CN219430643U - Impact weight anti-swing device - Google Patents

Abstract

The utility model relates to the technical field of reef removal of heavy hammers, and particularly discloses an impact heavy hammer anti-swing device. The steel cable limiter comprises a steel cable limiter with a through hole and a limiting cap detachably mounted on a heavy hammer, wherein a limiting cavity capable of allowing the limiting cap to be inserted is formed in the lower end of the steel cable limiter, a plurality of clamping pieces used for limiting the swing of the heavy hammer are uniformly distributed at the lower end of the steel cable limiter, and a slot capable of allowing a steel cable to pass through is formed in one side, far away from a suspension arm, of the steel cable limiter. The utility model aims to solve the problem that the conventional heavy hammer cannot be quickly stabilized after swinging during reef removal operation.

Description

Impact weight anti-swing device

Technical Field

The application relates to the technical field of reef removal of heavy hammers, and particularly discloses an impact heavy hammer anti-swing device.

Background

In channel repair or harbor pool dredging projects, underwater reefs are frequently cleaned. At present, the most commonly used method is underwater blasting and reef cleaning, but the blasting and reef cleaning can generate blasting vibration, impact vibration and ground contact vibration, and can also generate dangerous sources such as water hammer waves, blasting surge and the like, so that the method has a great safety threat to constructors, construction ships, marine organisms, and buildings and residents nearby on land, and particularly when the reef cleaning is performed nearby a built wharf structure, the wharf leading edge foundation bed or pile foundation is easy to damage. Therefore, in the face of some projects which are not suitable for adopting a blasting method to clear reefs, static treatment or mechanical treatment is adopted generally, wherein the vibration, the water hammer wave and the surge generated by a hammering method are small, the safety of nearby buildings is facilitated, the influence on daily life of surrounding residents is small, and the method is gradually popularized and adopted in engineering practice.

The utility model provides a pendulum anti-collision device, which is characterized in that when a heavy hammer for reef removal is used for lifting a crane boom on the water surface to adjust an impact point, the heavy hammer swings on the boom usually due to the movement of the boom, the movement of a working ship and the fluctuation of the water surface, but when the heavy hammer is directly lowered during swinging, the impact point is possibly deviated, the heavy hammer has large mass, the heavy hammer can be quickly adjusted in the free falling process, the working ship is rocked, and the impact point is possibly deviated, so that the reef removal effect is affected.

Disclosure of Invention

The utility model aims to solve the problem that the conventional heavy hammer cannot be quickly stabilized after swinging during reef removal operation.

In order to achieve the above purpose, the basic scheme of the utility model provides an impact weight anti-swing device, which comprises a steel cable limiter with a through hole and a limiting cap detachably arranged on a weight, wherein the lower end of the steel cable limiter is provided with a limiting cavity capable of allowing the limiting cap to be inserted, the lower end of the steel cable limiter is uniformly provided with a plurality of clamping pieces for limiting the swing of the weight, and one side of the steel cable limiter far away from a suspension arm is provided with a slot capable of allowing a steel cable to pass through.

The principle and effect of this basic scheme lie in:

1. in the reef removing process by utilizing the heavy hammer, the heavy hammer is required to be hoisted to a certain height to obtain gravitational potential energy to finish reef removing, so that the device is arranged on a boom of a crane and accords with the reef removing height, then a steel rope for pulling the heavy hammer is placed in a through hole of a steel rope limiter, and when the heavy hammer is pulled and lifted to the lower end of the steel rope limiter, at the moment, if the heavy hammer swings, the swing amplitude of the steel rope which is closer to the heavy hammer is larger, so that when the heavy hammer approaches to the steel rope limiter, the limit on the steel rope which is sleeved in the steel rope limiter is larger, after the heavy hammer approaches to the steel rope limiter gradually, the swing amplitude of the steel rope is also limited gradually, and therefore the effects of limiting the swing of the heavy hammer and reducing the swing of the heavy hammer rapidly are achieved by limiting the steel rope which is close to the heavy hammer.

2. Meanwhile, as the heavy hammer is continuously lifted, the steel rope with smaller swing amplitude, which is far away from the heavy hammer, above the heavy hammer can be limited in the steel rope limiter, so that the swing amplitude of the heavy hammer can be gradually reduced in the lifting process of the heavy hammer.

3. After the heavy hammer is lifted to a specified height, the limiting cap is inserted into the limiting cavity, and the heavy hammer is clamped by the clamping plate, so that the heavy hammer is limited in swinging; when the operation ship needs to be moved or the impact point needs to be adjusted, the heavy hammer can be clamped into the clamping plate, and the limiting cap is inserted into the limiting cavity, so that the condition that the heavy hammer swings can be effectively reduced during adjustment operation, and the operation can be started when the operation point is reached.

Compared with the prior art, the steel cable limiter is fixed on the rigid suspension arm, so that the steel cable limiter can limit the swing of the heavy hammer before the swing, and can realize the rapid swing limit of the heavy hammer by lifting the height of the heavy hammer after the swing, thereby achieving the operation requirement, having simple operation, effectively improving the time interval of each free falling operation of the heavy hammer, improving the operation efficiency and reducing the operation period, and being convenient for popularization and use in the field.

Furthermore, the lower end of the steel cable limiter is fixedly connected with a limiting ring, one side of the limiting ring, which is far away from the suspension arm, is also provided with a slot through which the steel cable can pass, and the clamping pieces are fixedly connected with the outer side of the limiting ring. The steel cable is convenient to clamp into the steel cable limiter during installation.

Further, a sliding sheet for blocking the grooves is arranged on one side of the grooves of the steel rope limiter in a sliding mode, and a plurality of reinforcing plates are detachably connected to the grooves of the limiting rings. When the steel cable is placed in the use process, if the condition that the steel cable swings back and forth occurs, the sliding sheets and the reinforcing plates can be utilized for blocking.

Further, the inner side of the through hole and the inner side of the clamping piece are rotatably provided with a plurality of balls for reducing friction. And the working fluency is improved.

Further, the diameter of the upper end of the limiting cap is smaller than that of the lower end of the limiting cap, and the shape and the size of the limiting cavity are the same as those of the limiting cap. The limiting cap is convenient to insert into the limiting cavity, and meanwhile the swinging condition of the limiting cap in the limiting cavity is reduced.

Further, a mounting arm is fixedly connected to one side, facing the suspension arm, of the steel cable limiter. The installation stability is improved, and meanwhile, the installation arm with proper length is selected according to the lifting height of the heavy hammer, so that the steel cable of the lifting device is positioned at the center of the steel cable limiting sleeve when standing still.

Further, a stable steel cable connected with the suspension arm is arranged on the mounting arm. The use stability is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a structure of an impact weight anti-swing device according to an embodiment of the present disclosure;

FIG. 2 is a partial enlarged view A of an impact weight anti-swing device according to the embodiment of the present application;

FIG. 3 is a partial enlarged view B of the impact weight anti-swing device of FIG. 1 according to the embodiment of the present application;

FIG. 4 is a cross-sectional view of an impact weight anti-swing device according to the embodiment of the present application;

fig. 5 shows a schematic structural diagram of an impact weight anti-swing device as a limiting cap according to an embodiment of the present application.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

Reference numerals in the drawings of the specification include: the device comprises a mounting arm 1, a stable steel cable 2, a steel cable limiter 3, a through hole 4, a sliding sheet 5, a limiting ring 6, a clamping piece 7, a reinforcing plate 8, a limiting cavity 9, a limiting cap 10, a ball 11 and a clamping groove 12.

The embodiment shown in fig. 1 and 4 comprises a cylindrical steel cable limiter 3, a through hole 4 penetrating from top to bottom is formed in the middle of the steel cable limiter 3, a mounting arm 1 is welded on the rear side of the steel cable limiter 3, a rib connected with the outer wall of the steel cable limiter 3 is welded on the lower surface of the mounting arm 1, a mounting plate is welded on the rear end of the mounting arm 1, and a stable steel cable 2 is tied on the upper end of the mounting arm 1.

As shown in fig. 1 and 4, a limiting ring 6 is welded at the lower end of the steel cable limiter 3, a slot through which a steel cable can pass is formed in the front sides of the steel cable limiter 3 and the limiting ring 6, as shown in fig. 2, a sliding sheet 5 for blocking the slot is slidably arranged on one side of the slot of the steel cable limiter 3, a plurality of screw holes are formed in the sliding sheet 5 and the steel cable limiter 3, when in use, the sliding sheet 5 is inserted into the opposite side slot and locked by screws, a plurality of clamping grooves 12 capable of transversely covering the slot of the limiting ring 6 are formed near the slot of the limiting ring 6, a reinforcing plate 8 can be placed in the clamping grooves 12, screw holes are symmetrically formed in two ends of the reinforcing plate 8 and two sides of the clamping grooves 12, and the reinforcing plate 8 is locked in the slot by the screw holes and the screws.

As shown in fig. 1 and 4, a plurality of clamping plates are uniformly welded around the outer wall of the limiting ring 6, a plurality of balls 11 for reducing friction are rotatably arranged on the inner side of the through hole 4 and the inner side of the clamping piece 7, a limiting cavity 9 is processed at the lower end of the steel cable limiter 3, and a limiting cap 10 can be inserted into the limiting cavity 9. As shown in fig. 5, the limit cap 10 is detachable into two symmetrical arc covers, and after the two arc covers form a hollow limit cap 10, the diameter of the upper end of the limit cap 10 is smaller than that of the lower end of the limit cap 10, as shown in fig. 4, the shape of the limit cavity 9 is identical to the shape and the size of the limit cap 10.

When the device is used, the device is arranged on the suspension arm of the splint crane, before that, the installation arm 1 with proper length is selected according to the free falling height of the heavy hammer, the stable steel cable 2 is arranged, and then the subsequent installation can be carried out.

The steel cable of the crane is clamped into the steel cable limiter 3 and the limiting ring 6, the sliding sheets 5 cover the grooves, the screws are locked, the three reinforcing plates 8 are respectively clamped into the three clamping grooves 12, the screws are locked, the steel cable of the crane is connected with the heavy hammer, and then the limiting cap 10 is covered at the joint of the steel cable and the heavy hammer, so that the steel cable penetrates out from the upper end of the limiting cap 10, and the crane can be started to be used.

In use, the wire rope pulls the weight to rise, and the limit cap 10 is inserted into the limit cavity 9, during which the swinging weight can be stabilized or the subsequent swinging of the weight can be limited.

According to the utility model, the steel cable limiter 3 is fixed on the rigid suspension arm, so that the swing of the heavy hammer can be limited before the swing, and the quick swing limitation of the heavy hammer can be realized through the process of lifting the height of the heavy hammer after the swing occurs, so that the operation requirement is met, the operation is simple, the time gap of each free falling operation of the heavy hammer is effectively improved, the operation efficiency is improved, the operation period is reduced, and the device is convenient to popularize and use in the field.

The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.

Claims (7)

1. An impact weight anti-swing device, which is characterized in that: the steel cable limiter comprises a steel cable limiter with a through hole and a limiting cap detachably mounted on a heavy hammer, wherein a limiting cavity capable of allowing the limiting cap to be inserted is formed in the lower end of the steel cable limiter, a plurality of clamping pieces used for limiting the swing of the heavy hammer are uniformly distributed at the lower end of the steel cable limiter, and a slot capable of allowing a steel cable to pass through is formed in one side, far away from a suspension arm, of the steel cable limiter.

2. The anti-swing device for impact heavy hammer according to claim 1, wherein the lower end of the steel cable limiter is fixedly connected with a limiting ring, one side of the limiting ring away from the suspension arm is also provided with a slot for allowing the steel cable to pass through, and the clamping pieces are fixedly connected with the outer side of the limiting ring.

3. The impact weight anti-swing device according to claim 2, wherein a slide sheet for blocking the groove is slidably arranged on one side of the groove of the steel cable limiter, and a plurality of reinforcing plates are detachably connected to the groove of the limiting ring.

4. The impact weight swing preventing apparatus according to claim 1 or 2, wherein the inside of the through hole and the inside of the clip are rotatably provided with a plurality of balls for reducing friction.

5. The impact weight swing preventing device according to claim 1, wherein the diameter of the upper end of the limit cap is smaller than the diameter of the lower end of the limit cap, and the shape and the size of the limit cavity are the same.

6. The impact weight swing preventing device according to claim 1, wherein the wire rope stopper is fixedly connected with a mounting arm at a side facing the boom.

7. The impact weight swing preventing apparatus according to claim 6, wherein the mounting arm is provided with a stabilizing wire rope connected to the boom.