CN220393145U - Hook assembly for falling off balance weight and balance weight falling-off device - Google Patents

Abstract

The utility model discloses a hook component for falling a balancing weight and a balancing weight falling device, wherein the hook component for falling the balancing weight comprises a movable hanging piece, the movable hanging piece comprises a main plate part which can be arranged on a balancing arm in an inner and outer swinging way, and a swinging driving part and a hook part which are respectively arranged at the upper end and the lower end of the main plate part, wherein the hook part is inwards bent and extended from the lower end of the main plate part and is used for hanging a balancing weight unit, and the swinging driving part is used for inwards swinging under the driving action of a trigger piece so as to enable the hook part to outwards swing and unlock the hanging of the balancing weight unit, thereby inhibiting the upward movement of a suspension arm caused by the drastic change of the borne instantaneous load, reducing or avoiding the bending moment impact on a tower body, effectively reducing the risk of a overturning accident, and obviously meeting the anti-overturning performance requirement of an ultra-large tower machine through the falling balancing weight unit in the way compared with the existing anti-overturning design mode.

Description

Hook assembly for falling off balance weight and balance weight falling-off device

Technical Field

The utility model belongs to the technical field of hoisting equipment, and particularly relates to a hook assembly for falling off a counterweight and a counterweight falling-off device.

Background

The tower crane may generally include a tower body and a top mount, which may include a boom for lifting a hoist and a counterweight for counterweight to balance the boom moment. In some large-scale tower crane applications, because the hoisted objects are heavy, the weight of the counterweight used for the counterweight at the side of the balance arm is also heavy, when the hoisted objects fall off, a huge overturning moment is generated on the tower body, and strong impact is generated on the tower body, so that the risk of overturning exists in the tower crane, and therefore, the anti-overturning performance of the tower crane under the sudden unloading working condition needs to be fully considered in the design of the tower crane.

At present, the traditional tower crane generally achieves the aim of improving the anti-overturning performance of the tower crane by adjusting the mass distribution of the whole machine and enhancing the strength of the tower body. However, with the increase of the lifting weight, the mode is difficult to meet the requirement of the anti-overturning performance of the ultra-large tower crane, and particularly under the condition of sudden unloading such as the breakage of a steel wire rope of a hanging load, the instantaneous load born by the suspension arm is changed drastically, huge bending moment impact is generated on the tower body, and the anti-overturning design is more difficult to play an effective role.

Disclosure of Invention

The utility model provides a hook component for falling off a balancing weight and a balancing weight falling-off device, aiming at solving the technical problem that the existing anti-overturning design mode is difficult to meet the anti-overturning performance requirement of a super-large tower crane.

In order to achieve the above-mentioned object, the present utility model provides a hook assembly for falling off a balancing weight, wherein the hook assembly for falling off a balancing weight comprises a movable hanging member, the movable hanging member comprises a main plate part which is arranged on a balancing arm in a rotatable manner inside and outside, and a swinging driving part and a hook part which are respectively arranged at the upper end and the lower end of the main plate part, the hook part is arranged from the lower end of the main plate part in a bending and extending manner inwards and is used for hanging a balancing weight unit, and the swinging driving part is used for swinging inwards under the driving action of a trigger member so that the hook part swings outwards and unlocks the hanging of the balancing weight unit.

In the embodiment of the utility model, the hook component for falling the balancing weight further comprises a serial rod arranged on the balancing arm, and the main board part is provided with a serial hole penetrated by the serial rod.

In the embodiment of the utility model, the number of the movable hanging parts is multiple, and the plurality of the movable hanging parts are sequentially sleeved on the string link rod at intervals.

In the embodiment of the utility model, the main board part is arranged in a bulge manner at the position where the serial holes are formed.

In the embodiment of the utility model, the swing driving part is outwards bent and extended from the upper end of the main plate part, and one end of the swing driving part, which is far away from the main plate part, is used for being sequentially abutted with the groove part and the boss part which are adjacently arranged on the trigger part under the condition that the trigger part performs traction movement.

In the embodiment of the utility model, the end of the swing driving part, which is far away from the main board part, is provided with the roller which is used for being abutted with the groove part and the boss part.

In the embodiment of the utility model, the swing driving part is in a triangular plate shape, the bottom edge of the swing driving part is connected with the upper end of the main board part, the vertex is far away from the main board part, the end, close to the vertex, of the swing driving part is provided with the mounting vertical shaft, the roller is sleeved on the mounting vertical shaft, and one side, far away from the main board part, of the roller extends out of the swing driving part.

In order to achieve the above object, the present utility model also provides a balancing weight shedding device, wherein the balancing weight shedding device comprises a balancing weight assembly and a hook assembly for balancing weight shedding according to the above, and the balancing weight assembly comprises a balancing weight unit for being hung on a hook portion.

In the embodiment of the utility model, the left side and the right side of the balancing weight unit are respectively provided with the step surfaces which are downwards arranged, the number of the hook assemblies is two, and the two hook assemblies are respectively arranged at the left side and the right side of the balancing weight unit and are hooked on the corresponding step surfaces in a one-to-one correspondence manner.

Through the technical scheme, the hook component for falling off of the balancing weight provided by the embodiment of the utility model has the following beneficial effects:

when the hook assembly for falling the balancing weight is used, the movable hanging piece is included, the main board part of the movable hanging piece can be arranged on the balancing arm in an inward-outward swinging mode, the swinging driving part and the hook part are arranged at the upper end and the lower end of the main board part, the hook part is bent inwards and extends from the lower end of the main board part to realize hanging of the balancing weight unit on the balancing arm, the swinging driving part is used for inwards swinging under the driving action of the triggering piece, so that the hook part swings outwards and unlocks the hanging of the balancing weight unit, namely, under the condition that the tower crane has a tilting risk, the triggering piece can be controlled to apply an inward-swinging acting force to the swinging driving part of the movable hanging piece so as to drive the swinging driving part to swing inwards, and meanwhile, the hook part at the lower end of the main board part swings outwards and gradually breaks away from the balancing weight unit until the balancing weight unit falls off from the hook part, thereby the upward movement of the balancing weight unit, which is caused by the severe change of the instantaneous load born by the balancing weight, is reduced or avoided, the moment impact on the tower body is effectively reduced, the occurrence of the tilting accident is remarkably reduced, compared with the existing anti-tilting performance requirements of the anti-tilting tower crane in a more obvious manner.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide an understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic view of a hanging assembly and a trigger according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a balancing weight shedding device disposed at the end of a balancing arm according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a counterweight unit mounted on a movable mount according to an embodiment of the utility model;

fig. 4 is a schematic view showing a structure in which a balancing weight unit is detached from a movable mount according to an embodiment of the present utility model.

Description of the reference numerals

1. Hook component 11 movable hanging piece

111. Main board 112 swing driving part

113. Hook 114 roller

115. Mounting vertical shaft 12 series bar

2. Balance weight assembly 21 balance weight unit

211. Step surface 3 trigger piece

31. Groove portion 32 boss portion

4. Balance arm of traction mechanism 5

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present utility model.

The hook assembly for balancing weight shedding and the balancing weight shedding device according to the present utility model will be described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present utility model provides a hook assembly for falling off a counterweight, wherein the hook assembly for falling off a counterweight includes:

the movable hanging piece 11, the movable hanging piece 11 comprises a main board part 111 which can be arranged on the balance arm 5 in an internal and external swinging way, and swinging driving parts 112 and a hook part 113 which are respectively arranged at the upper end and the lower end of the main board part 111, wherein the hook part 113 is arranged in an inward bending and extending way from the lower end of the main board part 111 and is used for hanging the counterweight unit 21, and the swinging driving parts 112 are used for swinging inwards under the driving action of the trigger piece 3 so that the hook part 113 swings outwards and unlocks the hanging of the counterweight unit 21.

When the hook assembly for falling off the balancing weight is used, the movable hanging piece 11 is included, the main board 111 of the movable hanging piece 11 can be arranged on the balancing arm 5 in an inward-outward swinging manner, the swinging driving part 112 and the hook 113 are respectively arranged at the upper end and the lower end of the main board 111, the hook 113 is inwards bent and extended from the lower end of the main board 111 to hang the balancing weight unit 21 on the balancing arm 5, the swinging driving part 112 is used for inwards swinging under the driving action of the trigger piece 3, so that the hook 113 outwards swings and unlocks the hanging of the balancing weight unit 21, namely, under the condition that the tower crane has a tilting risk, the trigger piece 3 can be controlled to apply inwards swinging force to the swinging driving part 112 of the movable hanging piece 11 so as to drive the swinging driving part 112 to inwards swing, and meanwhile, the hook 113 at the lower end of the main board 111 can outwards swing and gradually separate from the balancing weight unit 21 until the balancing weight unit 21 falls off from the main board 113, thereby the moment change of the hanging arm can be restrained, the moment change borne by the moment of the hanging arm can be greatly reduced, the moment of the hanging arm can be prevented from falling off the balancing weight unit, the moment can be remarkably reduced, the moment of the tower crane can be prevented from falling off the tower crane by the moment, and the tower crane can be designed to have better performance than the moment that the tower crane has the anti-tilting performance, and the tower can be obviously reduced compared with the existing anti-tilting performance.

It should be noted that, the trigger 3 may be a trigger lever, which is disposed on the outer side of the swing driving portion 112 and has a groove portion 31 and a boss portion 32 formed on the inner side, and when the boom (the arm) is in a horizontal state, the groove portion 31 of the trigger 3 abuts against the swing driving portion 112 to stably support the hanging of the counterweight unit 21, specifically, see fig. 3, and when the arm is in a raised state, the trigger 3 moves and moves from the groove portion 31 to the boss portion 32 to abut against the swing driving portion 112, and due to a size abrupt change from the groove portion 31 to the boss portion 32, the swing driving portion 112 can be driven to swing inwards, specifically, see fig. 4. Specifically, the trigger 3 may be driven to move by the traction mechanism 4. Of course, the utility model is not limited to this, and the triggering element 3 may be directly provided as a driving element such as electrohydraulic driving or electromagnetic driving.

Referring to fig. 1, in the embodiment of the present utility model, the hook assembly for falling off the balancing weight further includes a serial rod 12 disposed on the balancing arm 5, and a serial hole through which the serial rod 12 is inserted is formed in the main plate portion 111. Namely, the movable hanging piece 11 can be arranged on the balance arm 5 in an inward-outward deflection manner through the serial link rod 12, and the structure is simple and reliable, and is convenient to install.

In the embodiment of the present utility model, the number of the movable hanging parts 11 may be plural, and the plurality of movable hanging parts 11 are sequentially sleeved on the string link rod 12 at intervals. Due to the plurality of movable hanging pieces 11 in the hook assembly 1, the plurality of balancing weight units 21 can be hung on the balancing arm 5 in a falling-off manner, and the corresponding number of balancing weight units 21 can be selected to fall off according to the lifting state of the lifting arm, so that the balancing weight can be fallen off in a grading manner. Specifically, the hook portions 113 of the plurality of movable hanging members 11 are hung with a plurality of counterweight units 21 in a one-to-one correspondence, and the number of the triggering members 3 may be the same as the number of the movable hanging members 11, so that the triggering members 3 are arranged in a one-to-one correspondence with the swing driving portions 112 of the movable hanging members 11, when the triggering members 3 are triggering levers, the triggering levers are provided with a plurality of groove portions 31 and a plurality of boss portions 32 which are alternately arranged in turn, in a state in which the boom is horizontal, the swing driving portions 112 of the plurality of movable hanging members 11 are abutted with the plurality of groove portions 31 in a one-to-one correspondence, and in a state in which the boom is raised, the triggering members 3 are moved according to the raised state of the boom, so that the triggering members 3 are moved to the at least one boss portion 32 is abutted with the corresponding swing driving portions 112.

In the embodiment of the present utility model, the main plate 111 is provided in a raised shape at the position where the serial holes are provided. The bulge can thicken the position provided with the serial holes by the main board part 111 so as to ensure the strength of the movable hanging piece 11.

In the embodiment of the present utility model, the swing driving portion 112 is bent and extended outwards from the upper end of the main plate portion 111, and one end of the swing driving portion 112 away from the main plate portion 111 is used for sequentially abutting against the groove portion 31 and the boss portion 32 adjacently disposed on the trigger 3 when the trigger 3 performs traction movement. That is, the swing driving portion 112 and the hooking portion 113 are extended and disposed away from each other, and the swing driving portion 112 extends laterally beyond the main plate portion 111 to abut against the groove portion 31 or the boss portion 32, so that the stability of the movable mount 11 can be further enhanced.

Referring to fig. 1 again, in the embodiment of the present utility model, a roller 114 for abutting against the groove portion 31 and the boss portion 32 is provided at an end of the swing driving portion 112 away from the main plate portion 111. That is, the swing driving portion 112 can be in rolling contact with the groove portion 31 and the boss portion 32 through the roller 114, so that smoothness of movement of the trigger 3 is ensured and abnormal abrasion phenomenon of the swing driving portion 112 is avoided.

In the embodiment of the utility model, the swing driving part 112 is in a triangle plate shape, the bottom side of the swing driving part 112 is connected with the upper end of the main board part 111, the vertex is far away from the main board part 111, one end of the swing driving part 112 near the vertex is provided with the mounting vertical shaft 115, the roller 114 is sleeved on the mounting vertical shaft 115, and one side of the roller 114 far away from the main board part 111 extends out of the swing driving part. The swing driving part 112 is formed in a triangular plate shape, and the roller 114 is installed at the apex of the triangle, so that the force applied to the movable mount 11 by the trigger 3 is more concentrated.

Referring to fig. 2, in order to achieve the above object, the present utility model also provides a balancing weight shedding device, wherein the balancing weight shedding device comprises a balancing weight assembly 2 and a hook assembly for balancing weight shedding according to the above, and the balancing weight assembly 2 comprises a balancing weight unit 21 for hanging on a hook portion 113. Because the balancing weight shedding device adopts all the technical schemes of the above embodiments, the balancing weight shedding device at least has all the beneficial effects brought by the technical schemes of the above embodiments, and is not described in detail herein.

As shown in fig. 4, in the embodiment of the present utility model, the left and right sides of the counterweight unit 21 are formed with the step surfaces 211 disposed downward, the number of the hook assemblies 1 is two, and the two hook assemblies 1 are respectively disposed on the left and right sides of the counterweight unit 21 and are hooked on the corresponding step surfaces 211 in a one-to-one correspondence. The step surface 211 on the counterweight unit 21 is arranged so as to facilitate the hanging and falling-off of the counterweight unit 21 on the movable hanging member 11. Specifically, the triggering rods serving as the triggering pieces 3 may be disposed on the outer sides of the two hook assemblies 1 in a one-to-one correspondence manner, so as to trigger and unlock the movable hanging pieces 11 in the two hook assemblies 1, respectively.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (9)

1. The utility model provides a balanced heavy for coming off hook assembly which characterized in that, balanced heavy for coming off hook assembly includes:

the movable hanging piece (11) comprises a main plate part (111) which can be arranged on the balance arm (5) in an internal and external swinging way, and swinging driving parts (112) and hook parts (113) which are respectively arranged at the upper end and the lower end of the main plate part (111), wherein the hook parts (113) are arranged from the lower end of the main plate part (111) in an inward bending and extending way and are used for hanging the balance weight unit (21), and the swinging driving parts (112) are used for swinging inwards under the driving action of the trigger piece (3) so that the hook parts (113) swing outwards and unlock the hanging of the balance weight unit (21).

2. The hook assembly for balancing weight shedding according to claim 1, further comprising a serial rod (12) provided on the balancing arm (5), wherein serial holes through which the serial rod (12) passes are provided on the main plate portion (111).

3. The hook assembly for falling off of balancing weights according to claim 2, wherein the number of the movable hanging pieces (11) is plural, and the plurality of the movable hanging pieces (11) are sequentially sleeved on the serial rod (12) at intervals.

4. The hook assembly for balancing weight shedding according to claim 2, wherein the main plate portion (111) is provided in a raised shape at a position where the serial holes are provided.

5. The hook assembly for falling off of a counterweight according to claim 1, wherein the swing driving portion (112) is provided to extend from an upper end of the main plate portion (111) in a bent outward manner, and an end of the swing driving portion (112) away from the main plate portion (111) is adapted to sequentially abut against a groove portion (31) and a boss portion (32) provided adjacently on the trigger member (3) when the trigger member (3) is pulled and moved.

6. The hook assembly for falling off of a counterweight according to claim 5, wherein an end of the swing driving portion (112) away from the main plate portion (111) is provided with a roller (114) for abutting against the groove portion (31) and the boss portion (32).

7. The hook assembly for falling off of a counterweight according to claim 6, wherein the swing driving part (112) is provided in a triangular plate shape, a bottom edge of the swing driving part (112) is connected with an upper end of the main plate part (111), a vertex is provided away from the main plate part (111), one end of the swing driving part (112) near the vertex is provided with a mounting vertical shaft (115), the roller (114) is sleeved on the mounting vertical shaft (115), and one side of the roller (114) away from the main plate part (111) extends out of the swing driving part (112).

8. A counterweight removal device, characterized in that the counterweight removal device comprises a counterweight assembly (2) and a hook assembly for counterweight removal according to any one of claims 1 to 7, the counterweight assembly (2) comprising a counterweight unit (21) for hanging on the hook portion (113).

9. The balancing weight shedding device according to claim 8, wherein the balancing weight unit (21) is formed with step surfaces (211) arranged downwards on the left side and the right side, the number of the hook assemblies (1) is two, and the two hook assemblies (1) are respectively arranged on the left side and the right side of the balancing weight unit (21) and are hooked on the corresponding step surfaces (211) in a one-to-one correspondence manner.