Flexible buffering device of belt conveyor

Abstract

According to the flexible buffering device of the belt conveyor, a plurality of buffering carrier rollers are integrated into a cooperative bearing body through a unique overall connecting structure, displacement fluctuation is limited through transverse and longitudinal constraint chains, and flexible height control is achieved in combination with a spiral adjusting mechanism. The innovative core is that a multi-carrier-roller linkage bearing mechanism is established, so that impact force is uniformly dispersed when materials are impacted; a multi-dimensional displacement restraint system is configured to eliminate irregular swing; and a dynamic adaptive structure is designed to maintain the operation stability in topographic change. The service life of the carrier roller is obviously prolonged, the deviation phenomenon of a conveying belt is effectively inhibited, and the reliability of a belt conveying system is comprehensively improved.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, and more particularly to a flexible buffer device at material transfer points under complex terrain conditions in open-pit mines. Background Technology

[0002] Tracked dumping machines, tracked mobile transfer conveyors, and other specialized equipment in open-pit mines all require belt conveyors to meet the functional requirements of material transfer. Users are increasingly demanding higher stability from belt conveyor systems, while also needing to extend the service life of the buffer idlers and reduce the frequency of replacement and maintenance cycles.

[0003] Traditional open-pit mine belt conveyors typically use multiple individually arranged buffer idlers at the material transfer and discharge points to withstand material impact. The shortcomings of this existing technology are: with multiple individually arranged buffer idlers, only 3 to 4 sets of idlers below the discharge point can effectively withstand material impact at any given time. These 3 to 4 sets of buffer idlers are easily damaged due to prolonged exposure to material impact. Furthermore, because the material's falling position is unstable, the suspended buffer idlers swing irregularly, making it more difficult to adjust the conveyor belt for deviation. Summary of the Invention

[0004] In response to the aforementioned technical problems, a flexible buffer device for belt conveyors is provided, which achieves uniform distribution of impact loads and synchronous suppression of irregular swaying through the synergistic effect of the multi-roller integral bearing structure and displacement constraint system.

[0005] The technical means employed in this invention are as follows: A flexible buffer device for a belt conveyor includes: multiple suspended buffer idlers, an idler connecting plate assembly (including: idler connecting plate one and idler connecting plate two) for connecting adjacent suspended buffer idlers, a plate connecting lock, a transverse fixing chain, a longitudinal fixing chain, a locking screw buckle, and a connecting plate; wherein the idler connecting plate assembly connects the multiple suspended buffer idlers into a whole to form an integral load-bearing structure, the transverse fixing chain is connected to the side of the idler connecting plate assembly to limit lateral displacement, the longitudinal fixing chain is connected to the end of the transverse fixing chain to limit longitudinal displacement, the longitudinal fixing chain is fixed to the connecting plate by the locking screw buckle, and the connecting plate is installed on the belt conveyor support beam.

[0006] This technical solution constructs a basic structural framework for the overall load-bearing of multiple idlers. Through the idler connecting plate assembly, multiple buffer idlers are mechanically linked to form a common load-bearing body, so that each idler evenly distributes the load when material is impacted (solving the problem of local overload caused by traditional separate arrangement). The chain displacement constraint system is used to prevent irregular swaying.

[0007] Furthermore, the idler roller connecting plate assembly includes: idler roller connecting plate one and idler roller connecting plate two; The first idler roller connecting plate is inserted into the hinge joint between the middle idler roller and the side idler roller and is fitted with the end connecting plate of the hanging buffer idler roller; The second idler roller connecting plate is connected to the first idler roller connecting plate via a locking buckle and chain hook.

[0008] This technical solution precisely defines the connection structure between idlers. Idler connecting plate one fits into the hinge point to achieve rigid-flexible conversion, and idler connecting plate two forms a movable connection through a locking mechanism. While ensuring the integrity of the whole, it retains the freedom of adjustment at a single point, achieving the dual characteristics of "rigid connection + flexible buffer".

[0009] Furthermore, the insert plate connecting latch adopts a hinged chain structure, which allows each suspended buffer roller to adaptively adjust its angle in the vertical direction.

[0010] This technical solution provides a slope adaptive adjustment mechanism. The hinged design of the locking mechanism allows each idler roller to deflect independently, enabling the idler roller group to automatically adapt to changes in ground inclination in complex terrain and eliminate stress concentration in the connecting parts caused by slope.

[0011] Furthermore, the locking screw buckle has a length adjustment function, and the distance between the suspended buffer roller group and the conveyor belt can be changed by rotating the locking screw buckle.

[0012] This technical solution establishes a height fine-tuning system, and the spiral buckle stroke can precisely control the distance between the conveyor belt and the idler group, which can reduce the frictional resistance under no-load conditions and optimize the impact absorption distance.

[0013] Furthermore, the transverse and longitudinal fixed chains form a cross-shaped constraint system. This technical solution constrains multi-directional displacement thresholds. The cross-shaped chain system limits transverse displacement, suppresses irregular swaying amplitude, and reduces conveyor belt deviation.

[0014] Furthermore, when material impacts the conveyor belt, the overall load-bearing structure causes all suspended buffer rollers (1) to swing synchronously, reducing the impact force on individual rollers. This technical solution quantifies the distributed load-bearing performance, and the overall structure disperses the impact force to all rollers, reducing the force at a single point.

[0015] The present invention, employing the above technical solution, has the following advantages over the prior art: This flexible buffer device, due to its hanging structure, can effectively adapt to the impact of ground slope on the belt conveyor system.

[0016] Due to its overall load-bearing and displacement characteristics, this flexible buffer device allows multiple suspended buffer rollers to simultaneously bear and displace materials when they impact the conveyor belt. This effectively reduces the stress on individual rollers and minimizes overall sway, which helps control conveyor belt deviation.

[0017] It effectively extends the service life of the buffer rollers and reduces the impact of downtime maintenance on equipment efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the front view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a schematic diagram of the end connecting plate assembly structure of the suspended buffer roller of the present invention; Figure 5 This is a schematic diagram of the insert plate connection locking structure of the present invention; Figure 6 This is a schematic diagram of the structure of the idler roller connecting plate of the present invention; Figure 7 This is a schematic diagram of the second structure of the idler roller connecting plate of the present invention.

[0020] In the picture: 1. Suspended buffer roller; 2. Roller connecting plate one; 3. Roller connecting plate two; 4. Plate connecting lock; 5. Horizontal fixing chain; 6. Longitudinal fixing chain; 7. Locking screw buckle; 8. Connecting plate; 9. Middle roller; 10. Side roller pin; 11. Suspended buffer roller. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0025] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0026] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0027] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0028] like Figure 1-7 As shown, a flexible buffer device for a belt conveyor consists of a suspended buffer roller 1, a roller connecting plate 1 2, a roller connecting plate 2 3, a plate connecting lock 4, a transverse fixing chain 5, a longitudinal fixing chain 6, a locking screw buckle 7, and a connecting plate 8.

[0029] Figures 1-4 : Insert roller connecting plate 12 at the hinge of the middle idler 9 and the side idler pin 10 to fix the suspended buffer idler 1. The roller connecting plate 12 is fitted with the end connecting plate of the suspended buffer idler 11. The roller connecting plate 12 and the plate connecting buckle 4 are connected as one unit by a chain hook. (3) The right side of the roller connecting plate 23 is connected by a transverse fixing lock 5 chain to limit the transverse displacement of the suspended buffer idler 1. The right side of the transverse fixing lock chain 5 is connected by a longitudinal fixing lock chain 6 to limit the longitudinal displacement of the suspended buffer idler 1. The longitudinal fixing lock chain 6 is connected to the lock screw buckle 7. The lock screw buckle 7 is fixed on the connecting plate 8. The connecting plate 8 is fixed on the belt conveyor support beam. The tightness of the lock screw buckle can be adjusted to control the connection between the suspended buffer idler and the conveyor belt. When materials impact the conveyor belt, the suspended buffer rollers 1, being connected as a whole, can swing as a whole and share the load.

[0030] The principle and usage of this invention are as follows: A fixed, suspended buffer roller is inserted into the hinge point between the middle and side rollers via a roller connecting plate one, forming a basic load-bearing unit with the roller end connecting plate. Then, roller connecting plate two and roller connecting plate one are connected to each other via a chain hook to form an integral frame, creating a multi-roller collaborative load-bearing structure. In use, when material impacts the conveyor belt, this integral frame drives all the suspended buffer rollers to swing synchronously, achieving uniform distribution of impact force. Simultaneously, the lateral fixing chain constrains the lateral displacement of the suspended buffer rollers, and the longitudinal fixing chain adjusts the beam position of the traction connecting plate via a locking screw, precisely controlling the longitudinal displacement range and forming a cross-shaped stable system. The entire device dynamically adjusts the hanging height through the locking screw to maintain the optimal distance from the conveyor belt. During continuous operation in the impact zone of an open-pit mine belt conveyor, it maintains load-bearing balance while effectively suppressing irregular vibration displacement characteristics, achieving simultaneous enhancement of impact resistance and operational stability.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A flexible buffer device for a belt conveyor, characterized in that, include: Multiple suspended buffer idlers (1), an idler connecting plate assembly for connecting adjacent suspended buffer idlers, a plate connecting buckle (4), a transverse fixing chain (5), a longitudinal fixing chain (6), a locking screw buckle (7), and a connecting plate (8); wherein the idler connecting plate assembly connects multiple suspended buffer idlers into an integral load-bearing structure, the transverse fixing chain (5) is connected to the side of the idler connecting plate assembly to limit transverse displacement, the longitudinal fixing chain (6) is connected to the end of the transverse fixing chain (5) to limit longitudinal displacement, the longitudinal fixing chain (6) is fixed to the connecting plate (8) by the locking screw buckle (7), and the connecting plate (8) is installed on the belt conveyor support beam.

2. The flexible buffer device for belt conveyors according to claim 1, characterized in that, The idler roller connecting plate assembly includes: The roller connecting plate 1 (2) is inserted into the hinge of the middle roller (9) and the side roller (10) and fitted with the end connecting plate (11) of the hanging buffer roller; The roller connecting plate 2 (3) is connected to the roller connecting plate 1 (2) by a chain hook through the plate connecting buckle (4).

3. The flexible buffer device for belt conveyors according to claim 2, characterized in that, The insert plate connecting buckle (4) adopts a hinged chain structure, which allows each hanging buffer roller to make adaptive angle adjustment in the vertical direction.

4. The flexible buffer device for belt conveyors according to claim 1, characterized in that, The locking screw buckle (7) has a length adjustment function, and the distance between the hanging buffer roller group and the conveyor belt can be changed by rotating the locking screw buckle (7).

5. The flexible buffer device for belt conveyors according to claim 1, characterized in that, The horizontal fixed chain (5) and the vertical fixed chain (6) form a cross-shaped constraint system.

6. The flexible buffer device for belt conveyors according to claim 1, characterized in that, When material impacts the conveyor belt, the overall bearing structure causes all the suspended buffer rollers (1) to swing synchronously, reducing the impact force on each individual roller.

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