Belt conveyor non-stop extension device

Abstract

The present invention relates to a device for extending a belt conveyor without stopping, which includes a fixed frame of the belt conveyor, a self-propelled tailstock, and a detachable deviation rectifying frame. The detachable deviation rectifying frame is arranged between the fixed frame of the belt conveyor and the self-propelled tailstock; the detachable deviation rectifying frame includes telescopic legs, a horizontal frame, universal wheels, a first V-shaped idler set, a deviation rectifying idler set, and lower idlers; universal wheels are installed at the bottom ends of the telescopic legs, and the horizontal frame is installed at the top ends of the telescopic legs. The first V-shaped idler set and the deviation rectifying idler set are installed on the horizontal frame; the deviation rectifying idler set includes a curved rail, a second V-shaped idler set, and pulleys; pulleys are installed below the second V-shaped idler set, and the pulleys are movably arranged on the curved rail. The detachable deviation rectifying frame not only serves as an extension of the conveyor frame but also has the function of deviation rectification. While extending the frame of the belt conveyor without stopping, it can minimize the deviation problem of the belt of the belt conveyor during operation, reduce accidental shutdown conditions, and improve production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of coal mining, and particularly relates to a device for extending a belt conveyor without stopping the machine. Background Art

[0002] At present, at the tunneling face, the roadheader, the self-advancing tail of the roadheader and the transfer loader of the roadheader are overlapped. The self-advancing tail can reduce the number of times of pulling the conveyor belt and realize the mechanical extension of the tail of the belt conveyor. However, in the actual use process, when the self-advancing tail moves forward, the fixed end of the belt conveyor is separated from the self-advancing tail. When a certain distance is vacated between the self-advancing tail and the belt conveyor, in the existing technology, it is necessary to stop the machine to install the conveyor frame to avoid tearing the conveyor belt. When installing the conveyor frame, the tunneling face cannot operate normally, and the shutdown and extension will cause the machine to fail to work properly during the starting stage, resulting in waste of time and economic losses.

[0003] Due to factors such as the harsh working environment, long working hours, and uneven quality and volume of transported coal in the fully mechanized tunneling face, the idlers of the belt conveyor are prone to damage. To ensure normal working efficiency, reduce the low tunneling efficiency caused by belt deviation, and also cause the transported materials to spill or even catch fire due to friction. In serious cases, it will cause problems of casualties and property losses. Therefore, it is necessary to provide a device for extending a belt conveyor without stopping the machine that can solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for extending a belt conveyor without stopping the machine, which can extend the conveyor frame without stopping the machine and also has an automatic deviation correction function.

[0005] A device for extending a belt conveyor without stopping the machine includes a fixed frame of the belt conveyor, a self-advancing tail, and a detachable and adjustable deviation correction frame, and the detachable and adjustable deviation correction frame is arranged between the fixed frame of the belt conveyor and the self-advancing tail;

[0006] The detachable and adjustable deviation correction frame includes telescopic legs, a horizontal frame, universal wheels, a first V-shaped idler group, a deviation correction idler group, and lower idlers; the universal wheels are installed at the bottom ends of the telescopic legs, the horizontal frame is installed at the top ends of the telescopic legs, and the first V-shaped idler group and the deviation correction idler group are installed on the horizontal frame;

[0007] The deviation correction idler group includes a curved rail, a second V-shaped idler group, and pulleys; the pulleys are installed below the second V-shaped idler group, and the pulleys are movably arranged on the curved rail.

[0008] Preferably, it further includes a belt lifting robotic arm.

[0009] Preferably, the belt-picking robotic arm includes a base, a first rotary motor, a large arm, a second rotary motor, a small arm, a third rotary motor, and a roller. The roller is configured to hold up the conveyor belt.

[0010] Preferably, the base is movably arranged on the slide rail.

[0011] Preferably, the first rotary motor drives the large arm to rotate.

[0012] Preferably, the second rotary motor is arranged between the large arm and the small arm; when the second rotary motor works, it drives the small arm to rotate; the third rotary motor is arranged between the small arm and the roller, and the third rotary motor drives the roller to rotate.

[0013] Preferably, four groups of the pulleys are installed below the second V-shaped roller group.

[0014] Preferably, the lower roller is connected to the horizontal frame by bolts.

[0015] Preferably, the telescopic leg and the universal wheel are detachably connected by a pin shaft.

[0016] Preferably, the detachable and adjustable deviation rectifying frame further includes a telescopic motor and a lead screw. The telescopic motor and the lead screw drive the telescopic leg to move up and down.

[0017] To achieve this purpose, the present invention adopts the following technical solutions:

[0018] The beneficial effect of the belt conveyor non-stop extension device of the present invention is that the detachable and adjustable deviation rectifying frame not only serves as an extension of the conveyor frame but also has the function of deviation rectification. When the present invention extends the frame of the belt conveyor without stopping, it can, to the greatest extent, reduce the deviation problem of the belt of the belt conveyor during operation, reduce accidental shutdown conditions, and greatly improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a side view of the belt conveyor non-stop extension device of the embodiment of the present invention;

[0020] Figure 2 is a three-dimensional view of the belt-picking robotic arm of the embodiment of the present invention;

[0021] Figure 3 is a three-dimensional view of the belt conveyor non-stop extension device of the embodiment of the present invention;

[0022] Figure 4 is a three-dimensional view of the detachable and adjustable deviation rectifying frame of the embodiment of the present invention;

[0023] Figure 5 is a partial view of the deviation rectifying roller group of the embodiment of the present invention;

[0024] Figure 6 Yes Figure 5 It is a sectional view at D-D.

[0025] The names and labels of the components in the figure are as follows:

[0026] Belt conveyor fixed frame (1), belt picking robotic arm (2), detachable deviation rectifying frame (3), self-propelled tailstock (4), base (201), first rotating motor (202), boom (203), second rotating motor (204), forearm (205), third rotating motor (206), idler (207), slide rail (208), telescopic support leg (301), horizontal frame (302), universal wheel (303), first V-type idler group (304), deviation rectifying idler group (305), lower idler (306), telescopic motor (307), lead screw (308), curved rail (3051), second V-type idler group (3052), pulley (3053). Specific implementation mode

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0028] As Figure 1 shown, this embodiment discloses a device for extending a belt conveyor without stopping the machine. The structure and working process of the device for extending a belt conveyor without stopping the machine are as follows:

[0029] Step 1: The belt conveyor starts, the driving roller drives the belt to rotate and starts to work. The self-propelled tailstock 4 moves forward synchronously with the tunneling machine. After a certain distance is vacated between the self-propelled tailstock 4 and the fixed end of the belt conveyor, the belt picking robotic arm 2 moves along the slide rail 208 to the fixed end of the belt conveyor. As Figure 1 shown, in this application, the fixed end of the belt conveyor fixed frame 1 is the fixed end of the belt conveyor.

[0030] As Figure 2As shown in the figure, the picking belt manipulator 2 includes a base 201, a first rotating motor 202, a large arm 203, a second rotating motor 204, a small arm 205, a third rotating motor 206, and a supporting roller 207. The first rotating motor 202 is installed on the base 201. The base 201 is movably arranged on the slide rail 208 and can move along the slide rail 208. The first rotating motor 202 drives the large arm 203 to rotate. A second rotating motor 204 is arranged between the large arm 203 and the small arm 205. When the second rotating motor 204 works, it drives the small arm 205 to rotate. A third rotating motor 206 is arranged between the small arm 205 and the supporting roller 207. The third rotating motor 206 drives the supporting roller 207 to rotate, so that the supporting roller 207 is placed under the conveyor belt. At this time, the supporting roller 207 picks up the conveyor belt and plays a supporting role for the conveyor belt.

[0031] Step two:

[0032] As Figure 4 shown, the detachable deviation rectifying frame 3 includes telescopic legs 301, a horizontal frame 302, universal wheels 303, a first V-shaped supporting roller group 304, a deviation rectifying roller group 305, a lower supporting roller 306, a telescopic motor 307, and a lead screw 308. The telescopic legs 301 and the universal wheels 303 are detachably connected by a pin shaft. The lower supporting roller 306 is connected to the horizontal frame 302 by bolts.

[0033] As Figure 3 shown, when a certain distance is left between the self-propelled tail 4 of the belt conveyor and the fixed end of the belt conveyor as Figure 3 , after all the telescopic legs 301 of the detachable deviation rectifying frame 3 are retracted, the horizontal frame 302 is lower than the horizontal plane of the lower belt of the belt conveyor. After the detachable deviation rectifying frame 3 is pushed between the fixed frame 1 of the belt conveyor and the self-propelled tail 4, the pin shaft used to connect the universal wheel 303 and the telescopic leg 301 is pulled out. At this time, the detachable deviation rectifying frame 3 is fixed to the ground.

[0034] Step three:

[0035] The telescopic legs 301 of the detachable deviation rectifying frame 3 extend. When the horizontal frame 302 of the detachable deviation rectifying frame 3 is slightly higher than the upper surface of the conveyor belt, the height of the telescopic legs 301 is positioned. A group of first V-shaped supporting roller groups 304 and a group of deviation rectifying roller groups 305 are respectively installed on the horizontal frame 302. Then, the telescopic legs 301 are adjusted to continue to extend. When the horizontal frame 302 of the detachable deviation rectifying frame 3 and the horizontal frame of the fixed frame 1 of the belt conveyor are on the same plane, the height of the telescopic legs 301 is positioned. At this time, the first V-shaped supporting roller group 304, the deviation rectifying roller group 305, and the lower supporting roller 306 work normally.

[0036] As Figure 5 and Figure 6As shown, the deviation rectifying idler set 305 includes a bent rail 3051, a second V-shaped idler set 3052, and pulleys 3053. Four groups of pulleys 3053 are installed below the second V-shaped idler set 3052, and the four groups of pulleys 3053 can slide along the bent rail 3051.

[0037] When the belt conveyor runs off track in the middle section, the deviation rectifying idler set 305 moves along the bent rail 3051 under the external force of the belt. At this time, the belt of the belt conveyor is still within the center of the deviation rectifying idler set 305. When the external force of the belt disappears, under the action of the deviation rectifying idler set 305, the belt is brought back to the center position of the belt conveyor, achieving the purpose of deviation rectification.

[0038] Step 4: Both ends of the horizontal frame 302 of the detachable deviation rectifying frame 3 have pin holes, and the fixed frame 1 of the belt conveyor can be fixed to the horizontal frame 302 of the detachable deviation rectifying frame 3 through the pin holes with pins. After the detachable deviation rectifying frame 3 works normally, the belt picking robotic arm 2 retracts to prepare for the next belt picking operation.

[0039] Step 5: Whenever the self-propelled tail 4 and the fixed frame 1 of the belt conveyor leave a distance equal to that of a detachable deviation rectifying frame 3, repeating the above steps can achieve the extension of the conveyor frame without stopping the belt conveyor.

[0040] The detachable deviation rectifying frame 3 of this embodiment not only serves as an extension of the conveyor frame but also has the function of deviation rectification. While extending the frame of the belt conveyor without stopping, this embodiment minimizes the problem of the belt of the belt conveyor running off track during operation and reduces unexpected shutdown situations. It greatly improves production efficiency.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A method of using a device for extending a belt conveyor without stopping. The device for extending a belt conveyor without stopping includes a belt conveyor fixed frame, a self - moving tail, and a detachable deviation - correcting frame. The detachable deviation - correcting frame is arranged between the belt conveyor fixed frame and the self - moving tail; The detachable deviation - correcting frame includes telescopic legs, a horizontal frame, universal wheels, a first V - type idler set, a deviation - correcting idler set, and lower idlers; the universal wheels are installed at the bottom ends of the telescopic legs, the horizontal frame is installed at the top ends of the telescopic legs, and the first V - type idler set and the deviation - correcting idler set are installed on the horizontal frame; The deviation-correcting idler set includes a curved rail, a second V-shaped idler set, and a pulley; the pulley is installed below the second V-shaped idler set, and the pulley is movably arranged on the curved rail; it further includes a belt-picking robotic arm, the belt-picking robotic arm includes a base, a first rotating motor, a large arm, a second rotating motor, a small arm, a third rotating motor, and an idler, the idler is configured to support the conveyor belt, and the base is movably arranged on the slide rail, and is characterized in that, It includes: S1. Start the belt conveyor. The driving roller drives the belt to rotate and start working. The self - moving tail moves forward synchronously with the roadheader. After a certain distance is vacated between the self - moving tail and the fixed end of the belt conveyor, the belt - picking robotic arm moves along the slide rail to the fixed end of the belt conveyor; the first rotating motor drives the boom to rotate; there is a second rotating motor between the boom and the forearm; the second rotating motor works to drive the forearm to rotate; there is a third rotating motor between the forearm and the idler; the third rotating motor drives the idler to rotate, so that the idler is placed under the conveyor belt. At this time, the idler picks up the conveyor belt and plays a supporting role for the conveyor belt; S2. After a certain distance is vacated between the self - moving tail and the fixed end of the belt conveyor, fully retract the telescopic legs of the detachable deviation - correcting frame so that the horizontal frame is lower than the horizontal plane of the lower belt of the belt conveyor; push the detachable deviation - correcting frame between the belt conveyor fixed frame and the self - moving tail, and then pull out the pin shaft used to connect the universal wheel and the telescopic leg. At this time, fix the detachable deviation - correcting frame to the ground; S3. Extend the telescopic legs of the detachable deviation - correcting frame. When the horizontal frame of the detachable deviation - correcting frame is slightly higher than the upper surface of the conveyor belt, position the height of the telescopic legs; install a set of first V - type idler sets and a set of deviation - correcting idler sets on the horizontal frame respectively; then adjust the telescopic legs to continue extending. When the horizontal frame of the detachable deviation - correcting frame is in the same plane as the horizontal frame of the belt conveyor fixed frame, position the height of the telescopic legs; at this time, the first V - type idler set, the deviation - correcting idler set, and the lower idlers work normally; S4. There are pin holes at both ends of the horizontal frame of the detachable deviation - correcting frame. Fix the horizontal frame of the belt conveyor fixed frame and the detachable deviation - correcting frame through the pin holes with pin shafts; after the detachable deviation - correcting frame works normally, retract the belt - picking robotic arm and prepare for the next belt - picking work; S5. Whenever a distance equal to the length of a detachable deviation - correcting frame is vacated between the self - moving tail and the belt conveyor fixed frame, repeat the above steps to realize the extension of the conveyor frame of the belt conveyor without stopping.

2. The usage method of the belt conveyor non-stop extension device according to claim 1, characterized in that: Four sets of the pulleys are installed below the second V - type idler set.

3. The usage method of the belt conveyor non-stop extension device according to claim 1, characterized in that: The lower idlers are connected to the horizontal frame by bolts.

4. The usage method of the belt conveyor non-stop extension device according to claim 1, characterized in that: The telescopic legs and the universal wheels are detachably connected by pin shafts.

5. The method for using the device for continuously extending a belt conveyor according to claim 1, characterized in that: The detachable deviation - correcting frame further includes a telescopic motor and a lead screw, and the telescopic motor and the lead screw drive the telescopic legs to lift and lower.

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