Chain conveyor for steel pipes

Abstract

The utility model discloses a chain conveying device for steel pipe, including base and two groups of sprocket, two groups of sprocket are connected through chain, be equipped with motor on the base, and the output shaft of motor is connected with sprocket, be equipped with extension plate on chain plate, and the movable plate is slidably equipped with on extension plate, be equipped with internal thread on extension plate, and extension plate is screwed with locating bolt, be equipped with movable slot on movable plate, be equipped with support on base, be equipped with guide block on support, and guide block is located chain directly below, and the through channel is opened in guide block, and the guide groove that is communicated with through channel is opened to one side of guide block, and the rack is equipped with on the inner wall both sides of through channel, and two groups of racks are located respectively in the inside through channel two ends, and the top of locating bolt passes through movable slot, and is equipped with gear with rack meshing drive, and the guide plate is rotatably equipped with through swivel rod on the lower end of guide block, and the guide plate is located between two groups of racks, and the personnel one -by -one adjustment is needed in tradition, and the utility model discloses can not need personnel manual one -by -one adjustment.

Description

Technical Field

[0001] This utility model relates to the field of chain conveyor equipment technology, and in particular to a chain conveyor device for steel pipes. Background Technology

[0002] Steel pipes are steel materials with hollow cross-sections, whose length is much greater than their diameter or circumference. They are classified by cross-sectional shape into round, square, rectangular, and irregularly shaped steel pipes; by material into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes, and composite steel pipes; by application into pipes for transportation, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, and high-pressure equipment; and by manufacturing process into seamless steel pipes and welded steel pipes. Seamless steel pipes are further divided into hot-rolled and cold-rolled types, while welded steel pipes are divided into straight-seam welded steel pipes and spiral-seam welded steel pipes.

[0003] Traditionally, during the manufacturing process of steel pipes, the pipes need to be transported to different processing stages. Chain conveyors are typically used to move the pipes, reducing manual handling. A chain conveyor consists of two sets of opposing sprockets and a chain mounted on and driven by them. A motor can be connected to one or both sets of sprockets, driving the chain. Each set of chain plates has a support plate for supporting the steel pipe. Through holes are formed on the support plates, and through holes are formed on the chain plates. Bolts are passed through the through holes and through holes, and nuts are screwed in to fix the position of the support plates. Using support plates on the chain plates makes it more suitable for conveying steel pipes.

[0004] However, when transporting steel pipes of other sizes, the position of the support plate on the chain plate needs to be adjusted, which is very troublesome and inconvenient for personnel to manually adjust one by one. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a chain conveying device for steel pipes.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A chain conveying device for steel pipes includes a base and sprockets at opposite ends above it. The two sets of sprockets are connected by a chain. A motor is mounted on the base, and the output shaft of the motor is connected to the sprockets. Several sets of chain plates are mounted on the chain. Each set of chain plates is provided with an extension plate. A movable plate is slidably mounted on the extension plate. An internal thread is formed on the extension plate, and a positioning bolt is screwed onto the extension plate through the internal thread. A movable groove is formed on the movable plate along the width direction of the chain. A bracket is provided on the base, and a guide block is provided on the bracket along the length of the chain, with the guide block located directly below the chain. A through channel is opened inside the guide block, and a guide groove communicating with the through channel is opened on the side of the guide block facing the chain. Racks are provided on both sides of the inner wall of the through channel, with two sets of racks located at the front and rear ends of the through channel, respectively. The top of the positioning bolt passes through the movable groove, and a gear that meshes with the rack is provided at one end of the movable groove. A guide plate is rotatably provided at the lower end of the guide block through a rotating rod, and the guide plate is located between the two sets of racks.

[0007] Preferably, a limiting plate is provided on the top of the positioning bolt, the gear is connected to the positioning bolt through the limiting plate, and a washer is sleeved on the outside of the top of the positioning bolt. The width of the movable groove is greater than the outer diameter of the positioning bolt, and the outer diameter of the washer is greater than the width of the movable groove.

[0008] Preferably, the lower side of the guide block is provided with an arc-shaped groove, the arc-shaped groove is concentric with the rotating rod, and a sliding rod is provided on the side wall of the guide plate and is slidably connected to the arc-shaped groove, and a fixing bolt is screwed onto the sliding rod.

[0009] Preferably, a baffle is provided at the bottom end of the positioning bolt, and the outer diameter of the baffle is larger than the inner diameter of the internal thread on the extension plate.

[0010] Preferably, the guide plate is provided with a flexible pad.

[0011] Preferably, the extension plate is provided with a slide bar, and the movable plate is provided with a sliding groove that is slidably connected to the slide bar.

[0012] The beneficial effects of this utility model are as follows: An extension plate is provided on the chain plate, and a movable plate is slidably mounted on the extension plate. The movable plate supports the steel pipe. An internal thread is formed on the extension plate, and a movable groove is formed on the movable plate. A positioning bolt is screwed into the internal thread of the extension plate, with the top of the positioning bolt passing through the movable groove, thereby achieving a fixed connection between the extension plate and the movable plate. A bracket is provided directly below the chain, and a guide block with a through-channel is provided on the bracket. A guide groove communicating with the through-channel is formed on the guide block, and racks are provided on both sides inside the through-channel. Two sets of racks are located at the front and rear ends of the through-channel, respectively. The top of the positioning bolt is provided with a mechanism that meshes with the racks for transmission. The gear, along with the guide plate, is rotatably connected to the guide block via a rotating rod at the lower end of the guide block. Compared with the prior art, this utility model can move the extension plate over the guide block when the chain moves, allowing the positioning bolt to enter the through channel through the guide groove. This enables the gear at the top of the positioning bolt to mesh with the rack in the through channel, thus replacing manual loosening or tightening of the positioning bolt. The guide plate can also move a certain distance on the extension plate as the moving plate passes by, replacing manual adjustment. It eliminates the need for manual adjustment of the position of each set of moving plates on the extension plate, reducing manual labor and improving adjustment efficiency. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a portion of the mechanism on the base, as shown in one embodiment of the present invention.

[0014] Figure 2 This is a cross-sectional view showing the inner and outer parts of the base mechanism in one embodiment of the present invention;

[0015] Figure 3 for Figure 2 Enlarged view of section A;

[0016] Figure 4 This is an exploded view of a portion of the mechanism on the base, according to one embodiment of the present invention.

[0017] Figure 5 for Figure 4 Enlarged view of section B;

[0018] Figure 6 for Figure 4 Enlarged view of section C;

[0019] Figure 7 This is a structural schematic diagram of a portion of the mechanism on the display stand, as described in one embodiment of the present invention.

[0020] Figure 8 for Figure 7 Enlarged view of section D.

[0021] Reference numerals: 1. Base; 2. Sprocket; 3. Chain; 4. Motor; 5. Extension plate; 6. Movable plate; 7. Internal thread; 8. Positioning bolt; 9. Movable groove; 10. Gear; 11. Bracket; 12. Guide block; 13. Through channel; 14. Guide groove; 15. Rack; 16. Rotating rod; 17. Guide plate; 18. Limiting plate; 19. Washer; 20. Arc groove; 21. Sliding rod; 22. Top fixing bolt; 23. Baffle; 24. Flexible pad; 25. Sliding bar; 26. Sliding groove. Detailed Implementation

[0022] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0023] It should be noted that in this document, relational terms such as first and second, or "connecting plate one, connecting plate two," are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0024] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0025] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1 to 8As shown, a chain conveyor device for steel pipes includes a base 1 and two sets of sprockets 2 arranged opposite each other on the base 1. The two sets of sprockets 2 are connected by a chain 3. A motor 4 is installed on the upper side of the base 1, and the sprockets 2 are sleeved on the output shaft of the motor 4. It should be noted that in this embodiment, vertical plates (not shown in the figure) are arranged parallel to each other on the left and right sides of the chain 3 above the base 1. One set of motors 4 is provided, and one set of sprockets 2 is sleeved on the output shaft of this motor 4. The other set of sprockets 2 is rotatably connected to the vertical plate at the upper end of the base 1 through a rotating rod (not shown in the figure). Each set of chain plates of the chain 3 is provided with an L-shaped extension plate 5. An L-shaped movable plate 6 slides horizontally on the extension plate 5. The extension plate 5 is provided with an internal thread 7, and a positioning bolt 8 is screwed to it through the internal thread 7. A movable groove 9 is provided on the movable plate 6 along the width direction of the chain 3. The top of the positioning bolt 8 passes through the movable groove 9 and passes through the movable plate 6. A gear 10 is provided at one end of the moving groove 9. A bracket 11 is slidably provided inside the base 1 directly below the chain 3. Specifically, a sliding bar (not shown in the attached figure) is provided on the base 1 along its length. A sliding groove (not shown in the attached figure) is provided on the lower side of the bracket 11 and is slidably connected to the sliding bar. A positioning hole (not shown in the attached figure) is opened on the bottom side inside the base 1. A connecting bolt (not shown in the attached figure) is provided at the lower end of the bracket 11 and is screwed to the positioning hole to fix the position of the bracket 11. The purpose is to be able to move the position of the bracket 11 on the base 1 and align it directly below the chain 3. A guide block 12 is installed on the bracket 11 along the length of the chain 3. In this embodiment, extension plates 5 are provided opposite to each other on the left and right ends of the chain plate. Each set of extension plates 5 is provided with an internal thread 7 and a movable plate 6 is slidably provided. Two sets of guide blocks 12 are provided opposite to each other and are located directly below the extension plates 5.

[0027] A through channel 13 is provided inside the guide block 12. A guide groove 14 communicating with the through channel 13 is provided on the side of the guide block 12 facing the chain 3. Racks 15 are provided on both sides of the inner wall of the through channel 13. In this embodiment, two sets of racks 15 are located at the front and rear ends of the through channel 13, respectively, and both sets of racks 15 can mesh with the gear 10 for transmission. A guide plate 17 is rotatably provided at the lower end of the two sets of guide blocks 12 on the side away from each other via a rotating rod 16. The guide plate 17 is provided on... Between the two sets of racks 15 arranged at the front and rear, an arc-shaped groove 20 is provided on the lower side of the guide block 12. The arc-shaped groove 20 is concentrically arranged with the rotating rod 16, and a sliding rod is provided on the side of the guide plate 17 facing the guide block 12, which is slidably connected to the arc-shaped groove 20. A top fixing bolt 22 is screwed on the sliding rod. The purpose is to facilitate the personnel to limit the position of the guide plate 17 by sliding the rod. A flexible pad 24 is provided on the outer wall of the guide plate 17 away from the guide block 12 to prevent the outer wall of the guide block 12 from being directly hit.

[0028] A circular limiting plate 18 is provided on the top of the positioning bolt 8. The gear 10 is connected to the positioning bolt 8 through the limiting plate 18. A washer 19 is sleeved on the outside of the top of the positioning bolt 8. The width of the movable groove 9 is larger than the outer diameter of the positioning bolt 8. The outer diameter of the washer 19 is larger than the width of the movable groove 9. The purpose is to limit the top of the positioning bolt 8 at the movable plate 6 to prevent it from passing through the movable groove 9. A circular baffle 23 is provided on the bottom of the positioning bolt 8. The outer diameter of the baffle 23 is larger than the inner diameter of the internal thread 7 on the extension plate 5. A slide bar 25 is horizontally provided on the end of the extension plate 5 away from the chain plate. A sliding groove 26 is provided on the movable plate 6 and is slidably connected to the slide bar 25.

[0029] When the steel pipe is moving normally as output by chain 3, the support 11 is not placed below chain 3. When it is necessary to transport a larger steel pipe, first stop the conveying of chain 3, then adjust the rotating guide plate 17 at a certain angle, tighten the top bolt 22 to fix the position of the guide plate 17, and then place the support 11 on the base 1 so that the support 11 is directly below chain 3. Tighten the connecting bolt to fix the position of the support 11. Chain 3 continues to work. When the chain plate of chain 3 moves downward, it will drive the extension plate 5 through the guide groove 14 into the through channel 13, and the gear 10 at the top of the positioning bolt 8 will begin to mesh with the rack 15 at the inlet end of the through channel 13 in a forward rotation, driving the positioning bolt 8 into the through channel 13. Bolt 8 loosens the movable plate 6, and then moves past the rack 15 at the inlet end of the through channel 13. The gear 10 no longer rotates forward. The end of the movable plate 6 away from the extension plate 5 is driven by the guide plate 17 to move horizontally a certain distance away from the guide block 12. After moving past the guide plate 17, the gear 10 on the positioning bolt 8 begins to mesh with the rack 15 at the outlet end of the through channel 13 in reverse, thereby driving the positioning bolt 8 to reconnect with the internal thread 7 on the extension plate 5. The position of the movable plate 6 on the extension plate 5 is fixed by the washer 19. At this time, the movable plate 6 has moved to the appropriate position on the extension plate 5 and is fixed by the positioning bolt 8. Larger steel pipes can be easily placed on the movable plate 6.

[0030] Once the positions of the movable plates 6 on each set of chain plates of chain 3 are adjusted, the personnel can pause the transport of chain 3 and remove the bracket 11 again. It should be noted that during the placement and removal of the bracket 11, the guide block 12 will contact the positioning bolts 8 on the upper part of chain 3, causing their state to change. The personnel can manually adjust the state of these positioning bolts 8. At the same time, the personnel can connect each set of racks 15 by driving the bolts (not shown in the attached diagram), and drive the bolts to be screwed to the side wall of the guide block 12. A certain width is reserved in the through channel 13, so that the two sets of racks 15 can be moved away from each other by rotating the bolts. When the positioning bolts 8 enter the through channel 13, the gear 10 does not contact the rack 15, so it is not necessary to remove the bracket 11 on the base 1 after adjusting the position of the movable plate 6.

[0031] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A chain conveying device for steel pipes, comprising a base (1) and sprockets (2) disposed at opposite ends above the base (1), the two sets of sprockets (2) being connected by a chain (3), a motor (4) being disposed on the base (1), the output shaft of the motor (4) being connected to the sprockets (2), and a plurality of chain plates being disposed on the chain (3). Its features are, Each set of chain plates on the chain (3) is provided with an extension plate (5), and a movable plate (6) is slidably provided on the extension plate (5); The extension plate (5) is provided with an internal thread (7), and the extension plate (5) is screwed with a positioning bolt (8) through the internal thread (7). The movable plate (6) is provided with a movable groove (9) along the width direction of the chain (3). A bracket (11) is provided on the base (1), and a guide block (12) is provided on the bracket (11) along the length direction of the chain (3). The guide block (12) is located directly below the chain (3). A through channel (13) is provided inside the guide block (12), and a guide groove (14) communicating with the through channel (13) is provided on the side of the guide block (12) facing the chain (3). The inner wall of the through channel (13) is provided with racks (15) on both sides. The two sets of racks (15) are located at the front and rear ends of the through channel (13) respectively. The top of the positioning bolt (8) passes through the movable groove (9), and a gear (10) that meshes with the rack (15) is provided at one end of the movable groove (9). The guide block (12) has a guide plate (17) rotatably mounted on its lower end via a rotating rod (16), and the guide plate (17) is located between two sets of racks (15).

2. The chain conveyor device for steel pipes according to claim 1, characterized in that, A limiting plate (18) is provided on the top of the positioning bolt (8), the gear (10) is connected to the positioning bolt (8) through the limiting plate (18), and a washer (19) is sleeved on the outside of the top of the positioning bolt (8). The width of the movable groove (9) is greater than the outer diameter of the positioning bolt (8), and the outer diameter of the washer (19) is greater than the width of the movable groove (9).

3. A chain conveyor device for steel pipes according to claim 1, characterized in that, The guide block (12) has an arc-shaped groove (20) on its lower side. The arc-shaped groove (20) is concentrically arranged with the rotating rod (16). A sliding rod (21) is provided on the side wall of the guide plate (17) and is slidably connected to the arc-shaped groove (20). A top fixing bolt (22) is screwed onto the sliding rod (21).

4. A chain conveyor device for steel pipes according to claim 1, characterized in that, A baffle (23) is provided on the bottom end of the positioning bolt (8), and the outer diameter of the baffle (23) is larger than the inner diameter of the internal thread (7) on the extension plate (5).

5. A chain conveyor device for steel pipes according to claim 1, characterized in that, A flexible pad (24) is provided on the guide plate (17).

6. A chain conveyor device for steel pipes according to claim 1, characterized in that, The extension plate (5) is provided with a slide bar (25), and the movable plate (6) is provided with a sliding groove (26) which is slidably connected to the slide bar (25).

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