Chain conveyor

Abstract

The utility model provides a chain conveyor which comprises a main chain arranged on a main machine frame and an auxiliary chain arranged on an auxiliary machine frame, a driving mechanism used for driving the main chain to rotate is arranged on the main machine frame, the auxiliary chain is arranged at the tail end of the main chain, and a middle shaft is arranged at the tail end of the main machine frame. A middle chain wheel used for driving the auxiliary chain and the main chain to rotate synchronously is arranged on the middle shaft in a rotating mode, an overturning base fixedly connected with the end of the auxiliary rack is arranged on the middle shaft in a rotating mode, and an overturning mechanism used for driving the auxiliary rack to be folded or unfolded in a rotating mode along the middle shaft is arranged on the main rack. The turnover mechanism comprises a turnover motor and a speed reducer which are arranged on the supporting frame, the turnover motor is in transmission connection with the speed reducer, and a crank connecting rod assembly is arranged between the output end of the speed reducer and the auxiliary machine frame. According to the chain conveyor provided by the utility model, the turnover mechanism is adopted to drive the auxiliary rack to rotate and unfold or fold along the middle shaft, so that when a fire occurs, a space is vacated for the fireproof rolling shutter door to fall down, or a worker is allowed to pass through a conveying line to escape.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a chain conveyor. Background Art

[0002] In the factory building for the production and processing of products, conveyor belts are generally used for item transmission between various processes. The conveyor belts generally span multiple factory buildings to achieve the purpose of long-distance transportation. Due to the fire safety requirements in the factory building, fireproof rolling doors are installed between the factory buildings. When a fire occurs, the fireproof rolling doors are lowered to isolate the fire and ensure life and property safety. However, the installation of the conveyor belt makes the fireproof rolling door can only be lowered above the conveyor belt and cannot be completely closed, thus unable to guarantee life and property safety. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a chain conveyor.

[0004] The technical solution adopted by the utility model to solve its technical problem is: a chain conveyor, including a main chain arranged on a main frame and a sub-chain arranged on a sub-frame. A driving mechanism for driving the main chain to rotate is arranged on the main frame. The sub-chain is arranged at the end of the main chain. An intermediate shaft is arranged at the end of the main frame. An intermediate sprocket for driving the sub-chain and the main chain to rotate synchronously is rotatably arranged on the intermediate shaft. A turning seat fixedly connected to the end of the sub-frame is rotatably arranged on the intermediate shaft. A turning mechanism for driving the sub-frame to rotate and fold or rotate and unfold along the intermediate shaft is arranged on the main frame. The turning mechanism includes a turning motor and a speed reducer arranged on a support frame. The turning motor is in transmission connection with the speed reducer. A crank and connecting rod assembly is arranged between the output end of the speed reducer and the sub-frame.

[0005] The conveyor is formed by the mutual cooperation and splicing of multiple main chains and sub-chains. The sub-frame and the sub-chain arranged on the sub-frame are arranged under the fireproof rolling door and can be used to connect the main chains on both sides. Both ends of the intermediate shaft are fixedly connected to the main frame. The sub-frame is rotatably connected to the intermediate shaft through the turning seat. When the fireproof rolling door needs to be lowered and closed, the turning mechanism drives the sub-frame to rotate and fold above the main chain along the intermediate shaft, avoiding the space under the fireproof rolling door. The turning mechanism controls the action of the crank and connecting rod assembly through the turning motor and the speed reducer, driving the sub-frame to rotate along the intermediate shaft. The support frame is used to support the weights of the turning motor, the speed reducer, the crank and connecting rod assembly, and the sub-frame.

[0006] Further, the crank and connecting rod assembly includes a rotating force arm arranged at the output end of the turning motor. A cross beam is arranged on the sub-frame. A connecting seat is arranged on the cross beam. An adjusting rod hinged to the rotating force arm and the connecting seat respectively is arranged between the rotating force arm and the connecting seat, and the length of the adjusting rod is adjustable.

[0007] The flipping motor and the speed reducer drive the rotating force arm to rotate, and the rotating force arm drives the adjusting rod to lift or lower the auxiliary frame. The length of the adjusting rod is adjustable to adjust the rotation and folding angle of the auxiliary frame.

[0008] Furthermore, the driving mechanism includes a driving motor disposed on the main frame and a transmission rod disposed on one side of the driving motor. A transmission chain is provided between the output end of the driving motor and the transmission rod, and transmission sprockets for cooperating with the main chain are provided at both ends of the transmission rod.

[0009] Furthermore, tension wheels for adjusting the tightness of the main chain are provided on both sides of the transmission sprocket, and waist-shaped holes for cooperating with the tension wheels are provided on the main frame.

[0010] Furthermore, a backing plate is provided under the chain on the main frame and the auxiliary frame, and a guiding groove is provided on the backing plate.

[0011] Furthermore, in order to prevent articles from falling off the chain during transportation, guiding plates are provided on both sides of the main chain and the auxiliary chain. The guiding plates are inserted and connected with positioning bolts provided on the main frame and the auxiliary frame. The insertion and connection of the guiding plates with the positioning bolts facilitate the detachable of the guiding plates and avoid interference between the guiding plates on the main frame and the auxiliary frame when the auxiliary frame rotates and folds.

[0012] The beneficial effects of the present utility model are as follows: A chain conveyor provided by the present utility model adopts a flipping mechanism to drive the auxiliary frame to rotate and unfold or fold along the intermediate shaft. When a fire occurs, space is vacated for the fireproof rolling shutter door to drop, or it allows staff to escape through the conveying line. Description of the Drawings

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic structural view of the best embodiment of the present utility model;

[0015] Figure 2 is a side view of the best embodiment of the present utility model;

[0016] Figure 3 is a top view of the best embodiment of the present utility model;

[0017] Figure 4 is a schematic structural view of the intermediate sprocket;

[0018] Figure 5 is a schematic structural view of the flipping seat.

[0019] In the figure: 1. Main frame, 1-1. Waist-shaped hole, 2. Sub-frame, 3. Main chain, 4. Sub-chain, 5. Intermediate shaft, 6. Intermediate sprocket, 7. Tipping seat, 8. Tipping motor, 9. Reducer, 10. Support frame, 11. Rotating force arm, 12. Cross beam, 12-1. Connecting seat, 13. Adjusting rod, 14. Driving motor, 15. Transmission rod, 16. Transmission chain, 17. Transmission sprocket, 18. Tensioning wheel, 19. Cushion plate, 20. Guide plate. Detailed implementation mode

[0020] Now, the present utility model will be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present utility model in a schematic manner. Therefore, it only shows the components related to the present utility model.

[0021] As Figures 1-5 shown, a chain conveyor of the present utility model includes a main chain 3 provided on the main frame 1 and a sub-chain 4 provided on the sub-frame 2. A driving mechanism for driving the main chain 3 to rotate is provided on the main frame 1. The sub-chain 4 is provided at the end of the main chain 3. An intermediate shaft 5 is provided at the end of the main frame 1. An intermediate sprocket 6 for driving the sub-chain 4 to rotate synchronously with the main chain 3 is rotatably provided on the intermediate shaft 5. A bearing is provided between the intermediate sprocket 6 and the intermediate shaft 5. A tipping seat 7 fixedly connected to the end of the sub-frame 2 is rotatably provided on the intermediate shaft 5. A bearing is provided between the tipping seat 7 and the intermediate shaft 5. A tipping mechanism for driving the sub-frame 2 to rotate and fold or rotate and unfold along the intermediate shaft 5 is provided on the main frame 1. The tipping mechanism includes a tipping motor 8 and a reducer 9 provided on the support frame 10. Support legs are provided below the support frame 10. The tipping motor 8 is in transmission connection with the reducer 9. A crank and connecting rod assembly is provided between the output end of the reducer 9 and the sub-frame 2.

[0022] The crank and connecting rod assembly includes a rotating force arm 11 provided at the output end of the tipping motor 8. A cross beam 12 is provided on the sub-frame 2. A connecting seat 12-1 is provided on the cross beam 12. An adjusting rod 13 respectively hinged to the rotating force arm 11 and the connecting seat 12-1 is provided between the rotating force arm 11 and the connecting seat 12-1. The length of the adjusting rod 13 is adjustable.

[0023] The driving mechanism includes a driving motor 14 provided on the main frame 1 and a transmission rod 15 provided on one side of the driving motor 14. A transmission chain 16 is provided between the output end of the driving motor 14 and the transmission rod 15. Transmission sprockets 17 cooperating with the main chain 3 are provided at both ends of the transmission rod 15.

[0024] Tensioning wheels 18 for adjusting the tightness of the main chain 3 are provided on both sides of the transmission sprocket 17. Waist-shaped holes 1-1 cooperating with the tensioning wheels 18 are provided on the main frame.

[0025] The main frame 1 and the auxiliary frame 2 are provided with a backing plate 19 disposed below the chain, and the backing plate 19 is provided with a guide groove.

[0026] Guide plates 20 are arranged on both sides of the main chain 3 and the auxiliary chain 4, and the guide plates 20 are inserted and connected with positioning bolts arranged on the main frame 1 and the auxiliary frame 2.

[0027] Working process:

[0028] When a fire breaks out, the turning motor 8 drives the speed reducer 9 to start, the speed reducer 9 drives the rotating lever 11 to rotate, the rotating lever 11 drives the adjusting rod 13 to jack up the auxiliary frame 2. When the auxiliary frame 2 rotates more than 90° along the intermediate shaft 5, space is vacated for the fireproof rolling shutter door to fall, or it allows the staff to escape through the conveyor line.

[0029] In the present utility model, directions and references (e.g., up, down, left, right, etc.) may be used only to assist in the description of the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the claimed subject matter is defined only by the appended claims and their equivalents.

[0030] Taking the above ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can make various changes and modifications completely within the scope not departing from the present utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A chain conveyor, characterized in that: The invention comprises a main chain (3) arranged on a main frame (1) and a secondary chain (4) arranged on a secondary frame (2); the main frame (1) is provided with a driving mechanism for driving the main chain (3) to rotate; the secondary chain (4) is arranged at the end of the main chain (3); an intermediate shaft (5) is provided at the end of the main frame (1); an intermediate sprocket (6) for driving the secondary chain (4) to rotate synchronously with the main chain (3) is rotatably provided on the intermediate shaft (5); a turning seat (7) fixedly connected to the end of the secondary frame (2) is rotatably provided on the intermediate shaft (5); a turning mechanism for driving the secondary frame (2) to rotate and fold or rotate and unfold along the intermediate shaft (5) is provided on the main frame (1); the turning mechanism comprises a turning motor (8) and a reducer (9) arranged on a support frame (10); the turning motor (8) is transmission-connected to the reducer (9); a crank connecting rod assembly is provided between the output end of the reducer (9) and the secondary frame (2).

2. A chain conveyor according to claim 1, characterized in that: The crank-connecting rod assembly comprises a rotating force arm (11) arranged at the output end of the tilting motor (8); a crossbeam (12) is arranged on the auxiliary frame (2); a connecting seat (12-1) is arranged on the crossbeam (12); an adjusting rod (13) is arranged between the rotating force arm (11) and the connecting seat (12-1) and is respectively hinged to the rotating force arm (11) and the connecting seat (12-1); and the length of the adjusting rod (13) is adjustable.

3. A chain conveyor according to claim 1, characterized in that: The driving mechanism comprises a driving motor (14) arranged on a main frame (1) and a transmission rod (15) arranged on one side of the driving motor (14); a transmission chain (16) is arranged between an output end of the driving motor (14) and the transmission rod (15); and transmission sprockets (17) cooperating with the main chain (3) are arranged at both ends of the transmission rod (15).

4. A chain conveyor as claimed in claim 3, characterized in that: Tension wheels (18) for adjusting the tightness of the main chain (3) are provided on both sides of the transmission sprocket (17), and waist-shaped holes (1-1) cooperating with the tension wheels (18) are provided on the main frame (1).

5. A chain conveyor according to claim 1, characterized in that: The main frame (1) and the auxiliary frame (2) are provided with a pad (19) which is arranged below the chain, and the pad (19) is provided with a guide groove.

6. A chain conveyor according to claim 1, characterized in that: Guide plates (20) are provided on both sides of the main chain (3) and the auxiliary chain (4), and the guide plates (20) are plug-connected to positioning bolts provided on the main frame (1) and the auxiliary frame (2).

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