Belt conveyor frame and belt conveyor comprising same

Abstract

The utility model discloses a material transportation technical field's belt conveyor frame and contain its belt conveyor, belt conveyor frame is used for connecting ground and track, contains stand, frame main beam, truss and frame secondary beam, in along track extension direction, two sides symmetry sets up stand, and the upper end surface of a plurality of stands of each side is fixedly connected frame main beam, and frame main beam connects adjacent stand of same side, and is used for laying track above, still be provided with truss between adjacent stand of same side, and truss is parallel to frame main beam and sets up, and frame secondary beam extends horizontally and is connected between two stands of symmetry setting. The existing " frame beam upper column " structure is optimized for " beam top column " structure, and frame secondary beam is additionally provided. Can effectively deliver the heavy load of whole mine car to ground directly, effectively disperses the impact force when unloading mine, reduces eccentric bending moment and improves the overall operation stability of equipment, satisfies the demand of mobile mine material transportation under the weak environment of foundation.

Description

Technical Field

[0001] This utility model relates to the field of material transportation technology, and in particular to a belt conveyor frame and a belt conveyor including the frame. Background Technology

[0002] Belt conveyors are widely used mining equipment, mainly composed of basic components such as conveyor belts, idlers, drive units, frames, unloading cars, tensioning devices, and cleaning devices. The conveyor belt forms a closed loop around drive drums, idler drums, and guide drums. The tensioning device ensures the conveyor belt receives the tension required for normal operation. The drive unit drives the conveyor belt continuously through the friction between the drive drums and the conveyor belt. The material loaded on the conveyor belt is precisely distributed to various ore bins via unloading cars.

[0003] The existing belt conveyor frame is a "beam-column" structure, referring to... Figure 1 and Figure 2 It includes existing columns 5 made of 75mm angle steel and belt main beams 4 made of 140mm channel steel. The existing columns 5 are symmetrically arranged on both sides of the extension direction of the existing track 1. The belt main beams 4 are arranged parallel to the extension direction of the existing track 1 and connected to the upper end of the existing columns 5. Multiple cantilever beams 2 are arranged at intervals along the extension direction of the existing track 1. The cantilever beams 2 extend outward relative to the existing columns 5. The top of the cantilever beams 2 forms track support columns. The existing track 1 is erected on the track support columns corresponding to the multiple cantilever beams 2.

[0004] The problem with the existing technology is that the structure, consisting of the existing uprights 5, the main belt beam 4, and the track support columns, is subject to the indirect transmission path of "unloading car → existing track 1 → track support column → main belt beam 4 → existing uprights 5" due to the combined heavy-load kinetic energy of the unloading car and track, and the potential energy of the belt conveyor. This results in insufficient overall structural rigidity and lateral stiffness, stress concentration, and structural instability. This design flaw is particularly pronounced under heavy-load, high-frequency operating conditions, making the frame a vulnerable link in the entire conveying system. In practice, the applicant uses the existing belt conveyor frame, which results in a high equipment failure rate, disrupting the continuous operation of the production line and introducing significant uncertainty into the ore crushing production plan. Utility Model Content

[0005] To address the technical problem of high failure rate of existing belt conveyor frame "beam-column" structures under heavy load conditions, this utility model provides a belt conveyor frame and a belt conveyor including the frame.

[0006] The technical solution adopted by this utility model to solve its technical problem is: The belt conveyor frame, used to connect the ground and the track, includes columns, main frame beams, trusses, and secondary frame beams. Columns are symmetrically arranged on both sides along the track extension direction, and the upper end face of multiple columns on each side is fixedly connected to the main frame beam. The main frame beam connects to adjacent columns on the same side and is used for laying the track on top. Trusses are also arranged between adjacent columns on the same side, and the trusses are arranged parallel to the main frame beam. The secondary frame beams extend horizontally and connect between two symmetrically arranged columns.

[0007] In this application, the existing "beam-on-column" structure is optimized into a "beam-top-column" structure, and a secondary beam of the frame is added. This semi-box-type structural design can effectively transfer the heavy load of the entire unloading car directly to the ground. At the same time, this structure can effectively disperse the impact force during unloading, reduce eccentric bending moment, and improve the overall operational stability of the equipment. It can meet the needs of mining and underground mining under various heavy load conditions, in environments with weak foundations, or for mobile ore transportation, providing high strength and low maintenance requirements. Here, "beam-top-column" refers to the main beam of the frame located at the top of the column.

[0008] In some embodiments, adjacent columns on the same side, and trusses and columns are connected by diagonal bracing.

[0009] In some embodiments, the upper end face of the secondary beam of the frame is flush with the upper end face of the column.

[0010] In some embodiments, the truss is connected at the middle of the column.

[0011] In some embodiments, the columns are I-beams and the trusses are channel steel.

[0012] In some embodiments, the main beam of the frame is an I-beam.

[0013] In some embodiments, the secondary beams of the frame are I-beams.

[0014] In some embodiments, the belt conveyor frame is configured as multiple segments along the track extension direction.

[0015] This utility model also provides a belt conveyor, comprising a belt conveyor frame, a track, and an unloading car. The track is erected on the belt conveyor frame, and the unloading car can run along the track. The belt conveyor frame is the belt conveyor frame in any of the foregoing embodiments.

[0016] In some embodiments, the front and rear wheels of the ore unloading car are configured such that the front wheels are driving wheels and the rear wheels are driven wheels.

[0017] The beneficial effects of this utility model are: The existing "beam-on-column" structure was optimized into a "beam-top-column" structure, with the addition of secondary beams to the frame. This semi-box-type structural design effectively transfers the heavy load of the entire unloading car directly to the ground. Simultaneously, this structure effectively disperses the impact force during unloading, reduces eccentric bending moments, and improves the overall operational stability of the equipment. It can meet the needs of mining and underground operations under various heavy loads, in environments with weak foundations, or for mobile ore transportation, providing high strength and low maintenance requirements. Here, "beam-top-column" refers to the main frame beam being located at the top of the columns. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a belt conveyor frame after installation, with the cross-section perpendicular to the track extension direction. Figure 2 This is a schematic diagram of the structure of a belt conveyor frame after installation along the track extension direction in the existing technology; Figure 3 This is a schematic diagram of the structure of the improved belt conveyor frame in this application, with the cross-section perpendicular to the track extension direction. Figure 4 This is a schematic diagram of the improved belt conveyor frame along the track extension direction. Figure 5 This is a schematic diagram of the structure of the improved belt conveyor frame after installation, perpendicular to the track extension direction; Figure 6 This is a schematic diagram of the structure of the improved belt conveyor frame after installation along the track extension direction.

[0019] The markings in the diagram are as follows: 1-existing track, 91-track, 2-cantilever beam, 3-roller bracket, 4-belt main beam, 5-existing column, 95-column, 6-lower roller, 7-diagonal tie rod, 8-frame main beam, 9-truss, 10-frame secondary beam, 11-pad plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the present invention will be further described below with reference to the accompanying drawings.

[0021] First, it should be stated that the technical solutions of the embodiments of this application are clearly and completely described. The described embodiments are only some of the embodiments of this application, and not a limitation of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] In the description of this utility model, it should be understood that the terms "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and are not intended to indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0023] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Reference Figure 1 and Figure 2 The diagram shows a schematic of the structure of a belt conveyor frame after installation in the prior art.

[0025] The belt conveyor used in the previous production practice was a DTL120 / 120 / 2*200S type belt conveyor. As mentioned earlier, the existing belt conveyor frame is a "beam-column" structure, referring to... Figure 1 and Figure 2 It includes existing columns 5 made of 75mm angle steel and belt main beams 4 made of 140mm channel steel. The existing columns 5 are symmetrically arranged on both sides of the extension direction of the existing track 1. The belt main beams 4 are arranged parallel to the extension direction of the existing track 1 and connected to the upper end of the existing columns 5. Multiple cantilever beams 2 are arranged at intervals along the extension direction of the existing track 1. The cantilever beams 2 extend outward relative to the existing columns 5. The top of the cantilever beams 2 forms track support columns. The existing track 1 is erected on the track support columns corresponding to the multiple cantilever beams 2.

[0026] Belt conveyors are widely used mining equipment, mainly composed of basic components such as conveyor belts, idlers, drive units, frames, unloading cars, tensioning devices, and cleaning devices. The conveyor belt forms a closed loop around the drive drum, redirecting drum, and approach drum. The tensioning device ensures the conveyor belt receives the tension required for normal operation. The drive unit drives the conveyor belt continuously through the friction between the drive drum and the conveyor belt. The material loaded on the conveyor belt is precisely distributed to various ore bins via the unloading cars. Idler rollers include the idler bracket 3 and the lower idler roller 6 shown in the figure.

[0027] The existing belt conveyor frame design has the following problems: Design flaws in the frame: The weight of the unloading car is relatively large. After long-term operation, the main beam of the belt conveyor 4 and the existing track 1 are prone to wear and deformation, resulting in non-structural damage such as breakage at the connection between the existing column 5 and the main beam of the belt conveyor 4, between the existing column 5 and the embedded parts, and the main beam of the belt conveyor 4 itself.

[0028] Derailment of the unloading car's traveling wheels: The existing track 1 of the unloading car is installed in a semi-suspended state, causing the existing track 1 and the crossbeam 2 to bear all the dynamic loads and stress concentration of the unloading car. Under heavy load, it is easy to cause the frame to shake and deviate, resulting in the traveling wheels derailing.

[0029] Unreasonable mechanical structure: The front and rear running wheels of the ore unloading car adopt dual drive control, which is complicated to debug and can easily lead to damage to the reducer or detachment of the installation parts, causing mechanical accidents.

[0030] High maintenance costs: Increased equipment failure and repair rates lead to significantly higher maintenance costs and shorten the equipment's lifespan.

[0031] Reference Figure 3 and Figure 4 The present application illustrates an improved belt conveyor frame; see reference to Figure 5 and Figure 6 The diagram shows the structure of the improved belt conveyor frame after installation.

[0032] The belt conveyor frame, used to connect the ground and the track 91, includes columns 95, main frame beams 8, trusses 9, and secondary frame beams 10. Columns 95 are symmetrically arranged on both sides along the extension direction of the track 91, and the upper end face of multiple columns 95 on each side is fixedly connected to the main frame beams 8. The main frame beams 8 connect adjacent columns 95 on the same side and are used to lay the track 91 on top. Trusses 9 are also arranged between adjacent columns 95 on the same side, and the trusses 9 are arranged parallel to the main frame beams 8. The secondary frame beams 10 extend horizontally and connect between the two symmetrically arranged columns 95.

[0033] In this application, the existing "beam-on-column" structure is optimized into a "beam-top-column" structure, and a secondary beam 10 of the frame is added. This semi-box-type structural design can effectively transfer the heavy load of the entire unloading car directly to the ground. At the same time, this structure can effectively disperse the impact force during unloading, reduce eccentric bending moment, and improve the overall operational stability of the equipment. It can meet the needs of mining and underground mining under various heavy load conditions in weak foundation environments or for mobile ore transportation, providing high strength and low maintenance requirements. Here, "beam-top-column" refers to the main beam 8 of the frame located at the top of the column 95.

[0034] In this embodiment, refer to Figure 4 and Figure 6As shown, adjacent columns 95 on the same side, and truss 9 and column 95 are connected by diagonal bracing 7. Diagonal bracing 7 is made of 75mm angle steel.

[0035] In this embodiment, the upper end face of the secondary beam 10 of the frame is flush with the upper end face of the column 95.

[0036] In this embodiment, the truss 9 is connected to the middle of the column 95. Here, the middle of the column 95 refers to the portion between 1 / 3 and 2 / 3 of the height of the column 95.

[0037] In this embodiment, column 95 is an I-beam and truss 9 is a channel steel.

[0038] In the existing technology, the connection nodes of channel steel and angle steel are numerous and complex, and the welding quality is difficult to guarantee. This can easily lead to problems such as fatigue cracking and slippage failure of bolted connections. Under long-term heavy loads and high-frequency use, these problems will further aggravate the fatigue damage of the structure, thereby reducing its load-bearing capacity and stability.

[0039] In this embodiment, the main beam 8 of the frame is an I-beam, and the secondary beam 10 of the frame is an I-beam.

[0040] Specifically, the main beam 8, column 95, and secondary beam 10 of the frame are all made of HW-200mm*200mm*8mm*12 steel, and the truss 9 is made of 200mm channel steel.

[0041] In this embodiment, 20mm thick pads 11 are provided at both the upper and lower ends of the main beam 8 of the frame to further balance the force and ensure stability.

[0042] Furthermore, along the extension direction of track 91, the belt conveyor frame is configured in multiple segments.

[0043] This configuration enhances the interchangeability of the belt conveyor frame, reducing the failure rate while allowing for rapid reconfiguration and replacement even in the event of a failure, thus minimizing downtime.

[0044] This utility model also provides a belt conveyor, which includes a belt conveyor frame, a track 91 and an unloading car. The track 91 is erected on the belt conveyor frame, and the unloading car can run along the track 91. The belt conveyor frame is the aforementioned belt conveyor frame.

[0045] In this embodiment, the front and rear wheels of the ore unloading car are configured such that the front wheels are driving wheels and the rear wheels are driven wheels. Compared with the prior art, which uses dual drive control for the front and rear wheels, this solves the problem of difficulty in controlling synchronization.

[0046] Furthermore, the center of gravity distribution of the unloading car can be optimized by moving the drive wheel forward and adjusting the position of the ore discharge hopper, so that the four driving wheels can share the heavy load and improve the overall load-bearing capacity of the unloading car.

[0047] In practice, the track 91 was also upgraded, with the hot-rolled steel rails being upgraded from 25kg / m to 50kg / m, improving the stability of the belt conveyor and ore unloading car operation. In field practice, the improved technical solution can increase ore transportation capacity from 9,000 tons per shift to 12,000 tons, increase load-bearing capacity by 112%, increase lateral stiffness by 5 times, and reduce downtime rate by 99%, thus ensuring production efficiency and timely and smooth production.

[0048] In summary, the belt conveyor in this application has at least the following advantages over the prior art.

[0049] Enhanced load-bearing capacity: Through the optimization of the "column-beam-ribbon" structure, the load-bearing capacity and stability of the frame are significantly improved.

[0050] Reduced maintenance costs: The modular design and single-drive structure simplify maintenance and repair processes, reducing equipment maintenance costs and spare parts expenses.

[0051] Improve operational efficiency: Optimize the center of gravity distribution of the unloading car and the design of track 91 to reduce vibration and impact and ensure stable operation of the unloading car.

[0052] Extended service life: Through structural optimization and material upgrades, the service life of the equipment is significantly extended.

Claims

1. A belt conveyor frame for connecting the ground and a track (91), characterized in that: It includes columns (95), main beams (8), trusses (9) and secondary beams (10). Columns (95) are symmetrically arranged on both sides along the extension direction of the track (91), and the upper end face of multiple columns (95) on each side is fixedly connected to the main beams (8). The main beams (8) connect to adjacent columns (95) on the same side and are used to lay the track (91) on top. Trusses (9) are also arranged between adjacent columns (95) on the same side. The trusses (9) are arranged parallel to the main beams (8). The secondary beams (10) extend horizontally and are connected between two symmetrically arranged columns (95).

2. The belt conveyor frame as described in claim 1, characterized in that: in Adjacent columns (95) on the same side are connected by diagonal bracing (7).

3. The belt conveyor frame as described in claim 1, characterized in that: The upper end face of the secondary beam (10) of the frame is flush with the upper end face of the column (95).

4. The belt conveyor frame as described in claim 1, characterized in that: The truss (9) is connected to the middle of the column (95).

5. The belt conveyor frame as described in claim 1, characterized in that: The columns (95) are I-beams, and the trusses (9) are channel steel.

6. The belt conveyor frame as described in claim 1, characterized in that: The main beam (8) of the frame is an I-beam.

7. The belt conveyor frame as described in claim 1, characterized in that: The secondary beam (10) of the frame is an I-beam.

8. The belt conveyor frame as described in any one of claims 1-7, characterized in that: Along the direction of track (91), the belt conveyor frame is configured in multiple segments.

9. A belt conveyor, comprising a belt conveyor frame, a track (91), and unloading cars, wherein the track (91) is erected on the belt conveyor frame, and the unloading cars can run along the track (91), characterized in that: The belt conveyor frame is the belt conveyor frame as described in any one of claims 1-8.

10. The belt conveyor as described in claim 9, characterized in that: The ore unloading car is configured with the front wheels being the driving wheels and the rear wheels being the driven wheels.

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