Internal sliding frame tail screw tensioning device

Abstract

This utility model relates to the technical field of engineering machinery conveying equipment, specifically an internal sliding frame tail screw tensioning device, including an adjustment mechanism and a tail frame. The adjustment mechanism is located slightly forward of the tail roller. The tail frame has a tail roller and a head roller at its two ends, respectively. The tail frame has an inspection hole for adjustment. Adjustment of the adjustment mechanism through the inspection hole causes the tail roller to slide, thereby tensioning the entire conveyor belt. The adjustment mechanism consists of a roller connecting plate, an inner slide rail, a lead screw, an adjusting bolt, and a fixed crossbeam. The adjusting bolt is in a free state, while the rest are welded connections. The adjustment mechanism extends the adjustment position towards the head of the conveyor via two parallel lead screws. This utility model, by extending the double lead screw mechanism towards the head of the conveyor, moves the operating position forward by 0.6m, solving the adjustment difficulties caused by the narrow tail space. Operation via the central inspection port reduces the adjustment time from 20 minutes to 3 minutes.

Description

Technical Field

[0001] This utility model relates to the technical field of engineering machinery conveying equipment, specifically to an internal sliding frame tail screw tensioning device. Background Technology

[0002] Existing conveyor tail tensioning devices are often located at the rear end of the rollers. This increases the distance at the tail end of the conveyor, which is particularly limited on mobile station equipment with high space requirements, where the operating space is ≤0.3m. Furthermore, the space at the tail end of the equipment is difficult to operate. Summary of the Invention

[0003] The purpose of this invention is to provide an internal sliding frame tail screw tensioning device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an internal sliding frame tail screw tensioning device, including an adjustment mechanism and a tail frame. The adjustment mechanism is located slightly forward of the tail roller. The tail frame has a tail roller and a head roller at its two ends, respectively. The tail frame has an inspection hole for adjustment. The adjustment mechanism is adjusted through the inspection hole, which drives the tail roller to slide, thereby tensioning the entire machine belt.

[0005] Preferably, the adjustment mechanism consists of a roller connecting plate, an inner slide rail, a lead screw, an adjusting bolt, and a fixed crossbeam. The adjusting bolt is in a free state, and the rest are welded connections. The adjustment mechanism extends the adjustment position towards the head of the belt conveyor through two parallel lead screws.

[0006] Preferably, the tail frame consists of an inner slide plate, a fixed plate, side beams, and inspection holes, forming a symmetrical inner slide assembly on both sides, and the adjustment mechanism slides freely inside the inner slide assembly.

[0007] Preferably, the adjusting bolts are distributed on both sides of the fixed plate, and the adjusting mechanisms on both sides of the inner slide group can be moved back and forth simultaneously by rotating the adjusting bolts.

[0008] Preferably, the roller connecting plate is connected to the tail roller of the conveyor, slides on the inner slide plate via the inner slide rail, and is driven forward and backward by the action of the adjusting bolt fixing plate.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model extends the double screw mechanism towards the head of the conveyor, moving the operating position forward by 0.6m, thus solving the adjustment difficulties caused by the narrow space at the tail end. At the same time, the operating efficiency is improved, and the adjustment time is shortened from 20 minutes to 3 minutes through the middle inspection port.

[0010] 2. This utility model utilizes a fixed crossbeam to rigidly connect the screws on both sides, forcing the rollers to move in parallel and controlling the synchronous precision. The rigid crossbeam forces the screws on both sides to move synchronously, and the parallelism deviation of the rollers is ≤0.5°.

[0011] 3. The overall structure of this utility model has been adjusted to ensure the parallelism between the tail roller and the head roller, reduce the difficulty of manual operation, and the adjusting bolts can be directly locked to the fixing plate after tensioning, forming an integrated operation-locking structure, which is suitable for compact space conditions of mobile conveying equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention in its installed state; Figure 2 This is a schematic diagram of the adjustment mechanism in this utility model; Figure 3 This is a schematic diagram of the inner slide rail assembly in this utility model; Figure 4 This is a schematic diagram of the cross-section of the present invention after installation.

[0013] In the diagram: 1. Adjustment mechanism; 101. Roller connecting plate; 102. Inner slide rail; 103. Lead screw; 104. Adjusting bolt; 105. Fixed crossbeam; 2. Tail roller; 3. Head roller; 4. Tail frame; 401. Inner slide plate; 402. Fixed plate; 403. Side beam; 404. Inspection hole. 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] Please see Figures 1-4 One embodiment provided by this utility model: The internal sliding frame tail screw tensioning device includes an adjustment mechanism 1 and a tail frame 4. The adjustment mechanism 1 is located slightly in front of the tail roller 2. The tail roller 2 and the head roller 3 are respectively provided at both ends of the tail frame 4. The tail frame 4 is provided with an inspection hole 401 for adjustment. The adjustment mechanism 1 is adjusted through the inspection hole 401, which drives the tail roller 2 to slide, thereby tensioning the belt of the whole machine.

[0016] The adjustment mechanism 1 consists of a roller connecting plate 101, an inner slide rail 102, a lead screw 103, an adjusting bolt 104, and a fixed crossbeam 105. The adjusting bolt 104 is in a free state, while the rest are welded connections. The adjustment mechanism 1 extends the adjustment position toward the head of the belt conveyor through two parallel lead screws 103. The tail frame 4 consists of an inner slide plate 401, a fixed plate 402, a side beam 403, and an inspection hole 404, forming a symmetrical inner slide assembly on both sides. The adjustment mechanism 1 slides freely inside the inner slide assembly. Meanwhile, the adjustment bolts 104 are distributed on both sides of the fixed plate 402. By rotating the adjustment bolts 104, the adjustment mechanisms 1 on both sides of the inner slide assembly move back and forth simultaneously.

[0017] The roller connecting plate 101 is connected to the tail roller 2 of the conveyor. It slides on the inner slide plate 401 via the inner slide rail 102. The adjusting bolt 104 and the fixing plate 402 work together to drive the roller forward and backward, thus tensioning the belt. Left and right adjustments are coordinated. Because the sliding bracket is connected by the fixed crossbeam 105, the parallelism of the head roller 3 and the tail roller 2 is significantly ensured. Mechanically, this ensures coordinated left and right adjustments and prevents belt misalignment. Since the fixing plate 402 and the adjusting bolt 104 simultaneously provide thrust, this mechanism can be adjusted during belt rest time or fine-tuned during belt operation. When the belt tension is appropriate and the belt runs smoothly, tightening the two adjusting bolts 104 locks the belt in place, preventing free sliding.

[0018] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. An inner slide type tail screw tensioning device of a rack, comprising an adjusting mechanism (1) and a tail rack (4), characterized in that: The adjustment mechanism (1) is located slightly forward of the tail roller (2). The tail frame (4) is provided with a tail roller (2) and a head roller (3) at both ends. The tail frame (4) is provided with an inspection hole (404) for adjustment. The adjustment mechanism (1) is adjusted through the inspection hole (404), which drives the tail roller (2) to slide, thereby tensioning the belt of the whole machine.

2. The internal sliding frame tail screw tensioning device according to claim 1, characterized in that: The adjustment mechanism (1) consists of a roller connecting plate (101), an inner slide rail (102), a lead screw (103), an adjustment bolt (104), and a fixed crossbeam (105). The adjustment bolt (104) is in a free state, while the rest are welded connections. The adjustment mechanism (1) extends the adjustment position toward the head of the belt conveyor through two parallel lead screws (103).

3. The internal sliding frame tail screw tensioning device according to claim 2, characterized in that: The tail frame (4) consists of an inner slide plate (401), a fixing plate (402), a side beam (403) and an inspection hole (404), forming an inner slide group with symmetrical sides. The adjustment mechanism (1) slides freely inside the inner slide group.

4. The internal sliding frame tail screw tensioning device according to claim 3, characterized in that: The adjusting bolts (104) are distributed on both sides of the fixed plate (402). By rotating the adjusting bolts (104), the adjusting mechanisms (1) on both sides of the inner slide group can move back and forth simultaneously.

5. The internal sliding frame tail screw tensioning device according to claim 4, characterized in that: The roller connecting plate (101) is connected to the tail roller (2) of the conveyor and slides on the inner slide plate (401) through the inner slide rail (102). The roller moves forward and backward due to the combined action of the adjusting bolt (104) and the fixing plate (402).

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