Supporting U-shaped steel shed bending device

Abstract

The utility model discloses a supporting U-shaped steel shed bending device, which belongs to the technical field of supporting steel shed forming and comprises an operation table and two guide wheels, and a telescopic cylinder and two guide wheel mounting frames are mounted on the operation table. The telescopic cylinder is connected with a press-fitting head, and a pressing groove is formed in the press-fitting head and is in an arc shape. During use, raw material straight steel of the U-shaped steel shed is placed on the operation table, and the V-shaped opening faces backwards and is embedded with the two guide wheels; the telescopic cylinder extends out to drive the press-fitting head to move, so that the pressing groove is clamped with the non-opening side of the raw material straight steel of the U-shaped steel shed, and the bending forming of the U-shaped steel shed is realized; the guide wheel is embedded with the V-shaped opening for guiding, and the pressing groove is clamped with the non-opening side of the U-shaped steel shed raw material straight steel, so that the reliability of press fitting and bending is ensured, the phenomena of opening and tearing caused by bending of the U-shaped steel shed raw material straight steel are effectively avoided, the structure is simple, the manufacturing cost is low, the operation is convenient and fast, and the operation is efficient.

Description

Technical Field

[0001] This utility model belongs to the field of steel shed forming technology, specifically a bending device for supporting U-shaped steel sheds. Background Technology

[0002] Steel support canopies are a common support method in coal mine roadways, mainly used to provide temporary or permanent roadway support. The form and materials of the steel support canopies may vary depending on different geological conditions and operational requirements.

[0003] Steel support sheds can be divided into the following types:

[0004] I-beam support structures: I-beam support structures are one of the commonly used support methods in coal mines. Their construction process includes selecting appropriate I-beam specifications, determining the number and location of fixing points, and using anti-slip hooks to ensure safety. In some cases, such as after the construction of an artificial false roof, dense I-beam support structures are erected in the false roof area to prevent roof subsidence due to plastic deformation of the surrounding rock. However, I-beam support structures have some disadvantages, such as complex construction, high labor intensity for workers, high support costs, and the need for frequent replacement during later mining operations.

[0005] U-shaped steel sheds: U-shaped steel sheds are also a commonly used form of support, especially when high strength and stability are required. The construction process of U-shaped steel sheds includes steps such as digging leg recesses, installing the shed beams and reinforcing the back plate, fixing the shed legs, and erecting the top beam. U-shaped steel sheds are commonly used for secondary support in mines, possessing high compressive strength and stability.

[0006] Double-beam steel canopy: The double-beam steel canopy is an optimized support method, particularly suitable for stress concentration zones in fully mechanized mining faces. This support method provides more effective support through a combination of canopy leg bases, canopy legs, and crossbeams. The double-beam steel canopy can reduce support costs, decrease labor intensity, and improve roof stability.

[0007] In the manufacturing and forming of U-shaped steel sheds, straight steel with a V-shaped cross-section is generally bent into a U-shape, with the V-shaped opening facing outwards, such as... Figure 6-7 As shown. Traditional U-shaped steel shed bending equipment is generally large in size and expensive. Moreover, for bending different models of U-shaped steel sheds, it is necessary to replace the entire pressing parts, which is cumbersome to operate and has low work efficiency. Utility Model Content

[0008] To address the problems of traditional U-shaped steel shed bending equipment being generally large in size, expensive, and cumbersome to operate, this utility model provides a support device for bending U-shaped steel sheds.

[0009] This utility model is achieved through the following technical solution:

[0010] A device for supporting the bending of a U-shaped steel canopy includes an operating platform and two guide wheels that fit into the groove of the U-shaped steel canopy. A telescopic cylinder and two guide wheel mounting brackets are positioned on the operating platform, and the guide wheels are rotatably mounted on the guide wheel mounting brackets. A pressing head is connected to the telescopic end of the telescopic cylinder. A pressing groove is opened on the side of the pressing head away from the telescopic cylinder. The pressing groove is an arc shape that protrudes away from the telescopic cylinder, and its cross-section is adapted to the U-shaped steel canopy. The two guide wheels are symmetrically arranged on both sides of the extension direction of the pressing head.

[0011] A further improvement of this utility model is that a connecting sleeve is welded to the press head and slides with the telescopic end of the telescopic cylinder, and a first positioning pin is inserted through the connecting sleeve and positioned with the telescopic end of the telescopic cylinder; a first pull ring is connected to the first positioning pin.

[0012] A further improvement of this utility model is that two second rollers and two first rollers are symmetrically and rotatably installed on the left and right sides of the operating table; the second rollers are in the same direction as the telescopic cylinder, and the first rollers are inclined outward along the extension direction of the telescopic cylinder.

[0013] A further improvement of this utility model is that the pressing head is made of several vertical steel plates welded together.

[0014] A further improvement of this utility model is that the pressing head is made of several transverse steel plates welded together.

[0015] A further improvement of this utility model is that the guide wheel mounting bracket has a U-shaped bent plate structure, on which a third positioning pin is inserted for rotation with the guide wheel, and a third pull ring is connected to the third positioning pin.

[0016] A further improvement of this utility model is that a base plate that can fit against the operating table is connected and installed on the side of the guide wheel mounting bracket away from the guide wheel, and mounting bolts that can be screwed onto the base plate for installation with the operating table are provided.

[0017] Further improvements to this utility model include: the operating table is provided with several positioning grooves and several sets of mounting holes that cooperate with mounting bolts; a second positioning pin is provided on the base plate that can be inserted into the positioning groove, and a second pull ring is connected to the second positioning pin.

[0018] A further improvement of this utility model is that several vertical stiffening plates are installed between the base plate and the web plate of the guide wheel mounting frame.

[0019] A further improvement of this utility model is that a support pad is provided between the lower side wing plate of the guide wheel mounting bracket and the guide wheel.

[0020] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0021] In use, place the raw straight steel of the U-shaped steel shed on the operating table with its V-shaped opening facing backward and engaged with the two guide wheels. Adjust the left and right position of the raw straight steel so that the middle of the bend aligns with the pressing head. Control the extension of the telescopic cylinder to move the pressing head forward, so that the pressing groove engages with the non-open side of the raw straight steel of the U-shaped steel shed. Continue to move the pressing head forward to perform the pressing and bending operation on the raw straight steel, thereby realizing the bending and forming of the U-shaped steel shed. The guide wheels and the engagement of the V-shaped opening guide the bending, and the engagement of the pressing groove with the non-open side of the raw straight steel of the U-shaped steel shed ensures the reliability of the pressing and bending, effectively avoiding the "opening" and "tearing" phenomena caused by bending the raw straight steel of the U-shaped steel shed. The overall structure is simple, the cost is low, the footprint is small, the operation is convenient, the work is efficient, and the practicality is high. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a top view of a specific embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the press-fitting head assembly according to a specific embodiment of the present utility model.

[0025] Figure 3 This is a schematic diagram of the guide wheel assembly in a specific embodiment of the present utility model.

[0026] Figure 4 for Figure 3 A side view diagram.

[0027] Figure 5 This is a schematic diagram of the operating table structure according to a specific embodiment of the present invention.

[0028] Figure 6 This is a schematic diagram of a U-shaped steel canopy structure.

[0029] Figure 7 This is a schematic diagram of the cross-section of a U-shaped steel canopy.

[0030] In the attached diagram: 1. U-shaped steel canopy; 2. Operating platform; 21. First roller; 22. Second roller; 23. Mounting hole; 24. Adjustment groove; 25. Positioning groove; 3. Telescopic cylinder; 4. Press head; 41. Pressing groove; 5. Connecting sleeve; 6. First positioning pin; 61. First pull ring; 7. Guide wheel mounting bracket; 71. Base plate; 72. Rib plate; 8. Guide wheel; 81. Third positioning pin; 82. Third pull ring; 83. Support pad; 9. Second positioning pin; 91. Second pull ring; 10. Mounting bolt. Detailed Implementation

[0031] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0032] like Figure 1-5 As shown, this utility model discloses a support device for bending a U-shaped steel shed, including a horizontal operating platform 2 and two guide wheels 8 that can fit into the groove of the U-shaped steel shed 1. A telescopic cylinder 3 and two guide wheel mounting frames 7 are positioned and installed on the rear of the operating platform 2. The guide wheels 8 are rotatably mounted on the guide wheel mounting frames 7. A pressing head 4 is connected and installed at the telescopic end (front end) of the telescopic cylinder 3. A pressing groove 41 is opened on the side (front side) of the pressing head 4 away from the telescopic cylinder 3. The pressing groove 41 is an arc shape that protrudes away from the telescopic cylinder 3 (front side), and its cross section is adapted to the non-open side of the U-shaped steel shed 1. The two guide wheels 8 are symmetrically arranged on the left and right sides of the extension direction of the pressing head 4.

[0033] In use, the raw straight steel of the U-shaped steel shed 1 is placed on the operating table 2 with its V-shaped opening facing backward and engaged with the two guide wheels 8. The left and right positions of the raw straight steel are adjusted so that the middle of the bend corresponds to the pressing head 4. The telescopic cylinder 3 is extended to drive the pressing head 4 forward, so that the pressing groove 41 engages with the non-open side of the raw straight steel of the U-shaped steel shed 1. The pressing head 4 continues to move forward to perform the pressing and bending operation on the raw straight steel, thereby realizing the bending and forming of the U-shaped steel shed 1. The guide wheels 8 are engaged with the V-shaped opening for guidance, and the pressing groove 41 engages with the non-open side of the raw straight steel of the U-shaped steel shed 1 to ensure the reliability of the pressing and bending, effectively avoiding the "opening" and "tearing" phenomena caused by bending the raw straight steel of the U-shaped steel shed 1. The overall structure is simple, the cost is low, the footprint is small, the operation is convenient, the work is efficient, and the practicality is high.

[0034] The pressing head 4 is constructed by welding several steel plates. In one embodiment, the pressing head 4 is constructed by welding several vertically oriented steel plates, resulting in high structural strength and resistance to deformation. In another embodiment, the pressing head 4 is constructed by welding several horizontally oriented steel plates, leading to efficient welding operations and good horizontal load-bearing capacity.

[0035] The pressing head 4 is welded with a connecting sleeve 5 that slides onto the telescopic end (front end) of the telescopic cylinder 3. A first positioning pin 6 is inserted through the connecting sleeve 5 and positioned to be positioned at the telescopic end of the telescopic cylinder 3. A first pull ring 61 is connected to the first positioning pin 6. The first positioning pin 6 can be easily disassembled and assembled through the first pull ring 61, thereby enabling easy replacement of the pressing head 4. This allows for pressing and bending of U-shaped steel canopies 1 of different sizes, making the operation convenient and applicable to a wide range of situations.

[0036] The control panel 2 has two second rollers 22 and two first rollers 21 symmetrically mounted on its left and right sides. The second rollers 22 are aligned with the telescopic cylinder 3 in the same direction of extension and retraction, while the first rollers 21 are inclined outwards along the extension direction of the telescopic cylinder 3. The first rollers 21 and the second rollers 22 provide good rolling support for the U-shaped steel canopy 1, making it more convenient and labor-saving to move and adjust the U-shaped steel canopy 1 left and right.

[0037] The guide wheel mounting bracket 7 has a U-shaped bent plate structure. A third positioning pin 81, which is rotatably inserted into the guide wheel 8, is mounted on both of its wing plates. A third pull ring 82 is connected to the third positioning pin 81. The third pull ring 82 allows for easy installation and removal of the third positioning pin 81, thus facilitating the replacement of the guide wheel 8 and enabling guidance for different U-shaped steel canopies 1. This design is convenient to operate and has a wide range of applications.

[0038] Furthermore, a base plate 71 (on the same plane as the bottom wing plate of the guide wheel mounting bracket 7) that can fit against the operating table 2 is connected and installed on the side of the guide wheel mounting bracket 7 away from the guide wheel 8. A set of mounting bolts 10 are threaded through the base plate 71 and screwed onto the operating table 2. The mounting bolts 10 achieve a reliable connection and installation between the guide wheel mounting bracket 7 and the operating table 2.

[0039] Furthermore, the operating platform 2 is provided with several positioning slots 25 and several sets of mounting holes 23 that mate with the mounting bolts 10; a second positioning pin 9 is provided on the base plate 71 to be inserted into the positioning slots 25 for positioning, and a second pull ring 91 is connected to the second positioning pin 9. By screwing the sets of mounting bolts 10 into different mounting holes 23 and by inserting the second positioning pin 9 into different positioning slots 25 for positioning, the reliability of the connection and installation between the guide wheel mounting frame 7 and the operating platform 2 is achieved, and the position of the guide wheel mounting frame 7 (guide wheel 8) can be easily adjusted, so as to adapt to U-shaped steel canopies 1 of different sizes. It has a wide range of applications and is easy to operate.

[0040] The control panel 2 has an adjustment groove 24 that communicates with several positioning grooves 25. This facilitates the switching of the second positioning pin 9 between different positioning grooves 25 and improves the ease of operation.

[0041] Several vertical stiffening plates 72 are installed between the base plate 71 and the web of the guide wheel mounting frame 7, effectively improving the structural strength of the guide wheel mounting frame 7.

[0042] A support pad 83 is provided between the lower wing plate of the guide wheel mounting bracket 7 and the guide wheel 8, and the support pad 83 is fitted onto the third positioning pin 81. The support pad 83 supports and lifts the guide wheel 8, so that the guide wheel 8 matches the opening height of the U-shaped steel canopy 1; and the height of the guide wheel 8 can be adjusted by replacing the support pad 83 with one of different thicknesses, making it widely applicable and easy to operate.

[0043] This U-shaped steel canopy bending device works by placing the raw straight steel of the U-shaped steel canopy 1 on the operating table 2 with its V-shaped opening facing backward and engaging with the two guide wheels 8. The left and right positions of the raw straight steel are adjusted so that the middle of the bend aligns with the pressing head 4. The telescopic cylinder 3 is extended, driving the pressing head 4 forward so that the pressing groove 41 engages with the non-opening side of the raw straight steel of the U-shaped steel canopy 1. The pressing head 4 continues to move forward to bend the raw straight steel, thereby achieving the bending and forming of the U-shaped steel canopy 1. The guide wheels 8 engage with the V-shaped opening, and the pressing groove 41 engages with the non-opening side of the raw straight steel of the U-shaped steel canopy 1, ensuring the reliability of the pressing and bending. This effectively avoids the "opening" and "tearing" phenomena caused by bending the raw straight steel of the U-shaped steel canopy 1. The overall structure is simple, the cost is low, the footprint is small, the operation is convenient, the work is efficient, and the practicality is high.

[0044] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0045] The terms "upper," "lower," "outer," "inner," etc., used in the specification, claims, and accompanying drawings of this utility model, are used to distinguish relative positional relationships and are not necessarily qualitative. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for supporting a U-shaped steel canopy bending mechanism, characterized in that, It includes an operating table (2) and two guide wheels (8) that fit into the slots of the U-shaped steel shed (1). The operating table (2) is equipped with a telescopic cylinder (3) and two guide wheel mounting brackets (7). The guide wheels (8) are rotatably mounted on the guide wheel mounting brackets (7). The telescopic cylinder (3) is connected to a pressing head (4). The pressing head (4) has a pressing groove (41) on the side away from the telescopic cylinder (3). The pressing groove (41) is an arc shape that protrudes away from the telescopic cylinder (3), and its cross section is adapted to the U-shaped steel shed (1). The two guide wheels (8) are symmetrically arranged on both sides of the extension direction of the pressing head (4).

2. The U-shaped steel canopy bending device according to claim 1, characterized in that, The press head (4) is welded with a connecting sleeve (5) that slides with the telescopic end of the telescopic cylinder (3). A first positioning pin (6) is inserted through the connecting sleeve (5) and positioned with the telescopic end of the telescopic cylinder (3). A first pull ring (61) is connected to the first positioning pin (6).

3. The U-shaped steel canopy bending device according to claim 2, characterized in that, The operating table (2) is symmetrically rotated on both sides with two second rollers (22) and two first rollers (21); the second rollers (22) are in the same direction as the telescopic cylinder (3) and the first rollers (21) are inclined outward along the extension direction of the telescopic cylinder (3).

4. The U-shaped steel canopy bending device according to claim 1, characterized in that, The press head (4) is made of several vertical steel plates welded together.

5. The U-shaped steel canopy bending device according to claim 1, characterized in that, The press head (4) is made of several transverse steel plates welded together.

6. The U-shaped steel canopy bending device according to claim 1, characterized in that, The guide wheel mounting bracket (7) has a U-shaped bent plate structure, and a third positioning pin (81) is inserted through it and rotates with the guide wheel (8). A third pull ring (82) is connected to the third positioning pin (81).

7. The U-shaped steel canopy bending device according to claim 6, characterized in that, The guide wheel mounting bracket (7) is connected to a base plate (71) that can fit against the operating table (2) on the side away from the guide wheel (8). The base plate (71) is provided with mounting bolts (10) that are screwed onto the operating table (2).

8. The U-shaped steel canopy bending device according to claim 7, characterized in that, The operating table (2) is provided with several positioning grooves (25) and several sets of mounting holes (23) that cooperate with the mounting bolts (10); the base plate (71) is provided with a second positioning pin (9) that can be inserted into the positioning groove (25), and a second pull ring (91) is connected to the second positioning pin (9).

9. The U-shaped steel canopy bending device according to claim 7, characterized in that, Several vertical stiffeners (72) are installed between the base plate (71) and the web of the guide wheel mounting bracket (7).

10. The U-shaped steel canopy bending device according to claim 6, characterized in that, A support pad (83) is provided between the lower wing plate of the guide wheel mounting bracket (7) and the guide wheel (8).

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