Belt conveyor tail locking equipment

Abstract

The invention relates to the technical field of belt conveyors, in particular to belt conveyor tail locking equipment which comprises two fixed frames symmetrically fixed to the two ends of a belt conveyor tail supporting frame, and further comprises a first movable frame slidably installed between the two fixed frames and located on the inner side of a conveying belt of a belt conveyor, and a second movable frame slidably installed between the two fixed frames and located on the inner side of the conveying belt of the belt conveyor. The two driving assemblies are mounted between the two ends of the first movable frame and the two fixed frames correspondingly and used for driving the first movable frame to move; the two-way locking assembly is installed between the first movable frame and a rotating roller of the belt conveyor, and the two-way locking assembly comprises two ratchet wheel mechanisms which are arranged in a central symmetry mode and used for conducting mechanical locking on the rotating roller in two directions; according to the device, through the arrangement of the bidirectional locking assembly, the rotating roller cannot rotate in two directions after stopping, and potential safety hazards caused by forward conveying after reverse locking of the belt conveyor are avoided.

Description

Technical Field

[0001] The present invention relates to the field of belt conveyors, and particularly to a tail locking device for a belt conveyor. Background Art

[0002] Belt conveyors (referred to as belt conveyors for short) are widely used in industrial production for material transportation. Especially in industries such as mines, ports, and power plants, in order to ensure the safe operation of the belt conveyor and the orderly transportation of materials, the tail locking device is a very important component. The tail locking device is mainly used to lock the tail part when the belt conveyor stops running or is under maintenance, prevent the reverse flow of materials or accidental startup, and ensure the safety of operators and the integrity of the equipment.

[0003] During the use of the belt conveyor, if it is necessary to stop the transportation, it is necessary to lock it through the tail locking device to prevent the situation of potential safety hazards caused by the reverse transportation of the belt conveyor itself. The existing tail locking devices usually lock the belt conveyor unidirectionally, resulting in the belt conveyor not being able to reverse after being locked but still having the situation of continuing to run forward, so there are still potential safety hazards in locking the belt conveyor. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art and propose a tail locking device for a belt conveyor.

[0005] In a first aspect, the present invention provides a tail locking device for a belt conveyor, including two fixed frames symmetrically fixed at both ends of the tail support frame of the belt conveyor, and further including:

[0006] A first movable frame slidably installed between the two fixed frames and located inside the conveyor belt of the belt conveyor;

[0007] Two driving components respectively installed between the two ends of the first movable frame and the two fixed frames for driving the first movable frame to move;

[0008] A two-way locking component installed between the first movable frame and the rotating roller of the belt conveyor. The two-way locking component includes two ratchet mechanisms arranged in central symmetry for mechanically locking the rotating roller in two directions;

[0009] When the belt conveyor needs to be paused and locked, the driving component is started. The driving component drives the first movable frame to move towards the rotating roller, so that the two-way locking component is started. After the two-way locking component is started, it locks the rotating roller in two directions, so that the rotating roller cannot rotate in both directions after stopping, so that the rotating roller can be locked and stopped after stopping, which is beneficial to avoiding the situation of the belt conveyor reversing or continuing to transmit forward, and is beneficial to avoiding the situation of potential safety hazards caused by the belt conveyor transmitting forward after being reversely locked.

[0010] Preferably, the driving assembly includes:

[0011] A first motor fixed to the side wall of the fixing frame;

[0012] A first gear rotatably installed inside the installation groove formed inside the fixing frame;

[0013] A first rack slidably installed inside the installation groove, one end of the first rack is fixedly connected to the first movable frame, and the first rack meshes with the first gear;

[0014] After the first motor is started, the output shaft drives the connected first gear to rotate. After the first gear rotates, it drives the engaged first rack to move. The first rack drives the first movable frame to move towards the rotating roller, so that the first movable frame drives the two-way locking assembly to approach the rotating roller to perform two-way locking on the rotating roller.

[0015] Preferably, the ratchet mechanism includes:

[0016] A ratchet fixedly embedded in the side wall of the rotating roller of the belt conveyor;

[0017] A movable plate installed on the side wall of the first movable frame;

[0018] A baffle fixed to the side wall of the movable plate;

[0019] A limiting plate rotatably installed on the side wall of the movable plate. A torsion spring is sleeved outside the rotating shaft of the limiting plate, and both ends of the torsion spring are fixedly connected to the limiting plate and the movable plate respectively. The limiting plate is adapted to the ratchet;

[0020] When the limiting plate moves towards the ratchet, if the ratchet rotates along the direction of the limiting plate, the limiting plate is pushed and flipped under the action of the ratchet rotation, so that the limiting plate does not limit the ratchet. When the ratchet rotates in the reverse direction, the end of the limiting plate is stuck inside the inner groove of the ratchet, so that the limiting plate forms a support for the rotation of the ratchet, so that the ratchet cannot rotate in the reverse direction;

[0021] If the ratchet rotates towards the limiting plate, the limiting plate directly inserts into the inner groove of the ratchet, so that the limiting plate forms a support for the ratchet, making the ratchet unable to continue rotating;

[0022] By setting up two sets of ratchet mechanisms, when the limit plate moves toward the ratchet, one limit plate rotates relative to the corresponding ratchet to directly insert and limit the corresponding ratchet; when the corresponding ratchet stops rotating and reverses, the other limit plate will be inserted into the inner groove of the corresponding ratchet, thereby limiting the two ratchets in two directions, thereby realizing two-way limiting of the rotating roller, which is beneficial to avoid the rotating roller from reversing or continuing to rotate in the forward direction, thereby helping to improve safety.

[0023] Preferably, the ratchet mechanism further comprises:

[0024] Two first cylinders are respectively mounted on the side walls of the first movable frame in a centrally symmetrical manner through mounting frames, and the first cylinders drive the movable plate to move vertically through telescopic rods;

[0025] Two pressure sensors are respectively installed on one end of the two limit plates facing the ratchet wheel;

[0026] When one of the limit plates is fully inserted into the inner groove of the ratchet to support it, the pressure sensor at the end of the limit plate is pressed against the side wall of the inner groove of the ratchet, so that the pressure sensor is under pressure. At the same time, if the other limit plate is fully inserted into the inner groove of the ratchet, the pressure sensor at the end of the limit plate is not pressed against the inner wall of the inner groove of the ratchet, and the pressure sensor is not under pressure. A control unit is installed on the first movable frame. When the control unit receives the pressure information of the pressure sensor, it controls the first cylinder corresponding to the limit plate corresponding to the unpressurized pressure sensor to start, so that after the first cylinder is started, the limit plate is pushed vertically toward the direction close to the other limit plate through the telescopic rod, thereby driving the limit plate to move and plug into the inner groove of the ratchet, so that the limit plate is fully inserted into the inner groove of the ratchet after vertical movement, thereby supporting the other ratchet, thereby achieving full support for the two ratchets, which is beneficial to fully locking and positioning the rotating roller, and is beneficial to reducing the safety hazard caused by the shaking of the rotating roller after stopping.

[0027] Preferably, the ratchet mechanism further comprises:

[0028] Two magnets are respectively fixed on the side walls of the corresponding limiting plates;

[0029] Two groups of iron sheets, the iron sheets in the same group are arranged in a circular array, and the iron sheets in the same group are fixed on the side walls of each inner groove of the same ratchet;

[0030] When the limit plate is close to the ratchet, under the magnetic adsorption force of the magnet and the iron sheet, the limit plate tends to be inserted into the inner groove of the ratchet, which is beneficial to avoid the situation where the limit plate and the ratchet are misaligned and the support is not achieved due to damage to the torsion spring, which is beneficial to improve the stability of the limit plate's support for the ratchet to achieve locking of the rotating roller.

[0031] Preferably, the ratchet mechanism further includes:

[0032] Two second motors, both fixed on the side walls of the first movable frame;

[0033] Two rotating frames, respectively rotatably installed on the side walls of the first movable frame, the two rotating frames respectively drive the two mounting frames to rotate, and the two second motors respectively drive the two rotating frames to rotate;

[0034] After the second motor is started, it drives the rotating frame to rotate through the output shaft. After the rotating frame rotates, it drives the mounting frame to rotate. The mounting frame drives the movable plate and the limiting plate to rotate, so that the limiting plate disengages from the ratchet wheel, so that one of the limiting plates can be adjusted to disengage from the corresponding ratchet wheel, so as to realize the adjustment of the one-way limit locking of the rotating roller, so that the two-way limit and one-way limit of the rotating roller can be selectively adjusted.

[0035] Preferably, it further includes:

[0036] A second movable frame, which is slidably installed between the two fixed frames through sliding plates fixed at both ends, and a friction plate is fixed on the inner wall of the second movable frame;

[0037] Two second racks are respectively fixed at both ends of the two second movable frames, and the two second racks are respectively engaged with the first gears in the two driving components. When the first gear rotates, it drives the second rack to move in the opposite direction to the first rack;

[0038] After the first gear rotates, it drives the engaged second rack to move towards the fixed frame. The second rack drives the second movable frame to move towards the conveyor belt, so that the friction plate on the inner wall of the second movable frame contacts and presses the conveyor belt, so as to hinder the conveyor belt through friction, so that the conveyor belt can also be limited, which is beneficial to avoiding the situation that the conveyor belt generates its own transmission deviation after the rotating roller is locked, and is beneficial to improving the stability of locking the belt conveyor.

[0039] Preferably, it further includes:

[0040] A second gear, rotatably installed inside the installation groove, the second gear is coaxial with the first gear and is connected to each other through a one-way bearing;

[0041] A fourth gear, rotatably installed inside the installation groove, and meshed with the second gear;

[0042] A rotating block, rotatably inserted into the fixed frame, and the end of the rotating block is inserted and connected to the rotating roller through a cross plug block;

[0043] The third gear is fixed on the outer wall of the rotating block, and the third gear is meshed and matched with the fourth gear;

[0044] When the rotating roller rotates, it drives the rotating block to rotate through the cross plugging block. After the rotating block rotates, it drives the third gear to rotate. The third gear drives the meshed fourth gear to rotate, and the fourth gear drives the meshed second gear to rotate. The second gear and the first gear are connected by a one-way bearing. When the rotating roller rotates forward, the rotation of the rotating roller driving the second gear will not drive the first gear to rotate. When the rotating roller rotates reversely, the rotation of the rotating roller driving the second gear will drive the first gear to rotate through the one-way bearing, thereby driving the driving component to start. This is beneficial for automatically starting the driving component and driving the two-way locking component to start to lock the rotating roller when the rotating roller reverses during the rotation process. Thus, when a reverse rotation error occurs, the two-way locking component can be triggered to lock the rotating roller without manual operation by the staff.

[0045] Preferably, it further includes:

[0046] A gear set is installed inside the installation groove. After the third gear is meshed with the gear set, the gear set drives the second gear to rotate;

[0047] The second cylinder is fixed on the side wall of the support frame and drives the rotating block to move through the telescopic rod to drive the fourth gear to switch the meshing with the gear set and the fourth gear;

[0048] When the rotating roller is rotating in the normal state, that is, rotating reversely, the second cylinder is started. The second cylinder drives the rotating block to move through the telescopic rod, so that the rotating block drives the fourth gear to move and switch to meshing with the gear set. Thus, when the rotating roller rotates, the second gear is driven to rotate through the meshing of the fourth gear and the gear set, so that the reversely rotating rotating roller can still drive the second gear to rotate forward without driving the first gear to rotate. After the rotating roller switches the rotation direction, it will drive the second gear to rotate reversely and then drive the first gear to rotate, thereby triggering the two-way locking component to start to lock the rotating roller;

[0049] In summary, when the rotating roller rotates in two directions, it can trigger the two-way locking component to start to lock the rotating roller after suddenly reversing itself.

[0050] Preferably, it further includes:

[0051] A plurality of clamping blocks are fixed on the inner wall of the second movable frame in a curved array;

[0052] Two positioning strips are symmetrically fixed on both sides of the conveyor belt, and a plurality of clamping grooves adapted to the clamping blocks are formed on the positioning strips;

[0053] When the second movable frame moves towards the conveyor belt, the second movable frame drives the clamping block to move towards the clamping groove. When the clamping block and the clamping groove are misaligned, if the conveyor belt does not shift, the clamping block and the clamping groove do not affect the locking of the conveyor belt. If the conveyor belt shifts, the shift of the conveyor belt drives the clamping groove to shift, causing the clamping block to be clamped and limited with the shift of the clamping groove, thereby realizing the limitation of the conveyor belt, which is beneficial to avoiding the situation where the conveyor belt shifts after the rotating roller is locked.

[0054] Compared with the prior art, the present invention has the following beneficial effects:

[0055] Through the setting of the bidirectional locking component, the rotating roller cannot rotate in both directions after stopping, so that the rotating roller can be locked and stopped rotating after stopping, which is beneficial to avoiding the situation of the belt conveyor reversing or continuing to transmit forward, and is beneficial to avoiding the safety hazard caused by the belt conveyor transmitting forward after being reversely locked. Brief Description of the Drawings

[0056] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0057] Figure 2 It is a schematic diagram of the overall structure of the present invention after being sectioned.

[0058] Figure 3 For the present invention Figure 2 The enlarged schematic diagram of the structure at A in it.

[0059] Figure 4 For the present invention Figure 2 The enlarged schematic diagram of the structure at B in it.

[0060] Figure 5 It is a schematic diagram of the structure of the bidirectional locking component of the present invention.

[0061] Figure 6 For the present invention Figure 5 The enlarged schematic diagram of the structure at C in it.

[0062] Figure 7 It is a schematic diagram of the structure of the drive component of the present invention.

[0063] Figure 8 It is a schematic diagram of the installation structure of the second gear of the present invention.

[0064] Figure 9 It is a schematic diagram of the structure of the second movable frame of the present invention.

[0065] In the figure: 1, conveyor belt; 101, rotating roller; 102, support frame; 2, fixed frame; 201, installation groove; 202, first gear; 203, first rack; 204, first motor; 205, fixed plate; 3, first movable frame; 4, limit plate; 401, movable plate; 402, baffle; 403, torsion spring; 5, ratchet; 6, first cylinder; 7, second motor; 701, rotating frame; 8, second movable frame; 801, second rack; 802, sliding plate; 803, clamping block; 9, second gear; 901, third gear; 902, rotating block; 903, cross plug-in block; 904, fourth gear; 905, gear set; 906, second cylinder; 1001, magnet; 1002, iron sheet. Detailed implementation mode

[0066] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and other obvious variants can be thought of by those skilled in the art.

[0067] As Figures 1 to 9 shown, a tail locking device for a belt conveyor includes two fixed frames 2 symmetrically fixed at both ends of the support frame 102 at the tail of the belt conveyor, and further includes:

[0068] A first movable frame 3 is slidably installed between the two fixed frames 2 and is located inside the conveyor belt 1 of the belt conveyor;

[0069] Two driving components are respectively installed between the two ends of the first movable frame 3 and the two fixed frames 2 for driving the first movable frame 3 to move;

[0070] A two-way locking component is installed between the first movable frame 3 and the rotating roller 101 of the belt conveyor. The two-way locking component includes two ratchet mechanisms arranged in central symmetry for mechanically locking the rotating roller 101 in two directions;

[0071] During the use of the belt conveyor, if it is necessary to stop the conveying, it is necessary to lock it through the tail locking device to prevent the situation of potential safety hazards caused by the reverse conveying of the belt conveyor itself. The existing tail locking devices usually lock the belt conveyor unidirectionally, resulting in the belt conveyor not reversing but still running forward after being locked, which still poses a safety hazard to the locking of the belt conveyor;

[0072] This embodiment of the present invention can solve the above problems. The specific implementation is as follows. When the belt conveyor needs to be paused and locked, the driving component is started. The driving component drives the first movable frame 3 to move towards the rotating roller 101, so that the two-way locking component is activated. After the two-way locking component is activated, it locks the rotating roller 101 in two directions, so that the rotating roller 101 cannot rotate in either direction after stopping, so that the rotating roller 101 can be locked and stopped after stopping, which is beneficial to avoid the situation of the belt conveyor reversing or continuing to transmit forward, and is beneficial to avoid the situation of potential safety hazards caused by the belt conveyor transmitting forward after reverse locking;

[0073] It should be noted that multiple groups of two-way locking components can be provided to improve the supporting force for the rotating roller 101, which is beneficial to avoid the situation where the rotating roller 101 is damaged due to its inability to fully support itself when it is supported singly.

[0074] As an alternative embodiment, the driving component includes:

[0075] The first motor 204, fixed on the side wall of the fixed frame 2;

[0076] The first gear 202, rotatably installed inside the installation groove 201 opened inside the fixed frame 2;

[0077] The first rack 203, slidably installed inside the installation groove 201. One end of the first rack 203 is fixedly connected to the first movable frame 3, and the first rack 203 meshes with the first gear 202;

[0078] After the first motor 204 is started, it drives the connected first gear 202 to rotate through the output shaft. After the first gear 202 rotates, it drives the engaged first rack 203 to move. The first rack 203 drives the first movable frame 3 to move towards the rotating roller 101, so that the first movable frame 3 drives the two-way locking component to approach the rotating roller 101 to lock the rotating roller 101 in two directions.

[0079] As an alternative embodiment, the ratchet mechanism includes:

[0080] The ratchet 5, fixedly embedded on the side wall of the rotating roller 101 of the belt conveyor;

[0081] The movable plate 401, installed on the side wall of the first movable frame 3;

[0082] The baffle 402, fixed on the side wall of the movable plate 401;

[0083] The limiting plate 4, rotatably installed on the side wall of the movable plate 401. A torsion spring 403 is sleeved outside the rotating shaft of the limiting plate 4. The two ends of the torsion spring 403 are respectively fixedly connected to the limiting plate 4 and the movable plate 401, and the limiting plate 4 is adapted to the ratchet 5;

[0084] When the limiting plate 4 moves towards the ratchet wheel 5, if the ratchet wheel 5 rotates along the direction of the limiting plate 4, the limiting plate 4 is pushed and flipped under the action of the rotation of the ratchet wheel 5, so that the limiting plate 4 does not limit the ratchet wheel 5. When the ratchet wheel 5 rotates in the reverse direction, the end of the limiting plate 4 is stuck inside the inner groove of the ratchet wheel 5, so that the limiting plate 4 forms a support for the rotation of the ratchet wheel 5, so that the ratchet wheel 5 cannot rotate in the reverse direction;

[0085] If the ratchet wheel 5 rotates towards the limiting plate 4, the limiting plate 4 directly inserts into the inner groove of the ratchet wheel 5, so that the limiting plate 4 forms a support for the ratchet wheel 5, making the ratchet wheel 5 unable to continue rotating;

[0086] By setting two sets of ratchet mechanisms, when the limiting plate 4 moves towards the ratchet wheel 5, one limiting plate 4 rotates relative to the corresponding ratchet wheel 5 and directly inserts and limits the corresponding ratchet wheel 5. When the corresponding ratchet wheel 5 stops rotating and reverses, the other limiting plate 4 will insert into the inner groove of the corresponding ratchet wheel 5, so as to limit the two ratchet wheels 5 in two directions, so as to realize the two-way limit of the rotating roller 101, which is beneficial to avoid the reverse rotation or forward continuous rotation of the rotating roller 101, and thus beneficial to improve safety.

[0087] As an optional embodiment, the ratchet mechanism further includes:

[0088] Two first cylinders 6 are respectively symmetrically installed on the side walls of the first movable frame 3 through the mounting frames, and the first cylinders 6 drive the movable plate 401 to move vertically through the telescopic rods;

[0089] Two pressure sensors are respectively installed at the end parts of the two limiting plates 4 facing the ratchet wheel 5;

[0090] The setting of the two ratchet mechanisms makes it impossible for the two limiting plates 4 to be completely inserted into the inner groove of the ratchet wheel 5 at the same time for complete limitation, so that the ratchet wheel 5 is difficult to be completely locked in a certain direction, but will shake within a certain range, resulting in incomplete locking of the belt conveyor;

[0091] This embodiment of the present invention can solve the above problems. The specific implementation is as follows. When one of the limiting plates 4 is completely inserted into the inner groove of the ratchet wheel 5 to support it, the pressure sensor at the end of the limiting plate 4 is pressed against the inner groove side wall of the ratchet wheel 5, causing the pressure sensor to be pressurized. At the same time, if the other limiting plate 4 is not completely inserted into the inner groove of the ratchet wheel 5, the pressure sensor at the end of the limiting plate 4 is not pressed against the inner wall of the inner groove of the ratchet wheel 5, and the pressure sensor is not pressurized. A control unit is installed on the first movable frame 3. When the control unit receives the pressure information of the pressure sensor, it controls the first cylinder 6 corresponding to the limiting plate 4 where the pressure sensor is not pressurized to start. After the first cylinder 6 starts, the limiting plate 4 is pushed vertically towards the direction close to the other limiting plate 4 through the telescopic rod, thereby driving the limiting plate 4 to move and insert into the inner groove of the ratchet wheel 5, so that after the limiting plate 4 moves vertically, it is completely inserted into the inner groove of the ratchet wheel 5, thus realizing the support for the other ratchet wheel 5, and realizing the complete support for the two ratchet wheels 5, which is beneficial to fully lock and position the rotating roller 101, and is beneficial to reducing the safety hazards caused by the shaking of the rotating roller 101 after stopping.

[0092] As an alternative embodiment, the ratchet mechanism further includes:

[0093] Two magnets 1001, which are respectively fixed on the side walls of the corresponding limiting plates 4;

[0094] Two groups of iron sheets 1002. The iron sheets 1002 in the same group are arranged in a circular array, and the iron sheets 1002 in the same group are fixed on the inner groove side walls of the same ratchet wheel 5;

[0095] When the limiting plate 4 approaches the ratchet wheel 5, under the magnetic adsorption force of the magnet 1001 and the iron sheet 1002, the limiting plate 4 has a tendency to insert into the inner groove of the ratchet wheel 5, which is beneficial to avoiding the situation that the limiting plate 4 is displaced from the ratchet wheel 5 due to the damage of the torsion spring 403, resulting in the failure to achieve support, and is beneficial to improving the stability of the limiting plate 4 to support the ratchet wheel 5 to lock the rotating roller 101.

[0096] As an alternative embodiment, the ratchet mechanism further includes:

[0097] Two second motors 7, both of which are fixed on the side wall of the first movable frame 3;

[0098] Two rotating frames 701, which are respectively rotatably installed on the side wall of the first movable frame 3. The two rotating frames 701 drive the two mounting frames to rotate respectively, and the two second motors 7 drive the two rotating frames 701 to rotate respectively;

[0099] After the second motor 7 starts, it drives the rotating frame 701 to rotate through the output shaft. After the rotating frame 701 rotates, it drives the mounting frame to rotate, and the mounting frame drives the movable plate 401 and the limiting plate 4 to rotate, so that the limiting plate 4 disengages from the ratchet wheel 5. Thus, it is possible to adjust one of the limiting plates 4 to disengage from the corresponding ratchet wheel 5, thereby realizing the adjustment of the one-way limit locking of the rotating roller 101, so that the two-way limit and one-way limit of the rotating roller 101 can be selectively adjusted.

[0100] As an alternative embodiment, it further includes:

[0101] A second movable frame 8, which is slidably installed between two fixed frames 2 through sliding plates 802 fixed at both ends. A friction plate is fixed on the inner wall of the second movable frame 8;

[0102] Two second racks 801 are respectively fixed at both ends of the two second movable frames 8. The two second racks 801 are respectively engaged with the first gears 202 in the two drive assemblies. When the first gears 202 rotate, they drive the second racks 801 to move in the opposite direction to the first rack 203;

[0103] After the first gear 202 rotates, it drives the engaged second rack 801 to move towards the fixed frame 2. The second rack 801 drives the second movable frame 8 to move towards the conveyor belt 1, so that the friction plate on the inner wall of the second movable frame 8 contacts and presses the conveyor belt 1, thereby hindering the conveyor belt 1 through friction, so that the conveyor belt 1 can also be limited. Thus, it is beneficial to avoid locking the conveyor belt 1 synchronously after locking the rotating roller 101, which is beneficial to avoiding the occurrence of transmission deviation of the conveyor belt 1 itself, and thus beneficial to improving the stability of locking the belt conveyor.

[0104] As an alternative embodiment, it further includes:

[0105] A second gear 9, which is rotatably installed inside the installation groove 201. The second gear 9 is coaxial with the first gear 202 and is connected to each other through a one-way bearing;

[0106] A fourth gear 904, which is rotatably installed inside the installation groove 201 and is engaged with the second gear 9;

[0107] A rotating block 902, which is rotatably inserted into the fixed frame 2. The end of the rotating block 902 is inserted and connected to the rotating roller 101 through a cross-shaped insertion block 903;

[0108] A third gear 901, which is fixed on the outer wall of the rotating block 902. The third gear 901 is engaged and matched with the fourth gear 904;

[0109] When the rotating roller 101 rotates, it drives the rotating block 902 to rotate through the cross-shaped insertion block 903. After the rotating block 902 rotates, it drives the third gear 901 to rotate. The third gear 901 drives the fourth gear 904 meshing with it to rotate. The fourth gear 904 drives the second gear 9 meshing with it to rotate. The second gear 9 and the first gear 202 are connected by a one-way bearing. When the rotating roller 101 rotates forward, the rotation of the rotating roller 101 driving the second gear 9 will not drive the first gear 202 to rotate. When the rotating roller 101 rotates reversely, the rotation of the rotating roller 101 driving the second gear 9 will drive the first gear 202 to rotate through the one-way bearing, thereby driving the drive assembly to start. This is beneficial for automatically starting the drive assembly and driving the two-way locking assembly to start to lock the rotating roller 101 when the rotating roller 101 reverses during rotation. Thus, when a reverse error occurs, the two-way locking assembly can be triggered to lock the rotating roller 101 without manual operation by the staff.

[0110] A fixing plate 205 is installed on the installation groove 201 of the fixing frame 2, which can close the installation groove 201 after the internal structure of the installation groove 201 is installed.

[0111] As an alternative embodiment, it further includes:

[0112] A gear set 905 is installed inside the installation groove 201. After the third gear 901 meshes with the gear set 905, the gear set 905 drives the second gear 9 to rotate;

[0113] A second cylinder 906 is fixed on the side wall of the support frame 102, and drives the rotating block 902 to move through the telescopic rod to drive the fourth gear 904 to switch the meshing with the gear set 905 and the fourth gear 904;

[0114] When the rotating roller 101 is in the normal rotating state, that is, when rotating reversely, the second cylinder 906 is started. The second cylinder 906 drives the rotating block 902 to move through the telescopic rod, so that the rotating block 902 drives the fourth gear 904 to move and switch to mesh with the gear set 905. Thus, when the rotating roller 101 rotates, the second gear 9 is driven to rotate through the meshing of the fourth gear 904 and the gear set 905. Therefore, the reversely rotating rotating roller 101 can still drive the second gear 9 to rotate forward without driving the first gear 202 to rotate. After the rotating direction of the rotating roller 101 is switched, it will drive the second gear 9 to rotate reversely, thereby driving the first gear 202 to rotate, and triggering the two-way locking assembly to start to lock the rotating roller 101;

[0115] In summary, when the rotating roller 101 rotates in two directions, the two-way locking assembly can be triggered to start to lock the rotating roller 101 after suddenly reversing itself.

[0116] As an alternative embodiment, it further includes:

[0117] A number of clamping blocks 803 are fixedly arranged on the inner wall of the second movable frame 8 in a curved array;

[0118] Two positioning bars are symmetrically fixed on both sides of the conveyor belt 1, and a number of clamping grooves adapted to the clamping blocks 803 are formed on the positioning bars;

[0119] When the second movable frame 8 moves towards the conveyor belt 1, the second movable frame 8 drives the clamping blocks 803 to move towards the clamping grooves. When the clamping blocks 803 are misaligned with the clamping grooves, if the conveyor belt 1 does not shift, the clamping blocks 803 and the clamping grooves do not affect the locking of the conveyor belt 1. If the conveyor belt 1 shifts, the shift of the conveyor belt 1 drives the clamping grooves to shift, so that the clamping blocks 803 are clamped and limited with the shift of the clamping grooves, thereby realizing the limitation of the conveyor belt 1, which is beneficial to avoiding the situation that the conveyor belt 1 shifts after the rotating roller 101 is locked.

[0120] The working principle of the present invention: When the belt conveyor needs to be paused and locked, the driving assembly is started, and the driving assembly drives the first movable frame 3 to move towards the rotating roller 101, so that the bidirectional locking assembly is started. After the bidirectional locking assembly is started, the rotating roller 101 is locked bidirectionally, so that the rotating roller 101 cannot rotate in both directions after stopping, so that the rotating roller 101 can be locked and stopped rotating after stopping, which is beneficial to avoiding the situation that the belt conveyor reverses or continues to transmit forward, and is beneficial to avoiding the situation that the belt conveyor causes potential safety hazards when transmitting forward after being reversely locked.

[0121] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A belt conveyor tail locking device, comprising two fixing frames (2), symmetrically fixed at two ends of a belt conveyor tail support frame (102), characterized in that: Also includes: A first movable frame (3) is slidably mounted between the two fixed frames (2) and is located inside the conveyor belt (1) of the belt conveyor; Two driving components, respectively installed at two ends of the first movable frame (3) and between the two fixed frames (2), and used for driving the first movable frame (3) to move; A bidirectional locking assembly is installed between the first movable frame (3) and the rotating roller (101) of the belt conveyor, and the bidirectional locking assembly comprises two ratchet mechanisms arranged in a centrally symmetrical manner, and is used to mechanically lock the rotating roller (101) in two directions.

2. A belt conveyor tail locking device according to claim 1, characterized in that: The drive assembly comprises: A first motor (204) is fixed on a side wall of the fixing frame (2); A first gear (202) is rotatably mounted inside a mounting groove (201) provided inside the fixing frame (2); The first rack (203) is slidably mounted inside the mounting groove (201), one end of the first rack (203) is fixedly connected to the first movable frame (3), and the first rack (203) is meshed with the first gear (202).

3. A belt conveyor tail locking device according to claim 2, characterized in that: The ratchet mechanism comprises: A ratchet wheel (5) is fixedly embedded on the side wall of the rotating roller (101) of the belt conveyor; A movable plate (401) is mounted on a side wall of the first movable frame (3); A baffle (402) fixed on the side wall of the movable plate (401); The limiting plate (4) is rotatably mounted on the side wall of the movable plate (401); the outer ring of the rotating shaft of the limiting plate (4) is provided with a torsion spring (403); the two ends of the torsion spring (403) are respectively fixedly connected to the limiting plate (4) and the movable plate (401); the limiting plate (4) is adapted to the ratchet (5).

4. A belt conveyor tail locking device according to claim 3, characterized in that: The ratchet mechanism also includes: Two first cylinders (6) are respectively mounted on the side walls of the first movable frame (3) in a centrally symmetrical manner through mounting frames, and the first cylinders (6) drive the movable plate (401) to move vertically through telescopic rods; Two pressure sensors are respectively mounted on one end of the two limit plates (4) facing the ratchet (5).

5. A belt conveyor tail locking device according to claim 4, characterized in that: The ratchet mechanism also includes: Two magnets (1001) are respectively fixed on the side walls of the corresponding limiting plates (4); Two groups of iron sheets (1002), the iron sheets (1002) in the same group are arranged in a circular array, and the iron sheets (1002) in the same group are fixed on the side walls of each inner groove of the same ratchet (5).

6. A belt conveyor tail locking device according to claim 5, characterized in that: The ratchet mechanism also includes: Two second motors (7) are both fixed on the side walls of the first movable frame (3); The two rotating frames (701) are respectively rotatably mounted on the side walls of the first movable frame (3); the two rotating frames (701) respectively drive the two mounting frames to rotate; and the two second motors (7) respectively drive the two rotating frames (701) to rotate.

7. The belt conveyor tail locking device according to claim 2, characterized in that: Also includes: A second movable frame (8) is slidably mounted between the two fixed frames (2) via sliding plates (802) fixed at both ends, and a friction plate is fixed on the inner wall of the second movable frame (8); Two second racks (801) are respectively fixed at the two ends of the two second movable frames (8); the two second racks (801) are respectively meshed with the first gears (202) in the two driving assemblies; when the first gear (202) rotates, the second racks (801) and the first rack (203) are driven to move in opposite directions.

8. The belt conveyor tail locking device according to claim 2, characterized in that: Also includes: A second gear (9) is rotatably mounted inside the mounting groove (201); the second gear (9) is coaxial with the first gear (202) and is connected to each other via a one-way bearing; a fourth gear (904) rotatably mounted inside the mounting groove (201) and meshing with the second gear (9); A rotating block (902) is rotatably inserted inside the fixed frame (2), and an end of the rotating block (902) is plug-connected with the rotating roller (101) via a cross plug-in block (903); The third gear (901) is fixed on the outer wall of the rotating block (902), and the third gear (901) is meshed and matched with the fourth gear (904).

9. The belt conveyor tail locking device according to claim 8, characterized in that: Also includes: A gear set (905) is installed inside the installation groove (201), and after the third gear (901) is meshed with the gear set (905), the gear set (905) drives the second gear (9) to rotate; The second cylinder (906) is fixed on the side wall of the support frame (102), and drives the rotating block (902) to move through the telescopic rod to drive the fourth gear (904) to switch the meshing with the gear set (905) and the fourth gear (904).

10. The belt conveyor tail locking device according to claim 7, characterized in that: Also includes: A plurality of positioning blocks (803) are fixed on the inner wall of the second movable frame (8) in a curved array; Two positioning bars are symmetrically fixed on both sides of the conveyor belt (1), and the positioning bars are provided with a plurality of positioning grooves adapted to the positioning blocks (803).

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