Automatic leveling and deviation preventing carrier roller frame of grain conveying belt

Abstract

The utility model discloses an automatic leveling and deviation-preventing carrier roller frame for a grain conveying belt, which comprises a T-shaped back plate, a main supporting plate, an auxiliary supporting plate and a screw rod pushing structure, wherein the main supporting plate and the auxiliary supporting plate are hinged to the left and right positions of the surface of the T-shaped back plate, and the screw rod pushing structure is arranged on the outer wall of the T-shaped back plate below the main supporting plate and the auxiliary supporting plate. And one side of the surface of the main supporting plate and one side of the surface of the auxiliary supporting plate are each provided with an open groove, and the moving end of the lead screw pushing structure is provided with a double-wheel sliding and pushing piece embedded into the two open grooves. Synchronous movement of the main supporting plate and the auxiliary supporting plate is guaranteed in a mechanical connection mode, deviation and inconsistency possibly caused by traditional single-point adjustment are avoided, adjustment of the left supporting roller and the right supporting roller is more coordinated, it is guaranteed that a conveying belt is supported and guided more evenly in the running process, and unstable phenomena such as off tracking and deviation are reduced.

Description

Technical Field

[0001] This utility model relates to the field of idler frame technology, specifically to an automatic leveling and anti-deviation idler frame for grain conveyor belts. Background Technology

[0002] Anti-deviation idler frames in grain conveying systems primarily ensure that the conveyor belt remains on a predetermined track during operation, preventing equipment damage and production interruptions caused by deviation. Their core functions include maintaining conveyor belt balance, reducing wear and malfunctions due to deviation, thereby extending equipment lifespan and improving overall conveying efficiency. The idler frame consists of idlers, supports, guiding devices, adjusting mechanisms, and fixing devices, with a structural design emphasizing a combination of strength and adjustment functionality. Idler rollers, as key supporting and guiding components, are typically made of wear-resistant materials and, together with guiding devices such as guide blocks or wheels, form a mechanical guiding system. When the conveyor belt deviates from the centerline, the guiding device uses friction to guide the deviated conveyor belt back to the correct position.

[0003] The high-degree-of-freedom omnidirectional belt conveyor alignment device disclosed in authorization announcement number CN212291700U includes an alignment base fixedly connected to the frame of the belt conveyor. An alignment roller frame is provided above the alignment base, and an alignment idler group is provided on the alignment roller frame. An alignment connecting shaft is installed horizontally at the bottom middle of the alignment roller frame. A universal bearing corresponding to the alignment connecting shaft is installed on the alignment base. An anti-tipping device for the roller frame is provided between the alignment connecting shaft and the alignment base. Inclined belt-blocking force transmission devices are provided at both ends of the alignment idler group on the alignment roller frame. After the conveyor belt deviates, the belt-blocking force transmission devices are pressed against the belt-blocking force transmission devices, triggering automatic alignment action. The alignment sensitivity is high, and the conveyor belt deviation problem is significantly improved. However, when the above technology is applied to adjust the contact angle between the left and right support rollers and the conveyor belt, the left and right support rollers are controlled by independent adjustment mechanisms and lack linkage or synchronization mechanisms. Therefore, the adjustment of the left and right support rollers is not synchronized, and it is difficult to ensure that the angle adjustment of the two is consistent, which easily leads to adjustment deviation. Utility Model Content

[0004] The purpose of this invention is to provide an automatic leveling and anti-deviation idler frame for grain conveyor belts. A screw-driven pusher mechanism moves a double-wheel sliding pusher downwards. Since the double-wheel sliding pusher is located in the opening slots of the main support plate and the secondary support plate, the main support plate and the secondary support plate will simultaneously deflect during the downward movement of the double-wheel sliding pusher. Consequently, the support rollers on the main support plate and the secondary support plate can be adjusted synchronously, thereby changing the contact pressure between the left and right support rollers and the conveyor belt, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic leveling and anti-deviation idler frame for grain conveyor belts, comprising a T-shaped back plate, a main support plate and a secondary support plate hinged at the left and right positions of the T-shaped back plate surface, and a screw pushing structure provided on the outer wall of the T-shaped back plate below the main support plate and the secondary support plate. One side of the surface of the main support plate and the secondary support plate is provided with an opening groove. The moving end of the screw pushing structure is equipped with a double-wheel sliding pusher embedded in the two opening grooves. The top of the main support plate and the secondary support plate are integrally formed with a U-shaped roller frame, and a support roller is rotatably installed inside the U-shaped roller frame.

[0006] Preferably, the left and right outer walls of the T-shaped back panel are integrally formed with wing plates, and one end of the wing plate is provided with two symmetrical through holes. The T-shaped back panel is made of alloy steel.

[0007] Preferably, hinge shafts are rotatably mounted on both sides of the T-shaped back plate surface, and the double-wheel sliding pusher and the secondary support plate are fixed on the hinge shafts.

[0008] Preferably, the lead screw pushing structure includes a right-angle seat fixed to one end of the surface of the T-shaped back plate, a threaded shaft threadedly mounted on the top of the right-angle seat, and a connecting plate rotatably mounted on the top of the threaded shaft.

[0009] Preferably, the double-wheel sliding component includes a rectangular slide fixed to the top of the connecting plate and steel wheels rotatably mounted on the front and rear outer walls of the rectangular slide, the steel wheels being located in the opening groove.

[0010] Preferably, a herringbone sleeve is fixed to one end of the surface of the T-shaped back plate, and the rectangular slide block is slidably installed in the herringbone sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The automatic leveling and anti-deviation idler frame for grain conveyor belts is equipped with a screw pushing structure, a double wheel sliding pusher, a main support plate, a secondary support plate, an open groove, a U-shaped roller frame, and support rollers that cooperate with each other. The screw pushing structure drives the double wheel sliding pusher to move downward. Since the double wheel sliding pusher is located in the open groove of the main support plate and the secondary support plate, the main support plate and the secondary support plate will deflect synchronously during the downward movement of the double wheel sliding pusher. Then, the support rollers on the main support plate and the secondary support plate can be adjusted synchronously, thereby changing the contact pressure between the left and right support rollers and the conveyor belt at the same time.

[0012] The dual-wheel sliding pusher is located in the opening slots of the main and auxiliary support plates. As it moves downward, the main and auxiliary support plates also deflect synchronously. The mechanical connection ensures the synchronous movement of the main and auxiliary support plates, avoiding the deviations and inconsistencies that may be caused by traditional single-point adjustment. This makes the adjustment of the support rollers more coordinated, ensuring that the support and guidance of the conveyor belt are more uniform during operation, reducing instability such as deviation and offset. Secondly, as the main and auxiliary support plates deflect, the position and angle of the support rollers will also be adjusted accordingly, thereby changing the contact pressure between the support rollers and the conveyor belt. Especially when the load on the conveyor belt changes or there is an off-center load, the contact pressure between the support rollers and the conveyor belt can be adjusted to ensure the smooth operation of the conveyor belt and reduce belt surface damage or deviation caused by uneven pressure. Finally, the operator only needs to operate the screw pushing structure to achieve the synchronous movement of the main and auxiliary support plates, without having to adjust multiple support rollers one by one, which greatly simplifies the adjustment process and improves the accuracy of support roller adjustment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0017] Figure 5 This is a three-dimensional structural diagram of the lead screw pushing structure of this utility model.

[0018] In the diagram: 1. T-shaped back plate; 101. Wing plate; 102. Through hole; 2. Main support plate; 3. Screw pushing structure; 301. Right-angle seat; 302. Threaded shaft; 303. Connecting plate; 4. Double wheel sliding pusher; 401. Rectangular slide block; 402. Steel wheel; 5. Secondary support plate; 6. Opening slot; 7. U-shaped roller frame; 8. Support roller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] Example 1, by Figures 1 to 3The present invention includes a T-shaped back plate 1, a main support plate 2 and a secondary support plate 5 hingedly installed at the left and right positions of the surface of the T-shaped back plate 1, and a screw pushing structure 3 provided on the outer wall of the T-shaped back plate 1 below the main support plate 2 and the secondary support plate 5. One side of the surface of the main support plate 2 and the secondary support plate 5 is provided with an opening groove 6. The moving end of the screw pushing structure 3 is equipped with a double wheel sliding pusher 4 embedded in the two opening grooves 6. The top of the main support plate 2 and the secondary support plate 5 are integrally formed with a U-shaped roller frame 7, and a support roller 8 is rotatably installed inside the U-shaped roller frame 7. The support roller 8 contacts the conveyor belt and distributes the load, thereby reducing the pressure on the conveyor belt and extending the service life of the conveyor belt.

[0021] The T-shaped back plate 1 has integrally formed wing plates 101 on both outer walls, and two symmetrical through holes 102 are provided at one end of the wing plate 101. The T-shaped back plate 1 is made of alloy steel. Hinges are rotatably installed on both sides of the surface of the T-shaped back plate 1. The double wheel sliding pusher 4 and the auxiliary support plate 5 are fixed on the hinges. When the T-shaped back plate 1 is bolted to the grain conveying frame, the wing plates 101 on the left and right outer walls of the T-shaped back plate 1 rest on the upper surface of the grain conveying frame, and the T-shaped back plate 1 and the grain conveying frame are bolted together by bolts and through holes 102, so that the roller frame remains stable during subsequent use.

[0022] Example 2, based on Example 1, is... Figure 4 and Figure 5 The screw jacking structure 3 includes a right-angle seat 301 fixed to one end of the surface of the T-shaped back plate 1, a threaded shaft 302 threadedly mounted on the top of the right-angle seat 301, and a connecting plate 303 rotatably mounted on the top of the threaded shaft 302. When the operator operates the screw jacking structure 3 to control the Z-axis position of the double wheel sliding pusher 4, the threaded shaft 302 is manually rotated, and the threaded shaft 302 drives the connecting plate 303 and the double wheel sliding pusher 4 to rise and fall. Then, the double wheel sliding pusher 4 drives the main support plate 2 and the secondary support plate 5 to deflect synchronously.

[0023] The double-wheel sliding pusher 4 serves as the basis for causing the main support plate 2 and the secondary support plate 5 to deflect, ensuring the stability of the overall structure. The double-wheel sliding pusher 4 includes a rectangular slide block 401 fixed to the top of the connecting plate 303 and steel wheels 402 rotatably mounted on the front and rear outer walls of the rectangular slide block 401. The steel wheels 402 are located in the opening groove 6. One end of the surface of the T-shaped back plate 1 is fixed with a U-shaped sleeve. The rectangular slide block 401 is slidably mounted in the U-shaped sleeve. The threaded shaft 302 drives the connecting plate 303, the rectangular slide block 401, and the steel wheels 402 to move along the Z-axis. Since the steel wheels 402 at the front and rear positions of the rectangular slide block 401 are located in the opening grooves 6 of the main support plate 2 and the secondary support plate 5 respectively, the steel wheels 402 force the main support plate 2 and the secondary support plate 5 to deflect, thereby changing the angle of the support roller 8.

[0024] In this embodiment, the worker first bolts the T-shaped backplate 1 to the grain conveyor frame, with the grain conveyor belt passing over the two support rollers 8. When it is necessary to adjust the contact pressure between the two support rollers 8 and the conveyor belt, the worker operates the screw-pushing structure 3, which drives the double-wheel sliding pusher 4 to move downward. At this time, the downward movement distance of the double-wheel sliding pusher 4 is adjusted according to actual needs to indirectly adjust the deflection angle of the main support plate 2 and the secondary support plate 5. Since the double-wheel sliding pusher 4 is located in the opening slot 6 of the main support plate 2 and the secondary support plate 5, the downward movement of the double-wheel sliding pusher 4 rotates... The adjustment involves the deflection of the main support plate 2 and the secondary support plate 5. During this adjustment process, it is important to observe whether the deflection amplitude of the main support plate 2 and the secondary support plate 5 and the position of the support roller 8 meet expectations. As the main support plate 2 and the secondary support plate 5 deflect, the contact pressure between the two support rollers 8 and the conveyor belt will also change. If the pressure is insufficient or excessive, the contact state between the support roller 8 and the conveyor belt should be readjusted by using the fine-tuning screw push structure 3 to ensure the stability and normal operation of the conveyor belt. After the adjustment is completed, test materials can be placed on the conveyor belt to observe the running status of the conveyor belt and confirm whether the support adjustment has achieved the expected effect.

Claims

1. An automatic leveling and anti-deviation idler frame for grain conveyor belts, characterized in that: The system includes a T-shaped back plate (1), a main support plate (2) and a secondary support plate (5) hinged to the left and right sides of the surface of the T-shaped back plate (1), and a screw pushing structure (3) provided on the outer wall of the T-shaped back plate (1) below the main support plate (2) and the secondary support plate (5). One side of the surface of the main support plate (2) and the secondary support plate (5) is provided with an opening groove (6). The moving end of the screw pushing structure (3) is equipped with a double wheel sliding pusher (4) embedded in the two opening grooves (6). The top of the main support plate (2) and the secondary support plate (5) are integrally formed with a U-shaped roller frame (7), and a support roller (8) is rotatably installed inside the U-shaped roller frame (7).

2. The automatic leveling and anti-deviation idler frame for grain conveyor belts according to claim 1, characterized in that: The T-shaped back panel (1) has wing plates (101) integrally formed on both the left and right outer walls, and two symmetrical through holes (102) are provided at one end of the wing plate (101). The T-shaped back panel (1) is made of alloy steel.

3. The automatic leveling and anti-deviation idler frame for grain conveyor belts according to claim 1, characterized in that: Both sides of the T-shaped back plate (1) are rotatably mounted with hinge shafts, and the double wheel sliding pusher (4) and the auxiliary support plate (5) are fixed on the hinge shafts.

4. The automatic leveling and anti-deviation idler frame for grain conveyor belts according to claim 1, characterized in that: The lead screw pushing structure (3) includes a right-angle seat (301) fixed to one end of the surface of the T-shaped back plate (1), a threaded shaft (302) threadedly mounted on the top of the right-angle seat (301), and a connecting plate (303) rotatably mounted on the top of the threaded shaft (302).

5. The automatic leveling and anti-deviation idler frame for grain conveyor belts according to claim 4, characterized in that: The double-wheel sliding pusher (4) includes a rectangular slide block (401) fixed to the top of the connecting plate (303) and steel wheels (402) rotatably mounted on the front and rear outer walls of the rectangular slide block (401), wherein the steel wheels (402) are located in the opening groove (6).

6. The automatic leveling and anti-deviation idler frame for grain conveyor belts according to claim 5, characterized in that: One end of the surface of the T-shaped back plate (1) is fixed with a spiral sleeve, and the rectangular slide (401) is slidably installed in the spiral sleeve.

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