Foldable transition conveying belt conveyor device convenient to move

Abstract

The utility model provides a foldable transition belt conveyor device convenient to move, which comprises a movable underframe, a rotary chassis and a folding belt mechanism, the rotary chassis is rotatably connected to the movable underframe, the folding belt mechanism is arranged at the top of the rotary chassis, and a lifting hydraulic cylinder is arranged at the bottom of the rotary chassis. By means of folding and rotating mechanisms, the space and efficiency limitation when traditional conveying equipment is used under a mine well is effectively overcome, deployment of the belt conveyor in a narrow space is more flexible through the folding mechanism, and meanwhile the height and the direction are rapidly adjusted through the hydraulic adjusting system.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to a foldable and movable transitional belt conveyor device. Background Art

[0002] In underground mine operations, due to the narrow and complex roadways, conventional transportation equipment such as fixed belt conveyors and scraper conveyors are difficult to meet the requirements of temporary and short-distance transportation. Traditional equipment often results in low transportation efficiency due to its large volume and complex installation, with a large amount of installation and maintenance work, and there are safety risks during operation. Therefore, there is an urgent need for a transportation solution with a flexible structure, easy to move, and can be quickly deployed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a foldable and movable transitional belt conveyor device to solve the efficiency and safety problems in short-distance transportation in underground mines. This device is particularly suitable for underground mine roadways. Through the folding mechanism, the belt conveyor can be deployed more flexibly in narrow spaces. At the same time, through the hydraulic adjustment system, the height and direction can be quickly adjusted.

[0004] According to an object of the utility model, the utility model provides a foldable and movable transitional belt conveyor device, which includes a movable chassis, a rotating chassis, and a folding belt mechanism. The rotating chassis is rotatably connected to the movable chassis, the folding belt mechanism is arranged on the top of the rotating chassis, and a lifting hydraulic cylinder is arranged at the bottom of the rotating chassis.

[0005] Further, the movable chassis includes a mine car chassis, a rubber wheel chassis, or a crawler chassis.

[0006] Further, the rotating chassis is provided with a rotating shaft, and the rotating chassis is rotatably connected to the movable chassis through the rotating shaft.

[0007] Further, the folding belt mechanism includes an intermediate belt rack and a folding belt rack, and the folding belt rack is arranged at both ends of the intermediate belt rack through folding hinges.

[0008] Further, a fixed bracket, a limit bracket, and an adjustment hydraulic cylinder are arranged between the intermediate belt rack and the rotating chassis.

[0009] Further, the folding belt rack includes a folding mechanism, and the folding mechanism includes a folding hydraulic cylinder and a folding crank. The folding crank is arranged between the intermediate belt rack and the folding belt rack. The folding hydraulic cylinder is hinged to the intermediate belt rack, and the folding hydraulic cylinder is hinged to the folding crank.

[0010] Further, a driving roller is installed on the folding belt rack near one end of the adjusting hydraulic cylinder, and a driven roller is installed on the folding belt rack at the other end.

[0011] Further, a belt tensioner is provided at the end of the folding belt rack where the driven roller is installed.

[0012] Further, several straight supporting rollers are provided on both sides of the bottom of the intermediate belt rack, and several three-section supporting rollers are provided on the top of the intermediate belt rack.

[0013] Further, belt pressing wheels are respectively installed on the intermediate belt rack and the folding belt rack.

[0014] The technical solution of the present utility model effectively overcomes the space and efficiency limitations faced by traditional transportation equipment when used in underground mines through the folding and rotation mechanisms. Through the folding mechanism, the belt conveyor is more flexible to deploy in narrow spaces. At the same time, the hydraulic adjustment system is used to quickly adjust the height and direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the folded state of an embodiment of the present utility model;

[0018] Figure 3 It is a side view of an embodiment of the present utility model;

[0019] Figure 4 It is a schematic structural diagram when the embodiments of the present utility model are used in combination;

[0020] In the figure: 1, movable chassis; 2, rotating chassis; 3, rotating shaft; 4, fixing pin; 5, fixing bracket; 6, limiting bracket; 7, adjusting hydraulic cylinder; 8, lifting hydraulic cylinder; 9, straight supporting roller; 10, folding belt rack; 11, driving roller; 12, folding crank; 13, folding hinge; 14, belt pressing wheel; 15, folding hydraulic cylinder; 16, three-section supporting roller; 17, intermediate belt rack; 18, flame-retardant belt; 19, driven roller; 20, belt tensioner. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] Embodiment 1

[0025] As Figures 1 - 4 shown,

[0026] A foldable and movable transitional conveyor belt device includes a movable chassis 1, a rotating chassis 2, and a folding belt mechanism. The rotating chassis 2 is rotatably connected to the movable chassis 1, and the folding belt mechanism is arranged on the rotating chassis 2.

[0027] In this embodiment, the movable chassis 1 can have various forms, such as a mine car chassis (with four wheels), a rubber wheel chassis (with four wheels), or a crawler chassis, etc.

[0028] The rotating chassis 2 is rotatably arranged on the movable chassis 1. The rotating chassis 2 is a rectangular steel plate with a hole in the middle. The rotating chassis 2 and the movable chassis 1 are connected by a rotating shaft 3. Positioning pin holes are also respectively provided on the rotating chassis 2 and the movable chassis 1. A fixing pin is arranged in the positioning pin hole to fix the rotating chassis 2 and the movable chassis 1.

[0029] The rotating shaft 3 can be connected to the movable chassis 1. The rotating chassis 2 can rotate 360° around the rotating shaft 3. The rotation drive can be manual, hydraulic, electric, etc. When the rotation is in place, the rotating chassis 2 and the movable chassis 1 are fixed with a fixing pin 4.

[0030] The folding belt mechanism includes an intermediate belt rack 17. Two fixed brackets 5, two limit brackets 6 and two adjusting hydraulic cylinders 7 arranged side by side are respectively fixed at the top end of the rotating chassis 2. The intermediate belt rack 17 is arranged above the rotating chassis 2. The bottom of the intermediate belt rack 17 is respectively hinged to the tops of the fixed bracket 5, the limit bracket 6 and the adjusting hydraulic cylinder 7.

[0031] The two fixed brackets 5 are used to support the intermediate belt rack 17. A connection hole is provided at the upper end of the fixed bracket 5, and a connection shaft is arranged in the connection hole. The intermediate belt rack 17 is hinged to the fixed bracket 5 through the connection shaft.

[0032] The limit brackets 6 are arranged at the middle position of the rotating chassis 2. The two limit brackets 6 are of an inner and outer sleeve structure. The limit bracket 6 includes an outer sleeve and an inner sleeve. The bottom of the outer sleeve is hinged to the rotating chassis 2. The inner sleeve is slidably arranged inside the outer sleeve and the inner sleeve can slide up and down along the outer sleeve. A high-strength spring is fixed at the inner bottom of the outer sleeve. The bottom of the high-strength spring is fixedly connected to the bottom of the outer sleeve, and the top of the high-strength spring is fixedly connected to the bottom of the inner sleeve. A limit pin is arranged at the bottom of the inner sleeve, and the inner sleeve can be prevented from slipping out of the outer sleeve through the limit pin. The functions of the limit bracket 6 are, first, to prevent the belt from swaying left and right during operation, and second, when the belt rack is adjusted upward in height, it will not be too high due to the limitation of the high-strength spring, and the belt head can be prevented from touching the roadway roof and the equipment attached to the roof.

[0033] The two adjusting hydraulic cylinders 7 are located on the other side of the rotating chassis 2. The bottoms of the two adjusting hydraulic cylinders 7 are hinged to the top of the rotating chassis 2, and the top ends of the adjusting hydraulic cylinders 7 are hinged to the intermediate belt rack 17. The adjusting hydraulic cylinders 7 are used to adjust the height of the belt rack.

[0034] A total of four lifting hydraulic cylinders 8 are installed on both sides of the bottom of the rotating chassis 2. The lifting hydraulic cylinders 8 are used to lift the entire rotating chassis 2 and the folding belt mechanism on the rotating chassis 2. The functions of the lifting hydraulic cylinders 8 are, first, to facilitate the maintenance and replacement of the movable chassis 1 part, second, to move the whole belt conveyor device horizontally left and right, and third, to play a stabilizing role during the operation of the belt conveyor.

[0035] In this embodiment, the folding belt mechanism uses the middle belt rack 17 as the base rack. On both sides of the bottom of the middle belt rack 17, a number of straight supporting wheels 9 are provided. On the top of the middle belt rack 17, a number of three-section supporting wheels 16 are provided, and the three-section supporting wheels 16 are used to support the flame-retardant belt 18.

[0036] At both ends of the middle belt rack 17, a folding belt rack 10 is provided respectively. The folding belt rack 10 and the middle belt rack 17 are connected by four folding hinges 13.

[0037] A driving roller 11 is installed on the folding belt rack 10 near one end of the adjusting hydraulic cylinder 7. The driving roller can be an electric roller, a motor gearbox roller, a hydraulic motor drive, etc. A driven roller 19 is installed on the other folding belt rack 10. At the end of the folding belt rack 10 where the driven roller 19 is installed, two belt tensioners 20 are provided.

[0038] A folding crank 12 is also provided between the middle belt rack 17 and the folding belt rack 10, and the folding crank 12 is arranged corresponding to the folding hinge 13. At both ends of the middle belt rack 17, folding hydraulic cylinders 15 are respectively hinged, and the folding hydraulic cylinders 15 are hinged to the folding crank 12.

[0039] Belt pressing wheels 14 are respectively installed on the middle belt rack 17 and the folding belt rack 10. The functions of the belt pressing wheels 14 are, first, to prevent the belt from running off and jumping due to the short belt during belt operation, and second, to press the belt when folding the belt to prevent it from falling off.

[0040] Due to the limited width of the underground roadway, most of the connections between roadways are vertically connected. Because the roadway is narrow, the turning radius at this vertical connection is very small. When long equipment, steel pipes, rails and other objects are transported from one roadway to another vertical roadway, due to the very small turning radius at the vertical connection, they cannot be transported across the vertical connection of the roadway, and the length of the transported object must be shortened. When the foldable and movable transitional conveyor belt device of the present invention is working or not in use, the middle belt rack 17 and the folding belt rack 10 are in straight butt joint.

[0041] When moving and transporting the overall transitional conveyor belt device from one roadway to another vertical roadway underground, in order to facilitate turning, the two ends of the foldable and movable transitional conveyor belt device of the present invention can be folded. The operation steps are as follows:

[0042] A four-bar mechanism is formed by the folding crank 12, the folding hinge 13, the folding hydraulic cylinder 15 and the folding belt rack 10. Therefore, the folding hydraulic cylinder 15 can be operated to push the folding crank 12, and the folding crank 12 drives the folding belt rack 10. The folding belt rack 10 rotates around the axis of the folding hinge 13 to turn it over. After such turning over, the included angle between the folding belt rack 10 and the intermediate belt rack 17 can be less than 90° or parallel, thus achieving the folding purpose. To prevent the upper belt from falling off, the belt pressing wheel 14 comes into play;

[0043] When the foldable and movable transitional conveyor belt device moves to the position, the folding hydraulic cylinder 15 can be operated to pull the folding crank 12, and the folding crank 12 drives the folding belt rack 10. The folding belt rack 10 rotates around the axis of the folding hinge 13 to reverse it. In this way, the folding belt rack 10 unfolds and returns to its original position. Finally, the folding belt rack 10 is linearly butted with the intermediate belt rack 17.

[0044] The functions of the foldable and movable transitional conveyor belt device of the present utility model are as follows: First, when driving temporary roadways and short roadways, since the conditions for installing a fixed belt conveyor cannot be met, if a scraper conveyor is used, it is relatively bulky, difficult to transport, time-consuming and laborious to install, with high labor intensity of workers and low work efficiency. Second, it is used for the connection and transportation between fixed belt conveyors, between fixed belt conveyors and scraper conveyors, and between a fully mechanized heading machine and a continuous miner and a fixed belt conveyor or a scraper conveyor. All of the above problems can be solved by the transitional belt.

[0045] In this embodiment, as Figure 2 shown, in a coal mine underground roadway, when transferring the foldable and movable transitional conveyor belt device from one roadway to another roadway, the steps are as follows:

[0046] Operate the folding hydraulic cylinder 15 to pull the folding crank 12; the folding crank 12 drives the folding belt rack 10, and the folding belt rack 10 rotates around the axis of the folding hinge 13 to turn the folding belt rack 10 inwards until it is parallel to the intermediate belt rack 17 to complete the folding. During this period, the belt pressing wheel 14 presses the upper layer of the flame-retardant belt 18 to ensure that the upper belt does not fall off during the inward folding and turning of the folding belt rack 10.

[0047] After the folding is completed, the foldable and movable transitional conveyor belt device can be moved to the required position (the power for movement can be manual, electric, hydraulic, etc.). After reaching the position, operate the folding hydraulic cylinder 15 to pull the folding crank 12; the folding crank 12 drives the folding belt rack 10, and the folding belt rack 10 rotates around the axis of the folding hinge 13 (in the reverse direction compared to when folding), and the folding belt rack 10 unfolds outward until the folding belt rack 10 is in a straight-line butt joint with the middle belt rack 17, so that the folding belt rack 10 returns to its original position. The above is a complete moving working process. At the same time, through folding, the problem of a small turning radius at the 90° roadway connection when moving equipment with a large length is also solved.

[0048] In this embodiment, during the use of the transitional conveyor belt, due to the limited roadway width, most of them are no more than 6 meters. For other transportation equipment (such as scraper conveyors and ordinary conveyor belts), when moving horizontally from one side of the roadway to the other side, it is not easy to adjust the position, and all rely on manual labor or the use of hydraulic jacks. During this working process, the labor intensity is high, the work efficiency is low, and accidents such as squeezing and pressing people are likely to occur.

[0049] If the foldable and movable transitional conveyor belt device of the present utility model is used, the above problems can be overcome. As Figure 3 shown, for the foldable and movable transitional conveyor belt device that moves horizontally as a whole in the underground roadway of a mine, due to the limited roadway width and the relatively large length of the foldable and movable transitional conveyor belt device, it is generally not easy to adjust the position. If the lifting hydraulic cylinder 8 is used, this problem can be solved.

[0050] For example, when adjusting the position to the right (the right side of the roadway), after using the lifting hydraulic cylinder 8 to lift the entire rotating chassis 2 and the folding belt mechanism on the rotating chassis 2, rotate the movable chassis 1 so that the movable chassis 1 is perpendicular to the middle belt rack 17 and perpendicular to the roadway wall. Then operate the lifting hydraulic cylinder 8 to lower the overall transitional conveyor belt device, and push (manual, electric, hydraulic, etc.) the movable chassis 1 closer to the right side; after reaching the position, use the lifting hydraulic cylinder 8 to lift the entire rotating chassis 2 and the folding belt mechanism on the rotating chassis 2 again, rotate the movable chassis 1 to restore its original position, and finally operate the lifting hydraulic cylinder 8 to lower the entire rotating chassis 2 and the folding belt mechanism on the rotating chassis 2, and a complete adjustment working cycle is completed; when moving to the left side, operate according to this step as well.

[0051] If it is necessary to repair and replace the movable chassis 1 part or its accessories such as mine wheels, it can be achieved after using the lifting hydraulic cylinder 8 to lift the entire rotating chassis 2 and the folding belt mechanism on the rotating chassis 2.

[0052] In this embodiment, as Figure 4As shown, during use, the foldable and movable transitional conveyor belt device of the present utility model and the foldable and movable transitional conveyor belt device are overlapped with each other front and back. After multiple devices are in place, they are arranged in a straight line front and back, and then the adjustment starts. The steps are as follows: ⑴ Operate the adjustment hydraulic cylinder 7 of the first device to raise the end with the driving wheel installed, and the end with the tail wheel installed will drop;

[0053] ⑵ First, operate the adjustment hydraulic cylinder 7 of the second device to raise the end with the driving wheel installed, and the end with the tail wheel installed will drop. After adjusting the height, move the second device forward so that the end with the driving wheel installed is overlapped on the tail wheel of the first device. And so on, the third device, the fourth device, etc. are all operated in this way, and multiple devices can be overlapped according to the above operation method.

[0054] The multiple overlapped devices can cooperate with other transportation devices such as scraper conveyors, fixed conveyor belts, and mine cars front and back, and can thus achieve transitional transfer and transportation of coal, gangue, ore, etc.

[0055] The present utility model is simple and easy to operate, has a simple system, is flexible to use, has a large transportation volume, and is convenient for quick assembly, disassembly, and movement, etc. The present utility model solves the problems existing in the above-mentioned methods in short-distance transportation in underground mines, such as the inability to install fixed conveyor belts, the installation of very heavy scraper conveyors, or the complete dependence on manual transfer using mine cars.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A foldable and portable transitional conveyor belt device, characterized in that, It includes a movable chassis, a rotating chassis and a folding belt mechanism. The rotating chassis is rotatably connected to the movable chassis. The folding belt mechanism is arranged on the top of the rotating chassis, and a lifting hydraulic cylinder is provided at the bottom of the rotating chassis.

2. The foldable and portable transitional conveyor belt device according to claim 1, characterized in that The movable chassis includes a mine car chassis, a rubber wheel chassis or a crawler chassis.

3. The foldable and portable transitional conveyor belt device according to claim 1, characterized in that, The rotating chassis is provided with a rotating shaft, and the rotating chassis is rotatably connected to the movable chassis through the rotating shaft.

4. The foldable and movable transitional conveyor belt device according to claim 1, characterized in that, The folding belt mechanism includes an intermediate belt rack and a folding belt rack. The folding belt rack is arranged at both ends of the intermediate belt rack through folding hinges.

5. The foldable and portable transitional conveyor belt device according to claim 4, wherein, A fixed bracket, a limit bracket and an adjusting hydraulic cylinder are provided between the intermediate belt rack and the rotating chassis.

6. The foldable and portable transitional conveyor belt device according to claim 5, characterized in that, The folding belt rack includes a folding mechanism. The folding mechanism includes a folding hydraulic cylinder and a folding crank. The folding crank is arranged between the intermediate belt rack and the folding belt rack. The folding hydraulic cylinder is hinged to the intermediate belt rack, and the folding hydraulic cylinder is hinged to the folding crank.

7. The foldable and portable transitional conveyor belt device according to claim 6, wherein, A driving roller is installed on the folding belt rack near one end of the adjusting hydraulic cylinder, and a driven roller is installed on the folding belt rack at the other end.

8. The collapsible and portable transitional conveyor belt device according to claim 7, wherein, A belt tensioner is provided at the end of the folding belt rack where the driven roller is installed.

9. The foldable and portable transitional conveyor belt device according to claim 6, wherein, A number of straight supporting wheels are provided on both sides of the bottom of the intermediate belt rack, and a number of three-section supporting wheels are provided on the top of the intermediate belt rack.

10. The foldable and portable transitional conveyor belt device according to claim 9, characterized in that, Belt pressing wheels are respectively installed on the intermediate belt rack and the folding belt rack.

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