Chain tensioning suspension conveying mechanism

Abstract

The utility model provides a chain tensioning suspension conveying mechanism, which relates to the technical field of suspension conveying mechanisms and comprises a mounting plate and a guide rail, connecting plates are symmetrically and fixedly mounted on the inner wall of the top of the guide rail, a rotating shaft is rotatably connected to the bottom of each connecting plate, a chain wheel is fixedly mounted at the bottom end of each rotating shaft, and a chain is sleeved outside each chain wheel. The number of the connecting plates is two, and a first motor is fixedly installed at the top of one connecting plate. According to the chain tensioning device, when the chain is stretched and looses, the tensioning wheel actively gets close to the loose part of the chain under the action of inward elastic force of the spring and applies inward acting force to tension the chain again, so that the good meshing precision of the chain and the chain wheel is recovered; the problem that in the background technology, due to the fact that a traditional suspension conveyor is not provided with a chain tensioning mechanism, the meshing precision of a chain and a chain wheel is greatly reduced after the chain extends is effectively solved, and it is guaranteed that parts or products can be accurately conveyed according to a set route.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of suspension conveying mechanism, especially chain tensioning suspension conveying mechanism. BACKGROUND

[0002] In the industrial production field, the suspension conveying machine is widely used in the production and transportation of various products. For example, in the automobile manufacturing workshop, the parts need to be accurately conveyed to different workstations for assembly, and in the food processing factory, the packaged products need to be efficiently transferred to the storage area.

[0003] The traditional suspension conveying machine has the following disadvantages: since the chain is not provided with a tensioning mechanism, as the use time increases, the chain will inevitably elongate due to the fatigue of its own material and the continuous friction with the chain wheel and other components during long-term high-strength operation. Once the chain elongates and lacks tensioning mechanism adjustment, the meshing precision between the chain and the chain wheel will be greatly reduced, which directly causes frequent slipping problems during the conveying process. The originally uniform and stable conveying rhythm is disrupted, and the parts or products cannot be accurately delivered to the designated workstation according to the specified time and route, greatly reducing the production efficiency. Therefore, improvement is needed. SUMMARY

[0004] The utility model aims at solving the problems mentioned in the background art and provides a chain tensioning suspension conveying mechanism.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a chain tensioning suspension conveying mechanism, comprising a mounting plate and a guide rail, the top inner wall of the guide rail is symmetrically fixedly installed with a connecting plate, the bottom of the connecting plate is rotatably connected with a rotating shaft, the bottom end of the rotating shaft is fixedly installed with a chain wheel, the outside of the chain wheel is sleeved with a chain, the number of the connecting plates is two groups, one of the connecting plates is fixedly installed with a motor one at the top, the inside of the guide rail is uniformly slidably connected with a pulley assembly, the bottom of the pulley assembly is fixedly installed with a hook, the top side of the guide rail is fixedly installed with an L plate, the inside of the L plate is slidably connected with a sliding column, the end of the sliding column close to the guide rail is fixedly installed with a U-shaped bracket, the inside of the U-shaped bracket is rotatably connected with a tensioning wheel, the end of the sliding column away from the U-shaped bracket is fixedly installed with a limiting round block, the outer wall of the sliding column is sleeved with a spring.

[0006] Preferably, the number of rotating shafts is two groups, and one of the rotating shafts is fixedly connected with the output end of the motor one.

[0007] Preferably, the number of chain wheels is two groups, and the chain wheels are meshed with each other between the two groups of chain wheels and the chain, and the hook is fixedly connected with the chain.

[0008] Preferably, one end of the spring is fixedly connected to the L-plate, and the other end of the spring is fixedly connected to the U-shaped frame.

[0009] Preferably, the top of the mounting plate has symmetrical through-holes.

[0010] Preferably, a connecting rod is symmetrically fixedly installed on the top of the guide rail, and a first insertion hole is evenly opened through one side of the connecting rod. A fixing sleeve is symmetrically fixedly installed on the bottom of the mounting plate, and a second insertion hole is opened through one side of the bottom of the fixing sleeve. A fixing plate is fixedly installed on the inner side of the fixing sleeve, and guide columns are symmetrically fixedly installed on the inner side of the fixing plate. A second motor is fixedly installed on the outer side of the fixing plate, and a bidirectional lead screw is fixedly installed at the output end of the second motor. A sliding plate is symmetrically threaded to the outer wall of the bidirectional lead screw, and insertion columns are symmetrically fixedly installed on the outer side of the sliding plate.

[0011] Preferably, both the first and second insertion holes are slidably connected to the insertion post, the connecting rod is slidably connected to the fixing sleeve, and the sliding plate is slidably connected to the guide post.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when the chain elongates and shows signs of slack, the tensioning wheel actively approaches the slack part of the chain under the inward elastic force of the spring, and applies an inward force to tighten the chain again, so that the chain restores good meshing accuracy with the sprocket. This effectively solves the problem mentioned in the background art that the meshing accuracy between the chain and the sprocket is greatly reduced after the chain elongates due to the lack of a chain tensioning mechanism in traditional overhead conveyors, and ensures that parts or products can be accurately transported according to the predetermined route.

[0014] 2. In this utility model, by starting motor two, motor two drives the bidirectional lead screw to rotate. Since the outer wall of the bidirectional lead screw is symmetrically threaded with a sliding plate, and the sliding plate is slidably connected to the guide post, when the bidirectional lead screw rotates, the sliding plate will move inward under the constraint of the guide post, and the insertion post on the outer side of the sliding plate will move accordingly. When the insertion post is pulled out from the original insertion hole one and insertion hole two, the connecting rod at the top of the guide rail can be moved up and down along the fixed sleeve to a suitable height. After moving, motor two is started in reverse so that the insertion post is inserted into the new position of insertion hole one and insertion hole two, thereby realizing the fixed adjustment of the guide rail height. This design realizes the adjustment of the guide rail height and meets the requirements of different production processes for conveying height. Attached Figure Description

[0015] Figure 1 This utility model provides an overall structural schematic diagram of a chain tensioning suspension conveyor mechanism;

[0016] Figure 2Part structure schematic view of chain tension suspension conveying mechanism is provided for the utility model.

[0017] Figure 3 Side view structure schematic view of chain tension suspension conveying mechanism is provided for the utility model.

[0018] Figure 4 Part structure schematic view of chain tension suspension conveying mechanism is provided for the utility model. Figure 3 Enlarged view of A in the middle.

[0019] Figure 5 Part structure schematic view of chain tension suspension conveying mechanism is provided for the utility model.

[0020] Legend: 1, mounting plate; 2, guide rail; 3, connecting plate; 4, rotating shaft; 5, chain wheel; 6, chain; 7, motor one; 8, pulley assembly; 9, hook; 10, L plate; 11, sliding column; 12, U-shaped frame; 13, tensioning wheel; 14, limiting round block; 15, spring; 16, connecting rod; 17, jack one; 18, fixed sleeve; 19, jack two; 20, fixed plate; 21, guide column; 22, motor two; 23, bidirectional screw; 24, sliding plate; 25, insertion column; 26, mounting hole. DETAILED DESCRIPTION

[0021] In order to make the above object, features and advantages of the utility model more clearly understood, the utility model will be further described below in conjunction with the drawings and embodiments.

[0022] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiments disclosed in the following description.

[0023] Embodiment 1: as Figures 1-4As shown, the utility model provides a technical scheme: a chain tensioning suspension conveying mechanism, including mounting plate 1 and guide rail 2, the top inner wall of guide rail 2 is fixedly installed with connecting plate 3 symmetrically, the bottom of connecting plate 3 is rotatably connected with rotating shaft 4, the bottom end of rotating shaft 4 is fixedly installed with sprocket 5, the outside of sprocket 5 is equipped with chain 6, the number of connecting plate 3 is two groups, and the top of one group of connecting plate 3 is fixedly installed with motor one 7, the inside of guide rail 2 is uniformly slidably connected with pulley assembly 8, the bottom of pulley assembly 8 is fixedly installed with hook 9, the top of guide rail 2 one side is fixedly installed with L plate 10, the inside of L plate 10 is slidably connected with sliding column 11, the end of sliding column 11 close to guide rail 2 is fixedly installed with U-shaped frame 12, the inside of U-shaped frame 12 is rotatably connected with tensioning wheel 13, the end of sliding column 11 away from U-shaped frame 12 is fixedly installed with limit round block 14, the outer wall of sliding column 11 is equipped with spring 15, the number of rotating shaft 4 is two groups, and one group of rotating shaft 4 is fixedly connected with the output end of motor one 7, the number of sprocket 5 is two groups, and the two groups of sprocket 5 are meshed with each other between chain 6, hook 9 is fixedly connected with chain 6, one end of spring 15 is fixedly connected between L plate 10, the other end of spring 15 is fixedly connected between U-shaped frame 12, and the top of mounting plate 1 is symmetrically provided with mounting hole 26.

[0024] In the embodiment, when chain 6 is elongated and appears slack, tensioning wheel 13 is driven to approach the slack part of chain 6 under the inward elastic force of spring 15, applies inward force to tighten chain 6 again, and makes chain 6 restore good meshing accuracy with sprocket 5, effectively solves the problem that the meshing accuracy of chain 6 with sprocket 5 is greatly reduced after chain 6 is elongated due to the absence of chain 6 tensioning mechanism in the conventional suspension conveyor, and ensures that parts or products can be accurately conveyed according to the predetermined route.

[0025] Embodiment 2: as shown in Figure 1 and Figure 5 As shown, the top of guide rail 2 is fixedly installed with connecting rod 16 symmetrically, the side of connecting rod 16 is uniformly provided with insertion hole one 17, the bottom of mounting plate 1 is fixedly installed with fixed sleeve 18 symmetrically, the bottom side of fixed sleeve 18 is provided with insertion hole two 19, the inside of fixed sleeve 18 is fixedly installed with fixed plate 20, the inside of fixed plate 20 is fixedly installed with guide column 21 symmetrically, the outside of fixed plate 20 is fixedly installed with motor two 22, the output end of motor two 22 is fixedly installed with bidirectional screw rod 23, the outer wall of bidirectional screw rod 23 is symmetrically screw-connected with sliding plate 24, the outside of sliding plate 24 is fixedly installed with insertion column 25 symmetrically, insertion hole one 17 and insertion hole two 19 are slidably connected with insertion column 25, connecting rod 16 is slidably connected with fixed sleeve 18, and sliding plate 24 is slidably connected with guide column 21.

[0026] In the embodiment, by starting the motor two 22, the motor two 22 drives the bidirectional screw rod 23 to rotate, because the outer wall of the bidirectional screw rod 23 is symmetrically screwed with the sliding plate 24, and the sliding plate 24 is slidably connected with the guide column 21, therefore, when the bidirectional screw rod 23 rotates, the sliding plate 24 will move inward respectively under the constraint of the guide column 21, and the insertion column 25 on the outside of the sliding plate 24 will move accordingly, when the insertion column 25 is pulled out from the original insertion hole one 17 and insertion hole two 19, the connecting rod 16 on the top of the guide rail 2 can be moved up and down along the fixed sleeve 18 to the appropriate height, after moving, the motor two 22 is started reversely, so that the insertion column 25 is inserted into the insertion hole one 17 and insertion hole two 19 in the new position, thereby realizing the fixed adjustment of the height of the guide rail 2, the design realizes the adjustment of the height of the guide rail 2, and meets the requirement of different production processes on the conveying height.

[0027] The working principle of this embodiment is as follows: When in use, the motor 7 is started, and its output end drives the shaft 4 connected to it to rotate, which in turn drives the sprocket 5 on the shaft 4 to rotate. Since the two sets of sprockets 5 are meshed with each other through the chain 6, the other set of sprockets 5 also rotates, realizing the cyclic operation of the chain 6. Since the hook 9 is fixed on the chain 6, and the pulley assembly 8 installed on the top of the hook 9 slides inside the guide rail 2, the hook 9 can carry the suspended parts or products and transport them stably along the path planned by the guide rail 2. In this process, the pulley assembly 8 plays a crucial auxiliary role. The sliding of the pulley assembly 8 inside the guide rail 2 greatly reduces the friction when the hook 9 moves, making the chain 6 drive the hook 9 to operate more smoothly and efficiently. During the operation of chain 6, if chain 6 elongates for various reasons, the original meshing state between chain 6 and sprocket 5 is broken, and chain 6 will show signs of slack during operation. At this time, tension wheel 13 plays a crucial role. In the initial state, spring 15 provides tension wheel 13 with a constant preload in the direction of the guide rail 2. When chain 6 elongates, causing some of its links to slack, tension wheel 13, under the continuous inward elastic force of spring 15, actively approaches the slack part of chain 6. As tension wheel 13 continuously approaches chain 6, the surface of tension wheel 13 contacts the chain links of chain 6. An inward force is gradually applied, which re-tightens the slack portion of chain 6, thereby adjusting the overall tension of chain 6. During this process, chain 6 is pushed inward by tension wheel 13, restoring good meshing accuracy with sprocket 5. At the same time, the continuous elasticity of spring 15 ensures that tension wheel 13 can dynamically adjust the magnitude of the inward force on chain 6 according to the actual elongation of chain 6, ensuring that chain 6 is always in a suitable tension state, effectively avoiding slippage caused by chain 6 slack during the conveying process, and ensuring the stability and accuracy of the conveying. When the height of guide rail 2 needs to be adjusted, motor 22 is started. Motor 22 drives the bidirectional lead screw 23 to rotate. Since the outer wall of the bidirectional lead screw 23 is symmetrically threaded with the sliding plate 24 and the sliding plate 24 is slidably connected to the guide post 21, when the bidirectional lead screw 23 rotates, the sliding plate 24 will move inward under the constraint of the guide post 21. The insertion post 25 on the outer side of the sliding plate 24 will move accordingly. When the insertion post 25 is pulled out from the original insertion hole 17 and insertion hole 19, the connecting rod 16 at the top of guide rail 2 can be moved up and down along the fixed sleeve 18 to a suitable height. After moving, motor 22 is started in reverse so that the insertion post 25 is inserted into the new position insertion hole 17 and insertion hole 19, thereby realizing the fixed adjustment of the height of guide rail 2.

[0028] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A chain tensioning suspension conveyor mechanism, comprising a mounting plate (1) and a guide rail (2), characterized in that: The top inner wall of the guide rail (2) is symmetrically fixed with connecting plates (3), and the bottom of the connecting plates (3) is rotatably connected with a rotating shaft (4). The bottom end of the rotating shaft (4) is fixedly installed with a sprocket (5), and a chain (6) is sleeved on the outside of the sprocket (5). There are two sets of connecting plates (3), one of which has a motor (7) fixedly installed on the top. The inside of the guide rail (2) is uniformly slidably connected with a pulley assembly (8), and the bottom of the pulley assembly (8) is fixedly installed with a motor (7). The guide rail (2) is equipped with a hook (9). An L-plate (10) is fixedly installed on one side of the top. A sliding column (11) is slidably connected inside the L-plate (10). A U-shaped frame (12) is fixedly installed at one end of the sliding column (11) near the guide rail (2). A tensioning wheel (13) is rotatably connected inside the U-shaped frame (12). A limit block (14) is fixedly installed at one end of the sliding column (11) away from the U-shaped frame (12). A spring (15) is sleeved on the outer wall of the sliding column (11).

2. The chain tensioning suspension conveyor mechanism according to claim 1, characterized in that: The number of the rotating shafts (4) is two sets, one of which is fixedly connected to the output end of the motor (7).

3. The chain tensioning suspension conveyor mechanism according to claim 1, characterized in that: There are two sets of sprockets (5), and the two sets of sprockets (5) mesh with the chain (6). The hook (9) is fixedly connected to the chain (6).

4. The chain tensioning suspension conveyor mechanism according to claim 1, characterized in that: One end of the spring (15) is fixedly connected to the L plate (10), and the other end of the spring (15) is fixedly connected to the U-shaped frame (12).

5. The chain tensioning suspension conveyor mechanism according to claim 1, characterized in that: The top of the mounting plate (1) is symmetrically provided with mounting holes (26).

6. The chain tensioning suspension conveyor mechanism according to claim 1, characterized in that: A connecting rod (16) is symmetrically fixedly installed on the top of the guide rail (2). A first insertion hole (17) is evenly opened through one side of the connecting rod (16). A fixing sleeve (18) is symmetrically fixedly installed on the bottom of the mounting plate (1). A second insertion hole (19) is opened through one side of the bottom of the fixing sleeve (18). A fixing plate (20) is fixedly installed on the inner side of the fixing sleeve (18). A guide post (21) is symmetrically fixedly installed on the inner side of the fixing plate (20). A second motor (22) is fixedly installed on the outer side of the fixing plate (20). A bidirectional lead screw (23) is fixedly installed at the output end of the second motor (22). A sliding plate (24) is symmetrically threaded on the outer wall of the bidirectional lead screw (23). An insertion post (25) is symmetrically fixedly installed on the outer side of the sliding plate (24).

7. The chain tensioning suspension conveyor mechanism according to claim 6, characterized in that: Both the first insertion hole (17) and the second insertion hole (19) are slidably connected to the insertion post (25), the connecting rod (16) is slidably connected to the fixing sleeve (18), and the sliding plate (24) is slidably connected to the guide post (21).

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