Foldable transition conveying belt conveyor device convenient to move and using method thereof

Abstract

The invention provides a foldable transition conveying belt conveyor device convenient to move and a using method thereof.The foldable transition conveying belt conveyor device convenient to move comprises a movable bottom frame, a rotating chassis and a foldable belt mechanism, the rotating chassis is rotationally connected to the movable bottom frame, and the foldable belt mechanism is arranged at the top of the rotating chassis; and a lifting hydraulic cylinder is arranged at the bottom of the rotating chassis. By means of folding and rotating mechanisms, the space and efficiency limitation of traditional conveying equipment when the traditional conveying equipment is used underground a mine 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 invention relates to the technical field of belt conveyors, and in particular to a foldable and movable transition conveyor belt conveyor device and a use method thereof. Background Art

[0002] In underground mine operations, due to the narrowness and complexity of the tunnels, conventional transportation equipment such as fixed belt conveyors and scraper conveyors are difficult to meet temporary and short-distance transportation needs. Traditional equipment is often bulky and complex to install, resulting in low transportation efficiency, large installation and maintenance workload, and safety risks in operation. Therefore, a transportation solution with flexible structure, easy mobility and rapid deployment is urgently needed. Summary of the invention

[0003] The purpose of the present invention is to provide a foldable and portable transition conveyor belt device and its use method to solve the efficiency and safety problems in short-distance transportation in mines. The device is particularly suitable for mine tunnels. The folding mechanism makes the belt conveyor more flexible in narrow spaces. At the same time, the hydraulic adjustment system can achieve rapid adjustment of height and direction.

[0004] According to one purpose of the present invention, the present invention provides a foldable and movable transition conveyor belt device, including a movable frame, a rotating chassis and a folding belt mechanism, wherein the rotating chassis is rotatably connected to the movable frame, 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.

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

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

[0007] Furthermore, the folding belt mechanism comprises an intermediate belt frame and a folding belt frame, and the folding belt frame is arranged at two ends of the intermediate belt frame through folding hinges.

[0008] Furthermore, a fixing bracket, a limiting bracket and an adjusting hydraulic cylinder are provided between the intermediate belt frame and the rotating chassis.

[0009] Furthermore, the folding belt frame includes a folding mechanism, which includes a folding hydraulic cylinder and a folding crank, the folding crank is arranged between the middle belt frame and the folding belt frame, the folding hydraulic cylinder is hingedly connected to the middle belt frame, and the folding hydraulic cylinder is hingedly connected to the folding crank.

[0010] Furthermore, a driving roller is installed on the folding belt frame near one end of the adjusting hydraulic cylinder, a passive roller is installed on the folding belt frame at the other end, and a belt tensioner is provided at the end of the folding belt frame on which the passive roller is installed.

[0011] Furthermore, a plurality of straight supporting wheels are provided on both sides of the bottom of the intermediate belt frame, and a plurality of three-section supporting wheels are provided on the top of the intermediate belt frame.

[0012] Furthermore, belt pressure wheels are respectively installed on the middle belt frame and the folding belt frame.

[0013] The method for using the foldable and movable transition conveyor belt device comprises the following steps:

[0014] S1, folding and unfolding:

[0015] The folding hydraulic cylinder pulls the folding crank, and the folding crank drives the folding belt frame, and the folding belt frame rotates around the axis of the folding hinge, so that the folding belt frame flips inward to be parallel to the middle belt frame, and the folding is completed;

[0016] After it is in place, the folding hydraulic cylinder pulls the folding crank, and the folding crank drives the folding belt frame, and the folding belt frame rotates around the axis of the folding hinge, and the folding belt frame unfolds outward until the folding belt frame and the middle belt frame are connected in a straight line, so that the folding belt frame returns to its original position;

[0017] S2, translation:

[0018] When adjusting the position, the lifting hydraulic cylinder lifts the entire rotating chassis and the folding belt mechanism on the rotating chassis, rotates the movable chassis to make the movable chassis vertical to the middle belt frame, and the lifting hydraulic cylinder drops the entire device to push the movable chassis closer to the side wall of the laneway;

[0019] After it is in place, the lifting hydraulic cylinder lifts the entire rotating chassis and the folding belt mechanism on the rotating chassis, rotates the movable chassis to restore it to its original position, and finally the lifting hydraulic cylinder drops the entire rotating chassis and the folding belt mechanism on the rotating chassis, and an adjustment work cycle is completed.

[0020] The technical solution of the present invention effectively overcomes the space and efficiency limitations faced by traditional transportation equipment when used underground in mines through a folding and rotating mechanism. The folding mechanism makes the belt conveyor more flexible to deploy in a narrow space. At the same time, the hydraulic adjustment system can achieve rapid adjustment of height and direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure of the folded state of an embodiment of the present invention;

[0024] Figure 3 A side view of an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure when the embodiments of the present invention are used in combination;

[0026] 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 support wheel; 10. folding belt rack; 11. driving roller; 12. folding crank; 13. folding hinge; 14. belt pressure wheel; 15. folding hydraulic cylinder; 16. three-section support wheel; 17. middle belt rack; 18. flame retardant belt; 19. passive roller; 20. belt tensioner. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] 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 indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1

[0031] like Figure 1-Figure 4 As shown,

[0032] A foldable and movable transition conveyor belt device comprises 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.

[0033] In this embodiment, the movable chassis 1 can be in various forms, such as a mine car chassis (four wheels), a rubber wheel chassis (four wheels) or a crawler chassis;

[0034] The rotating chassis 2 is rotatably arranged on the movable chassis 1. The rotating chassis 2 is a rectangular steel plate. A hole is arranged in the middle of the rotating chassis 2. The rotating chassis 2 and the movable chassis 1 are connected via a rotating shaft 3. Positioning pin holes are also arranged on the rotating chassis 2 and the movable chassis 1, respectively. The rotating chassis 2 and the movable chassis 1 can be fixed by arranging fixing pins in the positioning pin holes.

[0035] The rotating shaft 3 can be connected to the movable chassis 1, and the rotating chassis 2 can rotate 360 ​​degrees around the rotating shaft 3, and the rotating drive can be manpower, hydraulic pressure, motor, etc. When the rotation is in place, the rotating chassis 2 and the movable chassis 1 are fixed with a fixing pin 4.

[0036] The folding belt mechanism includes an intermediate belt frame 17. Two fixed brackets 5, two limit brackets 6 and two adjustment hydraulic cylinders 7 arranged side by side are fixed to the top of the rotating chassis 2. The intermediate belt frame 17 is arranged above the rotating chassis 2, and the bottom of the intermediate belt frame 17 is hingedly connected to the top of the fixed bracket 5, the limit bracket 6 and the adjustment hydraulic cylinder 7 respectively.

[0037] The two fixed brackets 5 are used to support the middle belt frame 17 . A connecting hole is provided at the upper end of the fixed bracket 5 . A connecting shaft is provided in the connecting hole. The middle belt frame 17 is hingedly connected to the fixed bracket 5 via the connecting shaft.

[0038] The limit bracket 6 is arranged in the middle of the rotating chassis 2. The two limit brackets 6 are inner and outer sleeve structures. The limit bracket 6 includes an outer sleeve and an inner sleeve. The bottom of the outer sleeve is hingedly connected to the rotating chassis 2. The inner sleeve is slidably arranged inside the outer sleeve and can slide up and down along the outer sleeve. A high-strength spring is fixed to 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 provided at the bottom of the inner sleeve, and the limit pin can prevent the inner sleeve from falling out of the outer sleeve. The functions of the limit bracket 6 are, first, to prevent the belt from swaying left and right when it is running, and second, when the belt frame is adjusted upward in height, it will not be too high due to the limitation of the high-strength spring, so as to prevent the belt head from touching the tunnel roof and the equipment attached to the roof.

[0039] Two adjustment hydraulic cylinders 7 are located at the other side of the rotating chassis 2, the bottoms of the two adjustment hydraulic cylinders 7 are hingedly connected to the top of the rotating chassis 2, and the tops of the adjustment hydraulic cylinders 7 are hingedly connected to the middle belt frame 17. The adjustment hydraulic cylinders 7 are used to adjust the height of the belt frame.

[0040] 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 to facilitate the maintenance and replacement of the mobile chassis 1, to move the entire belt conveyor device horizontally to the left and right, and to stabilize the belt conveyor when it is working.

[0041] In this embodiment, the folding belt mechanism uses the middle belt frame 17 as the base frame. A number of straight support wheels 9 are provided on both sides of the bottom of the middle belt frame 17, and a number of three-section support wheels 16 are provided on the top of the middle belt frame 17. The three-section support wheels 16 are used to support the flame-retardant belt 18.

[0042] A folding belt frame 10 is respectively provided at both ends of the middle belt frame 17 , and the folding belt frame 10 is connected to the middle belt frame 17 via four folding hinges 13 .

[0043] A driving roller 11 is installed on the folding belt frame 10 near one end of the adjustment hydraulic cylinder 7. The driving roller can be driven by an electric roller, a motor gearbox roller, a hydraulic motor, etc., and a passive roller 19 is installed on the folding belt frame 10 at the other end. Two belt tensioners 20 are provided at the end of the folding belt frame 10 equipped with the passive roller 19.

[0044] A folding crank 12 is also provided between the middle belt frame 17 and the folding belt frame 10, and the folding crank 12 is provided correspondingly to the folding hinge 13. Folding hydraulic cylinders 15 are respectively hingedly connected to the two ends of the middle belt frame 17, and the folding hydraulic cylinders 15 are hingedly connected to the folding crank 12.

[0045] Belt pressure wheels 14 are installed on the middle belt frame 17 and the folding belt frame 10 respectively. The belt pressure wheels 14 have the functions of preventing the belt from running out of alignment and jumping due to the short belt when the belt is running, and of pressing the belt when the belt is folded to prevent it from falling off.

[0046] Since the width of underground tunnels is limited, most of the tunnels are vertically connected. Since the tunnels are narrow, the turning radius of the vertical connection is very small. When long equipment, steel pipes, rails and other objects are transported from one tunnel to another vertical tunnel, they cannot be transported through the vertical connection of the tunnels because the turning radius of the vertical connection is very small. Therefore, the length of the transported objects must be shortened. When the foldable and movable transition conveyor belt conveyor device of the present invention is working or not in use, the middle belt frame 17 and the folding belt frame 10 are both straightly connected.

[0047] When the entire transition conveyor belt device is moved from one tunnel to another vertical tunnel underground, in order to facilitate turning, the two ends of the foldable and movable transition conveyor belt device of the present invention can be folded up. The operation steps are as follows:

[0048] The folding crank 12, the folding hinge 13, the folding hydraulic cylinder 15 and the folding belt frame 10 form a four-bar mechanism, so the folding hydraulic cylinder 15 can be operated to push the folding crank 12, and the folding crank 12 drives the folding belt frame 10, and the folding belt frame 10 rotates around the axis of the folding hinge 13 to turn it over. After turning over, the angle between the folding belt frame 10 and the middle belt frame 17 is less than 90° or parallel, so the folding purpose is achieved. In order to prevent the upper belt from falling off, the belt pressure wheel 14 plays a role;

[0049] When the foldable and movable transition 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 frame 10, and the folding belt frame 10 rotates around the axis of the folding hinge 13 to reverse it, so that the folding belt frame 10 is unfolded and restored to its original position, and finally the folding belt frame 10 is directly connected with the middle belt frame 17.

[0050] The functions of the foldable and movable transition conveyor belt conveyor device of the present invention are: first, when excavating temporary tunnels and short tunnels, the conditions for installing a fixed belt conveyor cannot be met. If a scraper conveyor is used, it is relatively heavy, difficult to transport, time-consuming and labor-intensive to install, and the labor intensity of workers is high and the work efficiency is low; second, it is used for connecting and transporting between fixed belt conveyors, between fixed belt conveyors and scraper conveyors, and between a comprehensive excavator and a continuous mining machine and a fixed belt conveyor or a scraper conveyor. The above problems can all be solved by a transition belt.

[0051] In this embodiment, Figure 2 As shown, in a coal mine underground tunnel, when transferring a foldable and movable transition conveyor belt conveyor device from one tunnel to another, the steps are:

[0052] The folding hydraulic cylinder 15 is operated to pull the folding crank 12; the folding crank 12 drives the folding belt frame 10, and the folding belt frame 10 rotates around the axis of the folding hinge 13, so that the folding belt frame 10 is turned inward to be parallel to the middle belt frame 17, and the folding is completed. During this period, the belt pressure wheel 14 presses the upper layer of the flame-retardant belt 18 to ensure that the upper belt will not fall off during the inward folding and turning process of the folding belt frame 10;

[0053] After folding, the foldable and movable transition conveyor belt device can be moved to the desired position (the moving power can be manpower, electricity, hydraulic pressure, etc.). After it is in place, the folding hydraulic cylinder 15 is operated to pull the folding crank 12; the folding crank 12 drives the folding belt frame 10, and the folding belt frame 10 rotates around the axis of the folding hinge 13 (it is reversed relative to folding), and the folding belt frame 10 is unfolded outward until the folding belt frame 10 is directly connected with the middle belt frame 17, so that the folding belt frame 10 is restored to its original position. The above is a complete moving work process. At the same time, through folding, the problem of small turning radius at the 90° lane connection when moving equipment with a longer length is also solved.

[0054] In this embodiment, during the use of the transition conveyor belt conveyor, due to the limited width of the laneway, most of them are no more than 6 meters. Other transportation equipment (such as scraper conveyors, ordinary conveyor belt conveyors) are not easy to adjust their positions when moving horizontally from one side of the laneway to another. They all rely on manpower 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 crushing people are prone to occur.

[0055] If the foldable and movable transition conveyor belt device of the present invention is used, the above problems are overcome. Figure 3As shown, the foldable and movable transition conveyor belt device that can move horizontally left and right in the underground mine tunnel is generally not easy to adjust the position due to the limited tunnel width and the large length of the foldable and movable transition conveyor belt device. This problem can be solved by using a lifting hydraulic cylinder 8.

[0056] For example, when adjusting the position to the right (the right side of the tunnel), the entire rotating chassis 2 and the folding belt mechanism on the rotating chassis 2 are raised by operating the lifting hydraulic cylinder 8, and then the movable chassis 1 is rotated to make the movable chassis 1 perpendicular to the middle belt frame 17 and the vertical tunnel wall, and then the lifting hydraulic cylinder 8 is operated to drop the entire transition transport belt conveyor device, and push (manpower, electricity, hydraulics, etc.) the movable chassis 1 to the right side; after reaching the position, the lifting hydraulic cylinder 8 is used to lift the entire rotating chassis 2 and the folding belt mechanism on the rotating chassis 2, and the movable chassis 1 is rotated to restore it to its original position, and finally the lifting hydraulic cylinder 8 is operated to drop the entire rotating chassis 2 and the folding belt mechanism on the rotating chassis 2, and one adjustment work cycle is completed; if moving to the left side, follow these steps.

[0057] If the mobile chassis 1 part or its attached parts such as mine wheels are to be repaired and replaced, it can be realized by lifting the integral rotating chassis 2 and the folding belt mechanism on the rotating chassis 2 with the lifting hydraulic cylinder 8.

[0058] In this embodiment, Figure 4 As shown, during use, the foldable and movable transition conveyor belt conveyor device of the present invention is 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 adjustment is started. The steps are: (1) 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 fall;

[0059] (2) First, operate the adjustment hydraulic cylinder 7 of the second device to raise the end with the driving wheel, and the end with the tail wheel will drop. After adjusting the height, move the second device forward so that the end with the driving wheel is overlapped on the tail wheel of the first device. By analogy, the third and fourth devices are operated in this way. Multiple devices can be overlapped according to the above operation method.

[0060] Multiple connected devices can be coordinated with other transportation equipment such as scraper conveyors, fixed belt conveyors, mine cars, etc. to realize the transitional transshipment of coal, gangue, ore, etc.

[0061] The invention is easy to operate, has a simple system, is convenient to use, has a large transport capacity, and is easy to quickly assemble, disassemble, and move. The invention solves the problems existing in the above methods in short-distance transportation in mines, such as the inability to install fixed belts, or installing very heavy scraper transportation, or relying entirely on manual transportation with mine cars.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, 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 invention.

Claims

1. A foldable and portable transition conveyor belt device, characterized in that: The utility model comprises a movable base frame, a rotating base plate and a folding belt mechanism. The rotating base plate is rotatably connected to the movable base frame. The folding belt mechanism is arranged on the top of the rotating base plate. A lifting hydraulic cylinder is arranged on the bottom of the rotating base plate.

2. The foldable and portable transition conveyor belt device according to claim 1 is characterized in that: The movable underframe includes a mine car underframe, a rubber wheel underframe or a crawler track underframe.

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

4. The foldable and portable transition conveyor belt device according to claim 1 is characterized in that: The folding belt mechanism comprises a middle belt frame and a folding belt frame, and the folding belt frame is arranged at two ends of the middle belt frame through folding hinges.

5. The foldable and portable transition conveyor belt device according to claim 4 is characterized in that: A fixing bracket, a limiting bracket and an adjusting hydraulic cylinder are arranged between the intermediate belt frame and the rotating chassis.

6. The foldable and portable transition conveyor belt device according to claim 5 is characterized in that: The folding belt frame includes a folding mechanism, which includes a folding hydraulic cylinder and a folding crank. The folding crank is arranged between the middle belt frame and the folding belt frame. The folding hydraulic cylinder is hingedly connected to the middle belt frame, and the folding hydraulic cylinder is hingedly connected to the folding crank.

7. The foldable and portable transition conveyor belt device according to claim 6 is characterized in that: A driving roller is installed on the folding belt frame near one end of the adjusting hydraulic cylinder, and a passive roller is installed on the folding belt frame at the other end. A belt tensioner is provided at the end of the folding belt frame on which the passive roller is installed.

8. The foldable and portable transition conveyor belt device according to claim 6 is characterized in that: A plurality of straight supporting wheels are arranged on both sides of the bottom of the middle belt frame, and a plurality of three-section supporting wheels are arranged on the top of the middle belt frame.

9. The foldable and portable transition conveyor belt device according to claim 8, characterized in that: Belt pressure wheels are respectively installed on the middle belt frame and the folding belt frame.

10. The method for using the foldable and portable transition conveyor belt device according to claim 6, characterized in that: The steps include: S1. Folding and unfolding: The folding hydraulic cylinder pulls the folding crank, and the folding crank drives the folding belt frame, and the folding belt frame rotates around the axis of the folding hinge, so that the folding belt frame flips inward to be parallel to the middle belt frame, and the folding is completed; After it is in place, the folding hydraulic cylinder pulls the folding crank, and the folding crank drives the folding belt frame, and the folding belt frame rotates around the axis of the folding hinge, and the folding belt frame unfolds outward until the folding belt frame and the middle belt frame are connected in a straight line, so that the folding belt frame returns to its original position; S2, translation: When adjusting the position, the lifting hydraulic cylinder lifts the entire rotating chassis and the folding belt mechanism on the rotating chassis, rotates the movable chassis to make the movable chassis vertical to the middle belt frame, and the lifting hydraulic cylinder drops the entire device to push the movable chassis closer to the side wall of the laneway; After it is in place, the lifting hydraulic cylinder lifts the entire rotating chassis and the folding belt mechanism on the rotating chassis, rotates the movable chassis to restore it to its original position, and finally the lifting hydraulic cylinder drops the entire rotating chassis and the folding belt mechanism on the rotating chassis, and an adjustment work cycle is completed.

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