A telescopic chain conveyor mechanism

Abstract

This utility model discloses a telescopic chain conveyor mechanism, relating to the field of telescopic chain conveyor technology. It includes a chain machine body with a main frame connected inside. One end of the main frame is connected to a drive motor via a motor mount bolt, and a drive sprocket is connected to the output shaft of the drive motor. This utility model uses a drive cylinder to drive a sliding frame to move back and forth along a guide rail, achieving stepless adjustment of the conveying length. When extending, the piston rod pushes the sliding frame forward; when shortening, the piston rod pulls the sliding frame backward. Unlike traditional fixed-length conveyors, it eliminates the need to purchase multiple pieces of equipment of different specifications or use multiple conveyor lines, effectively reducing equipment procurement costs and floor space. Simultaneously, when the sliding frame moves, the conveyor chain synchronously extends and retracts through a telescopic closed loop formed by the chain bidirectional steering head, chain slide rail, and chain rolling shaft, adapting to conveying needs from a fixed position to multiple workstations at different distances.

Description

Technical Field

[0001] This utility model relates to the field of telescopic chain conveying technology, specifically a telescopic chain conveying mechanism. Background Technology

[0002] Chain conveyors are common devices that use chains to pull a platform or directly install attachments on the chain to transport materials, and are widely used in various automated production lines. However, traditional chain conveyors have a fixed frame length, which limits their conveying distance. In practical applications, it is often necessary to transport workpieces from a fixed position to multiple workstations at different distances, or to flexibly adjust the equipment length according to available space. Current practices typically involve purchasing conveyors of different lengths or using multi-segment conveyor lines, which are costly, require a large footprint, have complex systems, and are prone to failure at connection points.

[0003] To address these issues, we designed a telescopic chain conveyor mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a telescopic chain conveying mechanism to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a telescopic chain conveying mechanism, including a chain machine body, a main frame connected inside the chain machine body, a drive motor connected to one end of the main frame by a motor seat bolt, a drive sprocket connected to the output shaft of the drive motor, and a tension sprocket connected to the other end of the main frame. A conveying chain is wound around the drive sprocket and the tension sprocket. A telescopic component is set at the end of the chain machine body, including a sliding frame, a sliding base, a guide rail, and a drive cylinder. Welded plates are welded to both sides of the upper surface of the sliding base, and the guide rail is fixedly connected to the welded plates by bolts. A slider is connected to the bottom of the sliding frame, and the slider slides in cooperation with the guide rail. A cylinder mounting seat is fixedly connected to the sliding base, and the drive cylinder is hinged to the cylinder mounting seat. The piston rod of the drive cylinder is hinged to the bottom of the sliding frame. A chain bidirectional steering head, a chain slide rail, and a chain rolling shaft are connected to the inside of each side of the sliding frame. The conveying chain passes through the steering head, the slide rail, and the rolling shaft in sequence to form a telescopic closed loop. The drive cylinder moves the sliding frame along the guide rail to adjust the conveying length.

[0006] Furthermore, the sliding frame is a square tube welded frame, with chain bidirectional steering heads, chain slide rails and chain rolling shafts symmetrically distributed on both sides, and the chain slide rails are connected along the length of the sliding frame.

[0007] Furthermore, the inner wall of the chain slide rail has a guide groove that matches the conveyor chain roller.

[0008] Furthermore, the height of the welded plate is greater than the thickness of the sliding base, creating a gap between the guide rail and the sliding base.

[0009] Furthermore, an adjustment bracket is connected to the main frame, and a tensioning sprocket is installed on the adjustment bracket. The adjustment bracket is connected to the main frame through an elongated hole bolt and can move along its length.

[0010] Furthermore, the drive cylinder is a bidirectional cylinder, which drives the sliding frame to extend and retract, and the conveyor chain extends and retracts synchronously in a closed loop, and the drive motor drives the conveyor chain transmission.

[0011] Furthermore, the slider is made of polytetrafluoroethylene, and has a U-shaped groove on its inner side that matches the guide rail, with the groove fitting snugly to the guide rail.

[0012] Furthermore, it also includes a support frame containing at least two metal support columns, the tops of which are welded to the main frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The sliding frame is driven by a drive cylinder to move back and forth along the guide rail, achieving stepless adjustment of the conveying length. When it extends, the piston rod pushes the sliding frame forward, and when it shortens, the piston rod pulls the sliding frame backward. Unlike traditional fixed-length conveyors, it does not require purchasing multiple pieces of equipment of different specifications or using multiple conveyor lines for connection, effectively reducing equipment purchase costs and floor space. At the same time, when the sliding frame moves, the conveying chain extends and retracts synchronously through the retractable closed loop formed by the chain bidirectional steering head, chain slide rail, and chain rolling shaft, which can adapt to the conveying needs from a fixed position to multiple workstations at different distances.

[0014] 2. The drive motor drives the drive sprocket to rotate, which, together with the tension sprocket, forms a stable transmission circuit for the conveyor chain, ensuring the basic material conveying function. When the sliding frame extends or retracts, causing changes in the chain length, the tension sprocket can be moved via the adjusting bracket on the main frame to adjust its distance from the drive sprocket, ensuring that the chain always maintains appropriate tension and avoiding conveying failures caused by the chain being too loose and slipping or too tight and damaged. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the overall external structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a front view of the present invention.

[0016] In the diagram: 1. Chain machine body; 2. Sliding frame; 3. Chain slide rail; 4. Drive cylinder; 5. Guide rail; 6. Support frame; 7. Chain rolling shaft; 8. Chain bidirectional steering head; 9. Telescopic component; 10. Cylinder mounting base; 11. Sliding base; 12. Drive motor; 13. Drive sprocket; 14. Conveyor chain; 15. Main frame; 16. Welded plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a telescopic chain conveying mechanism, including a chain machine body 1, a main frame 15 connected inside the chain machine body 1, a drive motor 12 connected to one end of the main frame 15 by a motor seat bolt, a drive sprocket 13 connected to the output shaft of the drive motor 12, a tension sprocket connected to the other end of the main frame 15, and a conveying chain 14 wound around the drive sprocket 13 and the tension sprocket; a telescopic component 9, which is located at the end of the chain machine body 1, including a sliding frame 2, a sliding base 11, a guide rail 5, and a drive cylinder 4; welding plates are welded to both sides of the upper surface of the sliding base 11. 16. The guide rail 5 is fixedly connected to the welded plate 16 by bolts. The bottom of the sliding frame 2 is connected to a slider, which slides in cooperation with the guide rail 5. A cylinder mounting seat 10 is fixedly connected to the sliding base 11. The drive cylinder 4 is hinged to the cylinder mounting seat 10, and the piston rod of the drive cylinder 4 is hinged to the bottom of the sliding frame 2. The sliding frame 2 is connected to a chain bidirectional steering head 8, a chain slide rail 3, and a chain rolling shaft 7 on each side. The conveying chain 14 passes through the chain bidirectional steering head 8, the chain slide rail 3, and the chain rolling shaft 7 in sequence to form a retractable closed loop. The drive cylinder 4 moves the sliding frame 2 along the guide rail 5 to adjust the conveying length.

[0019] In specific implementation, the drive motor 12 drives the drive sprocket 13 to rotate through the output shaft. The drive sprocket 13 cooperates with the tension sprocket at the other end of the main frame 15 to pull the winding conveyor chain 14 to form a transmission circuit and realize the basic function of material conveying. The telescopic component 9 is set at the end of the chain machine body 1. It achieves telescopic movement through the sliding cooperation structure of the sliding base 11, the guide rail 5 and the sliding frame 2, combined with the driving force of the drive cylinder 4. The upper surface of the sliding base 11 is welded with welding plates 16 on both sides. The guide rail 5 is fixed to the welding plates 16 by bolts. The bottom slider of the sliding frame 2 slides with the guide rail 5 to form a guiding structure to avoid the problems of offset and jamming during telescopic movement. The drive cylinder 4 is hinged to the cylinder mounting seat 10 of the sliding base 11, and the piston rod is hinged to the bottom of the sliding frame 2. The sliding frame 2 is driven to move along the guide rail 5 by the extension and retraction driving force of the cylinder, so as to realize stepless adjustment of the conveying length. The sliding frame 2 is internally connected to a chain bidirectional steering head 8, a chain slide rail 3, and a chain rolling shaft 7 on each side. The conveyor chain 14 passes around the three in sequence to form a retractable closed loop. When the drive cylinder 4 drives the sliding frame 2 to extend, the chain changes direction through the chain bidirectional steering head 8, is supported and guided by the chain slide rail 3, and transitions through the chain rolling shaft 7, ensuring that the closed loop chain extends synchronously and avoiding chain disconnection or slippage.

[0020] See Figure 1-4 The sliding frame 2 is a square tube welded frame, with chain bidirectional steering heads 8, chain slide rails 3 and chain rolling shafts 7 symmetrically distributed on both sides. The chain slide rails 3 are connected along the length of the sliding frame 2.

[0021] In practice, the square tube welded frame ensures the structural strength of the sliding frame 2 and prevents the chain from shifting due to frame deformation during expansion and contraction; the symmetrical distribution of components on both sides ensures that the conveying chain 14 is subjected to balanced force within the closed loop, reducing unilateral wear or excessive stretching; the chain slide rail 3 is connected along the length direction, further extending the chain support path and preventing unstable conveying caused by chain swaying.

[0022] See Figure 1-4 The inner wall of the chain slide rail 3 has a guide groove that matches the rollers of the conveyor chain 14.

[0023] In practice, the guide groove works in conjunction with the chain roller to form a guiding structure for the chain, ensuring that the chain always moves in close contact with the chain slide rail 3 during the extension and retraction process, and avoiding chain derailment caused by changes in the moving speed of the sliding frame 2 or slight vibrations of the ground.

[0024] See Figure 1-4 The height of the welded plate 16 is greater than the thickness of the sliding base 11, so that a gap is formed between the guide rail 5 and the sliding base 11.

[0025] In practice, the gap is designed to accommodate small debris on the surface of the base, preventing debris from getting stuck between the slider and the guide rail 5 and causing obstruction of expansion and contraction; at the same time, it prevents the slider from directly contacting and rubbing against the sliding base 11, reducing slider wear and ensuring that the sliding frame 2 moves along the guide rail 5.

[0026] See Figure 1-4 An adjusting bracket is connected to the main frame 15. The tensioning sprocket is installed on the adjusting bracket. The adjusting bracket is connected to the main frame 15 through a long oval hole bolt and can move along its length.

[0027] In practice, the distance between the tension sprocket and the drive sprocket 13 is adjusted by moving the adjustment bracket to adapt to the length changes after the chain stretches and extends, ensuring that the chain always maintains a suitable tension. This setting avoids conveyor slippage or component damage caused by improper chain tension and solves the problem that traditional fixed-length conveyors cannot adapt to different conveying distances.

[0028] See Figure 1-4 The drive cylinder 4 is a bidirectional cylinder. When the sliding frame 2 extends and retracts, the conveyor chain 14 extends and retracts synchronously in a closed loop. The drive motor 12 drives the conveyor chain 14 for transmission.

[0029] In practice, the bidirectional cylinder can achieve bidirectional adjustment of the extension and retraction of the sliding frame 2, adapting to the conveying needs of multiple workstations at different distances.

[0030] See Figure 1-4 The slider is made of polytetrafluoroethylene and has a U-shaped groove on the inside that matches the guide rail 5. The groove fits snugly against the guide rail 5.

[0031] In practice, polytetrafluoroethylene has excellent wear resistance and low friction properties, which can reduce frictional loss between the slider and the guide rail 5 and extend the service life of the component; while the U-shaped groove fits into the guide rail 5 to form a guiding structure, preventing the slider from detaching from the guide rail 5.

[0032] See Figure 1-4 It also includes a support frame 6, which contains at least two metal support columns, the top of which is welded to the main frame 15.

[0033] In practice, metal support columns enhance the support strength of the main frame 15 to prevent overall displacement caused by vibration during equipment operation.

[0034] Working principle: Start the drive motor 12. The drive motor 12 is fixed to one end of the main frame 15 by the motor seat bolts. Its output shaft drives the connected drive sprocket 13 to rotate. The other end of the main frame 15 is connected to the tension sprocket. The conveying chain 14 wrapped around the drive sprocket 13 and the tension sprocket forms a transmission circuit under the cooperation of the two, realizing the basic material conveying function. If the conveying length needs to be extended, the piston rod of the drive cylinder 4 extends, pushing the sliding frame 2 forward along the guide rail 5; if the conveying length needs to be shortened, the piston rod retracts, pulling the sliding frame 2 backward along the guide rail 5, thus realizing stepless adjustment of the conveying length. When the sliding frame 2 moves, the conveyor chain 14 passes in sequence around the chain bidirectional steering head 8, the chain slide rail 3, and the chain rolling shaft 7, forming a retractable closed loop that extends or contracts synchronously. When the length of the conveyor chain 14 changes due to the extension and retraction of the sliding frame 2, the tension of the chain is adjusted by the adjusting bracket on the main frame 15: the adjusting bracket is connected to the main frame 15 by a long oval hole bolt and can move along the length of the main frame 15. The tension sprocket installed on the adjusting bracket moves with the adjusting bracket, changing the distance between it and the drive sprocket 13, ensuring that the conveyor chain 14 always maintains a suitable tension, and avoiding slippage or damage to components due to improper tension.

Claims

1. A telescopic chain conveying mechanism, comprising a chain conveyor body (1), characterized in that, The chain machine body (1) is connected to a main frame (15). One end of the main frame (15) is connected to a drive motor (12) via a motor seat bolt. A drive sprocket (13) is connected to the output shaft of the drive motor (12). A tension sprocket is connected to the other end of the main frame (15). A conveyor chain (14) is wound around the drive sprocket (13) and the tension sprocket. Telescopic component (9), which is located at the end of the chain machine body (1), includes a sliding frame (2), a sliding base (11), a guide rail (5) and a drive cylinder (4). Welded plates (16) are welded to both sides of the upper surface of the sliding base (11). The guide rail (5) is fixedly connected to the welded plate (16) by bolts. A slider is connected to the bottom of the sliding frame (2), and the slider slides in cooperation with the guide rail (5). A cylinder mounting seat (10) is fixedly connected to the sliding base (11). The driving cylinder (4) is hinged to the cylinder mounting seat (10), and the piston rod of the driving cylinder (4) is hinged to the bottom of the sliding frame (2). The sliding frame (2) is connected to a chain bidirectional steering head (8), a chain slide rail (3) and a chain rolling shaft (7) on both sides. The conveying chain (14) passes around the steering head (8), the slide rail (3) and the rolling shaft (7) in sequence to form a retractable closed loop. The driving cylinder (4) moves the sliding frame (2) along the guide rail (5) to adjust the conveying length.

2. The telescopic chain conveyor mechanism as described in claim 1, characterized in that: The sliding frame (2) is a square tube welded frame, with chain bidirectional steering heads (8), chain slide rails (3) and chain rolling shafts (7) symmetrically distributed on both sides. The chain slide rails (3) are connected along the length of the sliding frame (2).

3. The telescopic chain conveyor mechanism as described in claim 1, characterized in that: The inner wall of the chain slide rail (3) has a guide groove that matches the rollers of the conveyor chain (14).

4. The telescopic chain conveyor mechanism as described in claim 1, characterized in that: The height of the welded plate (16) is greater than the thickness of the sliding base (11), so that a gap is formed between the guide rail (5) and the sliding base (11).

5. The telescopic chain conveyor mechanism as described in claim 1, characterized in that: An adjustment bracket is connected to the main frame (15), and a tension sprocket is installed on the adjustment bracket. The adjustment bracket is connected to the main frame (15) through a long oval hole bolt and can move along its length.

6. The telescopic chain conveyor mechanism as described in claim 1, characterized in that: The drive cylinder (4) is a bidirectional cylinder. When the sliding frame (2) extends and retracts, the conveyor chain (14) extends and retracts synchronously in a closed loop, and the drive motor (12) drives the conveyor chain (14) to transmit power.

7. The telescopic chain conveyor mechanism as described in claim 1, characterized in that: The slider is made of polytetrafluoroethylene and has a U-shaped groove on its inner side that matches the guide rail (5). The groove is fitted and connected to the guide rail (5).

8. The telescopic chain conveyor mechanism as described in claim 1, characterized in that: It also includes a support frame (6), which contains at least two metal support columns, the top of which are welded to the main frame (15).

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