CN111470456B - Speed limiting device for stacking machine - Google Patents
Speed limiting device for stacking machine Download PDFInfo
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- CN111470456B CN111470456B CN202010497118.5A CN202010497118A CN111470456B CN 111470456 B CN111470456 B CN 111470456B CN 202010497118 A CN202010497118 A CN 202010497118A CN 111470456 B CN111470456 B CN 111470456B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
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Abstract
The invention belongs to the field of speed limiting devices, in particular to a speed limiting device for a stacker, which aims at solving the problem that when a steel wire rope of the existing stacker has no speed limiting device, a lifting platform can rapidly descend to cause large collision when the steel wire rope is broken, and the stacker comprises a bottom plate, wherein two vertical plates are fixedly arranged at the top of the bottom plate, sliding grooves are respectively formed in one sides, close to the two vertical plates, of the two vertical plates, the same lifting platform is arranged in the two sliding grooves in a sliding mode, two sliding holes are formed in the top of the lifting platform, sliding plates are respectively and slidably arranged in the two sliding holes, mounting blocks are respectively arranged at the tops of the two sliding plates, one ends of the steel wire ropes are respectively and fixedly connected with the tops of the two mounting blocks, and the other ends of the two steel wire ropes are respectively and fixedly connected with, meanwhile, the alarm can be given, the structure is simple, and the use is convenient.
Description
Technical Field
The invention relates to the technical field of speed limiting devices, in particular to a speed limiting device for a stacking machine.
Background
The stacker crane is also called a stacker, and is a special crane which uses a fork or a string rod as a fetching device to grab, carry and stack goods in warehouses, workshops and the like or pick and place unit goods from a high-rise goods shelf, and the stacker crane is storage equipment.
The existing stacker crane is not provided with a speed limiting device, when a steel wire rope is broken, a lifting platform can rapidly descend to cause large impact, and therefore the speed limiting device for the stacker crane is provided for solving the problems.
Disclosure of Invention
The invention aims to solve the problem that a stacker crane in the prior art is not provided with a speed limiting device, and when a steel wire rope is broken, a lifting platform can rapidly descend to cause large impact.
In order to achieve the purpose, the invention adopts the following technical scheme:
a speed limiting device for a stacking machine comprises a bottom plate, wherein two vertical plates are fixedly mounted at the top of the bottom plate, sliding grooves are formed in one sides, close to each other, of the two vertical plates, a same lifting platform is slidably mounted in the two sliding grooves, two sliding holes are formed in the top of the lifting platform, sliding plates are slidably mounted in the two sliding holes, mounting blocks are mounted at the tops of the two sliding plates, one ends of steel wire ropes are fixedly connected to the tops of the two mounting blocks, the other ends of the two steel wire ropes are fixedly connected with a same rotating drum, grooves are formed in two sides of the lifting platform, connecting plates are slidably mounted in the two grooves, the tops of the two connecting plates are fixedly connected with the bottoms of the two sliding plates respectively, one ends of a plurality of first springs are fixedly mounted at the tops of the connecting plates, the other ends of the first springs are fixedly connected with the inner, equal threaded connection has the stripper plate on two bull sticks, the outside of two bull sticks is all fixed to overlap and is equipped with first gear, it has first rack to all mesh on two first gears, the top of two first racks respectively with the bottom fixed connection of two connecting plates, one side fixed mounting of a connecting plate in two connecting plates has the lifter plate, the bottom fixed mounting of lifter plate has first conducting block, the mounting groove has been seted up on one side inner wall of recess, fixed mounting has the second conducting block on the bottom inner wall of mounting groove, last fixedly connected with power and the alarm of lift platform, first conducting block, a power supply, alarm and second conducting block pass through the wire and establish ties in proper order.
Preferably, the inner wall of one side that two recesses are close to each other has all seted up the spout, there are first push pedal and second push pedal in two spouts respectively slidable mounting, there are first ejector pad and second ejector pad bottom difference fixed mounting of first push pedal and second push pedal, lifting platform's bottom fixed mounting has electric putter, electric putter's output shaft and one side fixed connection of first ejector pad, lifting platform's bottom is rotated and is installed the connecting axle, the top fixed mounting of connecting axle has the second gear, one side fixed mounting of first push pedal has the second rack, the second rack meshes with the second gear mutually, the bottom fixed mounting of connecting axle has first conical gear, the meshing has second conical gear on the first conical gear, the one end fixed mounting of second conical gear has the transfer line, transfer line and second ejector pad threaded connection.
Preferably, fixed mounting has correlation type photoelectric sensor and controller on the top inner wall of mounting groove, is equipped with the dog in the middle of the correlation type photoelectric sensor, the bottom of dog and the top fixed connection of lifter plate, correlation type photoelectric sensor and electric putter all with controller electric connection.
Preferably, a plurality of locating blocks are fixedly mounted at the tops of the two connecting plates, and the tops of the locating blocks are in contact with the inner wall of the top of the groove.
Preferably, the guide way has all been seted up to the lateral wall of two recesses, and the equal fixed mounting in both sides of two stripper plates has the guide block, and the screw thread groove has all been seted up to the inner wall sliding connection of guide block and guide way in the one side that two stripper plates are close to each other, and the screw thread of two screw thread grooves is revolved to opposite, two bull sticks respectively with two screw thread groove threaded connection.
Preferably, the top has all been seted up to one side that two slides are close to each other and has been the open-ended spread groove, and two installation pieces are pegged graft with two spread grooves respectively, have all seted up one side on the both sides inner wall of two spread grooves and have established to open-ended restriction groove, and the equal fixed mounting in both sides of two installation pieces has the restriction piece, and the restriction piece is pegged graft with the restriction groove.
Preferably, reset grooves have been all seted up on the bottom inner wall of two spread grooves, and two equal slidable mounting that reset in the groove have the piece that resets, and one side that two pieces that reset kept away from each other is respectively with two one side fixed connection that the installation piece is close to each other.
Preferably, the bottoms of the two reset blocks are fixedly provided with one ends of the second springs, and the other ends of the two second springs are fixedly connected with the inner walls of the bottoms of the two reset grooves respectively.
Preferably, two bearings are fixedly mounted at the bottom of the lifting platform, and the outer side of the transmission rod is fixedly connected with the inner rings of the bearings.
Preferably, a motor is fixedly mounted on one side of the vertical plate, and an output shaft of the motor is fixedly connected with one end of the rotary drum.
Compared with the prior art, the invention has the beneficial effects that:
when the lifting platform is used, the motor drives the rotary drum to rotate, the rotary drum winds the steel wire rope and further drives the lifting platform to rise, at the moment, the first springs are extruded due to the dead weight of the lifting platform, the top of the positioning block is in contact with the inner wall of the top of the groove, when the steel wire rope is broken, the first springs are released from a contraction state, the two connecting plates are moved downwards, the two connecting plates drive the two first racks to move downwards, the two first gears rotate, the two first gears drive the two rotary rods to rotate, the two extrusion plates are far away from each other, one sides, far away from each other, of the two extrusion plates and the inner wall of one side, far away from each other, of the two sliding grooves are extruded with each other, friction force is increased;
according to the scheme, the lifting plate is driven by the connecting plate to move downwards, the lifting plate drives the first conductive block to be in contact with the second conductive block, and at the moment, the first conductive block, the power supply and the alarm (which is conducted with the second conductive block, and the alarm is electrified and sounded to give an alarm to people;
according to the scheme, the lifting plate drives the stop block to move downwards, the correlation type photoelectric sensor is conducted, the controller controls the electric push rod to be started, the electric push rod pulls the first push block to move leftwards, the first push block drives the first push plate to slide leftwards, at the moment, the second rack on the first push plate enables the second gear to rotate, the second gear drives the connecting shaft to rotate, the connecting shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the transmission rod to rotate, the second push block in threaded connection with the transmission rod slides rightwards, the second push block drives the second push plate to slide rightwards, the first push plate and the second push plate are mutually far away from side walls of the two sliding grooves to extrude with each other, friction force is increased, the descending speed of the lifting platform is further slowed down, and large collision is avoided;
the invention can limit the descending speed of the lifting platform when the steel wire rope is broken, avoids causing larger collision, can alarm at the same time, and has simple structure and convenient use.
Drawings
Fig. 1 is a schematic structural view of a speed limiting device for a stacker according to the present invention;
fig. 2 is a schematic structural view of a part a of a speed limiting device for a stacker according to the present invention;
fig. 3 is a schematic structural diagram of a part B of a speed limiting device for a stacker according to the present invention;
fig. 4 is a schematic structural diagram of a part C of a speed limiting device for a stacker according to the present invention;
fig. 5 is a schematic side view of the connection of the sliding plate and the mounting block of the speed limiting device for the stacker according to the present invention.
In the figure: the device comprises a base plate 1, a vertical plate 2, a sliding groove 3, a lifting platform 4, a sliding hole 5, a sliding plate 6, a mounting block 7, a steel wire rope 8, a motor 9, a rotating drum 10, a connecting plate 11, a groove 12, a positioning block 13, a first spring 14, a first rack 15, a rotating rod 16, a first gear 17, a squeezing plate 18, a mounting groove 19, a correlation photoelectric sensor 20, a stop 21, a lifting plate 22, a first conductive block 23, a second conductive block 24, an alarm 25, a controller 26, an electric push rod 27, a sliding groove 28, a first push plate 29, a first push block 30, a second push block 31, a second push block 32, a transmission rod 33, a second bevel gear 34, a connecting shaft 35, a first bevel gear 36, a second gear 37, a limiting groove 38, a limiting block 39, a resetting block 40 and a second spring 41.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-5, a speed limiting device for a stacker comprises a bottom plate 1, wherein two vertical plates 2 are fixedly installed at the top of the bottom plate 1, sliding grooves 3 are respectively formed in one sides, close to each other, of the two vertical plates 2, the same lifting platform 4 is installed in the two sliding grooves 3 in a sliding manner, two sliding holes 5 are formed in the top of the lifting platform 4, sliding plates 6 are respectively installed in the two sliding holes 5 in a sliding manner, installation blocks 7 are respectively installed at the tops of the two sliding plates 6, one ends of steel wire ropes 8 are respectively and fixedly connected to the tops of the two installation blocks 7, the same rotary drum 10 is fixedly connected to the other ends of the two steel wire ropes 8, grooves 12 are respectively formed in the two sides of the lifting platform 4, connecting plates 11 are respectively and slidably installed in the two grooves 12, the tops of the two connecting plates 11 are respectively, the other end of the first spring 14 is fixedly connected with the inner wall of the top of the groove 12, the inner walls of one sides of the two grooves 12 close to each other are rotatably provided with rotating rods 16, the two rotating rods 16 are in threaded connection with extrusion plates 18, the outer sides of the two rotating rods 16 are fixedly sleeved with first gears 17, the two first gears 17 are respectively engaged with first racks 15, the tops of the two first racks 15 are respectively fixedly connected with the bottoms of the two connecting plates 11, one side of one connecting plate 11 of the two connecting plates 11 is fixedly provided with a lifting plate 22, the bottom of the lifting plate 22 is fixedly provided with a first conductive block 23, the inner wall of one side of the groove 12 is provided with a mounting groove 19, the inner wall of the bottom of the mounting groove 19 is fixedly provided with a second conductive block 24, the lifting platform 4 is fixedly connected with a power supply and an alarm 25, the first conductive block 23 and, the alarm 25 and the second conductive block 24 are connected in series in sequence through a wire.
In the invention, the inner walls of the two adjacent sides of the two grooves 12 are both provided with a sliding groove 28, a first push plate 29 and a second push plate 31 are respectively arranged in the two sliding grooves 28 in a sliding manner, the bottoms of the first push plate 29 and the second push plate 31 are respectively fixedly provided with a first push block 30 and a second push block 32, the bottom of the lifting platform 4 is fixedly provided with an electric push rod 27, the output shaft of the electric push rod 27 is fixedly connected with one side of the first push block 30, the bottom of the lifting platform 4 is rotatably provided with a connecting shaft 35, the top of the connecting shaft 35 is fixedly provided with a second gear 37, one side of the first push plate 29 is fixedly provided with a second rack, the second rack is meshed with the second gear 37, the bottom of the connecting shaft 35 is fixedly provided with a first conical gear 36, the first conical gear 36 is meshed with a second conical gear 34, one end of the second conical gear 34 is fixedly provided with a transmission rod 33, and, through the mutual extrusion of keeping away from each other and the lateral wall of two spout 3 of first push pedal 29 and second push pedal 31, increase frictional force further slows down the falling speed of lift platform 4, avoids causing great collision.
In the invention, an opposite type photoelectric sensor 20 and a controller 26 are fixedly arranged on the inner wall of the top of the mounting groove 19, a stop 21 is arranged in the middle of the opposite type photoelectric sensor 20, the bottom of the stop 21 is fixedly connected with the top of a lifting plate 22, the opposite type photoelectric sensor 20 and an electric push rod 27 are both electrically connected with the controller 26, the stop 21 is driven by the lifting plate 22 to move downwards, the opposite type photoelectric sensor 20 is conducted, and the controller 26 controls the electric push rod 27 to start.
In the invention, a plurality of positioning blocks 13 are fixedly arranged on the tops of the two connecting plates 11, the tops of the positioning blocks 13 are in contact with the inner wall of the top of the groove 12, and the positioning blocks 13 are used for positioning the connecting plates 11.
In the invention, guide grooves are formed in the side walls of the two grooves 12, guide blocks are fixedly mounted on two sides of the two extrusion plates 18, the guide blocks are connected with the inner walls of the guide grooves in a sliding mode, threaded grooves are formed in the sides, close to each other, of the two extrusion plates 18, the thread turning directions of the two threaded grooves are opposite, the two rotating rods 16 are respectively in threaded connection with the two threaded grooves, and the guide blocks and the guide grooves enable the extrusion plates 18 to only move horizontally.
In the invention, connecting grooves with openings at the tops are respectively formed in the mutually close sides of the two sliding plates 6, the two mounting blocks 7 are respectively inserted into the two connecting grooves, limiting grooves 38 with openings at one sides are respectively formed in the inner walls of the two sides of the two connecting grooves, limiting blocks 39 are fixedly mounted on the two sides of the two mounting blocks 7, and the limiting blocks 39 are inserted into the limiting grooves 38 to position the mounting blocks 7.
In the invention, the inner walls of the bottoms of the two connecting grooves are respectively provided with a resetting groove, the resetting blocks 40 are respectively arranged in the two resetting grooves in a sliding manner, one sides, far away from each other, of the two resetting blocks 40 are respectively fixedly connected with one sides, close to each other, of the two mounting blocks 7, and the resetting blocks 40 limit the mounting blocks 7.
In the invention, the bottoms of the two reset blocks 40 are fixedly provided with one ends of the second springs 41, the other ends of the two second springs 41 are respectively and fixedly connected with the inner walls of the bottoms of the two reset grooves, and the second springs 41 reset the reset blocks 40.
In the invention, two bearings are fixedly arranged at the bottom of the lifting platform 4, the outer side of the transmission rod 33 is fixedly connected with the inner ring of the bearing, and the transmission rod 33 is stably rotated by the bearings.
In the invention, a motor 9 is fixedly arranged on one side of a vertical plate 2, an output shaft of the motor 9 is fixedly connected with one end of a rotary drum 10, and the motor 9 drives the rotary drum 10 to rotate.
Example two
Referring to fig. 1-5, a speed limiting device for a stacker comprises a bottom plate 1, wherein two vertical plates 2 are fixedly installed at the top of the bottom plate 1 through bolts, sliding grooves 3 are respectively formed in one sides, close to each other, of the two vertical plates 2, the same lifting platform 4 is slidably installed in the two sliding grooves 3, two sliding holes 5 are formed in the top of the lifting platform 4, sliding plates 6 are respectively slidably installed in the two sliding holes 5, installation blocks 7 are respectively installed at the tops of the two sliding plates 6, one ends of steel wire ropes 8 are respectively fixedly connected to the tops of the two installation blocks 7, the other ends of the two steel wire ropes 8 are fixedly connected to the same rotary drum 10, grooves 12 are respectively formed in the two sides of the lifting platform 4, connecting plates 11 are respectively slidably installed in the two grooves 12, the tops of the two connecting plates 11 are respectively fixedly connected to the bottoms of the two sliding plates, the other end of the first spring 14 is fixedly connected with the inner wall of the top of the groove 12, the inner walls of the two grooves 12 close to each other are rotatably provided with rotating rods 16, the two rotating rods 16 are in threaded connection with extrusion plates 18, the outer sides of the two rotating rods 16 are fixedly sleeved with first gears 17, the two first gears 17 are respectively engaged with first racks 15, the tops of the two first racks 15 are respectively fixedly connected with the bottoms of the two connecting plates 11, one side of one connecting plate 11 of the two connecting plates 11 is fixedly provided with a lifting plate 22 through bolts, the bottom of the lifting plate 22 is fixedly provided with a first conductive block 23 through bolts, the inner wall of one side of the groove 12 is provided with a mounting groove 19, the inner wall of the bottom of the mounting groove 19 is fixedly provided with a second conductive block 24 through bolts, the lifting platform 4 is fixedly connected with a power supply and an alarm 25, the first conductive block 23 and the power supply, the alarm 25 and the second conductive block 24 are connected in series in sequence through a wire.
In the invention, the inner walls of the two adjacent sides of the two grooves 12 are both provided with a sliding groove 28, a first pushing plate 29 and a second pushing plate 31 are respectively arranged in the two sliding grooves 28 in a sliding manner, the bottoms of the first pushing plate 29 and the second pushing plate 31 are respectively fixedly provided with a first pushing block 30 and a second pushing block 32 through bolts, the bottom of the lifting platform 4 is fixedly provided with an electric push rod 27 through bolts, the output shaft of the electric push rod 27 is fixedly connected with one side of the first pushing block 30, the bottom of the lifting platform 4 is rotatably provided with a connecting shaft 35, the top of the connecting shaft 35 is fixedly provided with a second gear 37 through bolts, one side of the first pushing plate 29 is fixedly provided with a second rack through bolts, the second rack is meshed with the second gear 37, the bottom of the connecting shaft 35 is fixedly provided with a first conical gear 36 through bolts, the first conical gear 36 is meshed with a second conical gear 34, one end of the second conical gear 34 is, the transmission rod 33 is in threaded connection with the second pushing block 32, and the first pushing plate 29 and the second pushing plate 31 are far away from each other to be mutually extruded with the side walls of the two sliding grooves 3, so that friction force is increased, the descending speed of the lifting platform 4 is further slowed down, and great collision is avoided.
In the invention, the correlation type photoelectric sensor 20 and the controller 26 are fixedly arranged on the inner wall of the top of the mounting groove 19 through bolts, the stopper 21 is arranged in the middle of the correlation type photoelectric sensor 20, the bottom of the stopper 21 is fixedly connected with the top of the lifting plate 22, the correlation type photoelectric sensor 20 and the electric push rod 27 are both electrically connected with the controller 26, the stopper 21 is driven by the lifting plate 22 to move downwards, the correlation type photoelectric sensor 20 is conducted, and the controller 26 controls the electric push rod 27 to start.
In the invention, a plurality of positioning blocks 13 are fixedly arranged on the tops of the two connecting plates 11 through bolts, the tops of the positioning blocks 13 are all contacted with the inner wall of the top of the groove 12, and the positioning blocks 13 are used for positioning the connecting plates 11.
In the invention, the side walls of the two grooves 12 are both provided with guide grooves, two sides of the two extrusion plates 18 are both fixedly provided with guide blocks through bolts, the guide blocks are in sliding connection with the inner walls of the guide grooves, the sides of the two extrusion plates 18 close to each other are both provided with thread grooves, the thread directions of the two thread grooves are opposite, the two rotating rods 16 are respectively in threaded connection with the two thread grooves, and the guide blocks and the guide grooves enable the extrusion plates 18 to only horizontally move.
In the invention, connecting grooves with openings at the tops are respectively formed in the mutually close sides of the two sliding plates 6, the two mounting blocks 7 are respectively inserted into the two connecting grooves, limiting grooves 38 with openings at one sides are respectively formed in the inner walls of the two sides of the two connecting grooves, limiting blocks 39 are fixedly mounted on the two sides of the two mounting blocks 7 through bolts, and the limiting blocks 39 are inserted into the limiting grooves 38 to position the mounting blocks 7.
In the invention, the inner walls of the bottoms of the two connecting grooves are respectively provided with a resetting groove, the resetting blocks 40 are respectively arranged in the two resetting grooves in a sliding manner, one sides, far away from each other, of the two resetting blocks 40 are respectively fixedly connected with one sides, close to each other, of the two mounting blocks 7, and the resetting blocks 40 limit the mounting blocks 7.
In the invention, the bottoms of the two reset blocks 40 are fixedly provided with one ends of the second springs 41 through bolts, the other ends of the two second springs 41 are respectively and fixedly connected with the inner walls of the bottoms of the two reset grooves, and the second springs 41 reset the reset blocks 40.
In the invention, two bearings are fixedly arranged at the bottom of the lifting platform 4 through bolts, the outer side of the transmission rod 33 is fixedly connected with the inner ring of the bearing, and the transmission rod 33 stably rotates through the bearings.
In the invention, a motor 9 is fixedly arranged on one side of a vertical plate 2 through a bolt, an output shaft of the motor 9 is fixedly connected with one end of a rotary drum 10, and the motor 9 drives the rotary drum 10 to rotate.
In the invention, when in use, the motor 9 drives the rotary drum 10 to rotate, the rotary drum 10 winds the steel wire rope 8 and further drives the lifting platform 4 to rise, at the moment, the plurality of first springs 14 are extruded due to the self weight of the lifting platform 4, so that the top of the positioning block 13 is contacted with the inner wall of the top of the groove 12, when the steel wire rope 8 is broken, the plurality of first springs 14 are released from a contraction state, so that the two connecting plates 11 move downwards, the two connecting plates 11 drive the two first racks 15 to move downwards, so that the two first gears 17 rotate, the two first gears 17 drive the two rotating rods 16 to rotate, so that the two extrusion plates 18 are far away from each other, one side of the two extrusion plates 18, which is far away from each other, is mutually extruded with the inner wall of one side of the two sliding grooves 3, so as to increase friction force and slow down the descending speed of the lifting platform, the lifting plate 22 drives the first conductive block 23 to contact with the second conductive block 24, at this time, the first conductive block 23, the power supply, the alarm 25 and the second conductive block 24 are conducted, the alarm 25 is powered on and sounds to alarm people, the lifting plate 22 drives the stopper 21 to move downwards, the correlation type photoelectric sensor 20 is conducted, the controller 26 controls the electric push rod 27 to be started, the electric push rod 27 pulls the first push block 30 to move leftwards, the first push block 30 drives the first push plate 29 to slide leftwards, at this time, the second rack on the first push plate 29 drives the second gear 37 to rotate, the second gear 37 drives the connecting shaft 35 to rotate, the connecting shaft 35 drives the first bevel gear 36 to rotate, the first bevel gear 36 drives the second bevel gear 34 to rotate, the second bevel push plate 34 drives the transmission rod 33 to rotate, so that the second push block 32 in threaded connection with the transmission rod 33 slides rightwards, the second push block 32 drives the second push block 31 to slide rightwards, through the mutual extrusion of keeping away from each other and the lateral wall of two spout 3 of first push pedal 29 and second push pedal 31, increase frictional force further slows down the falling speed of lift platform 4, avoids causing great collision.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A speed limiting device for a stacker comprises a bottom plate (1) and is characterized in that two vertical plates (2) are fixedly mounted at the top of the bottom plate (1), sliding grooves (3) are formed in one sides, close to each other, of the two vertical plates (2), the same lifting platform (4) is slidably mounted in the two sliding grooves (3), two sliding holes (5) are formed in the top of the lifting platform (4), sliding plates (6) are slidably mounted in the two sliding holes (5), mounting blocks (7) are mounted at the tops of the two sliding plates (6), one ends of steel wire ropes (8) are fixedly connected to the tops of the two mounting blocks (7), the other ends of the two steel wire ropes (8) are fixedly connected with the same rotary drum (10), grooves (12) are formed in the two sides of the lifting platform (4), and connecting plates (11) are slidably mounted in the two grooves (12), the tops of the two connecting plates (11) are respectively fixedly connected with the bottoms of the two sliding plates (6), the tops of the connecting plates (11) are fixedly provided with one ends of a plurality of first springs (14), the other ends of the first springs (14) are fixedly connected with the inner walls of the tops of the grooves (12), the inner walls of one sides, close to each other, of the two grooves (12) are respectively rotatably provided with a rotating rod (16), the two rotating rods (16) are respectively in threaded connection with an extrusion plate (18), the outer sides of the two rotating rods (16) are respectively and fixedly sleeved with a first gear (17), the two first gears (17) are respectively engaged with a first rack (15), the tops of the two first racks (15) are respectively and fixedly connected with the bottoms of the two connecting plates (11), one side of one connecting plate (11) of the two connecting plates (11) is fixedly provided with a lifting plate (22), and the bottoms of the lifting plates (22) are fixedly provided with first conducting blocks, the lifting platform is characterized in that a mounting groove (19) is formed in the inner wall of one side of the groove (12), a second conductive block (24) is fixedly mounted on the inner wall of the bottom of the mounting groove (19), a power supply and an alarm (25) are fixedly connected to the lifting platform (4), and the first conductive block (23), the power supply, the alarm (25) and the second conductive block (24) are sequentially connected in series through wires.
2. The speed limiting device for the stacker is characterized in that sliding grooves (28) are formed in the inner wall of one side, close to each other, of each of the two grooves (12), a first pushing plate (29) and a second pushing plate (31) are installed in each of the two sliding grooves (28) in a sliding mode, a first pushing block (30) and a second pushing block (32) are fixedly installed at the bottoms of the first pushing plate (29) and the second pushing plate (31) respectively, an electric push rod (27) is fixedly installed at the bottom of the lifting platform (4), an output shaft of the electric push rod (27) is fixedly connected with one side of the first pushing block (30), a connecting shaft (35) is rotatably installed at the bottom of the lifting platform (4), a second gear (37) is fixedly installed at the top of the connecting shaft (35), a second rack is fixedly installed at one side of the first pushing plate (29), and the second rack is meshed with the second gear (37), the bottom of the connecting shaft (35) is fixedly provided with a first bevel gear (36), the first bevel gear (36) is engaged with a second bevel gear (34), one end of the second bevel gear (34) is fixedly provided with a transmission rod (33), and the transmission rod (33) is in threaded connection with the second push block (32).
3. The speed limiting device for the stacker is characterized in that a correlation type photoelectric sensor (20) and a controller (26) are fixedly mounted on the inner wall of the top of the mounting groove (19), a stop block (21) is arranged in the middle of the correlation type photoelectric sensor (20), the bottom of the stop block (21) is fixedly connected with the top of the lifting plate (22), and the correlation type photoelectric sensor (20) and the electric push rod (27) are both electrically connected with the controller (26).
4. The speed limiting device for the stacking machine according to claim 1, wherein a plurality of positioning blocks (13) are fixedly mounted at the tops of the two connecting plates (11), and the tops of the positioning blocks (13) are in contact with the inner wall of the top of the groove (12).
5. The speed limiting device for the stacking machine according to claim 1, wherein the side walls of the two grooves (12) are respectively provided with a guide groove, guide blocks are fixedly arranged on two sides of the two extrusion plates (18) and are slidably connected with the inner walls of the guide grooves, the sides of the two extrusion plates (18) close to each other are respectively provided with a threaded groove, the thread directions of the two threaded grooves are opposite, and the two rotating rods (16) are respectively in threaded connection with the two threaded grooves.
6. The speed limiting device for the stacking machine is characterized in that connecting grooves with openings at the tops are formed in one side, close to each other, of each of the two sliding plates (6), the two mounting blocks (7) are respectively inserted into the two connecting grooves, limiting grooves (38) with openings at one sides are formed in the inner walls of the two connecting grooves, limiting blocks (39) are fixedly mounted on the two sides of each of the two mounting blocks (7), and the limiting blocks (39) are inserted into the limiting grooves (38).
7. The speed limiting device for the stacker is characterized in that the inner walls of the bottoms of the two connecting grooves are provided with reset grooves, reset blocks (40) are slidably mounted in the two reset grooves, and the sides, far away from each other, of the two reset blocks (40) are fixedly connected with the sides, close to each other, of the two mounting blocks (7).
8. The speed limiting device for the stacker is characterized in that one end of each second spring (41) is fixedly installed at the bottom of each reset block (40), and the other end of each second spring (41) is fixedly connected with the inner wall of the bottom of each reset groove.
9. The speed limiting device for the stacker is characterized in that two bearings are fixedly mounted at the bottom of the lifting platform (4), and the outer side of the transmission rod (33) is fixedly connected with the inner ring of the bearing.
10. The speed limiting device for the stacker is characterized in that a motor (9) is fixedly mounted on one side of the vertical plate (2), and an output shaft of the motor (9) is fixedly connected with one end of the rotating drum (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497118.5A CN111470456B (en) | 2020-06-04 | 2020-06-04 | Speed limiting device for stacking machine |
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| JP2784429B2 (en) * | 1996-04-10 | 1998-08-06 | テイテイシイ 株式会社 | Simple lifter |
| CN202625732U (en) * | 2012-03-07 | 2012-12-26 | 高勤乐 | Outdoor movable small micro-electric elevator device |
| CN206156676U (en) * | 2016-11-01 | 2017-05-10 | 李雅迪 | Portable hoisting device for engineering |
| CN108792987A (en) * | 2018-07-14 | 2018-11-13 | 何朋飞 | A kind of hoistable platform of anticollision |
| CN109378667B (en) * | 2018-11-12 | 2020-09-15 | 大同新成新材料股份有限公司 | Electric brush adjusting device and adjusting method thereof |
| CN210505379U (en) * | 2019-08-30 | 2020-05-12 | 济阳东方液压机械有限公司 | Anti-gliding device of lifting platform |
| CN210635655U (en) * | 2019-09-05 | 2020-05-29 | 天津扬卡机电设备有限公司 | Flexible container stacker of stacker |
| CN110937543A (en) * | 2019-12-11 | 2020-03-31 | 尉睦根 | Building material conveying device with self-locking function |
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