CN216471865U - Adjustable automatic lifting appliance - Google Patents

Abstract

The utility model discloses an adjustable automatic hoist, including the hoist main part, the hoist main part includes clamp and the shutter that can lock the switching state of clamp, the clamp includes tong arm and claw, be equipped with in the hoist main part and be used for adjustable positioning seat, the vertical location height-adjustable festival of adjustable positioning seat, adjustable automatic hoist still includes process status detection device, process status detection device touches base detection device including the claw that can detect whether accurate the claw contacted the material by the lifting surface, can send the hoist of hoist touch panel signal when the hoist was arranged in the material and touches base detection device and can detect whether the hoist descends and targets in place with the hoist of opening or locking shutter descends and targets in place detection device. The utility model discloses a set up adjustable automatic hoist, the cooperation is from descending to the relevant function that detects of the full flow that promotes, realizes that the adjustable of high temperature steel sheet quantity hangs the automation of getting, guarantees the high efficiency and the security of jack-up process.

Description

Adjustable automatic lifting appliance

Technical Field

The utility model relates to a hoisting accessory technical field, concretely relates to adjustable automatic hoist.

Background

At present, more than 90% of slabs produced by steel plants are common slab clamps, but the common slab clamps can only lift one steel plate at a time. With the improvement of the productivity and efficiency of steel mills, the lifting appliance which can only lift one plate blank at a time can not meet the production efficiency requirement of the existing steel mills. At present, clamps for manually adjusting the number of slabs lifted each time and clamps for manually and electrically adjusting the number of steel plates lifted each time appear in succession, but the clamps are only used by manual operation and still cannot meet the current trend requirement of industrial automation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the proposition of above problem, and research design an adjustable automatic hoist. The utility model discloses a technical means as follows:

the utility model provides an adjustable automatic hoist, includes the hoist main part, the hoist main part includes clamp and can carry out the shutter that locks to the switching state of clamp, the clamp includes tong arm and claw, be equipped with in the hoist main part and be used for adjustable positioning seat, the vertical positioning height-adjustable of adjustable positioning seat is adjustable, adjustable automatic hoist still includes process status detection device, process status detection device touches base detection device including the claw that can detect whether the claw accurately contacts the material by the plane of hanging, can send the hoist of hoist touch panel signal when the hoist is arranged in on the material and touches base detection device and can detect whether the hoist descends and targets in place with the hoist decline of opening or locking shutter detection device that targets in place.

The detection device comprises a detection feeler lever and a first detection switch, wherein the detection feeler lever is arranged in the jaw and comprises a triggering part for triggering the first detection switch and a stress part extending out of the jaw; the lifting appliance blank contact detection device comprises a second detection switch capable of detecting the state change of the adjustable positioning seat after contacting the upper surface of the material; the device for detecting the descending of the lifting appliance to the place comprises an idle-load descending to the place detection device and a loaded descending to the place detection device, the idle-load descending to the place detection device comprises a third detection switch capable of detecting the action of opening and closing the switch from locking, and the loaded descending to the place detection device comprises a fourth detection switch capable of detecting the action of opening and closing the switch from locking.

Furthermore, the adjustable positioning seat comprises a supporting structure, a seat body, a first positioning block and a driving device, the seat body can move up and down relative to the supporting structure, the driving device can drive the first positioning block to limit or remove the limit of the stroke of the seat body, and the adjustable positioning seat is fixed on a lower cross beam of the hanger main body.

Furthermore, the driving device comprises a lead screw matched with the first positioning block and a motor capable of driving the lead screw to rotate, the first positioning block can move to the upper part of the seat body under the driving of the lead screw, a second positioning block is arranged at the position, corresponding to the first positioning block, of the upper end of the seat body, a buffer structure is arranged between the second positioning block and the seat body, a height difference exists between the upper end of the second positioning block and the lower end of the first positioning block when the seat body is in a state of not contacting with materials, and the seat body can trigger the second detection switch when moving within the height difference range.

Further, the process state detection device further comprises a sliding blank detection device, wherein the sliding blank detection device comprises a fifth detection switch, and the fifth detection switch is arranged at a corresponding position of the upper end of the seat body in each stage of positioning state.

Further, the process state detection device further includes a shutter operation detection device capable of detecting whether the opening and locking operations of the shutter are in place.

Further, the process state detection device further comprises a lifting appliance opening degree detection device for monitoring the opening degree of the lifting appliance in real time.

Furthermore, the process state detection device also comprises a weighing detection device capable of monitoring the actual weight of the hoisted object.

Furthermore, the shutter motion detection device is two proximity switches arranged in the shutter base; the opening degree detection device comprises a steel wire rope, a rope wheel and a frame, wherein the rope wheel is fixed on the frame through a rotating shaft, a reset torsion spring is arranged between the rope wheel and the frame, a transmission gear is arranged between the rotating shaft and an encoder, the frame is fixed on an upper cross beam of the hanger main body, one end of the steel wire rope is fixed on the rope wheel, and the other end of the steel wire rope is fixed on a lower cross beam of the hanger main body; the weighing detection device is a weighing sensor arranged between the lifting lug and the lifting shaft.

Compared with the prior art, an adjustable automatic hoist through setting up adjustable automatic hoist, the cooperation is from descending to the relevant function that detects of the full flow that promotes, can cooperate with automatic system, the adjustable that realizes high temperature steel sheet quantity hangs the automation of getting, guarantees the high efficiency and the security of jack-up process.

Drawings

Fig. 1 is a schematic structural diagram of an adjustable automatic spreader according to an embodiment of the present invention.

Fig. 2 is a schematic representation of the workings of fig. 1.

Fig. 3 is a schematic structural diagram of a device for detecting blank touching by a claw according to an embodiment of the present invention.

Fig. 4 is a schematic view of an implementation state of the claw blank-touching detection device according to the embodiment of the present invention.

Fig. 5 is a schematic view of an internal structure of an adjustable positioning seat according to an embodiment of the present invention (in an extended state).

Fig. 6 is a side view schematic of fig. 5.

Fig. 7 is a schematic view of an internal structure of the adjustable positioning seat according to the embodiment of the present invention (retracted state).

Fig. 8 is a schematic view of the instant state of the sliding blank according to the embodiment of the present invention.

Fig. 9 is a schematic view of a shutter and an empty-load-fall-in-place detection device according to an embodiment of the present invention (shutter lock state).

Fig. 10 is a schematic view of a shutter and a no-load fall-in-place detection device according to an embodiment of the present invention (shutter open transient state).

Fig. 11 is a schematic view of a shutter and a loaded descent in-place detection device according to an embodiment of the present invention (shutter open state).

Fig. 12 is a schematic view of a shutter and a device for detecting that a loaded object is lowered to the right (shutter locking transient state) according to an embodiment of the present invention.

Fig. 13 is a schematic view of a shutter operation detection device according to an embodiment of the present invention (shutter open state).

Fig. 14 is a schematic view of a shutter operation detection device according to an embodiment of the present invention (shutter lock in place state).

Fig. 15 is a schematic view of a shutter operation detection device according to an embodiment of the present invention (shutter smoothly opened state).

Fig. 16 is a schematic structural diagram of an opening degree detection device according to an embodiment of the present invention.

Fig. 17 is a schematic structural diagram of a weighing detection device according to an embodiment of the present invention.

Fig. 18 is a side view of fig. 17.

Detailed Description

As shown in fig. 1 and 2, an adjustable automatic lifting appliance comprises a lifting appliance main body 1, wherein the lifting appliance main body 1 comprises a clamp 11 and a shutter 12 capable of locking the opening and closing states of the clamp 11, the clamp comprises a clamp arm 13 and a clamp claw 14, the lifting appliance main body 1 is provided with an adjustable positioning seat 2, the vertical positioning height of the adjustable positioning seat 2 is adjustable, the adjustable automatic lifting appliance further comprises a process state detection device, and the process state detection device comprises a clamp claw contact blank detection device capable of detecting whether the clamp claw accurately contacts a lifted surface of a material, a lifting appliance contact blank detection device capable of sending a lifting appliance contact plate signal when the lifting appliance is placed on the material, and a lifting appliance drop in-place detection device capable of detecting whether the lifting appliance drops in place to open or lock the shutter. In a preferred embodiment, the automatic control system of the process state detection device is arranged in the control box 5, a refrigeration device, specifically a semiconductor refrigeration device, is arranged in the control box 5, and a heat insulation protective layer is arranged at the box body of the control box to meet the working requirement of a high-temperature environment.

As shown in fig. 3 and 4, in a preferred embodiment, the jaw blank-touching detection device 31 includes a detection contact rod 311 and a first detection switch 312, which are disposed in the jaw 14, the detection contact rod 311 includes a triggering portion 313 for triggering the first detection switch 312 and a force-receiving portion 314 extending out of the jaw, the detection is fixed in the jaw 14 through the contact rod 311 by a rotating shaft, a return spring 315 is disposed between the detection contact rod 311 and the jaw 14, and when the force-receiving portion 314 receives an external pushing force, the detection contact rod 311 rotates around the rotating shaft to make the triggering portion 313 trigger the first detection switch 312. The gripper jaw blank contact detection device 31 is used for detecting whether four gripper jaws of a lifting appliance accurately contact a lifted surface of a steel plate 4 or not, the gripper jaw blank contact detection device is an integral mechanism, when the gripper jaws of the lifting appliance contact a plate blank, a detection contact rod 311 is pushed into the gripper jaw 14 by the plate blank, a detection contact rod 32 rotates around a rotating shaft, meanwhile, a rear reset spring 315 is stretched, and then a first detection switch 312 in the gripper arm 13 is triggered to act. When the gripper 14 is separated from the slab, the detection feeler 311 loses its inward urging force, and the detection feeler is pulled back by the return spring on the rear side to return to its original state.

The lifting appliance blank contact detection device comprises a second detection switch 32 which can detect the state change of the adjustable positioning seat 2 after contacting the upper surface of the material. The second detection switch 32 is installed on the adjustable positioning seat 2, and when the adjustable positioning seat of the lifting appliance contacts the upper surface of the steel plate 4, the seat body is jacked upwards by the steel plate, and the second detection switch is triggered to act.

In a preferred embodiment, the adjustable positioning seat 2 includes a supporting structure 21, a seat body 22, a first positioning block 23, and a driving device, wherein the seat body 22 can move up and down relative to the supporting structure 21, the driving device can drive the first positioning block 23 to limit or release the limit of the stroke of the seat body 22, and the adjustable positioning seat 2 is fixed on the lower cross beam of the spreader main body. The driving device comprises a lead screw 24 matched with the first positioning block and a motor capable of driving the lead screw to rotate, the motor transmits torque to the lead screw 24 through a speed reducer and a coupler, the lead screw 24 drives the first positioning block 23 to slide left and right through a thread transmission mode to adjust the positioning height of the adjustable supporting seat 2, and the proximity switch is utilized to detect whether the first positioning block 23 moves in place. The first positioning block 23 can move to the upper side of the seat body 33 under the driving of the screw rod 24, a second positioning block 25 is arranged at the upper end of the seat body 33 corresponding to the first positioning block 23, and a buffer structure 26 is arranged between the second positioning block 25 and the seat body 22, specifically, the buffer structure can be a disc spring. When the base 22 is not in contact with the material, a height difference exists between the upper end of the second positioning block 25 and the lower end of the first positioning block 23, the base 22 can trigger the second detection switch 32 when moving within the height difference range, and the second detection switch 32 can be specifically arranged on the support structure 21 at a position slightly higher than the base 22. When the clamp hangs a layer of slab or square billet, as shown in fig. 5 and 6, the base body 22 of the adjustable positioning seat is in a free extending state from the heavy weight in a natural state. After an operator in the control room gives a command, the motor transmits torque to the screw rod 24 through the speed reducer and the coupler, and the screw rod 24 and the nut drive the first positioning block 23 to slide right above the second positioning block 25 in a threaded transmission mode. The second detection switch 32 is actuated, that is, the first positioning block 23 is moved to the position. The upper end of the second positioning block 25 in the seat body 22 is pressed against the lower end of the first positioning block 23, and the seat body 22 cannot retract. At the moment, the adjustable positioning seat 2 is in an extension state, the pulley at the bottom of the seat body 22 is in contact with the plate blank or the square billet, and the clamp is lifted to realize the lifting of one layer of plate blank or square billet. When the clamp hangs two layers of slabs or square billets, as shown in fig. 7, after an operator in the control room gives a command, the motor transmits torque to the screw rod 24 through the speed reducer and the coupler, the screw rod 24 and the nut drive the first positioning block 23 to slide to the other side from right above the second positioning block 25 in a threaded transmission mode, and the first detection switch 312 acts, that is, the first positioning block 23 moves in place. The pedestal 22 of adjustable positioning seat 2 is in the state of freely stretching out and drawing back, and the pulley that falls the pedestal 22 bottom under the clamp because clamp gravity presses the pedestal 22 back when making contact with the slab upper surface, and the clamp plays to rise to get and gets, and adjustable positioning seat 2 is the withdrawal state this moment, realizes two-layer slab or square billet hang and gets. In some embodiments, a plurality of first positioning blocks 23 of different specifications may be provided according to the requirement for the number of steel plates to be hung, and when different numbers of steel plates are hung, the first positioning blocks of corresponding specifications move to the upper side of the second positioning block for positioning.

In a preferred embodiment, as shown in fig. 5 to 8, the process state detection device further comprises a sliding blank detection device comprising a fifth detection switch 33. The fifth detection switches 33 are disposed corresponding to different numbers of the hanging steel plates, the fifth detection switches are disposed at corresponding positions of the upper end of the base body in each stage of positioning state, that is, at corresponding positions of the upper end of the base body 22 when different numbers of steel plates are positioned, and one fifth detection switch is disposed corresponding to the number of steel plates in each stage. For example, when a steel plate is hung by the lifting appliance, the seat body 22 can trigger a fifth detection switch 33 when moving within the height difference range, and the fifth detection switch 33 is disposed above the second detection switch 32. After the steel plate is lifted by the lifting appliance, if the lifting appliance is not tightly lifted, the steel plate slides downwards, the detection can be carried out, a sliding blank signal is given, the whole lifting appliance stops working, and danger is prevented. Install in the hoist and touch base detection device top, after the electric regulation positioning seat of hoist contacted steel sheet upper surface, the pedestal will be by steel sheet jack-up that makes progress, triggers the hoist and touches base detection device action, then the hoist continues to descend, and adjustable positioning seat can continue to move up a certain distance, then triggers smooth base detection device action, then the hoist continues to descend, and the detection device action that targets in place is arrived in the decline of hoist. Then the hoist begins to rise and presss from both sides the slab, and the hoist presss from both sides the back with the slab, if the tong arm does not press from both sides tight slab, then the slab can be the gliding, then the pedestal of adjustable positioning seat also can be along with the slab gliding, at this moment, and smooth base detection device will lose the signal, gives the warning.

As shown in fig. 9 to 12, the spreader down-to-position detection means includes an empty down-to-position detection means including a third detection switch 341 capable of detecting the action of the shutter from being locked to being opened, and a loaded down-to-position detection means including a fourth detection switch 342 capable of detecting the action of the shutter from being opened to being locked. The shutter 12 described in the present embodiment may be any of various conventional shutters, and the present embodiment will be described by taking a shutter having the following configuration as an example. The structure of the shutter 12 is that the shutter includes a latch hook 121, a base 122 and a lock plate 123, the lock plate 123 is fixed in the base 122 of the shutter, the lock plate 123 is a structure similar to a triangle as a whole, and a notch matched with the latch hook 121 is arranged at the lower side of the lock plate. When the spreader is lowered empty, the spreader shutter 12 is now locked, as shown in fig. 9. The spreader needs to open the shutter 12 and then pick up the steel plate normally. At this time, the lowering position of the spreader is a position where the shutter can be opened smoothly, that is, the third detection switch 341 is operated during the detection of the position where the shutter is operated, as shown in fig. 10. When the spreader is lowered with load, the shutter 12 is in the open state, as shown in fig. 11. The steel plate is hung by the lifting appliance, after the steel plate falls to the ground, the lifting appliance needs to continue to descend until the lifting appliance descends to a position enough for the lock hook 121 of the switch 12 to be smoothly hung on the lock plate 123 of the switch 12, namely, the fourth detection switch 342 in the detection of the switch 12 in place is operated, as shown in fig. 12, after the switch is operated, the lifting appliance starts to lift, the lock hook 121 of the switch is hung on the lock plate 123 of the switch, and then the lifting appliance can be lifted in an idle load after the steel plate is put down.

The process state detection device further comprises a shutter action detection device capable of detecting whether the opening and locking actions of the shutter 12 are in place, a hanger opening degree detection device for monitoring the opening degree of a hanger in real time, and a weighing detection device capable of monitoring the actual weight of a hung object. In a preferred embodiment, the shutter movement detection means are two proximity switches disposed in the shutter base, respectively a sixth detection switch 351 and a seventh detection switch 352, which are respectively installed in the shutter base 122, and at a specific detection position, the sixth detection switch 351 is located at a corresponding position of the latch hook (below the latch plate) in the reliably locked state, the seventh detection switch 352 is located outside the latch plate, and the movement of the latch hook to the position of the seventh detection switch is a position where the shutter can be smoothly opened, so that the sixth detection switch and the seventh detection switch can detect the reliable locking and the reliable opening of the shutter latch hook, as shown in fig. 13 to 15.

In a preferred embodiment, the opening degree detecting device 36 is an integral mechanism, as shown in fig. 16, and includes a steel wire rope 361, a rope pulley 362, a frame 363, and an encoder 365, the rope pulley 362 is fixed on the frame 363 through a rotating shaft, a return torsion spring 364 is arranged between the rope pulley 362 and the frame 363, a transmission gear 366 is arranged between the rotating shaft and the encoder 365, the transmission gear can be arranged between the rotating shaft and the return torsion spring as required, the frame 363 is fixed on an upper cross beam of the hanger body, one end of the steel wire rope 361 is fixed and wound on the rope pulley 362, and the other end is fixed on a lower cross beam of the hanger body. The hoist opening degree is in the action, and the distance between the upper and lower crossbeam also changes, and the length that just that the wire rope that the opening degree detected stretches out also changes thereupon, and wire rope stretches out length when changing, can stimulate the rope sheave and rotate, then through drive gear, drives the encoder and rotates. And calculating the length of the steel wire rope by calculating the number of turns of the encoder. Therefore, the change of the distance between the upper beam and the lower beam is obtained, and then the opening degree of the existing lifting appliance is automatically calculated by the PLC through a specific formula.

As shown in fig. 17 and 18, the load detection means is a load cell 37 installed between the lifting lug 15 and the lifting shaft 16. Specifically, the load cell 37 is mounted to the lifting lug 15, and the lifting shaft 16 is fixed in a hole of the load cell 37. When the hanger is hung on the hanger shaft 16, the upper surface of the hanger shaft 16 and the upper surface of the inner hole of the load cell 37 are pressed against each other, and the pressed weight is calculated. The lifting hook lifts the unloaded lifting appliance, the weight of the sensor is set to be zero at the moment, and the weight of the lifting appliance after the steel plate is lifted is the weight of the steel plate.

The working process of the embodiment is as follows:

1. the hoist moves the hoist to the steel sheet directly over, and hoist front end automatic system will want to hang the steel sheet size and the quantity of getting and pass to hoist automated control system simultaneously.

2. The front end of the lifting appliance transmits the steel plate parameters and the quantity to be lifted to an automatic control system of the lifting appliance, and then the automatic control system calculates the height to be adjusted of the adjustable positioning seat through self calculation.

3. And (4) descending the lifting appliance until the lifting appliance touches the blank detection device to act, and indicating that the lifting appliance has contacted the steel plate. And slowly descending the lifting appliance until the lifting appliance descends in place to the detection device to act, which shows that the lifting appliance descends in place and can carry out the next lifting action.

4. After the lifting appliance descends to the position, the detection device acts, the lifting appliance begins to slowly lift until the clamp claws of the lifting appliance contact the blank detection device to act, the steel plate is clamped by the clamp claws, and then the lifting appliance is lifted. Then the weighing sensor weighs the actual weight of the steel plate, and the opening degree detection device of the clamp simultaneously measures the width of the steel plate. Then the automatic control system of the clamp automatically compares with the steel plate parameters which are transmitted into the control system by the front end of the lifting appliance before, and verifies whether the steel plate parameters are accurate or not.

5. After the steel plate is lifted and transported in place, the lifting appliance is descended until the shutter of the shutter action detection device is locked in place and detects (a sixth detection switch) action, and meanwhile, the claw contact blank detection signal is lost, which indicates that the steel plate is placed completely, and the lifting appliance can be lifted to the next working cycle.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims (9)

1. The utility model provides an adjustable automatic hoist, includes the hoist main part, the hoist main part includes clamp and can carry out the shutter that locks to the open-close state of clamp, clamp includes tong arm and claw, its characterized in that: the lifting appliance comprises a lifting appliance main body, and is characterized in that an adjustable positioning seat is arranged on the lifting appliance main body, the vertical positioning height of the adjustable positioning seat is adjustable, the adjustable automatic lifting appliance further comprises a process state detection device, the process state detection device comprises a jaw contact blank detection device which can detect whether a jaw accurately contacts a lifted surface of a material, a lifting appliance contact blank detection device which can send a lifting appliance contact plate signal when the lifting appliance is placed on the material, and a lifting appliance descending and in-place detection device which can detect whether the lifting appliance descends and in-place to open or lock the shutter.

2. The adjustable automated spreader of claim 1, wherein: the detection device for the blank contact of the jaw comprises a detection contact rod and a first detection switch, wherein the detection contact rod and the first detection switch are arranged in the jaw; the lifting appliance blank contact detection device comprises a second detection switch capable of detecting the state change of the adjustable positioning seat after contacting the upper surface of the material; the lifting appliance descending in-place detection device comprises an unloaded descending in-place detection device and a loaded descending in-place detection device, the unloaded descending in-place detection device comprises a third detection switch capable of detecting the action of opening the shutter from locking, and the loaded descending in-place detection device comprises a fourth detection switch capable of detecting the action of closing the shutter from opening to locking.

3. The adjustable automated spreader of claim 2, wherein: the adjustable positioning seat comprises a supporting structure, a seat body, a first positioning block and a driving device, the seat body can move up and down relative to the supporting structure, the driving device can drive the first positioning block to limit or remove the limit of the stroke of the seat body, and the adjustable positioning seat is fixed on a lower cross beam of the lifting appliance main body.

4. The adjustable automated spreader of claim 3, wherein: the driving device comprises a lead screw matched with the first positioning block and a motor capable of driving the lead screw to rotate, the first positioning block can move to the upper portion of the base under the driving of the lead screw, a second positioning block is arranged at the position, corresponding to the first positioning block, of the upper end of the base, a buffering structure is arranged between the second positioning block and the base, a height difference exists between the upper end of the second positioning block and the lower end of the first positioning block when the base is in a state of not contacting with materials, and the base can trigger the second detection switch when moving within the height difference range.

5. The adjustable automated spreader of claim 4, wherein: the process state detection device further comprises a sliding blank detection device, wherein the sliding blank detection device comprises a fifth detection switch, and the fifth detection switch is arranged at a corresponding position of the upper end of the seat body in each stage of positioning state.

6. The adjustable automated spreader of any one of claims 1 to 5, wherein: the process state detection device further includes a shutter operation detection device capable of detecting whether the opening and locking operations of the shutter are in place.

7. The adjustable automated spreader of claim 6, wherein: the process state detection device further comprises a lifting appliance opening degree detection device for monitoring the opening degree of the lifting appliance in real time.

8. The adjustable automated spreader of claim 7, wherein: the process state detection device also comprises a weighing detection device capable of monitoring the actual weight of the hoisted object.

9. The adjustable automated spreader of claim 8, wherein: the shutter action detection device is two proximity switches arranged in the shutter base; the opening degree detection device comprises a steel wire rope, a rope wheel and a frame, wherein the rope wheel is fixed on the frame through a rotating shaft, a reset torsion spring is arranged between the rope wheel and the frame, a transmission gear is arranged between the rotating shaft and an encoder, the frame is fixed on an upper cross beam of the hanger main body, one end of the steel wire rope is fixed on the rope wheel, and the other end of the steel wire rope is fixed on a lower cross beam of the hanger main body; the weighing detection device is a weighing sensor arranged between the lifting lug and the lifting shaft.

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