Belt tension adjustment mechanism for short belt conveyor

Abstract

The utility model discloses a kind of belt tension adjustment mechanism for short belt conveyor, the adjusting support of this mechanism is transversely arranged in short belt conveyor rack, first through hole is respectively arranged in adjusting support two ends, adjusting screw bottom end is inserted into adjusting support two ends first through hole, adjusting nut and fixed nut are respectively screwed in adjusting screw bottom end and located adjusting support two sides, adjusting screw top end is equipped with second through hole, drum fixing bolt is inserted into the second through hole of adjusting screw top end and is screwed in the axis of adjusting drum, adjusting drum is adjusted height by adjusting screw and leans to the belt bottom surface of short belt conveyor.This mechanism is simple in structure, convenient to adjust, reduce equipment cost, convenient to install and maintain, not only can be used for short belt conveyor also can be used for long belt conveyor's auxiliary adjustment, with strong compatibility.

Description

Technical Field

[0001] This utility model relates to the field of logistics conveying equipment technology, and in particular to a belt tension adjustment mechanism for short belt conveyors. Background Technology

[0002] Belt conveyors are common conveying equipment in logistics systems. Short belt conveyors are more widely used in logistics systems with diverse functions. Among them, belt tensioning and deviation adjustment mechanisms are essential components of belt conveyors. However, due to the belt's elasticity ratio, the shorter the belt, the smaller the adjustment space. Traditional tensioning and adjustment mechanisms are complex and require longer belts, resulting in increased costs and inconvenient installation and maintenance.

[0003] For example, Chinese patent CN103508163A describes a method that uses a guide tube between two fixed seats, with a threaded rod, a hollow push rod, and a positioning sleeve installed inside the guide tube. The threaded rod drives the push rod to extend and retract, thus achieving belt tensioning. While this structure can achieve tensioning over a short distance, it requires additional guide tubes and push rods, resulting in a large number of components, higher manufacturing and maintenance costs, and the fit between the push rod and the threaded rod is highly sensitive to environmental conditions, easily affected by dust and thus accelerated wear.

[0004] Another common tensioning device, CN203359408U, uses a tensioning trolley, counterweight platform, and winch in conjunction with a counterweight, fixed pulley, and movable pulley. It achieves automatic tensioning through steel cable winding and can adapt to a wide range of belt length changes. However, the overall equipment is large in size, complex in structure, and has a long installation and commissioning cycle, making it unsuitable for short belt conveyors with limited installation space.

[0005] Another mechanism, CN205371494U, is based on tensioner adjustment. It utilizes a bracket with three mounting feet, a movable shaft bolt, and an adjusting bolt. A snap ring locking mechanism prevents the adjusting bolt from loosening, allowing for fine-tuning of the tensioner position. This solution simplifies the power source requirements, but requires a large space at the bottom of the bracket to accommodate the mounting feet. Furthermore, the multi-foot structure increases the equipment height when placed under a short belt conveyor, making a truly compact design difficult to achieve.

[0006] In summary, existing tension adjustment devices for short belt conveyors generally suffer from drawbacks such as complex structure, numerous components, large space occupation, and difficulty in maintenance and replacement. Therefore, there is an urgent need for a tension adjustment mechanism that is simple in structure, has standardized components, is easy to install and maintain, has strong compatibility, and is suitable for short belt conveyors. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to provide a belt tension adjustment mechanism for short belt conveyors. This mechanism has a simple structure, is easy to adjust, reduces equipment costs, and is easy to install and maintain. It can be used not only for short belt conveyors but also for auxiliary adjustment of long belt conveyors, and has strong compatibility.

[0008] To solve the above-mentioned technical problems, the present invention provides a belt tension adjustment mechanism for a short belt conveyor, comprising a short belt conveyor frame, an adjustment bracket, an adjustment screw, an adjustment nut, a fixing nut, an adjustment roller, and a roller fixing bolt. The adjustment bracket is horizontally disposed on the short belt conveyor frame, and each end of the adjustment bracket has a first through hole. The bottom end of the adjustment screw passes through the first through holes at both ends of the adjustment bracket. The adjustment nut and the fixing nut are respectively screwed onto the bottom end of the adjustment screw and located on both sides of the adjustment bracket. The top end of the adjustment screw has a second through hole, and the roller fixing bolt passes through the second through hole at the top end of the adjustment screw and is screwed onto the axis of the adjustment roller. The adjustment roller is adjusted in height by the adjustment screw and rests against the bottom surface of the belt of the short belt conveyor.

[0009] Furthermore, the adjusting bracket is a crossbeam and is welded to the bottom surface of the short belt conveyor frame.

[0010] Because this utility model's belt tension adjustment mechanism for short belt conveyors adopts the above-mentioned technical solution, namely, the adjustment bracket of this mechanism is horizontally arranged on the short belt conveyor frame, and each end of the adjustment bracket has a first through hole. The bottom end of the adjusting screw passes through the first through holes at both ends of the adjustment bracket. The adjusting nut and the fixing nut are respectively screwed onto the bottom end of the adjusting screw and located on both sides of the adjustment bracket. The top end of the adjusting screw has a second through hole, and the roller fixing bolt passes through the second through hole at the top end of the adjusting screw and is screwed onto the shaft of the adjusting roller. The adjusting roller is adjusted in height by the adjusting screw and rests against the bottom surface of the belt of the short belt conveyor. This mechanism has a simple structure, is easy to adjust, reduces equipment costs, and is easy to install and maintain. It can be used not only for short belt conveyors but also for auxiliary adjustment of long belt conveyors, and has strong compatibility. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0012] Figure 1 This is a schematic diagram of the belt tension adjustment mechanism for a short belt conveyor according to the present invention;

[0013] Figure 2 for Figure 1 AA view. Detailed Implementation

[0014] Implementation, for example Figure 1 and Figure 2As shown, the belt tension adjustment mechanism for a short belt conveyor of this utility model includes a short belt conveyor frame 1, an adjustment bracket 2, an adjustment screw 3, an adjustment nut 4, a fixing nut 5, an adjustment roller 6, and a roller fixing bolt 7. The adjustment bracket 2 is horizontally arranged on the short belt conveyor frame 1. The adjustment bracket 2 has first through holes at both ends. The bottom end of the adjustment screw 3 passes through the first through holes at both ends of the adjustment bracket 2. The adjustment nut 4 and the fixing nut 5 are respectively screwed onto the bottom end of the adjustment screw 3 and located on both sides of the adjustment bracket 2. The top end of the adjustment screw 3 has a second through hole. The roller fixing bolt 7 passes through the second through hole at the top end of the adjustment screw 3 and is screwed onto the axis of the adjustment roller 6. The adjustment roller 6 is adjusted in height by the adjustment screw 3 and rests against the bottom surface of the belt 8 of the short belt conveyor.

[0015] Preferably, the adjusting bracket 2 is a crossbeam and is welded to the bottom surface of the short belt conveyor frame 1.

[0016] The adjusting nut 4 and fixing nut 5 of this mechanism are used to adjust and fix the height of the adjusting screw 3. The adjusting screw 3 is connected to the adjusting roller 6 via the roller fixing bolt 7. By adjusting the height of the adjusting screw 3, the force of the adjusting roller 6 against the bottom surface of the belt 8 is adjusted. During belt adjustment, the adjusting screws at both ends of the adjusting bracket are rotated to move the adjusting roller upwards to contact the belt and apply a certain pressure, so that the belt reaches the tension required for normal operation. When the belt deviates to one side during operation, the adjusting nut is rotated to finely adjust the height of the two sides of the adjusting roller, so that the two ends of the adjusting roller apply different pressures to the belt. The pressure difference balances the overall force of the belt, thereby adjusting the belt to the middle position of the belt conveyor.

[0017] This mechanism features a simple structure, most parts are standard components, low cost, and convenient use and maintenance. It can be used not only for belt adjustment of short belt conveyors but also for auxiliary adjustment of long belt conveyors, making it highly compatible.

Claims

1. A belt tension adjustment mechanism for a short belt conveyor, comprising a short belt conveyor frame, characterized in that: It also includes an adjusting bracket, an adjusting screw, an adjusting nut, a fixing nut, an adjusting roller, and a roller fixing bolt. The adjusting bracket is horizontally arranged on the short belt conveyor frame. The adjusting bracket has a first through hole at each end. The bottom end of the adjusting screw passes through the first through holes at both ends of the adjusting bracket. The adjusting nut and the fixing nut are respectively screwed onto the bottom end of the adjusting screw and located on both sides of the adjusting bracket. The top end of the adjusting screw has a second through hole. The roller fixing bolt passes through the second through hole at the top end of the adjusting screw and is screwed onto the axis of the adjusting roller. The adjusting roller is adjusted in height by the adjusting screw and rests against the bottom surface of the belt of the short belt conveyor.

2. The belt tension adjustment mechanism for a short belt conveyor according to claim 1, characterized in that: The adjusting bracket is a crossbeam and is welded to the bottom surface of the short belt conveyor frame.

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