CN102381549A - Capturing device for broken belt of belt conveyer - Google Patents

Abstract

The invention relates to a capturing device for a broken belt of a belt conveyer. A conveyer belt of the conveyer comprises a loading belt and a return belt. The capturing device comprises a frame, a loading rubber belt capturing mechanism, a return rubber belt capturing mechanism, an upper and lower linkage device and an adjusting unlocking mechanism, wherein the loading rubber belt capturing mechanism comprises an upper turning frame assembly and a lower turning frame assembly which are arranged in the frame, can be turned up and down and are located in a same upright position; the return rubber belt capturing mechanism comprises a return belt turning frame assembly and a cross beam; the return belt turning frame assembly is arranged in the frame, can be turned up and down and is in a same horizontal position of the lower turning frame assembly; the cross beam is located under the return belt turning frame assembly; the upper and lower linkage device is located on one outer side of the frame and comprises an upper linkage mechanism and a lower linkage mechanism; and the adjusting unlocking mechanism is located on the other outer side of the frame in the manner of being symmetrical to the upper and lower linkage device and comprises an upper capturing adjusting mechanism and a lower capturing adjusting mechanism. The capturing device provided by the invention has the advantages of compact structure, big braking force, capability of realizing the capturing linkage of the loading belt and the return belt, few malfunctions and capturing reliability, and is free from damaging the conveyer belt.

Description

A broken belt arresting device for a belt conveyor

technical field

The invention relates to a belt conveyor broken belt capture device used for emergency braking and broken belt capture when the belt conveyor breaks.

Background technique

Today, belt conveyors have become the main conveying equipment for bulk materials and bulk materials, and are widely used in industries such as coal, metallurgy, electric power, chemical industry, ports and building materials. However, once the conveyor belt falls due to a broken belt or a reverse accident caused by the failure of the backstop, the conveyor frame will be destroyed, the equipment will be damaged, and the transportation roadway will be blocked, resulting in long-term production stoppage, major economic losses, and even casualties.

For conveyor belt fracture accidents, the most important protection measure at present is to install a broken belt protection device on the conveyor, also known as a catcher. In recent years, mechanical and hydraulic broken belt protection devices or technologies have appeared at home and abroad, but from the perspective of actual use, they are far from meeting the requirements of on-site use. The main shortcomings of these existing protection devices or technologies are as follows:

1. The catcher relies on the movement caused by the reverse running caused by the broken belt to trigger the action. However, due to the complexity of the operating environment, the speed of the conveyor belt changes, the local tension disappears, and the drooping displacement increases, which is easy to cause arrest. The malfunction of the device will affect the production.

2. The actuator of the catcher adopts brake block or eccentric wheel mechanism, the braking area is small, the braking force is concentrated, and it is easy to cause the conveyor belt to tear.

3. There is a lack of necessary considerations in the design of the catcher, which results in a large amount of work and difficulty in the installation, adjustment, and maintenance of the catcher, making it difficult to ensure the good working condition of the catcher and the reliability of the catch action; for example The reset function of the catcher after the broken belt is caught is not considered in the current technology, that is, the unlocking effect; Regulatory problems that arise.

4. The catcher can only simply capture the carrying belt (upper tape), and there is no linkage mechanism between the carrying belt and the return belt (bottom tape), which easily causes additional secondary damage to the broken belt.

Contents of the invention

In order to solve the problems existing in the above-mentioned prior art, the present invention aims to provide a broken belt arresting device for a belt conveyor, which makes full use of the tension change of the conveyor belt when it breaks, and relies on gravity and the action of a torsion spring to realize the carrying belt and the return trip. The belt is captured at the same time, effectively avoiding the misoperation caused by the occasional slack of the return belt.

A broken belt arresting device for a belt conveyor according to the present invention, the conveyor belt of the conveyor includes a carrying belt and a return belt, and the device includes:

frame;

Carrying tape grabbing mechanism, which includes an upper and lower turning frame assembly that can be turned upside down in the frame and located at the same vertical position, and the lower turning frame assembly passes through a The upper roller supported by the movement of the roller is supported on the lower surface of the carrier belt;

A return tape capture mechanism, which includes a return belt reversing frame assembly that can be turned upside down in the frame and is at the same horizontal position as the lower reversing frame assembly, and a crossbeam located below the return belt reversing frame assembly, and The return belt turning frame assembly is pressed against the upper surface of the return belt by a lower roller that rolls with the movement of the return belt; and

The upper and lower linkage device located on the outer side of the frame, which includes:

Connect the upper turning frame assembly and the lower turning frame assembly, and turn the lower turning frame assembly upward while the upper turning frame assembly is turning down, so that the upper turning frame assembly and the lower turning frame assembly are matched Capture the upper linkage of the carrying belt; and

The lower turning frame assembly and the return belt turning frame assembly are linked together, and the return belt turning frame assembly is turned downward when the lower turning frame assembly is turned up, so that the return belt turning frame assembly cooperates with the crossbeam Capture the lower linkage mechanism of the return belt;

The device also includes an adjustment and unlocking mechanism located on the other outer side of the frame symmetrically with the up and down linkage device, which includes:

an upper catch adjusting mechanism connected between the frame and the lower turning frame assembly to adjust the turning position of the lower turning frame assembly; and

A lower catch adjustment mechanism connected between the frame and the return belt turning frame assembly to adjust the turning position of the return belt turning frame assembly.

In the above belt conveyor broken belt capture device, the upper capture adjustment mechanism includes:

A second shaft swivel head that is connected to the lower turning frame assembly and rotates synchronously with it;

a first oscillating head connected to the second shaft rotatable head; and

A first oil cylinder connected to the outer surface of the frame, and the first oil cylinder is connected to the first swing head through a first piston rod;

The lower catch adjustment mechanism includes:

A third-axis swivel head that is connected to the return belt turning frame assembly and keeps rotating synchronously with it;

a second oscillating head connected to the third axis rotatable head; and

The second oil cylinder is connected to the outer surface of the frame, and the second oil cylinder is connected to the second swing head through a second piston rod.

In the above-mentioned belt conveyor broken belt arresting device,

The upper linkage mechanism includes:

an upper crank with one end connected to the upper turning frame assembly; and

One end of the lower crank connected with the lower turning frame assembly is connected with the other end of the upper crank through a linkage connecting rod.

The lower linkage mechanism includes:

a short connecting rod with one end connected to the other end of the lower crank, and the other end of the short connecting rod is connected to the outer surface of the frame through a push rod; and

The lower turning head crank that is connected with the return belt turning frame assembly and makes the return belt turning frame assembly turn over under the action of the push rod.

In the above belt conveyor broken belt capture device, the frame includes an upper part and a lower part connected as one, wherein:

The upper part includes a left vertical board and a right vertical board arranged in parallel, and a back board and a front guard board for connecting the left and right vertical boards;

The lower part comprises a left lower frame vertically connected below the left vertical board and a right lower frame vertically connected below the right vertical board.

In the above belt conveyor broken belt arresting device, the upper turning frame assembly includes:

The first rotating shaft is horizontally and rotatably connected between the left and right vertical plates and close to the back plate through the first bearing assembly, and the two ends of the first rotating shaft are respectively provided with torsion springs, and the torsion springs one end of which is fixedly connected to the left vertical plate or the right vertical plate, and the other end is fixed to the first connecting frame plate;

a first connecting frame plate, one end of which is fixedly connected to the first rotating shaft, so as to turn up and down with the rotation of the first rotating shaft; and

The first friction block is arranged at the other end of the first connecting frame plate.

In the above belt conveyor broken belt arresting device, the lower turning frame assembly includes:

The second rotating shaft is horizontally and rotatably connected between the left and right vertical plates through the second bearing assembly and is located at the same vertical position as the first rotating shaft, and the two ends of the second rotating shaft are respectively provided with A torsion spring, one end of the torsion spring is fixedly connected to the left vertical plate or the right vertical plate, and the other end is fixed to the second connecting frame plate;

A second connecting frame plate, one end of which is fixedly connected to the second rotating shaft, so as to turn up and down with the rotation of the second rotating shaft, and the upper surface of the second connecting frame plate is installed with the upper roller; and

The second friction block is arranged at the other end of the second connecting frame plate.

In the above belt conveyor broken belt capture device, the return belt turning frame assembly includes:

The third rotating shaft is horizontally and rotatably connected between the left and right vertical plates through the third bearing assembly and is located at the same horizontal position as the second rotating shaft;

A third connecting frame plate, one end of which is fixedly connected to the third rotating shaft, so as to turn up and down with the rotation of the third rotating shaft, and the lower surface of the third connecting frame plate is installed with the lower roller; and

The third friction block is arranged at the other end of the third connecting frame plate.

In the above broken belt catcher for belt conveyors, the first friction block, the second friction block and the third friction block are all wedge-shaped.

In the belt conveyor broken belt arresting device described above, the upper crank is installed on one end of the first rotating shaft; the lower crank is installed on one end of the second rotating shaft; the lower turning head crank Installed on one end of the third rotating shaft.

In the belt conveyor broken belt capture device mentioned above, the second shaft swivel head is installed on the other end of the second rotating shaft; the third shaft swivel head is installed on the other end of the third rotating shaft one end.

Due to the above-mentioned technical solution, the present invention has the following beneficial technical effects:

1. The upper overturning frame assembly in this device is also used as a counterweight. Through its own gravity combined with the torsion spring, the overturning moment is generated, and the braking torque is large. Therefore, even if the conveyor runs in the reverse direction for a short time, it will not happen. Misoperation.

2. The upper and lower turning frame assemblies and the return belt turning frame assembly in the device are all placed in the frame, so that the device has a compact structure and takes up less space.

3. This device realizes through the upper and lower linkage device: when catching the broken belt, it can capture the carrying belt and the return belt after the broken belt at the same time, avoiding the secondary damage of the broken belt; and because of the use of the upper and lower linkage device, so that the return tape capture mechanism is triggered by the action of the carrying tape capture mechanism, thereby effectively preventing the return tape capture mechanism from malfunctioning when the return tape is accidentally loose.

4. When the device captures the broken belt, the lower turning frame assembly can turn up the broken belt, thereby unloading the load on the bearing belt, and arresting along the entire width of the belt, so there is little damage to the belt body , and the capture reliability is high.

5. This device cooperates with the upper and lower turning frame assemblies to catch the broken belt of the bearing belt, so that the lifting height of the bearing can be effectively reduced, and the required turning moment can be reduced.

6. By adjusting the unlocking mechanism, the device can adjust the clamping conveyor belt at any height or return to the original position by each turning frame assembly, so as to facilitate the maintenance or repair of the conveyor belt and the recovery of the captured state.

Description of drawings

Fig. 1 is the right perspective view of the structural principle of a broken belt arresting device for a belt conveyor of the present invention;

Fig. 2 is the left perspective view of the structural principle of the device of the present invention;

Fig. 3 is the installation status diagram of the device of the present invention under the normal running state of the conveyor belt;

Fig. 4 is a state diagram of the arresting action of the device of the present invention under the condition of a broken conveyor belt;

Fig. 5 is the perspective view of the structure of the device of the present invention without the left vertical plate and the left frame and under the normal running state of the conveyor belt;

Fig. 6 is the perspective view of the structure of the device of the present invention with the left vertical plate and the left frame removed and caught under the broken belt of the conveyor belt;

Fig. 7 is a right perspective view of the structure of the device of the present invention in the unlocked state of the upper catch adjustment mechanism;

Fig. 8 is a right perspective view of the structure of the device of the present invention in the self-locking state of the upper catch adjustment mechanism.

Detailed ways

Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

Please refer to Fig. 1 to Fig. 8, the present invention, promptly a kind of broken belt capture device of belt conveyor, comprises frame, carrying belt (being upper band) capture mechanism, return belt (ie lower belt) capture mechanism, upper and lower The linkage device and the adjustment unlocking mechanism are used to catch the broken belt of the conveyor belt installed on the frame 38. The conveyor belt includes the carrier belt 34 supported by the trough-shaped upper roller assembly 36 and the return belt supported by the flat idler roller assembly 37. Bring 35.

The frame consists of upper and lower parts connected as a whole, of which:

The upper part includes a left vertical board 5 and a right vertical board 1 arranged in parallel, and a back board 3 and a front guard board 8 for connecting the left and right vertical boards 5 and 1;

Bottom comprises the lower left frame 9 that is vertically connected below the left vertical plate 5 by upper and lower frame connecting bolt groups 12 and the right lower frame 14 that is vertically connected below the right vertical plate 1 by upper and lower frame connecting bolt groups 12, left and right Lower frame 9,14 are arranged in parallel.

The carrying belt catch mechanism includes an upper overturning frame assembly 4 and a lower overturning frame assembly 7, wherein:

The upper turning frame assembly 4 includes a first rotating shaft 27, a first friction block 28 and a first connecting frame plate 29, and one end of the first connecting frame plate 29 is fixedly connected with the first rotating shaft 27, so that it can rotate with the first The rotation of the shaft 27 turns up and down, and the first friction block 28 is arranged on the other end of the first connecting frame plate 29;

The lower turning frame assembly 7 includes a second rotating shaft 32, a second friction block 30 and a second connecting frame plate 31, and one end of the second connecting frame plate 31 is fixedly connected with the second rotating shaft 32, so that it can rotate with the second The rotation of the shaft 32 turns up and down, and the second friction block 30 is arranged on the other end of the second connecting frame plate 31; the upper idler roller 6 is installed on the upper surface of the second connecting frame plate 31, and the upper idler roller 6 supports the carrying belt 34 The effect of rolling along with the movement of carrying belt 34 under running state.

The return tape capture mechanism includes a return belt flip frame assembly 10 and a crossbeam 11, wherein:

The return belt turning frame assembly 10 includes a third rotating shaft 26, a third friction block 23 and a third connecting frame plate 24, and one end of the third connecting frame plate 24 is fixedly connected with the third rotating shaft 26, so that it can follow the third rotating shaft. The rotation of the rotating shaft 26 turns up and down, and the third friction block 23 is arranged on the other end of the third connecting frame plate 24; the lower idler roller 22 is installed on the lower surface of the third connecting frame plate 24, and the lower idler roller 22 is in the running state. Press on the upper surface of the return belt 35 and roll along with the movement of the return belt 35;

Crossbeam 11 is fixedly connected between left and right lower frame 9,14 by fixed beam bolt group 48.

The first, second and third rotating shafts 27, 32, and 26 of the above-mentioned three overturning frame assemblies, that is, the upper overturning frame assembly 4, the lower overturning frame assembly 7 and the return belt overturning frame assembly 10 respectively pass through the first 1. The end cover flanges contained in the second and third bearing assemblies 2, 25, 39 are connected between the three pairs of holes on the left and right vertical plates 5, 1, specifically:

The upper turning frame assembly 4 is installed on the upper part of the left and right vertical plates 5 and 1, and the lower turning frame assembly 7 is installed on the bottom of the left and right vertical plates 5 and 1, both of which are symmetrically arranged near the back plate 3, and the first rotation axis 27 and the second rotating shaft 32 are located at the same vertical position, because the above-mentioned components of the upper and lower turning frame assemblies 4, 7 are all placed in the upper part of the frame, so that the device has a compact structure and takes up less space;

At the two ends of the first and second rotating shafts 27 and 32 of the upper and lower turning frame assemblies 4 and 7, a torsion spring 33 is installed respectively, and one end of the torsion spring 33 installed on the first rotating shaft 27 is fixed on the left side. On the vertical board 5 or the right vertical board 1, the other end is fixed on the first connecting frame plate 29, and one end of the torsion spring 33 installed on the second rotating shaft 32 is fixed on the left vertical board 5 or the right vertical board 1, and the other One end is fixed on the second connecting frame plate 31;

The return belt turning frame assembly 10 is installed on the left and right vertical plates 5,1 fronts, and the third rotating shaft 26 is at the same horizontal position as the second rotating shaft 32, so that the carrying tape catch mechanism and the return tape catch mechanism are in the same horizontal position. Can reduce the overturning moment of frame 38 under the catching state, reduce its destructiveness.

An upper and lower linkage device is installed at the same end of the rotating shaft of each turning frame assembly, so that each turning frame assembly can realize the capture of broken belts, specifically:

The upper turning frame assembly 4 can realize the downward swing movement under the action of its own weight and the torsion spring 33; the lower turning frame assembly 7 can realize the upward swing movement under the action of the upper and lower linkage device and the torsion spring 33; the upper and lower turning frame assembly The wedge-shaped first and second friction blocks 28 and 30 of 4 and 7 cooperate to form the catching of the broken belt of the carrying belt 34;

Backhaul belt overturn frame assembly 10 can rely on its own gravitational effect, makes its wedge-shaped third friction block 23 cooperate with the crossbeam 11 that is fixed on left and right lower frame 9,14 and form the catch of backhaul belt 35 broken belts.

In this embodiment, the up and down linkage device is arranged on the left side of the frame of the catch device; the up and down linkage device includes an upper linkage mechanism for realizing the synchronous flipping of the upper and lower flip frame assemblies 4, 7 and a catch mechanism for ensuring that the carrying tape The lower linkage mechanism in which the return tape capture mechanism does not act when it is not in action, wherein:

The upper linkage mechanism includes upper and lower cranks 16, 18 and linkage connecting rod 17;

The lower linkage mechanism includes a lower crank 18, a short connecting rod 19, a push rod 20 and a lower turning head crank 21;

The upper crank 16 is installed on the left end of the first rotating shaft 27, the lower crank 18 is installed on the left end of the second rotating shaft 32, and the lower turning head crank 21 is installed on the left end of the third rotating shaft 26, and one end of the upper crank 16 passes through the linkage connecting rod. 17 is connected to one end of the lower crank 18, and the other end of the lower crank 18 is connected to the left lower frame 9 through the connected short connecting rod 19 and push rod 20;

A key (not shown) is housed between each above-mentioned crank and the rotating shaft to transmit the axial torque, thereby ensuring that each crank and the turning frame assembly rotate synchronously.

On the rotating shafts of the lower reversing frame assembly 7 and the return belt reversing frame assembly 10, that is, the other end corresponding to the end of the second rotating shaft 32 and the third rotating shaft 26 is equipped with an up-and-down linkage device, and an adjustment unlocking mechanism is installed. Thereby realize the unlocking after catching brake.

In this embodiment, the adjustment and unlocking mechanism is arranged on the right outer side of the frame of the catching device; Capture adjustment mechanism 13, wherein:

The last catching adjustment mechanism 15 comprises a second shaft rotary head 45, a first oil cylinder 40, a first piston rod 41 and a first swing head 46; The rotating shaft 32 keeps rotating synchronously; the first swing head 46 is connected on the second shaft rotating head 45 that the second rotating shaft 32 stretches out from the right vertical plate 1; the first oil cylinder 40 is connected on the outer surface of the lower right frame 14, and Connected with the first swing head 46 through the first piston rod 41;

Catch adjustment mechanism 13 down and comprise the 3rd shaft rotary head 47, the second oil cylinder 42, the second piston rod 43 and the second swing head 44; The rotating shaft 26 keeps rotating synchronously; the second swing head 44 is connected on the third shaft rotating head 47 of the third rotating shaft 26 stretching out from the right vertical plate 1; the second oil cylinder 42 is connected on the outer surface of the lower right frame 14, and It is connected to the second swing head 44 via the second piston rod 43 .

The working principle of the device of the present invention will be introduced in detail below.

Figure 3 shows the state of each component in the device under the normal running state of the conveyor belt. When the conveyor belt runs at the speed V along the direction shown in the figure, the upper turning frame assembly 4 has a tendency to turn downwards under the action of its own gravity and the tension of the torsion spring 33. The frame assembly 7 has a tendency to turn upwards, so that the upper roller 6 on the lower flip frame assembly 7 is close to the lower surface of the carrier belt 34, and the upper roller 6 plays a supporting role and rotates with the carrier belt 34, but due to the load The existence of tension in the belt 34 stops the movement tendency of the lower turning frame assembly 7 and achieves the balance of the upper and lower turning frame assemblies 4,7. Similarly, the lower idler roller 22 of the return belt turning frame assembly 10 presses on the upper surface of the return belt 35 and rolls along with the return belt 35 .

As shown in FIG. 5 , when the conveyor belt is running normally, under the blocking of the push rod 20 , the crank 21 of the downturning head cannot swing to the right, thereby preventing the downturning of the return belt turning frame assembly 10 .

Figure 4 shows the state of each component in the device when the conveyor belt breaks. When the carrying belt 34 breaks, the tension in the conveyor belt loses or decreases suddenly, and the upper turning frame assembly 4 turns downwards under the action of gravity, and the lower turning frame assembly 7 generates an upward turning moment through the linkage connecting rod 17. The moment overcomes the gravity of the conveyor belt, the cargo load and the lower turning frame assembly 7 itself, so that the lower turning frame assembly 7 is turned upwards. When turning over to a certain angle, the first and second friction blocks 28, 30 of the upper and lower turning frame assemblies 4, 7 clamp the carrying belt 34. Due to the presence of friction between the first and second friction blocks 28,30 and the upper and lower surfaces of the carrier belt 34, the carrier belt 34 forms a self-lock with the first and second friction blocks 28,30, so that the carrier belt 34 is firmly firmly arrested. The downturn frame assembly 7 upturns and can turn up the broken belt of the carrying belt 34, unloads the load on the carrying belt 34, and catches along the whole belt direction, which is small to the damage of the belt body and high in catching reliability. Simultaneously, the linked use of the upper and lower turning frame assemblies 4, 7 can effectively reduce the lifting height of the carrying belt 34, and reduce the required turning moment of the upper and lower turning frame assemblies 4, 7.

As shown in Figure 6, when the lower turning frame assembly 7 is turned upwards, the lower crank 18 pulls the push rod 20 to swing to the right through the short connecting rod 19, thereby allowing the lower turning head crank 21 to swing to the right, that is, to realize counterclockwise swing, thereby Make the return belt turning frame assembly 10 to turn down under the effect of gravity. At this time, since the return belt 35 also loses tension, it cannot overcome the gravity of the return belt turning frame assembly 10, so the return belt 35 is pressed onto the crossbeam 11 by the return belt turning frame assembly 10, also due to the third friction block 23 and Crossbeam 11 and backhaul belt 35 upper and lower surface friction exist, and backhaul belt 35 forms self-locking with the 3rd friction block 23, crossbeam 11, thereby finishes the capture of backhaul belt 35 broken belts. It can be seen that, because the present invention adopts the upper and lower linkage device, therefore, when the load-carrying tape catching mechanism does not operate, the return tape catching mechanism cannot work, thereby effectively preventing the return belt 35 from being accidentally slack and producing a malfunction, that is It is ensured that the capture device is not subject to misoperation caused by 35 sag fluctuations of the return belt.

As shown in Figures 7 and 8, when the upper catch adjustment mechanism 15 works, the first piston rod 41 stretches out, causing the first swing head 46 to swing upwards, driving the second shaft head 45 to rotate at a certain angle, so that the upper and lower The first and second friction blocks 28, 30 of the reversing frame assembly 4, 7 are out of the locked state. Equally, adjust the second piston rod 43 telescoping lengths of lower catching adjustment mechanism 13, make the second swing head 44 drive the 3rd axle swivel head 47 to rotate, realize the position adjustment of backhaul belt overturning frame assembly 10 and after catching and braking unlocked. When carrying out the installation and commissioning of the catching device, the conveyor belt maintenance or repair, the first and second oil cylinders 40, 42 can be adjusted to make the first swing head 46 and the second swing head 44 respectively drive the second shaft rotary head 45 and The rotation of the third shaft rotary head 47 adjusts the clamping conveyor belts of each turning frame assembly at any height or returns and fixes it at the original position.

In summary, the load-carrying tape capture mechanism and the return tape capture mechanism of the present invention can capture and lock a large area of the conveyor belt to avoid new tears when the broken belt is captured; in addition, the present invention adopts The upper and lower linkage devices are arranged, and the braking torque is increased at the same time, which avoids malfunctions. Moreover, the installation, debugging and maintenance of the device are facilitated by adding an adjustable unlocking mechanism.

What is described above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Various changes can also be made to the above embodiments of the present invention. That is to say, all simple and equivalent changes and modifications made according to the claims and description of the application for the present invention fall within the protection scope of the claims of the patent of the present invention. What is not described in detail in the present invention is conventional technical contents.

Claims (10)

1. a belt conveyer broken belt is arrested device, and the load-transfer device of said conveyer comprises carrying to be with and the backhaul band, it is characterized in that said device comprises:

Framework;

Carry the adhesive tape arresting agency; It comprises the last turning rack assembly and following turning rack assembly that can be arranged in the framework with spinning upside down and be positioned at same vertical position, and saidly descends the turning rack assembly to be supported on this carrying through the upper supporting roller that rolls with the motion of said carrying band to be with lower surface;

Backhaul adhesive tape arresting agency; It comprises and can be arranged in the framework with spinning upside down and be in the backhaul band turning rack assembly and the crossbeam that is positioned at this backhaul band turning rack assembly below of same level attitude with said turning rack assembly down, and said backhaul band turning rack assembly is pressed in this backhaul band upper surface through the snub pulley that rolls with the motion of said backhaul band; And

Be positioned at the linkage from top to bottom device in said framework one outside, it comprises:

Connect said turning rack assembly and the following turning rack assembly gone up, and when last turning rack assembly overturns, make upwards upset of turning rack assembly down downwards, cooperate the last link gear of arresting the carrying band with following turning rack assembly so that go up the turning rack assembly; And

Link said down turning rack assembly and backhaul band turning rack assembly, and descending the resupinate backhaul band turning rack assembly that makes simultaneously of turning rack assembly to overturn downwards, so that backhaul band turning rack assembly cooperates the following link gear of arresting the backhaul band with said crossbeam;

Said device also comprises the adjusting release mechanism that is symmetrically located at another outside of framework with said linkage from top to bottom device, and it comprises:

Be connected between said framework and the following turning rack assembly, to arrest regulating mechanism on the upturned position of regulating down the turning rack assembly; And

Be connected between said framework and the backhaul band turning rack assembly, with the following regulating mechanism of arresting of the upturned position of regulating backhaul band turning rack assembly.

2. belt conveyer broken belt according to claim 1 is arrested device, it is characterized in that, arrests regulating mechanism on said to comprise:

Is connected with said down turning rack assembly and revolves head with second of its maintenance rotation synchronously;

Be connected said second and revolve the swing of first on head head; And

Be connected first oil cylinder of said framework lateral surface, and this first oil cylinder is connected with the said first swing head through the first piston bar;

Arresting regulating mechanism under said comprises:

Be connected with said backhaul band turning rack assembly and revolve head with third axle that its maintenance is rotated synchronously;

Be connected said third axle and revolve the swing of second on head head; And

Be connected second oil cylinder of said framework lateral surface, and this second oil cylinder is connected with the said second swing head through second piston rod.

3. belt conveyer broken belt according to claim 1 and 2 is arrested device, it is characterized in that,

The said link gear of going up comprises:

Crank on one end and the said upward turning rack assembly bonded assembly; And

With said turning rack assembly bonded assembly lower crank down, the one of which end is connected with the said other end of going up crank through the interlock connecting rod.

Said link gear down comprises:

The other end bonded assembly short connecting rod of one end and said lower crank, the other end of this short connecting rod is connected on the lateral surface of framework through push rod; And

With said backhaul band turning rack assembly bonded assembly, and the following invertible head crank that backhaul band turning rack assembly is overturn.

4. belt conveyer broken belt according to claim 3 is arrested device, it is characterized in that, said framework comprises the upper and lower that links into an integrated entity, wherein:

Said top comprises left riser and the right riser that laterally arranges, and the backboard and the font lower shroud that are used to connect left and right riser;

Said bottom comprises left lower bearing bracket that vertically is connected left riser below and the bottom right frame that vertically is connected right riser below.

5. belt conveyer broken belt according to claim 4 is arrested device, it is characterized in that, the said turning rack assembly of going up comprises:

First S. A.; It rotatably is connected between the said left and right riser and near backboard through the clutch shaft bearing component level; And the two ends of this first S. A. are respectively equipped with torsion spring; One end of said torsion spring is fixedly connected on left riser or the right riser, and the other end is fixed on said first and connects frame plate;

First connects frame plate, and the one of which end is captiveed joint with said first S. A., spins upside down with the rotation with this first S. A.; And

Be arranged on first friction shoe of the other end of the said first connection frame plate.

6. belt conveyer broken belt according to claim 5 is arrested device, it is characterized in that, said turning rack assembly down comprises:

Second S. A.; It rotatably is connected between the said left and right riser and with first S. A. through the second bearing assembly level and is positioned at same vertical position; And the two ends of this second S. A. are respectively equipped with torsion spring; One end of said torsion spring is fixedly connected on left riser or the right riser, and the other end is fixed on said second and connects frame plate;

Second connects frame plate, and the one of which end is captiveed joint with said second S. A., spin upside down with the rotation with this second S. A., and the upper surface of this second connection frame plate is installed said upper supporting roller; And

Be arranged on second friction shoe of the other end of the said second connection frame plate.

7. belt conveyer broken belt according to claim 6 is arrested device, it is characterized in that, said backhaul band turning rack assembly comprises:

The 3rd S. A., it rotatably is connected between the said left and right riser and with second S. A. through third axle bearing assembly level and is positioned at same level attitude;

The 3rd connects frame plate, and the one of which end is captiveed joint with said the 3rd S. A., spin upside down with the rotation with the 3rd S. A., and the lower surface of the 3rd connection frame plate is installed said snub pulley; And

Be arranged on the 3rd friction shoe of the other end of said the 3rd connection frame plate.

8. belt conveyer broken belt according to claim 7 is arrested device, it is characterized in that, said first friction shoe, second friction shoe and the 3rd friction shoe are wedge shape.

9. arrest device according to claim 7 or 8 described belt conveyer broken belts, it is characterized in that, said upward crank is installed in an end of said first S. A.; Said lower crank is installed in an end of said second S. A.; Said invertible head crank down is installed in an end of said the 3rd S. A..

10. belt conveyer broken belt according to claim 9 is arrested device, it is characterized in that, said second revolves the other end that head is installed in said second S. A.; Said third axle revolves the other end that head is installed in said the 3rd S. A..

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