An adjustable drilled angle steel frame for boiler frame in power plants

Abstract

The present invention relates to the technical field of angle steel drilling cradles, and discloses an adjustable drilling cradle for angle steel of a power plant boiler frame. The present invention comprises: a drilling cradle support, two fastening clamps slidably mounted on the drilling cradle support, both fastening clamps being threadedly mounted with a first fastening screw, two fastening clamp blocks slidably mounted on the drilling cradle support, both fastening clamp blocks being threadedly mounted with a second fastening screw, the two second fastening screws being transmission-connected, one end of each of the two second fastening screws being rotatably mounted with a butt plate, three support plates fixedly mounted on the drilling cradle support, the same waste collection mechanism being mounted on the three support plates, angle steel to be drilled being placed on the waste collection mechanism, and a drilling sleeve template being placed on the drilling cradle support. The present invention can achieve batch drilling by drilling according to the template, thereby improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of angle steel drilling jigs, in particular to an angle steel adjustable drilling jig of a power plant boiler rigid frame. Background Art

[0002] The rigid frame structure of the boiler in a power plant is different from conventional building steel structure products and non-standard pressure vessel products. It is a steel structure product system in itself. The rigid frame connections of single 350MW and 660MW boiler power plants are generally high-strength bolt connections. The main product structure types are: steel columns, steel beams, vertical supports, horizontal supports, stair supports and platform frames. The connections between steel columns and steel beams, steel beams and steel beams, steel columns and vertical supports, steel beams and vertical supports, steel beams and horizontal supports, etc. are all connected through connecting angle steels as intermediate bodies. Since angle steels are connected to other components by screws, screw holes need to be opened in the angle steels. The traditional method of drilling holes for angle steel connectors requires sawing and cutting the angle steels according to different cross-sectional specifications, lengths and connection hole positions, marking them and stacking them neatly separately; angle steels with the same cross-section, length and hole position are numbered, marked, punched and positioned together, and then a radial drilling machine is used to drill holes according to the hole diameter required by the drawing.

[0003] However, this traditional method is inefficient, and it is difficult to unify the error control standards when different people are working at the same time, which has a great impact on the production schedule and the quality is difficult to guarantee. The efficiency and quality of angle steel drilling are very important to the safety of engineering production and structural systems. Therefore, specifically for the problem of angle steel drilling, we summarized the experience, collected opinions from all parties, and designed an adjustable positioning drilling cradle to achieve the purpose of improving work efficiency and hole quality. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an angle steel adjustable drilling frame for a power plant boiler frame.

[0005] The present invention is implemented by the following technical scheme: a drilling tire frame support, two fastening clamps are slidably installed on the drilling tire frame support, and the two fastening clamps are threadedly installed with a first fastening screw, two fastening clamp blocks are slidably installed on the drilling tire frame support, and the two fastening clamp blocks are threadedly installed with a second fastening screw, the two second fastening screws are transmission connected, and one end of the two second fastening screws is rotatably installed with a support plate, three support plates are fixedly installed on the drilling tire frame support, and the same waste collection mechanism is installed on the three support plates, the waste collection mechanism places angle steel to be drilled, and a drilling sleeve template is placed on the drilling tire frame support.

[0006] As a further improvement of the above scheme, the drilling tire frame support includes a base, a long plate and three vertical plates are welded to the top of the base, one side of the three vertical plates are welded to the long plate, the long plate and the top of the three vertical plates are welded with the same top plate, and the bottom of the drilling sleeve template is in contact with the bottom of the top plate.

[0007] As a further improvement to the above solution, two long strips are fixedly mounted on the three vertical plates, and both long strips pass through the two fastening clamps and are slidably connected to the two fastening clamps.

[0008] As a further improvement of the above solution, a pressing pad is rotatably mounted on the bottom ends of the two first tightening screws.

[0009] As a further improvement of the above scheme, a groove frame is fixedly installed on the base, and two sliding rods are fixedly installed in the groove frame. The bottoms of the two fastening clamps extend into the groove frame and are slidably connected to the groove frame. The two sliding rods pass through the two fastening clamps and are slidably connected to the two fastening clamps.

[0010] As a further improvement of the above scheme, a sealing box is rotatably mounted on each of the two second fastening screws, and a first bevel gear is fixedly mounted on each of the two second fastening screws. A driving rod is rotatably mounted on the corresponding sealing box, and a driving tube is slidingly mounted on the driving rod. One end of the driving tube extends into the other sealing box and is rotatably connected to it. A second bevel gear is fixedly mounted on the end of the driving rod and the driving tube that is away from each other, and the two first bevel gears are respectively engaged with the two second bevel gears.

[0011] As a further improvement of the above solution, a wire groove is opened on one side of the driving rod, and a limiting block is fixedly installed on the inner wall of the driving tube. One side of the limiting block extends into the wire groove and is slidably connected to the wire groove.

[0012] As a further improvement of the above solution, two sliding holes are provided on the fastening clamp block, and telescopic rods are slidably installed in the two sliding holes. One end of the two telescopic rods extends out of the sliding holes and is fixedly connected to the abutment plate.

[0013] As a further improvement of the above solution, the waste collection mechanism includes an open box fixedly mounted on three support plates, and two drawers are slidably mounted in the open box.

[0014] As a further improvement of the above solution, the two first fastening screw rods and the two second fastening screw rods are each provided with an insertion hole, and a fastening wrench is slidably inserted into the corresponding two insertion holes.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention cooperates with the structures such as the drilling jig support, the fastening clamp table, the first fastening screw rod, the fastening clamp block, the second fastening screw rod, etc. to form a positioning drilling jig which makes it easier to drill holes in angle steel, facilitates the formulation of a unified standard, is easy to operate, and improves drilling efficiency; the drilling accuracy of the hole group is controlled according to the drilling sleeve template, ensures the quality of the hole, especially the accuracy of the group holes is guaranteed; the positioning drilling jig uses one side as the positioning end, which is convenient for the size positioning and measurement of the angle steel to be drilled, and the drilling sleeve template and the angle steel to be drilled can be conveniently fixed on the drilling jig support; batch drilling can be achieved by drilling holes in accordance with the template, except that the angle steel to be drilled needs to be fixed according to the reference point, which can save multiple operating procedures such as multiple measurements, hole numbers, marking, and sample punching, thereby greatly improving work efficiency; and the drilling of holes in the same batch of angle steels uses a drilling sleeve template as a standard, which can achieve perfect fit, meet the planned requirements of the perforation rate, and improve the progress of the project and the quality of the project;

[0017] By cooperating with the long strip and the two fastening clamps, and cooperating with the two fastening clamp blocks and the slot frame and the two slide bars, two sets of fastening mechanisms with adjustable positions are formed. This allows the two sets of fastening mechanisms to be adjusted according to the length of the drilling template and the angle steel to be drilled, thereby reducing the number of fastening mechanisms while ensuring the fastening effect;

[0018] By cooperating with the sealing box, the first bevel gear, the driving rod, the driving tube and the second bevel gear, the two second fastening screws can be adjusted in position and rotated synchronously at the same time. This makes it necessary to rotate only one of the second fastening screws when tightening the drilled angle steel, thereby reducing the operation steps for tightening the drilled angle steel, saving operation time and improving work efficiency to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the first overall structure of the angle steel adjustable drilled frame of the power plant boiler frame of the present invention;

[0020] Figure 2 This is a second overall structural diagram of the angle steel adjustable drilled frame of the power plant boiler frame of the present invention;

[0021] Figure 3 This is a schematic diagram of the first split structure of the angle steel adjustable drilled frame of the power plant boiler frame of the present invention;

[0022] Figure 4 This is a schematic diagram of a second split structure of the angle steel adjustable drilled frame of the power plant boiler frame of the present invention;

[0023] Figure 5 This is a schematic diagram of the third split structure of the angle steel adjustable drilled frame of the power plant boiler frame of the present invention;

[0024] Figure 6 This is a schematic diagram of the fourth split structure of the angle steel adjustable drilled frame of the power plant boiler frame of the present invention;

[0025] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of part A;

[0026] Figure 8 It is a partial cross-sectional schematic diagram of the disassembled structure of the angle steel adjustable drilling frame of the power plant boiler frame of the present invention;

[0027] Figure 9 This is a diagram showing the connection between angle steel and the boiler frame of a power plant.

[0028] Description of main symbols:

[0029] 1. Base; 2. Long board; 3. Vertical board; 4. Top board; 5. Long strip; 6. Tightening clamp; 7. First fastening screw; 8. Clamping pad; 9. Slot frame; 10. Sliding rod; 11. Tightening clamp block; 12. Second fastening screw; 13. Abutment plate; 14. Sealing box; 15. First bevel gear; 16. Driving rod; 17. Driving tube; 18. Second bevel gear; 19. Telescopic rod; 20. Support plate; 21. Open box; 22. Drawer; 23. Angle steel to be drilled; 24. Drilling template; 25. Tightening wrench. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] Please combine Figures 1 to 8 The angle steel adjustable drilling frame of the power plant boiler rigid frame of this embodiment includes: a drilling frame support, two fastening clamps 6 are slidably installed on the drilling frame support, and the two fastening clamps 6 are both threadedly installed with a first fastening screw 7, two fastening clamp blocks 11 are slidably installed on the drilling frame support, and the two fastening clamp blocks 11 are both threadedly installed with a second fastening screw 12, the two second fastening screws 12 are transmission connected, and one end of the two second fastening screws 12 is rotatably installed with a back plate 13, and three support plates 20 are fixedly installed on the drilling frame support. The three support plates 2 0 is installed with the same waste collection mechanism, on which angle steel 23 to be drilled is placed, and a drilling template 24 is placed on the drilling frame support. All hole group connection types in a power plant boiler frame project are cleaned up and classified (generally, there are few types of high-strength bolt holes in this type of product. Taking Puding Power Plant as an example, they are basically M24 high-strength bolts and 26mm diameter bolt holes. The spacing between holes and the spacing between group holes are very regular, and there are not many types). Then, a batch of templates are made according to the hole diameter and spacing of these bolt holes as templates and rulers for drilling.

[0032] The drilling cradle support includes a base 1, a long plate 2 and three vertical plates 3 are welded to the top of the base 1, one side of the three vertical plates 3 are welded to the long plate 2, the long plate 2 and the top of the three vertical plates 3 are welded to the same top plate 4, and the bottom of the drilling sleeve template 24 is in contact with the bottom of the top plate 4.

[0033] Through the above technical solution, the drilling cradle support is suitable for positioning drilling of all angle steels of L200 and below, and can cover the drilling operations of all types of angle steels undertaken in power plants.

[0034] Two long strips 5 are fixedly mounted on the three vertical plates 3 . The two long strips 5 both pass through the two fastening clamps 6 and are slidably connected to the two fastening clamps 6 .

[0035] Through the above technical solution, two rectangular through-holes are provided on each of the two fastening clamps 6, and the vertical height of the rectangular through-holes is greater than the long strip 5, which enables the fastening clamps 6 to not only slide left and right on the two long strips 5, but also move up and down to a certain extent. When the first fastening screw 7 is rotated to tighten the drilling sleeve template 24, the fastening clamp 6 will rise to a certain extent, and the bottom will contact the bottom of the top plate 4, so that when the fastening clamp 6 is performing the tightening work, the force applied is borne by the top plate 4, so that the long strip 5 will not be bent or deformed due to the tightening work.

[0036] The bottom ends of the two first tightening screw rods 7 are both rotatably mounted with a pressing pad 8 .

[0037] Through the above technical solution, in order to prevent the first fastening screw rod 7 from damaging the drilling sleeve template 24, a pressing pad 8 needs to be additionally provided between the first fastening screw rod 7 and the sleeve template.

[0038] A groove frame 9 is fixedly installed on the base 1, and two sliding rods 10 are fixedly installed in the groove frame 9. The bottoms of the two fastening clamps 11 extend into the groove frame 9 and are slidably connected to the groove frame 9. The two sliding rods 10 pass through the two fastening clamps 11 and are slidably connected to the two fastening clamps 11.

[0039] Through the above technical solution, the groove frame 9 cooperates with the upper slide bar 10, so that the two fastening clamps 11 can slide stably left and right on the drilling tire frame support.

[0040] A sealing box 14 is rotatably sleeved on the two second fastening screws 12, and a first bevel gear 15 is fixedly sleeved on the two second fastening screws 12. A driving rod 16 is rotatably installed on the corresponding sealing box 14, and a driving tube 17 is slidably sleeved on the driving rod 16. One end of the driving tube 17 extends into the other sealing box 14 and is rotatably connected thereto. A second bevel gear 18 is fixedly installed on the end of the driving rod 16 and the driving tube 17 that is away from each other, and the two first bevel gears 15 are respectively engaged with the two second bevel gears 18.

[0041] Through the above technical solution, the sealing box 14 is assembled from two upper and lower rectangular shells, which can not only isolate and protect the first bevel gear 15 and the second bevel gear 18, but also serve as a support for the driving rod 16 and the driving tube 17, so that the synchronous telescopic transmission mechanism composed of the driving rod 16 and the driving tube 17 can be stably connected to the two second fastening screw rods 12. The driving rod 16 cooperates with the driving tube 17, so that the two second fastening screw rods 12 can be synchronously driven and can also move left and right normally.

[0042] A wire groove is provided on one side of the driving rod 16 , and a limiting block is fixedly mounted on the inner wall of the driving tube 17 , with one side of the limiting block extending into the wire groove and being slidably connected to the wire groove.

[0043] Through the above technical solution, the wire trough is matched with the limiting block, so that the driving tube 17 and the driving rod 16 can maintain a telescopic sliding relationship and a synchronous rotation relationship at the same time.

[0044] The fastening clamp block 11 is provided with two sliding holes, in which telescopic rods 19 are slidably installed. One end of the two telescopic rods 19 extends out of the sliding holes and is fixedly connected to the abutment plate 13 .

[0045] Through the above technical solution, the sliding hole cooperates with the telescopic rod 19, so that the support plate 13 can move driven by the second fastening screw 12 and will not rotate together with the second fastening screw 12. The two telescopic rods 19 can also improve the stability of the support plate 13 without affecting the movement of the support plate 13.

[0046] The waste collection mechanism includes an open box 21 fixedly mounted on three support plates 20 , and two drawers 22 are slidably mounted in the open box 21 .

[0047] Through the above technical solution, the open box 21 is combined with two drawers 22, which can not only collect the waste generated after the angle steel is drilled, but also serve as a placement table for the angle steel 23 to be drilled. Since the middle of the drawer 22 is empty, it will not affect the normal drilling of the drill bit, and the two drawers 22 are both fitted with a recess on one side, so that the edges of the two drawers 22 in the open box 21 will not restrict the drilling work of the angle steel 23 to be drilled.

[0048] Insertion holes are formed on the two first tightening screw rods 7 and the two second tightening screw rods 12 , and tightening wrenches 25 are slidably inserted into the corresponding two insertion holes.

[0049] Through the above technical solution, the tightening wrench 25 can increase the torque of the tightening screw, and it is more convenient and labor-saving to rotate the tightening screw through the tightening wrench 25.

[0050] The implementation principle of the angle steel adjustable drilling frame of a power plant boiler frame in the embodiment of the present application is as follows:

[0051] The first step: during actual construction, the angle steel 23 to be drilled is placed above the open box 21 and the drawer 22. After calibrating their positions, the positions of the two fastening clamps 11 are adjusted so that the two fastening clamps 11 are relative to the angle steel 23 to be drilled. Then, the fastening wrench 25 is used to drive any one of the second fastening screw rods 12 to rotate. Under the transmission of the driving rod 16, the driving tube 17, the two first bevel gears 15 and the two second bevel gears 18, the two second fastening screw rods 12 can rotate synchronously. Under the action of the thread, the two second fastening screw rods 12 drive the two abutting plates 13 to tighten the angle steel 23 to be drilled to the long plate 2, thereby achieving the fixing work of the angle steel 23 to be drilled.

[0052] The second step: select the drilling sleeve template 24 according to the specifications of the angle steel and the data of the hole to be drilled, and place it above the drilling jig support, adjust it according to the determined positioning point, and then adjust the position of the two fastening clamps 6 so that the two fastening clamps 6 are opposite to the drilling sleeve template 24, and then use the fastening wrench 25 to rotate the two first fastening screws 7. Under the action of the thread, the two first fastening screws 7 drive the two clamping pads 8 to descend until the two clamping pads 8 contact the top of the drilling sleeve template 24 and position and limit the drilling sleeve template 24.

[0053] The third step: the drilling angle steel 23 can be directly drilled according to the preset holes on the drilling sleeve template 24. In this process, there is no need to spend time measuring and calculating the position of each drill hole. The metal debris generated after the drilling is completed will fall into the two drawers 22.

[0054] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. An adjustable drilled angle steel frame for a boiler frame in a power plant, characterized in that: include: A drilling jig support, wherein three support plates are fixedly mounted on the drilling jig support, and the same waste collection mechanism is mounted on the three support plates, and the angle steel to be drilled is placed on the waste collection mechanism, and a drilling sleeve template is placed on the drilling jig support, and the drilling sleeve template portion extends to the top of the angle steel to be drilled, and two fastening clamps are slidably mounted on the drilling jig support and below the waste collection mechanism, and both fastening clamps are threadedly mounted with a first fastening screw for pressing the drilling sleeve template and the angle steel to be drilled, and two fastening clamp blocks are slidably mounted on the drilling jig support, and a second fastening screw for pressing the lower half of the angle steel to be drilled is threadedly mounted on the two fastening clamp blocks, and one end of the two second fastening screws is rotatably mounted with a butt plate; A sealing box is rotatably sleeved on each of the two second fastening screw rods, and a first bevel gear is fixedly sleeved on each of the two second fastening screw rods. A driving rod is rotatably mounted on one of the sealing boxes, and a driving tube is slidably sleeved on the driving rod. One end of the driving tube extends into the other sealing box and is rotatably connected thereto. A second bevel gear is fixedly mounted on one end of the driving rod and the driving tube that is away from each other, and the two first bevel gears are respectively engaged with the two second bevel gears; A wire groove is formed on one side of the driving rod, and a limiting block is fixedly mounted on the inner wall of the driving tube. One side of the limiting block extends into the wire groove and is slidably connected to the wire groove.

2. The angle steel adjustable drilling bracket for the power plant boiler frame according to claim 1, characterized in that: The drilling cradle support includes a base, a long plate and three vertical plates are welded to the top of the base, one side of the three vertical plates are welded to the long plate, the long plate and the top of the three vertical plates are welded to the same top plate, and the bottom of the drilling sleeve template is in contact with the bottom of the top plate.

3. The angle steel adjustable drilling bracket for the power plant boiler frame according to claim 2, characterized in that: Two long strips are fixedly installed on the three vertical plates. The two long strips both pass through the two fastening clamps and are slidably connected with the two fastening clamps.

4. The angle steel adjustable drilling bracket for the power plant boiler frame according to claim 1, characterized in that: The bottom ends of the two first tightening screw rods are both rotatably mounted with a pressing pad.

5. The angle steel adjustable drilling bracket for the power plant boiler frame according to claim 2, characterized in that: A slot frame is fixedly installed on the base, and two sliding rods are fixedly installed in the slot frame. The bottoms of the two fastening clamp blocks extend into the slot frame and are slidably connected to the slot frame. The two sliding rods pass through the two fastening clamp blocks and are slidably connected to the two fastening clamp blocks.

6. The angle steel adjustable drilling bracket for the power plant boiler frame according to claim 1, characterized in that: The fastening clamp block is provided with two sliding holes, in which telescopic rods are slidably installed, and one end of the two telescopic rods extends out of the sliding holes and is fixedly connected to the abutment plate.

7. The angle steel adjustable drilling bracket for the power plant boiler frame according to claim 1, characterized in that: The waste collection mechanism comprises an open box fixedly mounted on three support plates, and two drawers are slidably mounted in the open box.

8. The angle steel adjustable drilling bracket for the power plant boiler frame according to claim 1, characterized in that: Insertion holes are provided on the two first tightening screw rods and the two second tightening screw rods, and tightening wrenches are slidably inserted into the corresponding two insertion holes.

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