of the "┓"-shaped base (2) is provided with a locking groove (4) opposite to the test port (3) on the turntable (1). The two sides of the locking groove (4) are respectively provided with "┓"-shaped locking parts (5) that can move in opposite directions. The locking groove (4) is opposite to the test probe (7) installed on the insulating plate (6) fixed at the bottom of the turntable (1) and opposite to the test port (3) on the turntable (1). Both "┓"-shaped locking parts (5) are connected to the locking part driving mechanism (8) for driving them to move in opposite directions. The system also includes a power source (17) set on the base (9) at the bottom of the turntable (1). The power source (17) is located at the loading and unloading station. When the locking part driving mechanism (8) rotates with the turntable (1) to the loading and unloading station, it is opposite to the power source (17).

2. The transformer handling multi-size locking mechanism according to claim 1, characterized in that: The horizontal section of the "┓"-shaped seat (2) is provided with horizontal linear guide rails (10) that slide in cooperation with the two "┓"-shaped locking parts (5), and clamping blocks (11) are provided on the two "┓"-shaped locking parts (5).

3. The transformer handling multi-size locking mechanism according to claim 2, characterized in that: The clamping block (11) and the "┓"-shaped locking part (5) are fixedly installed by bolts, and an elastic buffer layer is provided on the clamping surface of the clamping block (11).

4. The transformer handling multi-size locking mechanism according to claim 1, characterized in that: The locking part drive mechanism (8) includes a drive block (81) that slides with a vertical linear guide rail (12) on the vertical section of the "┓" shaped seat (2). The drive block (81) is symmetrically provided with two inclined guide grooves (82). The distance between the two upper ends of the two inclined guide grooves (82) is smaller than the distance between the two lower ends. The two inclined guide grooves (82) slide with sliding pins (83) fixed on the vertical sections of the two "┓" shaped locking parts (5).

5. The transformer handling multi-size locking mechanism according to claim 4, characterized in that: The two “┓” shaped locking parts (5) are also provided with fixing pins (84), and the two fixing pins (84) are connected by tension springs (85).

6. The transformer handling multi-size locking mechanism according to claim 5, characterized in that: The power source (17) is a hydraulic cylinder or a pneumatic cylinder, and the end of the telescopic shaft of the hydraulic cylinder or pneumatic cylinder is provided with a wear-resistant pad (13) that contacts or separates from the bottom of the drive block (81).

7. The transformer handling multi-size locking mechanism according to claim 1, characterized in that: A support mechanism (14) is provided between the locking groove (4) and the test port (3) on the turntable (1) for longitudinal support of the transformer when the transformer is not locked during loading and unloading. The support mechanism (14) includes a support plate (141) and a synchronous drive mechanism (15) for driving the support plate (141) to reach or leave the position below the transformer clamping position in the locking groove (4). The two sides of the support plate (141) slide with the sliding grooves (18) on both sides of the locking groove (4) through sliding bosses (142).

8. The transformer handling multi-size locking mechanism according to claim 7, characterized in that: The synchronous drive mechanism (15) includes drive racks (151) respectively disposed on both sides of the support plate (141). The two drive racks (151) mesh with drive gears (152) on both sides of the support plate (141). The two drive gears (152) are rotatably connected to the turntable (1) through gear shafts (153). The side of the drive gear (152) opposite to the two "┓" shaped locking parts (5) is also provided with synchronous racks (154) respectively meshing with them. The two synchronous racks (154) are fixedly connected to the two "┓" shaped locking parts (5) respectively through connecting rods (155).

9. The transformer handling multi-size locking mechanism according to claim 8, characterized in that: The support plate (141) has an upwardly extending limiting block (16) at one end away from the locking groove (4).

10. The transformer handling multi-size locking mechanism according to claim 9, characterized in that: The limiting block (16) and the support plate (141) are fixedly connected by bolts. Both the support surface of the support plate (141) and the limiting surface of the limiting block (16) are provided with elastic buffer pads.

Images