Necking angle steel beam for transformer substation steel framework and connecting plate and machining device of necking angle steel beam

Abstract

The utility model provides a transformer substation steel framework necking angle steel beam and connecting plate and processing device thereof, the connecting plate comprises a main connecting plate, one end of the main connecting plate is a free end, the other end of the main connecting plate is provided with a bending plate, the main connecting plate and the bending plate are in an integrated structure, n notches are arranged on the bending plate, n is an integer greater than or equal to 1, and n is an integer greater than or equal to 1. The n notches divide the bent plate into n + 1 auxiliary connecting plates, the fire bending angles of the adjacent auxiliary connecting plates are different, and filling plates are welded to the notches. The machining device comprises a support, a base plate, a first bottom plate, a connecting rod and a second bottom plate, and an elastic limiting piece is arranged on the second bottom plate. Through the structural arrangement of the connecting plate, the problem that a gap is too large after the connecting plate of the necking angle steel beam and the auxiliary rod are assembled is effectively solved; and the structural arrangement of the machining device facilitates rapid positioning and welding of the filling plate, and the machining efficiency of the connecting plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer substation steel frame, in particular to a shrink angle steel beam used for transformer substation steel frame and a connecting plate and a processing device thereof. Background Art

[0002] With the acceleration of the pace of national power construction, the demand for substation steel frames has also increased significantly. Beams, as an important component of substation steel frames, are usually divided into two categories: straight beams and tapered beams. On this basis, according to the actual force and design requirements, the main materials of the beams are different, and they are further subdivided into two categories: angle steel beams and steel tube beams.

[0003] For the necked beam, because the upper chord and the necked rod are not in the same plane, there will be problems such as too large gaps between the connecting plate and the auxiliary angle steel (abbreviated as: auxiliary rod) after being assembled according to the design drawings. Patent document CN218117383U discloses a necked steel tube beam structure. In view of the above problems, the structure adjusts the installation angles of the upper connecting plate and the lower connecting plate, but this is not applicable to the necked angle steel beam. In addition, because the upper chord and the necked rod of the necked angle steel beam are both angle steels, the above gap problem is more complicated. For example, if the same connecting plate is connected to three auxiliary rods, there are only two non-coplanar situations in the necked steel tube beam, but there are three non-coplanar situations in the necked angle steel beam. Utility Model Content

[0004] The utility model proposes a tapered angle steel beam for a steel frame of a transformer substation, a connecting plate and a processing device thereof. The structural setting of the connecting plate effectively solves the problem of excessive gap between the connecting plate and the auxiliary rod of the tapered angle steel beam after assembly; the structural setting of the processing device facilitates the rapid positioning and welding of the filling plate, thereby improving the processing efficiency of the connecting plate.

[0005] The technical solution of the utility model is implemented as follows: a connecting plate for a steel frame of a transformer substation with a tapered angle steel beam, comprising a main connecting plate, one end of the main connecting plate being a free end, and the other end being provided with a bending plate, the main connecting plate and the bending plate being an integral structure, n notches being provided on the bending plate, n being an integer ≥1, the n notches dividing the bending plate into n+1 auxiliary connecting plates, the bending angles of adjacent auxiliary connecting plates being different, and filler plates being welded at the notches.

[0006] Furthermore, the filler plate passes through the notch vertically, and the width H of the filler plate is greater than the thickness h of the notch. The setting of the filler plate width facilitates the auxiliary connecting plates on both sides of the filler plate that are not coplanar to be welded and fixed to the filler plate.

[0007] Furthermore, both the main connecting plate and the auxiliary connecting plate are provided with connecting holes, and the setting of the connecting holes facilitates the connection between the connecting plate and the angle steel beam bolts.

[0008] A tapered angle steel beam for a transformer substation steel frame comprises an upper chord and a tapered rod, a plurality of auxiliary rods are arranged between the upper chord and the tapered rod, the upper chord, the tapered rod and the auxiliary rod are all angle steels, the upper chord and the tapered rod are provided with the connecting plates, and the ends of the auxiliary rods are connected to the corresponding connecting plates.

[0009] Furthermore, the main connecting plate is placed on the inner side of the side wall of the upper chord rod or the necking rod and is connected to the side wall by bolts. Auxiliary rods are provided on both sides of the auxiliary connecting plate, and the auxiliary rods and the auxiliary connecting plate are connected by bolts.

[0010] A processing device for the connecting plate includes a bracket, a fixed seat is rotatably arranged on the bracket, the fixed seat includes a horizontal base plate, a plurality of positioning screws are fixed on the upper end of the base plate, and positioning nuts are screwed on the positioning screws. One end of the base plate is rotatably connected to the bracket through a rotating shaft, and the lower side of the other end is fixed with an upwardly inclined first bottom plate, a connecting rod and a second bottom plate in sequence, and an elastic stopper is arranged on the second bottom plate. The lower end surface of the filling plate is positioned by the arrangement of the first bottom plate and the second bottom plate, and the elastic stopper is positioned with the end of the filling plate.

[0011] Furthermore, a positioning pin is inserted into the rotating shaft, and a positioning hole is provided on the bracket to cooperate with the positioning pin. The cooperation between the positioning pin and the positioning hole facilitates the restriction of the rotation of the rotating shaft, thereby preventing the rotating shaft from rotating during the welding process.

[0012] Furthermore, the elastic limiter includes a limit plate, a slide rod, a spring and a support plate. The support plate is fixed to the upper end of the second base plate. The limit plate is located on the side of the support plate close to the connecting rod. One end of the slide rod is connected to the limit plate, and the other end slides through the spring and the support plate.

[0013] Beneficial effects of the utility model:

[0014] The utility model is connected to the inner wall bolts of the angle steel of the upper chord or the shrinking rod through the main connecting plate, and is connected to the auxiliary rod bolts through the bending plate. The bending plate is divided into auxiliary connecting plates with different bending angles, which effectively solves the problem of excessive gap between the connecting plate and the auxiliary rod of the shrinking angle steel beam after assembly. In addition, filling plates are welded at the notches between adjacent auxiliary connecting plates, and the non-coplanar auxiliary connecting plates are connected together through the filling plates, thereby enhancing the strength of the connecting plates.

[0015] The processing device of the connecting plate of the utility model fixes the main connecting plate through a base plate, a positioning screw and a positioning nut, and realizes rapid positioning of the filling plate through the cooperation of the first bottom plate, the second bottom plate and the elastic limiter, which facilitates the welding of the filling plate and the adjacent auxiliary connecting plate and improves the processing efficiency of the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the main view of the connecting plate;

[0018] Figure 2 for Figure 1 Right view of;

[0019] Figure 3 Schematic diagram of the lower end surface structure of the connecting plate;

[0020] Figure 4 It is a three-dimensional diagram of the reduced angle steel beam;

[0021] Figure 5 It is the front view of the processing device;

[0022] Figure 6 A top view of the fixing seat.

[0023] Main connecting plate 1, bending plate 2, notch 3, auxiliary connecting plate 4, filling plate 5, connecting hole 6, upper chord rod 7, shrinking rod 8, auxiliary rod 9, bracket 10, base plate 11, positioning screw 12, positioning nut 13, rotating shaft 14, positioning pin 15, positioning hole 16, first bottom plate 17, connecting rod 18, second bottom plate 19, limiting plate 20, sliding rod 21, spring 22, support plate 23. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1-3As shown, a connecting plate for a steel frame of a transformer substation with a reduced angle steel beam comprises a main connecting plate 1, one end of the main connecting plate 1 is a free end, and the other end is provided with a bending plate 2, the main connecting plate 1 and the bending plate 2 are an integral structure, and the bending plate 2 is provided with n notches 3, where n is an integer ≥1, such as 1, 2, etc. The n notches 3 divide the bending plate 2 into n+1 auxiliary connecting plates 4, if n is 1, there are 2 auxiliary connecting plates 4, if n is 2, there are 3 auxiliary connecting plates 4, the bending angles of adjacent auxiliary connecting plates 4 are different, that is, the adjacent auxiliary connecting plates 4 are not on the same plane, if there are 3 auxiliary connecting plates 4, the bending angles of the 3 auxiliary connecting plates 4 are 21.3°, 22.9° and 24.5° respectively.

[0027] A filling plate 5 is welded at the notch 3, and the filling plate 5 vertically passes through the notch 3. The width H of the filling plate 5 is greater than the thickness h of the notch 3, and the length of the filling plate 5 is consistent with the length of the notch 3. The two adjacent and non-coplanar auxiliary connecting plates 4 are connected together by the filling plate 5 to ensure the overall strength of the connecting plate. The main connecting plate 1 and the auxiliary connecting plate 4 are both provided with connecting holes 6, and the setting of the connecting holes 6 facilitates the connection of the connecting plate with the shrink angle steel beam bolts.

[0028] Example 2

[0029] like Figure 4 As shown, a steel beam with a reduced angle for a steel frame of a transformer substation includes an upper chord 7 and a reduced rod 8, a plurality of auxiliary rods 9 are arranged between the upper chord 7 and the reduced rod 8, the upper chord 7, the reduced rod 8 and the auxiliary rod 9 are all angle steels, the angle steel tips of the upper chord 7 and the reduced rod 8 face outwards, the upper chord 7 and the reduced rod 8 are provided with the connecting plate described in Example 1, wherein the main connecting plate 1 is placed on the inner side of the side wall of the upper chord 7 or the reduced rod 8, and is connected to the side wall by bolts, auxiliary rods 9 are arranged on both sides of the auxiliary connecting plate 4, and the ends of the auxiliary rods 9 on both sides are connected to the auxiliary connecting plate 4 by bolts. The fire bending angle of the auxiliary connecting plate 4 is designed according to the position of the auxiliary rod 9, so that the auxiliary connecting plate 4 and the auxiliary rod 9 fit together.

[0030] Example 3

[0031] like Figure 5 and 6 As shown, the processing device of the connecting plate described in Example 1 includes a bracket 10, a fixing seat is arranged on the bracket 10, and the fixing seat includes a horizontal base plate 11. A plurality of positioning screws 12 are fixed to the upper end of the base plate 11. The positioning screws 12 correspond to the connecting holes 6 of the main connecting plate 1, and the positioning screws 12 are threaded with positioning nuts 13.

[0032] A rotating shaft 14 is fixed to one end of the base plate 11, and the rotating shaft 14 is rotatably connected to the bracket 10 through a bearing. A positioning pin 15 is inserted on the rotating shaft 14, and a positioning hole 16 matching the positioning pin 15 is provided on the bracket 10. It is necessary to rotate the rotating shaft 14, pull the positioning pin 15 out of the positioning hole 16, and then rotate the rotating shaft 14 180°, and reinsert the positioning pin 15 into the positioning hole 16 through the rotating shaft 14 to avoid the rotating shaft 14 from rotating during welding, which affects the welding quality.

[0033] The lower side of the other end of the base plate 11 is fixed with an upwardly inclined first bottom plate 17, a connecting rod 18 and a second bottom plate 19 in sequence. The width of the connecting rod 18 is smaller than that of the first bottom plate 17 and the second bottom plate 19. The position of the connecting rod 18 is staggered with the position of the filling plate 5 to avoid affecting the welding between the filling plate 5 and the back of the bending plate 2.

[0034] An elastic limiter is provided on the second bottom plate 19, and the elastic limiter includes a limiter plate 20, a slide rod 21, a spring 22 and a support plate 23. The support plate 23 is fixed to the upper end of the second bottom plate 19, and the limiter plate 20 is located on the side of the support plate 23 close to the connecting rod 18. One end of the slide rod 21 is connected to the limiter plate 20, and the other end of the slide rod 21 slides through the spring 22 and the support plate 23 in sequence, and is screwed to the limiter block.

[0035] The method of using the processing device is as follows: the main connecting plate 1 is placed on the upper end of the base plate 11, the connecting hole 6 on the main connecting plate 1 is sleeved on the positioning screw 12, and the positioning nut 13 is tightened on the positioning screw 12 to fix the main connecting plate 1; then the filling plate 5 is inserted into the notch 3, one end of the lower side of the filling plate 5 is abutted against the first bottom plate 17, and the other end is abutted against the second bottom plate 19, and the end of the filling plate 5 away from the main connecting plate 1 is abutted against the limit plate 20 to achieve the fixation of the filling plate 5, and the filling plate 5 is welded and fixed to the upper side of the adjacent auxiliary connecting plate 4; finally, the positioning pin 15 is pulled out, the rotating shaft 14 is rotated, and the fixing seat is rotated 180° so that its bottom faces upward, and the lower side of the filling plate 5 and the adjacent auxiliary connecting plate 4 are welded and fixed to complete the processing of the connecting plate.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection plate for the shrink angle steel beam of a substation steel frame, characterized in that: It includes a main connecting plate, one end of which is a free end and the other end is provided with a bending plate. The main connecting plate and the bending plate are an integrated structure. The bending plate is provided with n notches, n is an integer ≥1, and the n notches divide the bending plate into n+1 auxiliary connecting plates. The bending angles of adjacent auxiliary connecting plates are different, and filling plates are welded at the notches.

2. A connection plate for the shrink angle steel beam of a substation steel frame according to claim 1, characterized in that: The filling plate passes through the notch vertically, and the width H of the filling plate is greater than the thickness h of the notch.

3. The connection plate for the shrink angle steel beam of the substation steel frame according to claim 1, characterized in that: Both the main connecting plate and the auxiliary connecting plate are provided with connecting holes.

4. A steel beam with a reduced opening for a steel frame of a substation, comprising an upper chord and a reduced opening, a plurality of auxiliary rods being arranged between the upper chord and the reduced opening, the upper chord, the reduced opening and the auxiliary rods being all angle steels, characterized in that: The upper chord rod and the necking rod are both provided with a connecting plate as described in any one of claims 1 to 3, and the ends of the auxiliary rods are connected to the corresponding connecting plates.

5. The shrink angle steel beam for a transformer substation steel frame according to claim 4, characterized in that: The main connecting plate is placed on the inner side of the side wall of the upper chord rod or the necking rod, and is connected to the side wall by bolts; auxiliary rods are provided on both sides of the auxiliary connecting plate, and the auxiliary rods and the auxiliary connecting plate are connected by bolts.

6. A processing device for processing the connecting plate according to any one of claims 1 to 3, comprising a bracket, characterized in that: A fixed seat is arranged on the bracket, and the fixed seat includes a horizontal base plate, a plurality of positioning screws are fixed on the upper end of the base plate, and a positioning nut is screwed on the positioning screw. One end of the base plate is rotatably connected to the bracket through a rotating shaft, and an upwardly inclined first base plate, a connecting rod and a second base plate are fixed to the lower side of the other end in sequence, and an elastic limiter is arranged on the second base plate.

7. The processing device according to claim 6, characterized in that: A positioning pin is inserted on the rotating shaft, and a positioning hole matched with the positioning pin is arranged on the bracket.

8. The processing device according to claim 6 or 7, characterized in that: The elastic limiter includes a limit plate, a slide rod, a spring and a support plate. The support plate is fixed to the upper end of the second bottom plate. The limit plate is located on the side of the support plate close to the connecting rod. One end of the slide rod is connected to the limit plate, and the other end slides through the spring and the support plate.

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