CN213682102U

CN213682102U - Vibrating pile driver

Info

Publication number: CN213682102U
Application number: CN202022012161.6U
Authority: CN
Inventors: 高国军; 李景; 吕宗辉; 程星星
Original assignee: Guangxi Liugong Machinery Co Ltd; Liugong Changzhou Machinery Co Ltd; Liuzhou Liugong Excavators Co Ltd
Current assignee: Guangxi Liugong Machinery Co Ltd; Liugong Changzhou Machinery Co Ltd; Liuzhou Liugong Excavators Co Ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-07-13
Anticipated expiration: 2030-09-15

Abstract

The utility model relates to a vibration pile driver, in order to solve the problem that the pile pulling capacity of the existing vibration pile driver is weaker under the condition of the same hydraulic system working pressure, the utility model constructs a vibration pile driver, the working device of which comprises a dipper, an auxiliary arm arranged at the front end of the dipper, a vibration pile hammer rotationally connected with the front end of the auxiliary arm, and a bucket oil cylinder arranged on the dipper; the rear end of the auxiliary arm is provided with two hinge holes, the bottom surface of the bucket rod is provided with an oil cylinder hinge seat, the rear end of the bucket oil cylinder is hinged with the oil cylinder hinge seat through a pin shaft, the front end of the bucket oil cylinder is connected with the lower hinge hole at the rear end of the auxiliary arm through a pin shaft, and the front end of the bucket rod is connected with the hinge hole at the upper part of the rear end of the auxiliary arm through a pin shaft. The utility model discloses in, during pile pulling operation, the no pole chamber oil feed of scraper bowl hydro-cylinder, the piston of scraper bowl hydro-cylinder stretches out, under same hydraulic system operating pressure condition, can obtain bigger effort to the pile pulling ability that makes the vibration pile driver promotes.

Description

Vibrating pile driver

Technical Field

The utility model relates to an engineering machine tool, more specifically say, relate to a vibration pile driver.

Background

The existing vibration pile driver is mainly formed by modifying a mature crawler excavator and is used for piling and pulling various steel sheet piles and the construction operation of cement piles.

The vibrating pile driver comprises a host and a working device, wherein the host is usually a crawler excavator host, and the working device comprises a movable arm, the rear end of the movable arm is rotationally connected with the host, the front end of the movable arm is rotationally connected with the bucket rod, and an auxiliary arm, the rear end of the auxiliary arm is rotationally connected with the front end of the bucket rod, and the front end of the auxiliary arm is rotationally connected with the vibrating pile driver; oil cylinders are arranged between the auxiliary arm and the bucket rod, between the bucket rod and the movable arm and between the movable arm and the host.

As shown in fig. 1, in the connection relationship between the sub arm 5 and the arm 1, the cylinder between the sub arm 5 and the arm 1 is the bucket cylinder 2 (in the excavator, the bucket is connected to the arm tip, and the bucket retracting operation is pushed by the expansion and contraction of the bucket cylinder). The bucket cylinder 2 is connected with the auxiliary arm through a rocker and a link mechanism. The rocker and link mechanism is mainly composed of a rocker 3 and a link 4. Two hinge holes are formed in the rear end of the auxiliary arm 5, the auxiliary arm 5 is rotatably connected with the hinge hole in the front end of the bucket rod 1 through the hinge hole 52 in the lower portion of the auxiliary arm, and the hinge hole 51 in the upper portion of the auxiliary arm is rotatably connected with the front end of the connecting rod 4. The lower end of the rocker 3 is rotatably connected with the bucket rod 1 through a pin shaft, the upper end of the rocker 3 is simultaneously rotatably connected with the rear end of the connecting rod 4 and the front end of the bucket oil cylinder 2, and the rear end of the bucket oil cylinder is rotatably connected with an oil cylinder hinged seat arranged on a top wall plate of the bucket rod.

The conventional connection structure of an auxiliary arm and a bucket rod of a vibratory pile driver refers to a connection structure of a bucket and a bucket rod of an excavator. The bucket of the excavator moves by driving the connecting rod and the rocker mechanism to move through the extension and retraction of the bucket cylinder, and finally the bucket is recovered and opened, so that the working range is wide. When the operation is realized, if the manipulator is not operated properly, the interference and collision between the auxiliary arm and the vibration pile driving hammer are easily caused, and safety accidents are easily caused.

In addition, the vibration pile driving hammer performs pile driving and pile pulling operations through the mutual cooperation of the vibration motor, the rotary motor, the clamping nozzle oil cylinder and hydraulic oil cylinders (a movable arm oil cylinder, a bucket rod oil cylinder and a bucket oil cylinder) on the working device. During piling operation, the pile can be pressed into the ground through appropriate pressurization of the oil cylinder and the gravity action of the vibrating pile driving hammer. However, during pile pulling operation, the pile can be successfully pulled up from the ground only after overcoming the gravity of the vibrating pile driving hammer and the pile body and the friction force generated by the pile, so that higher requirements are put forward on the hydraulic oil cylinder. In actual work, the pile pulling process of the existing vibration pile driver is realized by feeding oil into a small cavity of a bucket oil cylinder and retracting the bucket oil cylinder, but the action area of a rod cavity of the bucket oil cylinder is small, and the pile is difficult to pull up smoothly by the action force generated by the bucket oil cylinder under the condition of the same working pressure of a hydraulic system.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the present vibrating pile driver pulls out the weaker problem of stake ability under same hydraulic system operating pressure condition, and provides a vibrating pile driver to promote under same hydraulic system operating pressure condition and pull out the stake ability.

The utility model discloses a realize that the technical scheme of its purpose is like: constructing a vibrating pile driver, which comprises a host machine and a working device arranged on the host machine, wherein the working device comprises a bucket rod, an auxiliary arm arranged at the front end of the bucket rod, a vibrating pile driving hammer rotatably connected to the front end of the auxiliary arm, and a bucket oil cylinder arranged on the bucket rod; the bucket rod is characterized in that two hinge holes are formed in the rear end of the auxiliary arm, an oil cylinder hinge seat is arranged on the bottom surface of the bucket rod, the rear end of the bucket oil cylinder is hinged to the oil cylinder hinge seat through a pin shaft, the front end of the bucket oil cylinder is connected with the lower hinge hole in the rear end of the auxiliary arm through a pin shaft, and the front end of the bucket rod is connected with the hinge hole in the upper portion of the rear end of the auxiliary arm through a pin shaft. The utility model discloses in, when assisting the ascending lifting of arm front end and carrying out the pile pulling operation, the rodless chamber oil feed of scraper bowl hydro-cylinder, the piston of scraper bowl hydro-cylinder stretches out, assists the arm and rotates around the hinge hole on rear end upper portion. When a piston rod of the bucket cylinder extends out, oil is fed into a rodless cavity of the bucket cylinder, and under the condition of the same working pressure of a hydraulic system, larger acting force can be obtained, so that the pile pulling capacity of the vibrating pile driver is improved. In addition, the bucket oil cylinder is directly connected with the auxiliary arm below the bucket rod, so that the rotation range of the auxiliary arm can be greatly reduced, and safety accidents caused by misoperation can be effectively avoided.

In the vibrating pile driver, the cylinder end of the bucket oil cylinder is hinged with the oil cylinder hinged seat through a pin shaft, and the piston rod of the bucket oil cylinder is connected with the lower hinged hole at the rear end of the auxiliary arm.

In the vibrating pile driver, the auxiliary arm is L-shaped, the front part of the auxiliary arm is bent downwards, and the vibrating pile driving hammer is rotatably connected to the end part of the downward bent part through the pin shaft.

Compared with the prior art, the utility model discloses under same hydraulic system operating pressure condition, can make the pile pulling ability of vibration pile driver obtain promoting, simultaneously safer.

Drawings

Fig. 1 is a schematic view of the structure of the front part of a working device of a prior art vibration pile driver.

Fig. 2 is a schematic structural view of the front part of the working device of the vibration pile driver.

Part names and serial numbers in the figure:

the hydraulic excavator comprises a bucket rod 1, an oil cylinder hinged seat 11, a bucket oil cylinder 2, a rocker 3, a connecting rod 4, an auxiliary arm 5 and a vibrating pile driving hammer 6.

Detailed Description

The following description of the embodiments refers to the accompanying drawings.

As shown in fig. 2, the vibration pile driver in the present embodiment includes a main machine (not shown) which is typically a main machine of a crawler excavator, and a working device which includes a boom (not shown) having a rear end rotatably connected to the main machine and a front end rotatably connected to the arm 1, and an auxiliary arm 5 having a rear end rotatably connected to the front end of the arm and a front end rotatably connected to the vibration pile driving hammer; oil cylinders are arranged between the auxiliary arm 5 and the bucket rod 1, between the bucket rod and the movable arm and between the movable arm and the host.

In the connection relation between the auxiliary arm 5 and the bucket rod 1, the rear end of the auxiliary arm 5 is provided with two hinge holes, namely an upper hinge hole 51 and a lower hinge hole 52, the bottom surface of the bucket rod 1 is provided with a cylinder hinge seat 11, the rear end of a cylinder barrel of the bucket cylinder 2 is hinged with the cylinder hinge seat 11 through a pin shaft, the front end of a piston rod of the bucket cylinder 2 is connected with the lower hinge hole 52 at the rear end of the auxiliary arm 5 through a pin shaft, and the front end of the bucket rod 1 is connected with the upper hinge hole 51 at the rear end of the auxiliary arm 5 through a pin shaft.

The auxiliary arm 5 is L-shaped, the front part of which is bent downward, and the vibrating pile hammer 6 is rotatably connected to the end of the downward bent part by a pin.

In this embodiment, when the front end of the auxiliary arm 5 is lifted upwards for pile pulling, the rodless cavity of the bucket cylinder 2 takes oil, the piston of the bucket cylinder 2 extends, and the auxiliary arm 5 rotates around the rear end upper hinge hole 51. Because the effective area of the hydraulic oil in the rodless cavity on the piston is larger than the effective area of the hydraulic oil in the rod cavity on the piston, under the same working pressure of a hydraulic system, the thrust generated when the rodless cavity of the bucket oil cylinder is filled with oil and the piston rod extends out is larger than the tension generated when the rod cavity is filled with oil and the piston rod retracts, therefore, in the embodiment, the vibration pile driver is used for pulling piles, compared with the traditional vibration pile driver, the auxiliary arm can provide larger lifting force, and the pile pulling operation is more favorably carried out. In addition, the bucket oil cylinder is directly connected with the auxiliary arm below the bucket rod, so that the rotation range of the auxiliary arm can be greatly reduced, and safety accidents caused by misoperation can be effectively avoided.

Claims

1. A vibrating pile driver comprises a host machine and a working device arranged on the host machine, wherein the working device comprises a bucket rod, an auxiliary arm arranged at the front end of the bucket rod, a vibrating pile driving hammer rotationally connected to the front end of the auxiliary arm, and a bucket oil cylinder arranged on the bucket rod;

the bucket rod is characterized in that two hinge holes are formed in the rear end of the auxiliary arm, an oil cylinder hinge seat is arranged on the bottom surface of the bucket rod, the rear end of the bucket oil cylinder is hinged to the oil cylinder hinge seat through a pin shaft, the front end of the bucket oil cylinder is connected with the lower hinge hole in the rear end of the auxiliary arm through a pin shaft, and the front end of the bucket rod is connected with the hinge hole in the upper portion of the rear end of the auxiliary arm through a pin shaft.

2. The vibratory pile driver as recited in claim 1, wherein the end of the barrel of the bucket cylinder is hinged to the cylinder hinge base by a pin, and the piston rod of the bucket cylinder is connected to the lower hinge hole at the rear end of the auxiliary arm.

3. A vibratory pile driver as claimed in claim 1 or 2, wherein said secondary arms are L-shaped with a forward portion bent downwardly, and said vibratory pile driving hammer is pivotally connected to the end of the bent-down portion by a pin.