Electric rice tray arranging device conveying belt adjusting mechanism
By designing a combined structure of lead screw, nut and pressure roller in the electric rice tray-positioning device, the slippage problem caused by belt loosening was solved, and the stability of the belt pulley group and the efficient transportation of the seedling trays were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG HAORONG TECH DEV CO LTD
- Filing Date
- 2025-09-07
- Publication Date
- 2026-07-21
AI Technical Summary
The belt of the electric rice tray conveyor is prone to loosening during long-term rice tray transport, causing slippage and affecting the efficiency of tray transport.
An adjustment mechanism for the conveyor belt of an electric rice tray-planting device was designed. The position of the pulley group is adjusted by the cooperation of the screw and nut. The stability and tension of the pulley group are ensured by the guidance of the slider and the groove, combined with the squeezing of the pressure roller.
It effectively reduces the probability of belt loosening in the pulley assembly, improves the stability and efficiency of seedling tray transportation, and avoids the shaking and slippage of the pulley assembly.
Smart Images

Figure CN224529739U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice tray arranging machine technology, and in particular to an adjustment mechanism for the conveyor belt of an electric rice tray arranging device. Background Technology
[0002] Rice is a cereal crop of the genus Oryza. Rice originated in China and India. Seven thousand years ago, the ancestors in the Yangtze River basin of China cultivated rice. In order to increase the yield and seedling rate of rice, seedling trays were often used to plant rice in the trays. Then, an electric rice tray placement machine was used to neatly place the trays into the paddy field.
[0003] When an electric rice tray-positioning machine is working, a transmission wheel drives a belt to move the seedling trays, which are placed on the belt surfaces on the left and right sides. The belt moves to transport the seedling trays. Due to the flexibility of the belt, it is prone to loosening under the weight of the seedling trays during prolonged transport, leading to belt slippage and affecting the transport efficiency. Therefore, a conveyor belt adjustment mechanism for electric rice tray-positioning equipment is needed to solve this problem. Utility Model Content
[0004] The purpose of this invention is to solve the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An adjustment mechanism for a conveyor belt of an electric rice tray-stacking device includes a tray-stacking machine beam frame. Movable components are movably mounted on the surface of the tray-stacking machine beam frame. Each movable component includes a plate frame, and a rotating shaft is rotatably mounted on the inner wall of the plate frame. A pulley assembly is provided on the surface of the rotating shaft. An adjustment component is provided on the right side of the front of the plate frame. The adjustment component includes a connecting plate that is fixedly connected to the side of the plate frame, and a lead screw is connected to the front of the connecting plate. The lead screw passes through a through hole inside the frame. The left side of the frame is fixedly connected to the side of the tray-stacking machine beam frame.
[0007] Preferably, the lead screw is threaded with two nuts A, and the inner end faces of the two nuts A abut against the frame surface. By rotating the two nuts A, the nuts A can abut against the inner wall of the frame, thereby fixing the position of the lead screw.
[0008] Preferably, a side plate is connected to the left side of the inner wall of the plate frame, and the bottom horizontal plate end surface of the side plate has a mounting hole. The mounting hole end of the side plate can coincide with the mounting hole end of the horizontal plate of the plate frame, which facilitates the reinforcement of the side plate by bolting through it.
[0009] Preferably, the inner wall of the vertical end of the side plate is connected to a slider, and the slider is slidably installed inside the beam frame of the swivel plate machine through a slide groove. The slide groove of the beam frame of the swivel plate machine can guide the slider, thereby ensuring the stability of the pulley assembly.
[0010] Preferably, the slider and the side plate have through holes, and the through holes are connected to the rotating shaft through bearing seats. The through hole bearing seat design of the slider and the side plate can ensure the smoothness of the rotating shaft during rotation.
[0011] Preferably, a pressure roller is installed on the inner wall end face of the plate frame. The pressure roller includes a side hanging plate. A threaded shaft frame is connected to the inner wall side of the side hanging plate. The threaded shaft frame passes through the right side of the wheel frame through a through hole. A pressure roller is movably installed on the left side of the wheel frame. The left side of the pressure roller contacts the side of the pulley assembly. A nut B is threaded on the end surface of the threaded shaft frame. By rotating and moving the nut B on the threaded end of the threaded shaft frame, the nut B can be driven to apply pressure and push the wheel frame.
[0012] Preferably, the threaded shaft bracket has a U-shaped cross-section. The inner wall of the vertical plate end of the threaded shaft bracket is connected to a support spring, and the right side of the support spring is connected and fixed to the inner wall of the wheel bracket. The elastic force of the wheel bracket supports the wheel bracket, so that the nut B is continuously compressed on one side during the threaded connection with the threaded shaft bracket, reducing the probability of the nut B stripping after installation.
[0013] This utility model has at least the following beneficial effects:
[0014] 1. By setting up an adjustment component, the pulley assembly can be easily adjusted. Compared with the traditional structure, this device moves the lead screw in the through hole of the frame, which drives the plate frame to move. The movement of the plate frame can synchronously drive the pulley assembly to move, thereby pulling the pulley assembly end and then driving the belt end of the pulley assembly to tighten. After completion, it is fixed by adjusting the two nuts A. Then, it can quickly tighten the belt end of the pulley assembly if it becomes loose, reducing the chance of the belt end of the pulley assembly slipping and ensuring the normal transportation of the seedling tray.
[0015] 2. By setting up a pressure roller, the belt end of the pulley assembly is clamped. Compared with the traditional structural design, this device fixes the side hanging plate to the inner wall of the plate frame with bolts. The wheel frame is pushed by the rotation and movement of the nut B on the surface of the threaded shaft frame. This allows the wheel frame to push the pressure roller to clamp against the belt end surface of the pulley assembly, increasing the friction between the belt end of the pulley assembly and the pulley assembly, and ensuring the stable transport of the seedling tray by the belt end of the pulley assembly. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the external structure of the conveyor belt adjustment mechanism of an electric rice tray-arranging device proposed in this utility model.
[0018] Figure 2 This is a three-dimensional disassembly diagram of the moving parts in the conveyor belt adjustment mechanism of an electric rice tray-arranging device proposed in this utility model.
[0019] Figure 3 This is a three-dimensional structural diagram of the adjusting component in the conveyor belt adjustment mechanism of an electric rice tray-arranging device proposed in this utility model.
[0020] Figure 4 This is a three-dimensional structural diagram of the pressure roller component in the conveyor belt adjustment mechanism of an electric rice tray-arranging device proposed in this utility model.
[0021] In the diagram: 1. Ballast beam; 2. Moving parts; 21. Slider; 22. Rotating shaft; 23. Pulley assembly; 24. Plate frame; 25. Side connecting plate; 3. Adjusting parts; 31. Connecting plate; 32. Lead screw; 33. Frame; 34. Nut A; 4. Pressure roller; 41. Side hanging plate; 42. Threaded shaft frame; 43. Wheel frame; 44. Support spring; 45. Pressure roller; 46. Nut B. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0023] Reference Figure 1-4 An electric rice tray-arranging equipment conveyor belt adjustment mechanism includes a tray-arranging machine beam frame 1. A movable component 2 is movably installed on the surface of the tray-arranging machine beam frame 1. The movable component 2 includes a plate frame 24, and a rotating shaft 22 is rotatably installed on the inner wall of the plate frame 24. A pulley set 23 is provided on the surface of the rotating shaft 22. An adjustment component 3 is provided on the right side of the front of the plate frame 24. The adjustment component 3 includes a connecting plate 31 that is connected and fixed to the side of the plate frame 24. A lead screw 32 is connected to the front of the connecting plate 31. The lead screw 32 passes through the inside of the frame 33 through a through hole. The left side of the frame 33 is connected and fixed to the side of the tray-arranging machine beam frame 1.
[0024] Two nuts A34 are threaded on the surface of the lead screw 32, and the inner end faces of the two nuts A34 abut against the surface of the frame 33.
[0025] A side plate 25 is connected to the left side of the inner wall of the plate frame 24, and the bottom horizontal plate end surface of the side plate 25 has a mounting hole.
[0026] A slider 21 is connected to the inner wall of the vertical end of the side plate 25, and the slider 21 is slidably installed inside the beam frame 1 of the swivel plate machine through a slide groove.
[0027] The slider 21 and the side plate 25 have through holes, and the through holes are connected to the rotating shaft 22 through the bearing seat.
[0028] A pressure roller 4 is installed on the inner wall end face of the plate frame 24. The pressure roller 4 includes a side hanging plate 41. A threaded shaft bracket 42 is connected to the inner wall side of the side hanging plate 41. The threaded shaft bracket 42 passes through the right side of the wheel frame 43 through a through hole. A pressure roller 45 is movably installed on the left side of the wheel frame 43. The left side of the pressure roller 45 contacts the side of the pulley group 23. A nut B46 is threaded on the end surface of the threaded shaft bracket 42.
[0029] The threaded shaft bracket 42 has a U-shaped cross-section. A support spring 44 is connected to the inner wall of the vertical plate end of the threaded shaft bracket 42, and the right side of the support spring 44 is connected and fixed to the inner wall of the wheel bracket 43.
[0030] The position of the plate frame 24 can be changed by moving the lead screw 32 in the through hole of the frame 33. By rotating the two nuts A34 on the left and right, the nuts A34 can be made to abut against the inner wall of the frame 33, thereby fixing the position of the lead screw 32 and ensuring the stability of the plate frame 24 after adjustment. After the position of the pulley group 23 is adjusted, the mounting hole end of the side plate 25 can coincide with the mounting hole end of the horizontal plate of the swivel plate beam 1, which makes it convenient to reinforce the side plate 25 by passing through bolts.
[0031] The slide groove of the swivel plate machine beam frame 1 can guide the slider 21, thereby ensuring the stability of the pulley assembly 23. By sliding the slider 21, the position of the pulley assembly 23 can be easily adjusted, and the tension of the belt end of the pulley assembly 23 can be changed. The through hole bearing seat design of the slider 21 and the side plate 25 can ensure the smoothness of the rotation of the shaft 22 and prevent the pulley assembly 23 from shaking during rotation.
[0032] By rotating and moving the nut B46 on the threaded shaft end of the threaded shaft bracket 42, the nut B46 can be driven to apply pressure and push the wheel bracket 43, controlling the squeezing force of the pressure wheel 45 on the belt end of the pulley assembly 23. The elasticity of the wheel bracket 43 supports the wheel bracket 43, so that the nut B46 is continuously compressed on one side during the threaded connection with the threaded shaft bracket 42, reducing the chance of the nut B46 stripping after installation. The double threaded shaft design of the threaded shaft bracket 42 can ensure the stability of the wheel bracket 43 during movement.
[0033] Working principle: According to the appendix Figure 2 With appendix Figure 3As shown, when the pulley end of the pulley assembly 23 is loose, the two nuts A34 can be loosened, allowing the lead screw 32 to move in the through hole of the frame 33. The movement of the lead screw 32 can drive the plate frame 24 to move. The plate frame 24 is connected to the side plate 25 by bolts. When the side plate 25 moves, it can drive the slider 21 to move in the movable groove of the swivel plate beam frame 1, thereby changing the position of the pulley assembly 23. The movement of the pulley assembly 23 can cause the pulley end to shift and pull the belt end. After the belt end is tightened, by rotating the two nuts A34, the two nuts A34 can be abutted and fastened to the surface of the horizontal plate end of the frame 33, thereby fixing the position of the plate frame 24.
[0034] Secondly, according to the appendix Figure 4 As shown, by twisting the nut B46, the internal thread of the nut B46 can engage with the external thread of the threaded shaft bracket 42, allowing the nut B46 to move on the surface of the threaded shaft bracket 42. The movement of the nut B46 pushes the wheel bracket 43, and the movement of the wheel bracket 43 can drive the pressure wheel 45 to move, thereby adjusting the squeezing force of the pressure wheel 45 on the belt end of the pulley assembly 23.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A conveyor belt adjustment mechanism for an electric rice tray-stacking device, comprising a tray-stacking machine beam frame (1), characterized in that, The surface of the plate-slab machine beam frame (1) is movably mounted with a movable part (2). The movable part (2) includes a plate frame (24), and a rotating shaft (22) is rotatably mounted on the inner wall of the plate frame (24). A pulley group (23) is provided on the surface of the rotating shaft (22). An adjusting part (3) is provided on the right side of the front of the plate frame (24). The adjusting part (3) includes a connecting plate (31) that is fixed to the side of the plate frame (24). A lead screw (32) is connected to the front of the connecting plate (31). The lead screw (32) passes through the inside of the frame (33) through a through hole. The left side of the frame (33) is fixed to the side of the plate-slab machine beam frame (1).
2. The conveyor belt adjustment mechanism for an electric rice tray-positioning device according to claim 1, characterized in that, The lead screw (32) is threaded with two nuts A (34), and the inner end faces of the two nuts A (34) abut against the surface of the frame (33).
3. The conveyor belt adjustment mechanism for an electric rice tray-positioning device according to claim 1, characterized in that, The inner wall of the plate frame (24) is connected to a side plate (25), and the bottom horizontal plate end surface of the side plate (25) is provided with an installation hole.
4. The conveyor belt adjustment mechanism for an electric rice tray-positioning device according to claim 3, characterized in that, The inner wall of the vertical end of the side plate (25) is connected to a slider (21), and the slider (21) is slidably installed inside the beam frame (1) of the swivel plate machine through a sliding groove.
5. The conveyor belt adjustment mechanism for an electric rice tray-positioning device according to claim 4, characterized in that, The slider (21) and the side plate (25) have through holes, and the through holes are connected to the rotating shaft (22) through the bearing seat.
6. The conveyor belt adjustment mechanism for an electric rice tray-positioning device according to claim 3, characterized in that, The inner wall end face of the plate frame (24) is equipped with a pressure roller component (4). The pressure roller component (4) includes a side hanging plate (41). The inner wall side of the side hanging plate (41) is connected to a threaded shaft frame (42). The threaded shaft frame (42) passes through the right side of the wheel frame (43) through a through hole. A pressure roller (45) is movably installed on the left side of the wheel frame (43). The left side of the pressure roller (45) is in contact with the side of the pulley group (23). The threaded shaft frame (42) has a nut B (46) threaded on its shaft end surface.
7. The conveyor belt adjustment mechanism for an electric rice tray-positioning device according to claim 6, characterized in that, The threaded shaft bracket (42) has a U-shaped cross-section. A support spring (44) is connected to the inner wall of the vertical plate end of the threaded shaft bracket (42), and the right side of the support spring (44) is connected and fixed to the inner wall of the wheel frame (43).