CN219280672U

CN219280672U - Dynamic compactor with arm support rebound prevention device

Info

Publication number: CN219280672U
Application number: CN202320458074.4U
Authority: CN
Inventors: 何秀丽
Original assignee: Shanghai Deshu Furniture Co ltd
Current assignee: Shanghai Deshu Furniture Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-06-30
Anticipated expiration: 2033-03-13

Abstract

The utility model discloses a dynamic compactor with an arm support rebound prevention device, which relates to the technical field of dynamic compactors and comprises a dynamic compactor and a counterweight device, wherein the dynamic compactor comprises a main arm, a group of hydraulic cylinders are arranged at the bottom end of the counterweight device, the top end of the main arm is connected with an arm support, the top end of the arm support is provided with a fixed seat, the bottom end of the arm support is provided with a lifting hook, one side of the fixed seat is provided with a connecting seat, the top end of the connecting seat is provided with a first buffer oil cylinder, a piston rod at the top end of the first buffer oil cylinder is connected with and fixed with the top end of the arm support, the bottom end of the arm support is provided with a second buffer oil cylinder, and the side surface of the bottom end of the second buffer oil cylinder is provided with a glib. When the boom rebounds severely, the boom rebounds upwards, and a pulling force is generated on the bottom end of the boom through the first buffer oil cylinder, so that the rebound speed of the boom is slowed down, meanwhile, the second buffer oil cylinder on the top end of the boom applies a pushing force on the boom, the speed is further slowed down, the boom rebounds slowly, the dynamic compactor is more stable, and the dynamic strength is improved.

Description

Dynamic compactor with arm support rebound prevention device

Technical Field

The utility model relates to the technical field of dynamic compaction machines, in particular to a dynamic compaction machine with an arm support rebound prevention device.

Background

Currently, the dynamic compactor has a very wide application range, for example, the dynamic compactor is applied to industrial and civil buildings, warehouses, yards, wharf airports, roads and bridges, artificial islands, oil storage tanks and the like. The dynamic compaction is to hang the rammer to a proper height and then enable the rammer to fall freely, the rammer applies strong impact and vibration to the foundation to damage the structure of the foundation soil, compress pores, locally liquefy the soil body, discharge pore water and gas through cracks, and solidify the foundation soil under a new condition, so that the bearing capacity of the foundation is improved, and the compressibility of the foundation is reduced; in the dynamic compaction process, the compaction energy can also improve the uniformity of soil layers and reduce the differential settlement of the foundations possibly occurring. The dynamic compaction machine is typical construction equipment for realizing dynamic compaction, and has the advantages of economy, easiness in implementation, simplicity in equipment, convenience in construction, easiness in quality control, wide application range, short construction period and the like, so that the dynamic compaction machine is rapidly popularized in engineering application.

In the construction process of the dynamic compactor, the rammer is repeatedly lifted and released, and the load at the front end of the dynamic compactor suddenly disappears because the rammer is suddenly released when the dynamic compactor is lifted to a certain height, so that the boom is caused to shake violently, and the whole machine is caused to shake violently. The shaking of the arm support can bring a plurality of negative effects, so that the operation comfort of a manipulator is reduced, and the dynamic strength is improved; after the complete machine is rocked and stopped, the machine operator can continue to operate, so that the construction efficiency is seriously affected; the fatigue life of the steel structural member and the components is also seriously affected by the intense shaking of the whole machine.

Disclosure of Invention

Based on the above, the present utility model aims to provide a dynamic compactor with an arm support rebound prevention device, so as to solve the technical problems set forth in the background.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the dynamic compactor comprises a dynamic compactor and a counterweight device, wherein the dynamic compactor comprises a main arm, a group of hydraulic cylinders are arranged at the bottom end of the counterweight device, the top end of the main arm is connected with an arm support, a fixing seat is arranged at the top end of the arm support, a lifting hook is arranged at the bottom end of the arm support, a connecting seat is arranged on one side of the fixing seat, a first buffer oil cylinder is arranged at the top end of the connecting seat, a piston rod at the top end of the first buffer oil cylinder is connected with and fixed at the top end of the arm support, a second buffer oil cylinder is arranged at the bottom end of the arm support, and a nozzle is arranged at the side surface of the bottom end of the second buffer oil cylinder.

Preferably, the top end of the first buffer oil cylinder is fixedly connected with the top end of the arm support through a fixing pin, and the bottom end of the first buffer oil cylinder is fixedly connected with the fixing seat.

Preferably, a push plate is arranged at the bottom end inside the first buffer oil cylinder, a spring is arranged at the top end of the push plate, a piston rod is arranged above the spring, and the piston rod is provided with a round hole which is matched with the size of the fixing pin.

Preferably, the fixing seat is provided with a groove matched with the connecting seat, and the side surface of the fixing seat is provided with a round hole matched with the fixing pin and penetrates through the fixing seat.

Preferably, the fixing seat is installed at the bottom end of the main arm, and the bottom end of the fixing seat is provided with a round hole which is matched with the fixing pin and penetrates through the round hole.

Preferably, one end of the oil pipe is connected with the oil nozzle of the first buffer oil cylinder, and the other end of the oil pipe is connected with the oil nozzle of the second buffer oil cylinder.

In summary, the utility model has the following advantages:

according to the utility model, when the boom rebounds violently, the boom rebounds upwards, a tensile force is generated on the bottom end of the boom through the first buffer oil cylinder, so that the rebound speed of the boom is slowed down, meanwhile, the second buffer oil cylinder on the top end of the boom applies a pushing force to the boom, the speed is further slowed down, the boom rebounds slowly, the boom is prevented from rebounding to cause the violent shaking of the whole dynamic compactor, the service life of internal elements of the dynamic compactor is prolonged, and the construction efficiency is further improved.

Drawings

FIG. 1 is a front view of a dynamic compactor of the present utility model;

FIG. 2 is a schematic diagram of a dynamic compactor of the present utility model;

FIG. 3 is a schematic diagram of the inside of the buffer cylinder according to the present utility model;

fig. 4 is a schematic view of a fixing base of the present utility model.

In the figure: 100. a dynamic compactor; 110. a main arm; 120. arm support; 121. a lifting hook; 130. a first buffer cylinder; 131. a push plate; 132. a piston rod; 133. a nipple; 134. a spring; 140. a second buffer cylinder; 150. a fixing seat; 151. a fixing pin; 160. a connecting seat; 170. an oil pipe; 180. a counterweight device; 190. and a hydraulic cylinder.

Detailed Description

The technical solutions in 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. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

1-4, including dynamic compactor 100 and counter weight device 180, dynamic compactor 100 includes main arm 110, and counter weight device 180 bottom is equipped with a set of pneumatic cylinder 190, and main arm 110 top is connected with cantilever crane 120, and cantilever crane 120 top is equipped with fixing base 150, and the bottom is equipped with lifting hook 121, and fixing base 150 one side is equipped with connecting seat 160, and connecting seat 160 top is equipped with first buffer cylinder 130, and the piston rod 132 at first buffer cylinder 130 top is connected fixed cantilever crane 120 top, and the cantilever crane 120 bottom is equipped with second buffer cylinder 140, and second buffer cylinder 140 bottom side is equipped with glib 133.

When the arm support 120 rebounds severely, the arm support 120 rebounds upwards, a pulling force is generated on the bottom end of the arm support 120 through the first buffer oil cylinder 130, so that the rebound speed of the arm support 120 is slowed down, meanwhile, the second buffer oil cylinder 140 on the top end of the arm support 120 applies a pushing force on the arm support 120, the speed is further slowed down, the arm support 120 rebounds slowly, the dynamic compactor is more stable, and the dynamic strength is improved.

Referring to fig. 1 and 3, the top end of the first buffer cylinder 130 is fixedly connected to the top end of the arm support 120 by a fixing pin 151, the bottom end of the first buffer cylinder is fixedly connected to the fixing seat 150, a push plate 131 is disposed at the bottom end inside the first buffer cylinder 130, a spring 134 is disposed at the top end of the push plate 131, a piston rod 132 is disposed above the spring 134, and the piston rod 132 has a circular hole matching the size of the fixing pin 151.

The rebound force of the arm support 120 is relieved, and the reaction force of the first buffer oil cylinder 130 and the second buffer oil cylinder 140 to the arm support 120 is enhanced.

Referring to fig. 2, the fixing base 150 is provided with a groove matching the connecting base 160, a circular hole matching the fixing pin 151 is provided on a side surface and penetrates through the fixing base 150, the fixing base 150 is mounted at the bottom end of the main arm 110, and a circular hole matching the fixing pin 151 is provided at the bottom end of the fixing base 150 and penetrates through.

The oil cylinder can conveniently swing up and down along with the arm support 120, and the main arm 110 and the oil cylinder on the arm support 120 can be better fixed.

Referring to fig. 2, an oil pipe 170 has one end connected to the nozzle 133 of the first buffer cylinder 130 and one end connected to the nozzle 133 of the second buffer cylinder 140.

The first buffer cylinder 130 and the second buffer cylinder 140 are better used for applying reaction force to the arm support 120 at the same time.

When the hydraulic dynamic compactor is used, when a heavy object on the lifting hook 121 rapidly drops to the ground, the arm support 120 is hard to rebound under the influence of inertia, at the moment, the piston rod 132 in the second buffer oil cylinder 140 applies a reaction force to the arm support 120 to slow down the rebound force of the arm support 120, meanwhile, when oil in the second buffer oil cylinder 140 flows into the first buffer oil cylinder 130 through the oil pipe 170, a pushing force is applied to the pushing plate 131 to enable the first buffer oil cylinder 130 to apply a downward force to counteract the upward force of the arm support 120, the rebound force of the arm support 120 is further slowed down, the arm support 120 slowly rises, meanwhile, the side face of the hydraulic dynamic compactor is additionally provided with the counterweight device 180, the ground is firmly adsorbed by the sucker at the bottom end of the hydraulic cylinder 190, the whole dynamic compactor 100 is effectively prevented from being severely rocked due to rebound of the arm support 120, the service life of internal elements of the dynamic compactor 100 is prolonged, and the construction efficiency is further enhanced.

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims

1. The utility model provides a dynamic compaction machine with prevent cantilever crane bounce-back device, includes dynamic compaction machine (100) and counter weight device (180), its characterized in that: the dynamic compactor (100) comprises a main arm (110), a set of hydraulic cylinders (190) are arranged at the bottom end of a counterweight device (180), an arm support (120) is connected to the top end of the main arm (110), a fixing seat (150) is arranged at the top end of the arm support (120), a lifting hook (121) is arranged at the bottom end of the arm support, a connecting seat (160) is arranged on one side of the fixing seat (150), a first buffer cylinder (130) is arranged at the top end of the connecting seat (160), a piston rod (132) at the top end of the first buffer cylinder (130) is connected with the top end of the fixed arm support (120), a second buffer cylinder (140) is arranged at the bottom end of the arm support (120), and a nozzle (133) is arranged on the side surface of the bottom end of the second buffer cylinder (140).

2. The dynamic compactor with the boom rebound prevention device according to claim 1, wherein: the top end of the first buffer oil cylinder (130) is fixedly connected with the top end of the arm support (120) through a fixing pin (151), and the bottom end of the first buffer oil cylinder is fixedly connected with the fixing seat (150).

3. The dynamic compactor with the boom rebound prevention device according to claim 1, wherein: the novel hydraulic buffer is characterized in that a push plate (131) is arranged at the bottom end inside the first buffer oil cylinder (130), a spring (134) is arranged at the top end of the push plate (131), a piston rod (132) is arranged above the spring (134), and the piston rod (132) is provided with a round hole which is matched with the size of the fixing pin (151).

4. The dynamic compactor with the boom rebound prevention device according to claim 1, wherein: the fixing seat (150) is provided with a groove matched with the connecting seat (160), and the side surface of the fixing seat is provided with a round hole matched with the fixing pin (151) and penetrates through the fixing seat (150).

5. The dynamic compactor with the boom rebound prevention device according to claim 1, wherein: the fixed seat (150) is arranged at the bottom end of the main arm (110), and a round hole for anastomosing the fixed pin (151) is arranged at the bottom end of the fixed seat (150) and penetrates through the fixed seat.

6. The dynamic compactor with the boom rebound prevention device according to claim 1, wherein: one end of the oil pipe (170) is connected with the oil nozzle (133) of the first buffer oil cylinder (130), and the other end of the oil pipe is connected with the oil nozzle (133) of the second buffer oil cylinder (140).