Belt tension adjusting device of bucket-wheel stacker-reclaimer

Abstract

The utility model relates to the technical field of bucket wheel stacker-reclaimer, propose a kind of bucket wheel stacker-reclaimer belt tensioning adjusting device, the design includes reclaimer body, the belt mechanism of being arranged at the front of reclaimer body, the front of reclaimer body is provided with support assembly, support assembly includes sleeve seat, sleeve seat is fixedly connected at the front of reclaimer body, spring ring and tensioning assembly are provided in the inboard of sleeve seat, tensioning assembly includes the outer slide base of sliding connection in the outside of sleeve seat, tensioning assembly further includes the tensioning wheel of cooperation spring ring completion to belt mechanism elastic self-adapting tensioning effect;The design is through two big innovations of elastic self-adapting system and full-sealing anti-vibration design, systematic solution to the defects of comparative document on stability and dynamic response. Improvement suggestion focuses on pre-tightening force adjustable lifting adaptability and self-cleaning function enhanced reliability, further strengthen advantage.

Description

Technical Field

[0001] This utility model relates to the technical field of bucket wheel stacker-reclaimers, specifically to a belt tension adjustment device for bucket wheel stacker-reclaimers. Background Technology

[0002] Bucket wheel stacker-reclaimers are core equipment for efficient loading and unloading of large bulk materials in stockyards, widely used in ports, mines, power plants, and other industries. They consist of a cantilever that can tilt and swing horizontally, a rotating bucket wheel at the front, a frame, and a running mechanism. They achieve both stacking and reclaiming operations through continuous bucket wheel reclaiming and bidirectional operation of a belt conveyor, with a production capacity of over 10,000 tons per hour. The core component, the bucket wheel, comes in three types: unformatted, semi-formatted, and formatted. Unformatted bucket wheels are the most widely used, offering a large unloading range and high speed, suitable for sticky materials; formatted bucket wheels are suitable for hard materials, preventing jamming. The belt conveyor is a crucial link in material transport. The cantilever belt conveyor is mounted on a cantilever beam frame and driven by an electric drum. When rotating forward, it unloads material from the feed belt conveyor into the stockyard; when rotating in reverse, it transports material retrieved by the bucket wheel to the ground belt conveyor via a chute. The belt must be bidirectional, and a tensioning device (such as a counterweight or hydraulic type) must ensure stable operation and prevent deviation.

[0003] Announcement No. CN211846049U discloses a belt tensioning device for a bucket wheel stacker-reclaimer conveyor arm, comprising a redirecting roller support [2] installed on the cantilever beam [1] of the bucket wheel stacker-reclaimer conveyor arm, a first redirecting roller [3] and a second redirecting roller [6] installed on the redirecting roller support, and a hinge support base [7] installed on the cantilever beam. The redirecting roller support and the hinge support base are fixed to the cantilever beam by welding or bolts. A tensioning wheel hanger [9] is connected to the hinge support base. The tensioning wheel hanger can rotate radially along the hinge support base to adjust the tension of the belt [4]. The tensioning wheel hanger has a tensioning groove [8]. The tensioning wheel [5] installed on the tensioning wheel hanger can be adjusted to a suitable position in the tensioning groove according to the tension of the belt. This utility model has a simple structure, low cost, good safety performance, and is convenient for maintenance and repair.

[0004] The tensioning wheel of the belt conveyor arm tensioning device of the bucket wheel stacker-reclaimer mentioned above relies on bolts to be manually fixed in the tensioning groove. The high-frequency vibration of the bucket wheel machine can easily cause the bolts to loosen and the belt tension to become unstable, requiring frequent manual adjustment. Utility Model Content

[0005] This utility model proposes a belt tension adjustment device for a bucket wheel stacker-reclaimer, which solves the problem of insufficient tension stability and the need for frequent manual adjustment in the existing technology.

[0006] The technical solution of this utility model is as follows: A belt tensioning adjustment device for a bucket wheel stacker-reclaimer includes a reclaimer body and a belt mechanism disposed on the front side of the reclaimer body. A support assembly is disposed on the front side of the reclaimer body. The support assembly includes a sleeve, which is fixedly connected to the front side of the reclaimer body. A spring ring and a tensioning assembly are disposed on the inner side of the sleeve. The tensioning assembly includes an outer slide block slidably connected to the outer side of the sleeve. The tensioning assembly also includes a tensioning wheel that cooperates with the spring ring to complete the elastic adaptive tensioning of the belt mechanism.

[0007] Preferably, the support assembly further includes a limiting straight plate, which is symmetrically and fixedly connected to the inner side of the sleeve.

[0008] Preferably, the support assembly further includes sleeves, which are symmetrically and fixedly connected to the inner side of the sleeve base, and the inner side of each sleeve is slidably connected to a sliding rod.

[0009] Preferably, the support assembly further includes an inner slide block, which is slidably connected to the limiting straight plate, and the side of the inner slide block is fixedly connected to the slide rod.

[0010] Preferably, the spring ring is sleeved on the outside of the slide rod, one end of the spring ring is fixedly connected to the inner slide seat, and the other end of the spring ring is fixedly connected to the slide rod.

[0011] Preferably, the support assembly further includes a rail groove, which is formed on the front of the sleeve, and the support assembly further includes through slots, which are symmetrically formed on the bottom of the sleeve.

[0012] Preferably, the bottom of the outer slide block is symmetrically and fixedly connected with a U-shaped connecting rod, the U-shaped connecting rod passes through the through groove and is fixedly connected to the inner slide block, and the back of the outer slide block corresponds to the position of the rail groove.

[0013] Preferably, the tensioning assembly further includes a mounting post, which is fixedly connected to the front of the outer slide block. The tensioning assembly also includes a sealed bearing, which is assembled on the outside of the mounting post. The inner ring of the sealed bearing is fixedly connected to the mounting post, and the outer ring of the sealed bearing is fixedly connected to the tensioning wheel.

[0014] The beneficial effects of this utility model are as follows: I. Elastic self-adaptive tensioning mechanism: The transmission chain is via spring ring → slide rod → U-shaped connecting rod → outer slide block: When the belt tension changes, the spring coil automatically extends and retracts, pushing the tension wheel to move and achieving dynamic constant tension. The rotation adjustment of the comparison file has been upgraded to a linear elastic response, resulting in higher precision.

[0015] The essence of the improvement: from passive manual adjustment to active mechanical self-adaptation.

[0016] II. Fully Sealed Vibration-Resistant Structure The tensioner pulley is installed with a sealed bearing, completely isolating it from dust and moisture. The sliding rod slides within the sleeve, and the limiting straight plate guides it, improving its resistance to lateral impacts. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a front view of the overall device of this utility model; Figure 2 This is a schematic diagram showing the connection between the sleeve and the outer slide of this utility model; Figure 3 for Figure 2 Enlarged view of region A; Figure 4 This is a schematic diagram showing the disassembled sleeve and outer slide of this utility model; In the diagram: 1. Material handling machine body; 2. Belt mechanism; 3. Support assembly; 31. Sleeve; 311. Rail groove; 312. Through groove; 313. Limiting straight plate; 32. Sleeve; 321. Slide rod; 33. Spring ring; 34. Inner slide; 4. Tensioning assembly; 41. Outer slide; 411. U-shaped connecting rod; 42. Mounting column; 421. Sealed bearing; 422. Tensioning wheel. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a belt tensioning adjustment device for a bucket wheel stacker-reclaimer, including a reclaimer body 1, a belt mechanism 2 disposed on the front of the reclaimer body 1, a support component 3 disposed on the front of the reclaimer body 1, the support component 3 including a sleeve 31, the sleeve 31 being fixedly connected to the front of the reclaimer body 1, a spring ring 33 and a tensioning component 4 disposed on the inner side of the sleeve 31, the tensioning component 4 including an outer slide block 41 slidably connected to the outer side of the sleeve 31, and the tensioning component 4 also including a tensioning wheel 422 that cooperates with the spring ring 33 to complete the elastic adaptive tensioning of the belt mechanism 2; This design systematically addresses the shortcomings of the comparative design in terms of stability and dynamic response through two major innovations: an elastic adaptive system and a fully sealed vibration-resistant design. Improvement suggestions focus on adjusting the preload to enhance adaptability and improving self-cleaning functionality to increase reliability, further strengthening its advantages.

[0021] The support component 3 also includes a limiting straight plate 313, which is symmetrically and fixedly connected to the inside of the sleeve 31; The support assembly 3 also includes sleeves 32, which are symmetrically fixedly connected to the inner side of the sleeve base 31, and the inner side of each sleeve 32 is slidably connected to the slide rod 321. The support assembly 3 also includes an inner slide 34, which is slidably connected to the limiting straight plate 313, and the side of the inner slide 34 is fixedly connected to the slide rod 321. Spring ring 33 is sleeved on the outside of slide rod 321. One end of spring ring 33 is fixedly connected to inner slide seat 34, and the other end of spring ring 33 is fixedly connected to slide rod 321. The support component 3 also includes a rail groove 311, which is opened on the front of the sleeve 31. The support component 3 also includes a through groove 312, which is symmetrically opened on the bottom of the sleeve 31. The bottom of the outer slide block 41 is symmetrically and fixedly connected with a U-shaped connecting rod 411. The U-shaped connecting rod 411 passes through the through groove 312 and is fixedly connected to the inner slide block 34. The back of the outer slide block 41 corresponds to the position of the rail groove 311. The tensioning assembly 4 also includes a mounting post 42, which is fixedly connected to the front of the outer slide block 41. The tensioning assembly 4 also includes a sealed bearing 421, which is assembled on the outside of the mounting post 42. The inner ring of the sealed bearing 421 is fixedly connected to the mounting post 42, and the outer ring of the sealed bearing 421 is fixedly connected to the tensioning wheel 422. The working principle and usage process of this utility model are as follows: The belt mechanism 2 is fitted onto the tensioning wheel 422 to ensure that the tensioning wheel 422 can perform adaptive tensioning of the belt mechanism 2. In particular, this design provides a sealed bearing 421 in the middle of the tensioning wheel 422 and the mounting column 42 to increase the smoothness of the rotation of the tensioning wheel 422. When the belt mechanism 2 experiences tension changes, the slide bar 321 can drive the inner slide block 34 to continuously and elastically press downwards, thereby causing the U-shaped connecting rod 411, which is fixedly connected to one side of the bottom of the inner slide block 34, to drive the outer slide block 41 to slide on the front of the sleeve 31. The slide bar 321 can keep the tension wheel 422 in tension balance, thereby avoiding the problem of the belt mechanism 2's transmission being affected due to excessive tension.

[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A belt tensioning adjustment device for a bucket wheel stacker-reclaimer, comprising a reclaimer body (1) and a belt mechanism (2) disposed on the front side of the reclaimer body (1), characterized in that, The front of the material handling machine body (1) is provided with a support component (3). The support component (3) includes a sleeve (31). The sleeve (31) is fixedly connected to the front of the material handling machine body (1). The inner side of the sleeve (31) is provided with a spring ring (33) and a tensioning component (4). The tensioning component (4) includes an outer slide (41) slidably connected to the outer side of the sleeve (31). The tensioning component (4) also includes a tensioning wheel (422) that works with the spring ring (33) to complete the elastic adaptive tensioning of the belt mechanism (2).

2. The belt tensioning adjustment device for a bucket wheel stacker-reclaimer according to claim 1, characterized in that, The support component (3) also includes a limiting straight plate (313), which is symmetrically fixedly connected to the inside of the sleeve (31).

3. The belt tensioning adjustment device for a bucket wheel stacker-reclaimer according to claim 2, characterized in that, The support assembly (3) also includes a sleeve (32), which is symmetrically fixedly connected to the inner side of the sleeve base (31), and the inner side of each sleeve (32) is slidably connected to a slide rod (321).

4. The belt tensioning adjustment device for a bucket wheel stacker-reclaimer according to claim 1, characterized in that, The support assembly (3) also includes an inner slide (34), which is slidably connected to the limiting straight plate (313), and the side of the inner slide (34) is fixedly connected to the slide rod (321).

5. The belt tensioning adjustment device for a bucket wheel stacker-reclaimer according to claim 1, characterized in that, The spring coil (33) is sleeved on the outside of the slide rod (321). One end of the spring coil (33) is fixedly connected to the inner slide seat (34), and the other end of the spring coil (33) is fixedly connected to the slide rod (321).

6. The belt tensioning adjustment device for a bucket wheel stacker-reclaimer according to claim 1, characterized in that, The support component (3) also includes a rail groove (311), which is opened on the front of the sleeve (31). The support component (3) also includes a through groove (312), which is symmetrically opened on the bottom of the sleeve (31).

7. The belt tensioning adjustment device for a bucket wheel stacker-reclaimer according to claim 1, characterized in that, The bottom of the outer slide (41) is symmetrically and fixedly connected with a U-shaped connecting rod (411). The U-shaped connecting rod (411) passes through the through groove (312) and is fixedly connected with the inner slide (34). The back of the outer slide (41) corresponds to the position of the rail groove (311).

8. A belt tensioning adjustment device for a bucket wheel stacker-reclaimer according to claim 7, characterized in that, The tensioning assembly (4) also includes a mounting post (42), which is fixedly connected to the front of the outer slide (41). The tensioning assembly (4) also includes a sealed bearing (421), which is assembled on the outside of the mounting post (42). The inner ring of the sealed bearing (421) is fixedly connected to the mounting post (42), and the outer ring of the sealed bearing (421) is fixedly connected to the tensioning wheel (422).

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