Chain conveyor mechanism adaptive adjustment mechanism

Abstract

The utility model relates to chain conveyor technical field, concretely is a kind of chain conveyor mechanism self-adapting adjusting mechanism, including conveyor body, the conveyor body includes rack, the inner side wall of rack is equipped with driving sprocket, driven sprocket and chain body, further include: mounting bracket, with rack fixed connection, the inside rotation of mounting bracket is connected with two connecting shafts, the outer wall of two connecting shafts is all sleeved and is fixed with gear, the inner bottom surface of mounting bracket is opened with rectangular slot. In the utility model, by the cooperation setting between upper wheel and lower wheel, the slack condition of chain body can be monitored in real time, when chain body slackens due to abrasion, deformation or load change, spring on lower wheel will contract, make lower wheel drop, and then drive upper wheel to rise by the transmission of rack two, gear and rack one, make chain body re-tight, realize the self-adapting adjustment of chain body tension, improve the stability and reliability of chain conveyor.

Description

Technical Field

[0001] This utility model relates to the field of chain conveyor technology, specifically an adaptive adjustment mechanism for a chain conveyor. Background Technology

[0002] Chain conveyors are material conveying equipment that uses chains as traction and load-bearing components. The chains can be ordinary sleeve roller conveyor chains or various other special chains (such as accumulation chains and double-speed chains). Chain conveyors have a large conveying capacity and are mainly used to convey pallets, large turnover boxes, etc. The conveyor chain has various structural forms and a variety of accessories, making it easy to realize accumulation conveying and can be used as an assembly line. After prolonged operation, chain conveyors may experience chain deformation and loosening due to wear, fatigue, and load variations. This can lead to chain detachment during transport, causing damage to the device. Traditional chain conveyors often lack the ability to monitor chain slack in real time, requiring periodic manual tightening or the use of simple fixed tensioning devices, which suffer from problems such as delayed response and inconvenient adjustment. Utility Model Content

[0003] The purpose of this invention is to provide an adaptive adjustment mechanism for a chain conveyor to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An adaptive adjustment mechanism for a chain conveyor includes a conveyor body, the conveyor body comprising a frame, and a driving sprocket, a driven sprocket, and a chain body mounted on the inner side wall of the frame, and further comprising: The mounting bracket is fixedly connected to the frame. The mounting bracket has two rotatably connected internally. Gears are fixedly fitted on the outer walls of the two connecting shafts. A rectangular groove is opened through the inner bottom surface of the mounting bracket. Strip grooves are opened on the front and rear inner side walls of the mounting bracket. The upper wheel can move up and down to adjust the tension of the chain body. A long column that is inserted into a rectangular slot is fixedly connected to its bottom. A rack is fixedly connected to the left and right side walls of the long column. A strip rod is fixedly connected to the front and rear side walls of the long column. The two racks mesh with two gears respectively. The lower wheel is provided in two parts. The bottom of each lower wheel is fixedly connected to a short column. The opposite sidewalls of the two short columns are fixedly connected to racks. The racks mesh with two gears respectively. Springs are fixedly connected between the bottom surface of the two short columns and the inner bottom surface of the mounting frame.

[0005] Furthermore, the outer wall of the mounting frame is fixedly connected to two fixing rods, and the two fixing rods are fixedly connected to the frame.

[0006] Furthermore, the mounting bracket has sliding grooves on both its left and right inner sidewalls, and two round holes on its bottom surface.

[0007] Furthermore, sliders are fixedly connected to the sidewalls of the two short columns that are far apart, and the two sliders are slidably connected to the two grooves respectively.

[0008] Furthermore, a connecting rod is fixedly connected between the two short columns.

[0009] Furthermore, the bottom surfaces of both short columns are connected to counterweights by ropes.

[0010] Furthermore, limit blocks are fixedly connected to the top and bottom ends of both of the two strip rods.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By coordinating the upper and lower wheels, the slack of the chain body can be monitored in real time. When the chain body becomes slack due to wear, deformation, or load changes, the spring on the lower wheel, which loses some tension, will contract, causing the lower wheel to descend. This, in turn, drives the upper wheel to rise through the transmission of rack two, gear, and rack one, thus re-tightening the chain body. This achieves adaptive adjustment of the chain body tension, improving the stability and reliability of the chain conveyor. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mounting frame, upper wheel, and lower wheel structure in this utility model; Figure 3 This is a schematic diagram of the mounting bracket structure in this utility model; Figure 4 This is a schematic diagram of the upper wheel structure in this utility model; Figure 5 This is a schematic diagram of the lower wheel structure in this utility model.

[0013] In the diagram: 100, conveyor body; 110, frame; 120, drive sprocket; 130, driven sprocket; 140, chain body; 200, mounting bracket; 210, connecting shaft; 220, gear; 230, rectangular groove; 240, strip groove; 250, slide rail; 260, round hole; 270, fixed rod; 300, upper wheel; 310, long column; 320, rack one; 330, strip rod; 340, limit block; 400, lower wheel; 410, short column; 420, rack two; 430, spring; 440, slider; 450, connecting rod; 460, rope; 470, counterweight. Detailed Implementation

[0014] 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.

[0015] Example Please see Figure 1-5 In this embodiment of the present invention, an adaptive adjustment mechanism for a chain conveyor includes a conveyor body 100, a mounting frame 200, an upper wheel 300, and a lower wheel 400. The conveyor body 100 includes a frame 110, on which a driving sprocket 120 and a driven sprocket 130 are mounted. A chain body 140 is connected between the driving sprocket 120 and the driven sprocket 130. The mounting frame 200 is fixedly connected to the frame 110. Two connecting shafts 210 are symmetrically rotatably connected inside the mounting frame 200. The outer walls of the two connecting shafts 210 are sleeved with... A gear 220 is fixedly mounted. A rectangular groove 230 is formed through the inner bottom surface of the mounting frame 200, positioned between two gears 220. Strip grooves 240 are formed on the front and rear inner sidewalls of the mounting frame 200 at positions corresponding to the rectangular groove 230. Two fixing rods 270 are fixedly connected to the outer wall of the mounting frame 200, each with a through hole. The two fixing rods 270 are bolted to the frame 110. The upper wheel 300 can move up and down to adjust the tension of the chain body 140. A frame bottom of the upper wheel 300 is fixedly connected to... A long column 310 is inserted into a rectangular slot 230. Racks 320 are fixedly connected to both the left and right side walls of the long column 310. Strip rods 330 are fixedly connected to both the front and rear side walls of the long column 310. The two racks 320 mesh with two gears 220 respectively. Two lower wheels 400 are provided, symmetrically arranged around the upper wheel 300. Short columns 410 are fixedly connected to the bottom of the frames of both lower wheels 400. Racks 420 are fixedly connected to the opposite side walls of the two short columns 410. The two racks 420 mesh with two gears 220 respectively. 0 meshing transmission, gear 220 meshes between rack 320 and rack 420 to realize the reverse motion transmission between upper wheel 300 and lower wheel 400. Springs 430 are fixedly connected between the bottom surface of the two short columns 410 and the inner bottom surface of the mounting bracket 200. The chain body 140 passes under one of the lower wheels 400, goes over the top of the upper wheel 300, and then passes under the other lower wheel 400. The upper wheel 300 and lower wheel 400 adopt a pulley structure to support the chain body 140, without directly meshing with the chain body 140 to transmit power.

[0016] Specifically, the mounting bracket 200 is installed on the frame 110, ensuring that the chain body 140 passes under one of the lower pulleys 400, over the upper pulley 300, and then under the other lower pulley 400. After the chain body 140 is installed, the two lower pulleys 400 are stretched, the spring 430 is stretched to its maximum value, and the chain body 140 is in a taut state. When the chain body 140 becomes loose due to wear, deformation, or load changes, its tensile force on the lower pulleys 400 decreases, the spring 430 at the bottom of the lower pulley 400 contracts, causing the short column 410 to descend. The descending short column 410 drives the rack 2 420 to move downward and mesh with the gear 220 for transmission. The rotating gear 220 meshes with the rack 1 320, causing the rack 1 320 to move upward. The upward movement of the rack 1 320 drives the upper pulley 300 to rise, thereby making the chain body 140 taut again.

[0017] like Figure 3 and 5 As shown, in this embodiment, the mounting bracket 200 has two inner sidewalls with grooves 250 on both sides, and two round holes 260 on the bottom surface of the mounting bracket 200. The two short columns 410 are fixedly connected to the sidewalls of the two short columns 410 that are far apart. The two sliders 440 are slidably connected to the two grooves 250 respectively, which improves the stability of the short columns 410 moving up and down. A connecting rod 450 is fixedly connected between the two short columns 410, so that the two lower wheels 400 keep moving synchronously. The bottom surfaces of the two short columns 410 are connected to ropes 460. The bottom ends of the two ropes 460 pass through the two round holes 260 respectively and are fixedly connected to counterweights 470 respectively.

[0018] In this embodiment, the counterweight 470 has a certain weight. When the chain body 140 is relaxed, under the contraction force of the spring 430 and the gravity of the counterweight 470, the short column 410 is driven to move downward smoothly, which helps to accelerate the contraction speed of the spring 430.

[0019] like Figure 4 As shown, in this embodiment, the top and bottom ends of the two bar rods 330 are fixedly connected to limit blocks 340.

[0020] In practice, the strip groove 240 penetrates the top and bottom surfaces of the mounting frame 200, and the strip rod 330 slides in conjunction with it, allowing the long column 310 to move up and down relatively stably. Limiting blocks 340 are fixedly connected to the top and bottom ends of the strip rod 330, and the limiting blocks 340 play a limiting role, so that the movement range of the long column 310 is controlled within the length range of the strip rod 330, thereby ensuring that the long column 310 will not deviate from the preset trajectory during movement, preventing excessive movement and ensuring the stability of the mechanism.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adaptive adjustment mechanism for a chain conveyor, comprising a conveyor body (100), the conveyor body (100) including a frame (110), wherein a drive sprocket (120), a driven sprocket (130), and a chain body (140) are mounted on the inner side wall of the frame (110), characterized in that, include: The mounting bracket (200) is fixedly connected to the frame (110). The mounting bracket (200) has two connecting shafts (210) rotatably connected inside. Gears (220) are sleeved and fixed on the outer walls of the two connecting shafts (210). A rectangular groove (230) is opened through the inner bottom surface of the mounting bracket (200). A strip groove (240) is opened on the front and rear inner side walls of the mounting bracket (200). The upper wheel (300) can move up and down to adjust the tension of the chain body (140). A long column (310) that is inserted into a rectangular groove (230) is fixedly connected to its bottom. A rack (320) is fixedly connected to the left and right side walls of the long column (310). A strip rod (330) is fixedly connected to the front and rear side walls of the long column (310). The two racks (320) mesh with two gears (220) respectively. There are two lower wheels (400). The bottom of each lower wheel (400) is fixedly connected to a short column (410). The opposite sidewalls of the two short columns (410) are fixedly connected to racks (420). The two racks (420) mesh with two gears (220) respectively. The bottom surface of each short column (410) is fixedly connected to the inner bottom surface of the mounting bracket (200) and a spring (430).

2. The adaptive adjustment mechanism of the chain conveyor according to claim 1, characterized in that, The outer wall of the mounting bracket (200) is fixedly connected to two fixing rods (270), and the two fixing rods (270) are fixedly connected to the frame (110).

3. The adaptive adjustment mechanism of the chain conveyor according to claim 1, characterized in that, The mounting bracket (200) has two inner sidewalls with grooves (250) on both sides, and two round holes (260) on the bottom surface of the mounting bracket (200).

4. The adaptive adjustment mechanism of the chain conveyor according to claim 1, characterized in that, The two short columns (410) are fixedly connected to sliders (440) on their opposite sidewalls, and the two sliders (440) are slidably connected to the two slide grooves (250) respectively.

5. The adaptive adjustment mechanism for the chain conveyor according to claim 1, characterized in that, A connecting rod (450) is fixedly connected between the two short columns (410).

6. The adaptive adjustment mechanism for the chain conveyor according to any one of claims 1, 4, and 5, characterized in that, The bottom surfaces of the two short columns (410) are each connected to a counterweight (470) by a rope (460).

7. The adaptive adjustment mechanism of the chain conveyor according to claim 1, characterized in that, Limiting blocks (340) are fixedly connected to the top and bottom ends of the two strip rods (330).

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