CN219341640U - Overspeed protection device for stacker cargo carrying platform - Google Patents

Abstract

The utility model relates to the technical field of cargo carrying platform protection equipment, and provides an overspeed protection device for a cargo carrying platform of a stacker. The utility model overcomes the defects of the prior art, has reasonable design and compact structure, when the carrier body drops at overspeed, the sliding wheel rotates at overspeed at the moment, so that the clamping block clamps the sliding wheel, and gives a friction force to the carrier rail, when the clamping rods are mutually close, the reducing wheel extending out of the clamping plate can come into contact with the carrier rail at first, and the reducing wheel rotates at the moment, the reducing teeth on the surface of the reducing wheel can improve the friction force between the reducing wheel and the carrier rail, so that the descending speed of the carrier body is reduced, then the clamping plate clamps the carrier rail again, a steel wire rope is not required, and the speed is reduced firstly and then the braking is carried out, so that not only can the inertia be reduced to prevent the damage of the goods, but also the damage of a braking piece with overlarge impact force can be avoided.

Description

Overspeed protection device for stacker cargo carrying platform

Technical Field

The utility model relates to the technical field of cargo carrying platform protection equipment, in particular to an overspeed protection device for a stacker cargo carrying platform.

Background

The overspeed protection device is one of the safety protection devices of the stacker, when the cargo carrying platform of the stacker is lifted, the cargo carrying platform can be caused to fall down at overspeed due to some reasons, and the working principle of the overspeed protection device is as follows: when the cargo carrying platform drops at overspeed, the wire rope drives the speed limiter to overspeed, so that the rope pulley on the speed limiter rotates at overspeed, when the preset speed is reached, the pawl of the speed limiter automatically clamps the ratchet, at the moment, the rope pulley of the speed limiter stops rotating, and simultaneously, the travel switch automatically cuts off the power supply, and the eccentric wheel of the brake clamping device is forced to rotate due to the action of the balance weight of the transmission steel rope, so that the brake clamping device is firmly clamped on the lifting guide rail.

But when the goods carrying platform drops in overspeed, the steel wire rope is broken, the current overspeed protection device cannot achieve the protection performance, and when the current overspeed protection device protects the goods carrying platform which drops in overspeed, the goods carrying platform can stop moving instantly, and the goods can be damaged due to the fact that huge inertia impact is not only possible to stop, so that the overspeed protection device for the goods carrying platform of the stacker is provided.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an overspeed protection device for a stacker cargo table, which overcomes the defects of the prior art, has reasonable design and compact structure, and solves the problems that the braking force is insufficient and goods are easy to damage due to the fact that the existing steel wire rope is broken and cannot be subjected to braking protection and the instantaneous stopping in the braking process.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the overspeed protection device for the stacker cargo carrying platform comprises a cargo carrying platform body, wherein sliding parts, clamping parts and limiting parts are symmetrically arranged in the cargo carrying platform body;

the sliding parts are symmetrically arranged outside the cargo carrying track and rotate along with the cargo carrying track, the sliding parts receive overspeed signals to trigger the clamping parts to be attached to the cargo carrying track, the limiting parts are arranged on the upper side and the lower side of the clamping parts, and the limiting parts are reset after being clamped.

Preferably, the inside of slider is equipped with the movable pulley of laminating freight carrying track outer wall, the positive fixedly connected with rolling disc of movable pulley, the inside of rolling disc is connected with the push rod through connecting spring.

Preferably, the inside of holder is equipped with two clamping bars of one end pin connection, two fixedly connected with first supporting spring between the clamping bars, two clamping bar outer wall fixedly connected with grip block, the clamping bar rotates through the connecting rod and is connected with the boss, the outer wall fixedly connected with lug of boss, the one end fixedly connected with that the junction was kept away from to the clamping bar sets up the grip block in the track outside that carries cargo.

Preferably, the locating part is equipped with the dead lever of fixing in cargo table body inside, the arc wall has been seted up to the inside of dead lever, the inside sliding connection in arc wall has the arc slider, the front of arc slider rotates and is connected with the arc pole, the inside sliding connection of dead lever has the gag lever post, the gag lever post passes through limit spring and is connected with the outer wall of dead lever.

Preferably, two clamping blocks fixedly connected with the outer walls of the clamping rods are arranged on the upper side and the lower side of the sliding wheel, and the inner sides of the clamping blocks are arc-shaped structures matched with the outer walls of the sliding wheel.

Preferably, a plurality of spouts have been seted up to the inside of grip block, the internally mounted of spout has the stopper, the inside of spout is connected with the reducing gear through the second supporting spring, one side that the reducing gear extends the grip block sets up in the orbital outside of carrying cargo, the outer wall of reducing gear is equipped with speed reduction tooth and projection.

Preferably, the projection faces one side of the rotating disc.

Preferably, one side of the arc-shaped rod far away from the arc-shaped sliding block is fixedly connected with the outer wall of the clamping rod.

Preferably, one side of the limiting rod, which is close to the arc-shaped sliding block, is of an arc-shaped structure, and one side of the limiting rod, which is far away from the limiting rod, is of a horizontal structure.

(III) beneficial effects

The embodiment of the utility model provides an overspeed protection device for a stacker cargo table. The beneficial effects are as follows:

1. when the platform body that carries cargo drops excessively, the movable pulley overspeed rotates this moment for the grip block carries out the centre gripping to the movable pulley, give a frictional force that carries cargo the track, when the grip lever is close to each other this moment, the reducing gear that extends the grip block can first with carry cargo the track contact, the reducing gear rotates this moment, the reducing gear on reducing gear surface can improve the reducing gear and carry cargo frictional force between the track this moment, make the speed that carries cargo the platform body decline reduce, then the grip block carries out the centre gripping to carrying cargo the track again, need not to use wire rope, and brake after the speed reduction earlier, not only can reduce inertia and prevent that the goods from damaging, can also avoid the too big brake piece of impact force to damage.

2. When the cargo carrying platform brakes, the arc-shaped rod drives the arc-shaped sliding block to move in the arc-shaped groove, and at the moment, the arc-shaped sliding block is limited by the plane side of the arc-shaped rod, so that the clamping rod keeps a fixed position and does not need other driving parts, and electric power and equipment are saved.

Drawings

FIG. 1 is a schematic front view of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a rotor disk structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure A of FIG. 1 according to the present utility model;

fig. 4 is an enlarged schematic view of the structure B of fig. 1 according to the present utility model.

In the figure: 1. a cargo bed body; 21. a sliding wheel; 22. a rotating disc; 23. a connecting spring; 24. a push rod; 31. a clamping rod; 32. a first support spring; 33. a clamping block; 34. a connecting rod; 35. a cam; 36. a bump; 37. a clamping plate; 371. a chute; 372. a limiting block; 373. a second support spring; 374. a reduction gear; 375. a reduction gear; 376. a convex column; 41. a fixed rod; 42. an arc-shaped groove; 43. an arc-shaped sliding block; 44. an arc-shaped rod; 45. a limit rod; 46. and a limit spring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an overspeed protection device for a stacker cargo table comprises a cargo table body 1, wherein sliding parts, clamping parts and limiting parts are symmetrically arranged in the cargo table body 1;

the slider symmetry sets up in the orbital outside of carrying cargo and rotates along with the rotation, and the slider accepts overspeed signal to trigger the laminating of holder and carries cargo the track, and the locating part sets up both sides about the holder, and the back resets after restriction holder presss from both sides tightly, and when carrying cargo the platform body 1 overspeed drop, the slider overspeed rotation this moment for the holder carries out the centre gripping to slider and carrying cargo the track, and slider stop motion provides frictional force for carrying cargo the platform body 1 and makes its speed reduction, then the holder carries out the centre gripping to carrying cargo the platform body 1 to carry cargo the track braking.

In this embodiment, the inside of slider is equipped with the movable pulley 21 of laminating cargo rail outer wall, the positive fixedly connected with rolling disc 22 of movable pulley 21, the inside of rolling disc 22 is connected with push rod 24 through connecting spring 23, movable pulley 21 can reduce the frictional force of cargo table body 1 and it along cargo rail motion, and movable pulley 21 can rotate under the effect of frictional force, when cargo table body 1 overspeed gliding, movable pulley 21 overspeed rotation, further make rolling disc 22 overspeed rotation, push rod 24 is to the outside motion of rolling disc 22 under the effect of centrifugal force this moment.

In this embodiment, the inside of holder is equipped with two clamping bars 31 of one end pin connection, fixedly connected with first supporting spring 32 between two clamping bars 31, two clamping bar 31 outer wall fixedly connected with grip block 33, clamping bar 31 rotates through connecting rod 34 and is connected with boss 35, the outer wall fixedly connected with lug 36 of boss 35, the one end fixedly connected with that the junction was kept away from to clamping bar 31 sets up the grip block 37 in the track outside that carries cargo, grip block 33 can carry out the centre gripping to the outer wall of movable pulley 21 when two clamping bars 31 centre gripping for movable pulley 21 stops rotating, movable pulley 21 and the track friction that carries cargo this moment provide a retarding force, grip block 37 can carry out the centre gripping to the both sides of carrying cargo the track this moment, make cargo table body 1 brake.

In this embodiment, the locating part is equipped with the dead lever 41 of fixing in cargo table body 1 inside, arc wall 42 has been seted up to the inside of dead lever 41, the inside sliding connection of arc wall 42 has arc slider 43, the front rotation of arc slider 43 is connected with arc rod 44, the inside sliding connection of dead lever 41 has gag lever post 45, gag lever post 45 passes through spacing spring 46 and the outer wall connection of dead lever 41, arc rod 44 drives arc slider 43 at the inside motion of arc wall 42, gag lever post 45 returns to the outside of arc slider 43 under the support of spacing spring 46 at this moment and carries out spacingly, avoid its reset.

In this embodiment, the clamping blocks 33 fixedly connected to the outer walls of the two clamping rods 31 are disposed on the upper and lower sides of the sliding wheel 21, and the inner sides of the clamping blocks 33 are arc-shaped structures adapted to the outer walls of the sliding wheel 21, so that the clamping blocks 33 can conveniently clamp and fix the sliding wheel 21.

In this embodiment, a plurality of spouts 371 have been seted up to the inside of grip block 37, the internally mounted of spout 371 has stopper 372, the inside of spout 371 is connected with the reducing gear 374 through second supporting spring 373, one side that reducing gear 374 extends grip block 37 sets up in the orbital outside of carrying cargo, the outer wall of reducing gear 374 is equipped with reducing gear 375 and projection 376, during grip block 37 carries out the centre gripping to carrying cargo the track, reducing gear 374 carries out the centre gripping to carrying cargo the track under the support of second supporting spring 373, reducing gear 374 rotates under carrying cargo the track frictional force effect, at this moment reducing gear 375 gives a great frictional force of carrying cargo the track for carrying cargo table body 1 slow down.

In this embodiment, the projection 36 faces one side of the rotating disc 22, so that the push rod 24 in the rotating disc 22 pushes the projection 36 to move under the centrifugal force.

In this embodiment, a side of the arc-shaped rod 44 away from the arc-shaped slider 43 is fixedly connected with the outer wall of the clamping rod 31, so that the clamping rod 31 drives the arc-shaped rod 44 to move.

In this embodiment, one side of the limiting rod 45, which is close to the arc-shaped sliding block 43, is of an arc-shaped structure, and one side of the limiting rod, which is far away from the arc-shaped sliding block, is of a horizontal structure, so that the arc-shaped sliding block 43 can conveniently limit the arc-shaped sliding block through the arc-shaped surface of the limiting rod 45 in a horizontal direction.

Working principle: when the cargo carrying platform body 1 falls down on the cargo carrying track at an overspeed, at this moment, the sliding wheel 21 rotates at an overspeed under the action of friction force, so that the rotating disc 22 drives the push rod 24 to rotate at an overspeed, at this moment, the push rod 24 overcomes the tension force of the connecting spring 23 to move towards the outside of the rotating disc 22, so that the push rod 24 pushes the convex block 36 to move, at this moment, the convex disc 35 rotates and drives the two clamping rods 31 to approach each other through the two connecting rods 34, at this moment, the two clamping blocks 33 clamp the sliding wheel 21, so that the sliding wheel 21 stops rotating, and a friction force is given to the cargo carrying track to enable the cargo carrying platform body 1 to slow down.

When the clamping rods 31 are close to each other, the clamping plate 37 is close to the cargo carrying track, the speed reducing wheels 374 extending out of the clamping plate 37 are firstly contacted with the cargo carrying track, the speed reducing wheels 374 rub against the cargo carrying track under the support of the second supporting springs 373, the speed reducing wheels 374 rotate, the speed reducing teeth 375 on the surfaces of the speed reducing wheels 374 can improve the friction between the speed reducing wheels 374 and the cargo carrying track, the descending speed of the cargo carrying platform body 1 is further reduced, then the clamping plate 37 clamps the cargo carrying track again, a steel wire rope is not required, and the speed is reduced firstly and then the cargo carrying platform is braked, so that the inertia is reduced, the cargo is prevented from being damaged, and the damage of a brake piece with overlarge impact force can be avoided.

During braking, the clamping rod 31 drives the arc-shaped sliding block 43 to move inside the arc-shaped groove 42 through the arc-shaped rod 44, and at the moment, the arc-shaped sliding block 43 is limited by the plane side of the arc-shaped rod 44, so that the clamping rod 31 keeps a fixed position and does not need other driving parts, and electric power and equipment are saved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (6)

1. The utility model provides a stacker cargo bed overspeed protection device, includes cargo bed body (1), its characterized in that: the cargo table body (1) is internally symmetrically provided with a sliding part, a clamping part and a limiting part;

the sliding parts are symmetrically arranged outside the cargo carrying track and rotate along with the cargo carrying track, the sliding parts receive overspeed signals to trigger the clamping parts to be attached to the cargo carrying track, the limiting parts are arranged on the upper side and the lower side of the clamping parts, and the clamping parts are limited to reset after being clamped;

a sliding wheel (21) attached to the outer wall of the cargo carrying rail is arranged in the sliding piece, a rotating disc (22) is fixedly connected to the front surface of the sliding wheel (21), and a push rod (24) is connected to the inside of the rotating disc (22) through a connecting spring (23);

two clamping rods (31) with one end connected through pins are arranged in the clamping piece, a first supporting spring (32) is fixedly connected between the two clamping rods (31), clamping blocks (33) are fixedly connected to the outer walls of the clamping rods (31), the clamping rods (31) are rotatably connected with convex discs (35) through connecting rods (34), convex blocks (36) are fixedly connected to the outer walls of the convex discs (35), and a clamping plate (37) arranged on the outer side of a cargo carrying track is fixedly connected to one end, far away from the connecting position, of the clamping rods (31);

the utility model discloses a cargo carrying platform, including cargo carrying platform body (1), locating part and limiting spring, the locating part is equipped with fix dead lever (41) inside cargo carrying platform body (1), arc wall (42) have been seted up to the inside of dead lever (41), the inside sliding connection of arc wall (42) has arc slider (43), the front rotation of arc slider (43) is connected with arc pole (44), the inside sliding connection of dead lever (41) has locating lever (45), the outer wall connection of locating lever (45) through spacing spring (46) and dead lever (41).

2. The stacker load table overspeed protection apparatus of claim 1, wherein: two clamping blocks (33) fixedly connected with the outer wall of the clamping rod (31) are arranged on the upper side and the lower side of the sliding wheel (21), and the inner sides of the clamping blocks (33) are arc-shaped structures matched with the outer wall of the sliding wheel (21).

3. The stacker load table overspeed protection apparatus of claim 1, wherein: a plurality of spouts (371) have been seted up to the inside of grip block (37), the internally mounted of spout (371) has stopper (372), the inside of spout (371) is connected with reducing gear (374) through second supporting spring (373), one side that reducing gear (374) extended grip block (37) sets up in the orbital outside of carrying cargo, the outer wall of reducing gear (374) is equipped with speed reduction tooth (375) and projection (376).

4. The stacker load table overspeed protection apparatus of claim 1, wherein: the projection (36) faces one side of the rotary disk (22).

5. The stacker load table overspeed protection apparatus of claim 1, wherein: one side of the arc-shaped rod (44) far away from the arc-shaped sliding block (43) is fixedly connected with the outer wall of the clamping rod (31).

6. The stacker load table overspeed protection apparatus of claim 1, wherein: one side of the limiting rod (45) close to the arc-shaped sliding block (43) is of an arc-shaped structure, and the other side of the limiting rod is of a horizontal structure.

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