Length-variable belt storage device for telescopic belt conveyor

Abstract

The utility model provides a variable-length belt storage device for a telescopic belt conveyor. The variable-length belt storage device comprises a conveyor rack, a driving mechanism, a belt storage bin fixed end support assembly, a track, a tensioning trolley, a movable tensioning winch mechanism and a plurality of towing trolleys. The driving mechanism is arranged at the front end of the conveyor rack and used for driving the conveyor belt to rotate. The belt storage bin fixing end support assembly is arranged behind the driving mechanism. The towing trolleys are slidably arranged on the track, located at the rear end of the belt storage bin fixed end support assembly and used for slidably supporting a conveyor belt; the tensioning trolley is movably arranged on the track and used for tensioning a conveyor belt. The movable tensioning winch mechanism is arranged at the rear end of the track in a sliding mode and used for tensioning the tensioning trolley. According to the device, the length of the belt storage device can be changed at will under the condition that the towing trolley is not dismantled or added, the labor intensity is reduced, and the coal mining period is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of conveyors, and more particularly to a variable length belt storage device for telescopic belt conveyors. BACKGROUND

[0002] When a coal mine is being mined or excavated, the tail of the belt conveyor needs to be withdrawn or advanced along the roadway, at which time the belt is shortened or extended. Therefore, a belt storage device is required during design. The mounting frame of the current belt storage device is fixed in length. However, when a large telescopic belt conveyor is initially installed in an excavation roadway, a long initial distance is required, which results in the use of only a small belt conveyor combined with a shuttle vehicle for transfer during initial excavation. The conveyor needs to be disassembled and assembled constantly, which increases the labor intensity of the workers. Similarly, in a coal mining roadway, the lengths of the head drive, belt storage device, and leg transition section cannot be changed. When the telescopic conveyor is retracted to about 150 meters, it cannot be shortened further. At this time, the coal mining face is still a long distance from the standard stop line, and the coal mine needs to disassemble the original conveyor and replace it with a small belt conveyor structure shuttle vehicle for transfer to continue coal mining, which increases labor intensity and costs. Alternatively, the coal mining operation can be abandoned directly, which wastes coal resources.

[0003] An invention patent with the authorization announcement number CN113928799B discloses a belt storage bin, which includes a body and a wheel assembly. The wheel assembly is arranged at the bottom of the body and is provided in multiple numbers. The wheel assemblies are arranged at intervals, and each wheel assembly has a first position and a second position. In the first position, the wheel assembly is separated from the ground, and in the second position, the wheel assembly is in contact with the ground. This belt storage bin can reduce resistance when the conveyor is retracted to the short stop line, thereby preventing the frame on the body from deforming and cracking, and achieving rapid walking. However, the tensioning mechanism in the belt storage bin does not have a moving function, which results in the length of the belt storage bin not being able to change. UTILITY MODEL CONTENTS

[0004] In order to enable the telescopic belt conveyor to change the length of the belt storage device arbitrarily without disassembly or additional belt towing vehicles, the utility model adopts the following technical scheme: a variable length belt storage device for a telescopic belt conveyor, which includes a conveyor frame, a drive mechanism, a belt storage bin fixed end support assembly, a track, a tensioning trolley, a movable tensioning winch mechanism, and a plurality of belt towing vehicles.

[0005] The drive mechanism is arranged at the front end of the conveyor frame and is used to drive the conveyor belt to rotate.

[0006] The belt storage bin fixed end support assembly is arranged behind the drive mechanism and is used to fix and support the conveyor belt.

[0007] A plurality of said tow trolley is slidingly arranged on the track and located at the rear end of the fixed end support assembly of the belt storage bin, for slidingly supporting the conveyor belt;

[0008] Said tensioning trolley is movably arranged on the track, for tensioning the conveyor belt;

[0009] Said movable tensioning winch mechanism is slidingly arranged at the rear end of the track, for tensioning the tensioning trolley.

[0010] Based on the above, in order to realize the smooth sliding of the movable tensioning winch mechanism, and also to ensure that it is not pulled during work, the movable tensioning winch mechanism comprises a winch frame, a tensioning winch, a lifting leg, a wheel, and a supporting mechanism;

[0011] Said tensioning winch is rotatably arranged inside the winch frame, for tensioning the tensioning trolley;

[0012] Said lifting leg is liftably connected on both sides of the winch frame, for lifting the bottom of the winch frame off the ground;

[0013] Said wheel is arranged at the bottom of the lifting leg, for moving the winch frame along the track;

[0014] Said supporting mechanism is arranged on the upper part of the winch frame, for supporting the winch frame on the top plate when the winch frame falls to the ground.

[0015] Based on the above, a plurality of said tow trolley bottoms are respectively provided with rollers that slidingly cooperate with the track.

[0016] Based on the above, the rear end of the conveyor frame is further provided with a belt winding device, which is detachably connected behind the movable tensioning winch mechanism.

[0017] Based on the above, the conveyor frame comprises a cross beam and an adjustable leg arranged on the lower side of the cross beam, the top of the cross beam is provided with an upper idler assembly, and a plurality of said tow trolleys are slidingly arranged below the cross beam.

[0018] Based on the above, the fixed end support assembly of the belt storage bin comprises a support connected with the conveyor frame, and a plurality of rollers are rotatably arranged inside the support.

[0019] Based on the above, the length of the supporting mechanism is greater than the height of the conveyor frame.

[0020] The utility model discloses relative prior art has substantial features and progress, specifically speaking, the utility model provides the telescopic belt conveyor with variable length storage belt device, through respectively with the movable type tension winch mechanism and a plurality of tow car trolley of tension trolley, slide setting on the track, can adjust the total length of storage belt device, when use in the driving roadway, can realize shortest 60 meters installation, compared with the 150 meters of original structure shortens 90 meters distance, reduces the transfer length of 60% shuttle car in the initial driving, shortens the driving period. Meanwhile, when use in the coal mining roadway, can realize the distance of 60 meters from the main lane and stop coal mining, after coal mining, need not to dismantle the machine and change the small -size rubber belt conveyor combination shuttle car transfer mode coal mining, reduce the labor intensity, shorten the coal mining period.

[0021] Meanwhile, the device does not matter use in any roadway, need not to dismantle the machine body when changing the length of storage belt device, need not to increase the machine body, save the adjustment time, reduce the worker's carrying capacity, reduce the labor intensity.

[0022] Therefore, the telescopic belt conveyor with variable length storage belt device can realize the free change of the length of storage belt device without stopping, dismantling and assembling. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the telescopic belt conveyor with variable length storage belt device of the utility model in the unfolded state structure schematic drawing.

[0024] Figure 2 It is the telescopic belt conveyor with variable length storage belt device of the utility model in the structure schematic drawing of the structure of folding state.

[0025] Figure 3 And Figure 4 It is the telescopic belt conveyor with variable length storage belt device of the utility model in the structure schematic drawing of the storage belt warehouse fixed end support assembly.

[0026] Figure 5 It is the telescopic belt conveyor with variable length storage belt device of the utility model end structure schematic drawing.

[0027] Figure 6 And Figure 7 It is the telescopic belt conveyor with variable length storage belt device of the utility model in the structure schematic drawing of movable type tension winch mechanism.

[0028] In the figure: 1, unloading part; 2, driving mechanism; 3, storage belt warehouse fixed end support assembly; 4, belt towing trolley; 5, tensioning trolley; 6, track; 7, movable tensioning winch mechanism; 8, belt winding device; 9, transition section; 10, conveyor frame; 11, support; 12, roller; 13, adjustable supporting leg; 14, upper supporting roller assembly; 15, lifting supporting leg; 16, supporting mechanism; 17, tensioning winch; 18, winch frame. DETAILED DESCRIPTION

[0029] The technical scheme of the utility model will be described in further detail below through specific embodiments.

[0030] Embodiment 1

[0031] The embodiment provides a variable-length storage belt device for a telescopic belt conveyor, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , comprising a conveyor frame 10, a driving mechanism 2, a storage belt warehouse fixed end support assembly 3, a track 6, a tensioning trolley 5, a movable tensioning winch mechanism 7 and a plurality of belt towing trolleys 4. The driving mechanism 2 is arranged at the front end of the conveyor frame 10 and is used to drive the conveyor belt to rotate. The storage belt warehouse fixed end support assembly 3 is arranged behind the driving mechanism 2 and is used to fix and support the conveyor belt.

[0032] The plurality of belt towing trolleys 4 are slidingly arranged on the track 6 and are located at the rear end of the storage belt warehouse fixed end support assembly 3 and are used to slidingly support the conveyor belt. The tensioning trolley 5 is movably arranged on the track 6 and is used to tension the conveyor belt. The movable tensioning winch mechanism 7 is slidingly arranged at the rear end of the track 6 and is used to pull the tensioning trolley 5.

[0033] Specifically, as shown in Figure 6 and Figure 7 , in order to realize smooth sliding of the movable tensioning winch mechanism and also to ensure that the movable tensioning winch mechanism is not pulled during work, the movable tensioning winch mechanism 7 comprises a winch frame 18, a tensioning winch 17, a lifting supporting leg 15, a wheel, and a supporting mechanism 16. The tensioning winch 17 is rotationally arranged inside the winch frame 18 and is used to pull the tensioning trolley 5. The lifting supporting leg 15 is liftable connected to the two sides of the winch frame 18 and is used to lift the bottom of the winch frame 18 off the ground. The wheel is arranged at the bottom of the lifting supporting leg 15 and is used to drive the winch frame 18 to move along the track 6. The supporting mechanism 16 is arranged at the upper part of the winch frame 18 and is used to support the winch frame 18 on the top plate when the winch frame 18 falls to the ground.

[0034] As shown in Figure 3 and Figure 4 The fixed end support assembly 3 of the belt storage device comprises a support 11 connected with the conveyor frame 10, and a plurality of rollers 12 are rotatably arranged inside the support 11. The length of the supporting mechanism 16 is greater than the height of the conveyor frame 10.

[0035] The supporting mechanism 16 can be a hydraulic rod stand. The front end of the conveyor frame 10 is also provided with an unloading part 1, and the rear end of the conveyor frame 10 is also connected with a transition section 9.

[0036] Embodiment 2

[0037] The main difference between the variable length belt storage device for the telescopic belt conveyor and the embodiment 1 is that the bottom of each of the belt dragging trolleys 4 is provided with a roller that is in sliding fit with the track 6.

[0038] Embodiment 3

[0039] The main difference between the variable length belt storage device for the telescopic belt conveyor and the embodiment 1 is that the rear end of the conveyor frame 10 is also provided with a belt winding device 8, which is detachably connected behind the movable tension winch mechanism 7.

[0040] Embodiment 4

[0041] The main difference between the variable length belt storage device for the telescopic belt conveyor and the embodiment 1 is that the conveyor frame 10 comprises a cross beam and an adjustable supporting leg 13 arranged at the lower side of the cross beam, the top of the cross beam is provided with an upper idler assembly 14, and a plurality of the belt dragging trolleys 4 are slidingly arranged below the cross beam.

[0042] Specifically, the variable length belt storage device for the telescopic belt conveyor has the following specific working process:

[0043] When the device is installed in a coal mining tunnel, initially arranged as shown in Figure 1 The belt storage device is at the maximum distance, the conveyor is at the maximum length, and the tension is at the maximum. Therefore, the lifting supporting leg 15 needs to be retracted, the supporting mechanism 16 needs to be extended and supported on the roof to increase the friction, and the movable tension winch mechanism 7 also needs to be connected with the belt winding device 8, and the belt winding device 8 is fixed to the ground by an anchor rod to prevent the movable tension winch mechanism from being pulled away due to large tension.

[0044] When the coal mining is only 150 meters away from the conveyor, the tape winding device 8 is no longer needed and can be removed. At this time, the conveyor is shorter and the tension is smaller, and the movable tension winch mechanism lowers the supporting mechanism 16, props up the lifting legs 15 to separate the winch frame 18 from the ground. The wheels on the movable tension winch mechanism are slowly walked on the track by the steel wire rope, and after moving to the position closest to the storage tape warehouse fixed end support assembly, the lifting legs 15 are lowered, the supporting mechanism 16 is propped up, the adjustable legs 13 are adjusted to the lowest position to ensure that the conveyor head is the shortest distance, and thus the coal mining can continue for 90 meters. During this process, the tape dragging trolley 4 also slides along the track 6 to the side of the storage tape warehouse fixed end support assembly.

[0045] When the tape storage device is installed in the tunneling roadway, the tape storage device is initially arranged as shown in Figure 2 to ensure that the conveyor installation distance is the shortest and the required early roadway length is the shortest. When the tunneling is 150 meters, the tape storage device needs to be lengthened at this time, the supporting mechanism is retracted, the lifting legs are lifted to separate the frame from the ground, the leg rollers are walked on the track to the position farthest from the storage tape warehouse fixed end support assembly, and then the lifting legs are lowered, the supporting mechanism is propped up, the friction is increased, and at the same time, the tape winding device is installed, the tape winding device is fixed with anchor rods, the movable tension winch mechanism is connected with the tape winding device to prevent being pulled, and at the same time, the tape winding device facilitates the extension of the rubber belt.

[0046] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application and not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones; without departing from the spirit of the technical solutions of the present application, they should be covered in the technical solution range of the present application claimed.

Claims

1. A variable length storage belt device for a retractable belt conveyor, characterized by: The conveyor frame, the driving mechanism, the fixed end support assembly of the belt storage bin, the track, the tensioning trolley, the movable tensioning winch mechanism and a plurality of belt dragging trolleys are included. The driving mechanism is arranged at the front end of the conveyor frame and used to drive the conveyor belt to rotate. The fixed end support assembly of the belt storage bin is arranged behind the driving mechanism and used to support the conveyor belt. A plurality of the belt dragging trolleys are slidingly arranged on the track and located at the rear end of the fixed end support assembly of the belt storage bin and used to slidingly support the conveyor belt. The tensioning trolley is movably arranged on the track and used to tension the conveyor belt. The movable tensioning winch mechanism is slidingly arranged at the rear end of the track and used to tension the tensioning trolley.

2. The variable length storage belt device for a belt conveyor according to claim 1, characterized by: The movable tensioning winch mechanism includes a winch frame, a tensioning winch, a lifting leg, a wheel and a supporting mechanism. The tensioning winch is rotationally arranged in the winch frame and used to tension the tensioning trolley. The lifting leg is connected to the two sides of the winch frame and used to lift the bottom of the winch frame off the ground. The wheel is arranged at the bottom of the lifting leg and used to drive the winch frame to move along the track. The supporting mechanism is arranged at the upper part of the winch frame and used to support the winch frame on the top plate when the winch frame falls to the ground.

3. The variable length storage belt device for a belt conveyor according to claim 1 or 2, characterized in that: The bottom of each of the belt dragging trolleys is provided with a roller which slidingly cooperates with the track.

4. The variable length storage belt device for a belt conveyor according to claim 1, characterized by: The rear end of the conveyor frame is further provided with a belt winding device which is detachably connected behind the movable tensioning winch mechanism.

5. The variable length storage belt device for a belt conveyor according to claim 1 or 2 or 4, characterized in that: The conveyor frame includes a cross beam and an adjustable leg arranged at the lower side of the cross beam, the top of the cross beam is provided with an upper roller assembly, and a plurality of belt dragging trolleys are slidingly arranged below the cross beam.

6. The variable length storage belt device for a belt conveyor according to claim 5, characterized by: The fixed end support assembly of the belt storage bin includes a support connected with the conveyor frame, and a plurality of rollers are rotationally arranged in the support.

7. The variable length storage belt device for a belt conveyor according to claim 2, characterized by: The length of the supporting mechanism is greater than the height of the conveyor frame.

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