Narrow space interelectrode connection punching device

Abstract

The utility model provides a narrow space interelectrode connection punching device. The narrow space interelectrode connection punching device comprises a supporting seat, an adjusting plate, a fine adjusting bolt, a main adjusting bolt and a locking nut. The supporting seat is of a rectangular structure with the length-width ratio larger than 2, the adjusting plate is a rectangular plate matched with the supporting seat in shape, and at least four corners of the adjusting plate are installed at the upper end of the supporting seat through the fine adjustment bolts and used for adjusting the distance between the four corners of the adjusting plate and the supporting seat so as to clamp an inter-electrode copper bar. A guide hole is formed in the center of the adjusting plate and used for allowing a drill rod of a drilling tool to penetrate through and punching the inter-electrode copper bar. One end of the main adjusting bolt is in threaded connection with the bottom end of the supporting seat, and a locking nut is mounted at the other end of the main adjusting bolt, so that the supporting seat and the main adjusting bolt are integrally supported on a temporary supporting surface through the matching of the locking nut and the main adjusting bolt. The device has the advantages that the drilling direction is relatively stable, and the drilling difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hydropower station equipment construction technology, specifically, to a hole-drilling device for inter-electrode connection in a confined space. Background Technology

[0002] In the motor products of hydroelectric facilities, the magnetic poles usually need to be connected together. However, due to the large size of the equipment, local vibrations may occur during operation. Therefore, a flexible connection method is required to ensure safety.

[0003] The specific operation process of the existing technology is as follows: First, adjust the connection position and gap of the copper busbar between the two magnetic poles. After the position is adjusted properly, use clamp bolts for temporary fixation, and then perform manual drilling.

[0004] The drawback of this operating method is:

[0005] If clamping bolts are to be clamped stably, the clamping area is usually large and the gap is small, resulting in very limited drilling space and high operational difficulty.

[0006] The copper busbar between the magnetic poles is made of a soft material, and even if it is clamped tightly, the lack of support makes it difficult to control its orientation.

[0007] To solve the existing connection problem between magnetic poles, a new connection drilling device needs to be developed to overcome the above problems. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a narrow-space inter-electrode drilling device that offers relatively stable drilling orientation and reduces drilling difficulty.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a hole-drilling device for inter-electrode connection in a narrow space, including a support base, an adjusting plate, a fine-tuning bolt, a main adjusting bolt, and a locking nut;

[0010] The support base has a rectangular structure with an aspect ratio greater than 2. The adjusting plate is a rectangular plate adapted to the shape of the support base. At least four corners of the adjusting plate are installed on the upper end of the support base by the fine-tuning bolts to adjust the distance between the four corners of the adjusting plate and the support base so as to clamp the inter-electrode copper busbar.

[0011] A guide hole is opened at the center of the adjustment plate for drilling holes in the inter-electrode copper busbar through the drill rod of the drill bit.

[0012] One end of the main adjusting bolt is threaded to the bottom end of the support base, and the other end of the main adjusting bolt is equipped with a locking nut, which is used to support the support base and the main adjusting bolt together on a temporary support surface through the cooperation of the locking nut and the main adjusting bolt.

[0013] Based on the above, the material of the adjusting plate is iron plate or steel plate, and the thickness of the adjusting plate is ≥3mm.

[0014] Based on the above, the support base includes a base and a U-shaped platform connected to the bottom end of the base. A positioning light hole is provided on the back of the base, and the top end of the main adjusting bolt is restricted in the light hole. A threaded hole is provided on the U-shaped platform, and the main adjusting bolt is threadedly connected to the threaded hole.

[0015] Based on the above, the U-shaped platform and the base are integrally formed.

[0016] As mentioned above, the base is made of cast iron.

[0017] Based on the above, an upper locking nut is provided on the upper part of the main adjusting bolt corresponding to the U-shaped platform.

[0018] Based on the above, the upper locking nut is a double nut assembly.

[0019] Based on the above, a spring washer is provided at the locking nut.

[0020] Based on the above, it also includes a redundant bending fixture, which includes two long strip clamps and two connecting bolts. The two ends of the long strip clamps are respectively provided with screw holes. The two ends of the two long strip clamps are connected and fixed together by the connecting bolts. The gap between the two long strip clamps is used to assist in clamping the inter-electrode copper busbar.

[0021] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model is specially designed with a drilling device for the connection process between magnetic poles. When in use, the copper busbar between the poles can be temporarily fixed and aligned by relying on the temporary support surface and the device. Then, a guide hole is opened at the center of the adjustment plate to facilitate drilling and reduce the difficulty of the entire drilling operation.

[0022] Furthermore, the main adjusting bolt is used to adjust the distance between the support base and the temporary support surface, while the fine adjusting bolt is used to adjust the clamping gap. The two work together to achieve the stability of the inter-electrode copper busbar reinforcement.

[0023] Furthermore, a redundant bending clamp is added, which forms a clamping structure through two long strip clamping plates and two connecting bolts, for clamping the inter-electrode copper busbar in areas outside the device. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of a hole-punching device for inter-electrode connection in a confined space, as described in this utility model.

[0025] Figure 2 This is a structural diagram of a hole-punching device for inter-electrode connection in a confined space, as described in this utility model.

[0026] Figure 3 This is a schematic diagram of the redundant bending fixture in this utility model.

[0027] In the diagram: 1. Support base; 2. Adjusting plate; 3. Fine adjustment bolt; 4. Main adjustment bolt; 5. Locking nut; 6. Inter-electrode copper busbar; 7. Guide hole; 8. Temporary support surface; 9. Upper locking nut; 10. Spring washer; 11. Base; 12. U-shaped platform; 13. Long strip clamp; 14. Connecting bolt. Detailed Implementation

[0028] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0029] like Figures 1-3 As shown, a hole-drilling device for inter-electrode connection in a confined space includes a support base 1, an adjusting plate 2, a fine-tuning bolt 3, a main adjusting bolt 4, and a locking nut 5.

[0030] The support base 1 has a rectangular structure with an aspect ratio greater than 2. The adjustment plate 2 is a rectangular plate adapted to the shape of the support base 1. At least four corners of the adjustment plate 2 are installed on the upper end of the support base 1 by the fine adjustment bolts 3 to adjust the distance between the four corners of the adjustment plate 2 and the support base 1 so as to clamp the inter-electrode copper busbar. In this embodiment, the material of the adjustment plate 2 is iron plate or steel plate, and the thickness of the adjustment plate 2 is ≥3mm.

[0031] The adjusting plate 2, the fine-tuning bolt 3, and the support base 1 work together to form the main clamping structure of the inter-electrode copper busbar 6. Since the inter-electrode space is very narrow, a rectangular structure with a length-to-side ratio greater than 2 is used to meet the needs of the narrow space so as to fully clamp the inter-electrode copper busbar 6.

[0032] The center of the adjusting plate 2 has a guide hole 7 for the drill rod of the drill bit to pass through and drill holes in the inter-electrode copper busbar 6. The drill bit is a commonly used drill bit, and it is necessary to drill holes in the overlapping part of the inter-electrode copper busbar 6 through the guide hole 7.

[0033] One end of the main adjusting bolt 4 is threaded to the bottom end of the support base 1, and the other end of the main adjusting bolt 4 is equipped with a locking nut 5, which is used to support the support base 1 and the main adjusting bolt 4 together on a temporary support surface 8 through the cooperation of the locking nut 5 and the main adjusting bolt 4.

[0034] Specifically, in this embodiment, the support base 1 includes a base 11 and a U-shaped platform 12 connected to the bottom end of the base. The U-shaped platform 12 and the base 11 are integrally formed, and the base is made of cast iron.

[0035] A positioning light hole is provided on the back of the base 11. The top of the main adjusting bolt 4 is restricted in the light hole. A threaded hole is opened on the U-shaped platform 12. The main adjusting bolt 4 is threadedly connected to the threaded hole. An upper locking nut 9 is provided on the upper part of the main adjusting bolt 4 corresponding to the U-shaped platform 12. The upper locking nut is a double nut assembly.

[0036] A spring washer 10 is provided at the locking nut 5 for locking and fixing.

[0037] Working principle explanation:

[0038] The inter-pole copper busbar 6 is a connecting copper busbar set between two adjacent magnetic poles. It usually needs to be drilled on site and then connected together by a connecting structure. On the one hand, it plays a role in traction and fixation, and on the other hand, it constrains the distance between the two magnetic poles to keep it stable.

[0039] Because the distance between the two magnetic poles is extremely small, it is difficult to install them properly with ordinary auxiliary tools, so the device in this solution is required.

[0040] Specifically, first, adjust the adjusting plate 2 to a wider gap, and place a temporary support behind the gap. The surface of the support forms a temporary support surface, and a hole is made on the temporary support surface. The size of the hole is larger than the main adjusting bolt 4 and smaller than the locking nut 5, which is used to support the device.

[0041] Then, the two inter-electrode copper busbars are combed and stacked together, and the device is installed in place so that the inter-electrode copper busbar 6 is located between the adjusting plate 2 and the support base 1. The stacking state of the two inter-electrode copper busbars is combed, and then the inter-electrode copper busbar is locked by adjusting the adjusting plate 2.

[0042] A magnetic drill is manually operated to drill through the guide hole 7 into the stacked area of ​​the inter-electrode copper busbar 6.

[0043] After drilling is completed, remove the device and connect the appropriate connecting device to the position to complete the connection and installation of the inter-electrode copper busbar 6.

[0044] In other embodiments, a redundant bending fixture is also included, which includes two long strip clamping plates 13 and two connecting bolts 14. The two ends of the long strip clamping plates 13 are respectively provided with screw holes. The two ends of the two long strip clamping plates 13 are connected and fixed together by the connecting bolts 14. The gap between the two long strip clamping plates 13 is used to assist in clamping the inter-electrode copper busbar.

[0045] This redundant bending fixture can serve as an auxiliary fixation tool during drilling, and it can also be used for fixation after the support base and adjustment plate are removed, making it convenient to install the connectors.

[0046] Finally, it should be noted that: the preferred embodiments of this patent have been described in detail above, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A hole-drilling device for inter-electrode connection in a confined space, characterized in that: Includes support base, adjusting plate, fine-tuning bolt, main adjusting bolt and locking nut; The support base has a rectangular structure with an aspect ratio greater than 2. The adjusting plate is a rectangular plate adapted to the shape of the support base. At least four corners of the adjusting plate are installed on the upper end of the support base by the fine-tuning bolts to adjust the distance between the four corners of the adjusting plate and the support base so as to clamp the inter-electrode copper busbar. A guide hole is opened at the center of the adjustment plate for drilling holes in the inter-electrode copper busbar through the drill rod of the drill bit. One end of the main adjusting bolt is threaded to the bottom end of the support base, and the other end of the main adjusting bolt is equipped with a locking nut, which is used to support the support base and the main adjusting bolt together on a temporary support surface through the cooperation of the locking nut and the main adjusting bolt.

2. The hole-drilling device for inter-electrode connection in a confined space according to claim 1, characterized in that: The adjusting plate is made of iron plate or steel plate, and the thickness of the adjusting plate is ≥3mm.

3. The hole-drilling device for inter-electrode connection in a confined space according to claim 2, characterized in that: The support base includes a base and a U-shaped platform connected to the bottom end of the base. A positioning light hole is provided on the back of the base. The top end of the main adjusting bolt is restricted in the light hole. A threaded hole is provided on the U-shaped platform, and the main adjusting bolt is threadedly connected to the threaded hole.

4. The narrow space inter-electrode connection drilling device according to claim 3, characterized in that: The U-shaped platform and the base are integrally formed.

5. The hole-drilling device for inter-electrode connection in a confined space according to claim 4, characterized in that: The base is made of cast iron.

6. The hole-drilling device for inter-electrode connection in a confined space according to claim 5, characterized in that: The upper part of the main adjusting bolt is provided with an upper locking nut corresponding to the U-shaped platform.

7. The hole-drilling device for inter-electrode connection in a confined space according to claim 6, characterized in that: The upper locking nut is a double nut assembly.

8. The hole-drilling device for inter-electrode connection in a confined space according to claim 7, characterized in that: A spring washer is provided at the locking nut.

9. The hole-drilling device for inter-electrode connection in a confined space according to claim 1, characterized in that: It also includes a redundant bending fixture, which includes two long strip clamps and two connecting bolts. The two ends of the long strip clamps are respectively provided with screw holes. The two ends of the two long strip clamps are connected and fixed together by the connecting bolts. The gap between the two long strip clamps is used to assist in clamping the inter-electrode copper busbar.

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