Multi-function closed cylinder type hydraulic piling hammer

A hydraulic piling hammer, multi-action technology, applied in the direction of sheet pile wall, building, foundation structure engineering, etc., can solve the problems affecting the efficiency of the hammer, and achieve the effect of increasing the striking energy and increasing the falling acceleration

Inactive Publication Date: 2010-06-23
高天宝 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the hammer cores of the existing hydraulic impact hammers at home and abroad are all in an open state, that is, the hammer core moves in the air. When performing underwater operations, it is necessary to add compressed air in the space where the hammer body moves. Otherwise, due to the resistance of the water, will affect the efficiency of the hammer

Method used

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  • Multi-function closed cylinder type hydraulic piling hammer
  • Multi-function closed cylinder type hydraulic piling hammer
  • Multi-function closed cylinder type hydraulic piling hammer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: (designed with gas chamber and vacuum chamber)

[0025] Refer to attached figure 1 with 2 , The hydraulic piling hammer system used in the present invention includes: a hydraulic power unit HPU, a hydraulic hose winch (optional), a hydraulic piling hammer PHD, and a control unit CSU.

[0026] The hydraulic piling hammer of the present invention consists of a high-pressure nitrogen chamber 1, a high-pressure accumulator 2, a single-acting oil cylinder 3, a low-pressure accumulator 4, a gas chamber 5, a sensor 6, an upper hammer core 7, and an upper hammer core sealing device 8. Vacuum chamber 9, lower hammer core 10, lower hammer core sealing device 11, replacement block 12, pile sleeve 13, hammer cylinder 14, oil inlet valve 15, oil distribution chamber 16, oil return valve 17. For working conditions with pile frame conditions, the pile sleeve can be omitted. Among them, the upper hammer body, the middle hammer body, the lower hammer body and the bottom...

Embodiment 2

[0031] Refer to attached image 3 , another form of structure of the present invention (increasing the gas storage tank): other structures are the same as embodiment 1, and the difference is that when the piling work needs a higher sum and a fixed acceleration, the gas storage tank 19 can be increased, and the rubber hose 18 will The gas storage tank 19 is connected with the low-pressure gas chamber 5 to form a gas chamber with a larger volume, and a certain pressure is pre-applied. When the upper hammer core 7 reciprocates, the space formed by the gas storage tank and the gas chamber is much larger than the hammer cylinder. Therefore, when the upper hammer core 7 reciprocates, the relative volume change is small, so the pressure in the low-pressure air chamber 5 will not change greatly due to the reciprocating movement of the upper hammer core 7, thereby ensuring the effect on the The active force on the upper hammer core 7 remains constant.

Embodiment 3

[0033] Refer to attached Figure 4 , a structural form of the multi-action airtight cylinder type hydraulic piling hammer hammer body structure of the present invention (designed with a vacuum chamber), in the structure of this embodiment, there is no gas chamber 5, and when the upper hammer core 7 moves downward, There are three forces with the same direction of motion, which are respectively the gravity of the upper hammer core 7, the thrust formed by the pressure of the gas on the top of the single-acting cylinder 3 pistons, and the pulling force formed by the vacuum suction of the upper hammer core 7 lower vacuum chamber 9.

[0034] For other structures of the present invention, refer to Embodiment 1. The difference is that the upper part of the upper hammer core is an open structure with more than one opening. The hammer cylinder 14 is provided with a lower hammer core 10, a lower hammer core sealing device 11 and Vacuum chamber 9, vacuum chamber 9 is made of hammer cylin...

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Abstract

The invention relates to a multi-function closed cylinder type hydraulic piling hammer. The technical scheme is as follows: the multi-function closed cylinder type hydraulic piling hammer is mainly formed by connecting an upper hammer body, a middle hammer body, a lower hammer body and a bottom hammer body, wherein, the three parts of the upper hammer body, the middle hammer body and the lower hammer body respectively form the respective closed structures; the lower hammer body mainly consists of a hammer cylinder barrel, an upper hammer core, an upper hammer core sealing device and a gas chamber, the hammer cylinder barrel and the upper hammer core form the gas chamber which is positioned at the upper part of the upper hammer core, when the upper hammer core moves downward, the pressure of the gas chamber provides the downward thrust for the hammer core, and the upper hammer core sealing device and an alternate hitting block which is connected with the bottom hammer body are arranged at the bottom of the hammer cylinder barrel. The multi-function closed cylinder type hydraulic piling hammer has the benefits that the action force in the same direction of the downward motion is increased at the upper part and the lower part of the upper hammer core, thereby improving the falling acceleration of the hammer core, improving the hitting energy under the premise of not increasing the weight of the hammer body; meanwhile, due to the adoption of the closed cylinder type structure, the working efficiency can not be affected during underwater operation.

Description

1. Technical field: [0001] The invention relates to a building foundation piling construction machine, in particular to a multi-function closed cylinder hydraulic piling hammer. 2. Background technology: [0002] At present, domestic and foreign equipment used for pile foundation construction impact piling is divided into diesel piling hammer and hydraulic piling hammer. Among them, diesel piling hammer has low efficiency, poor fuel economy, large environmental pollution, no explosion-proof performance, and cannot operate underwater. and other shortcomings. At present, hydraulic piling hammers are divided into two types. One is a single-acting hammer that relies on one force of gravity during the fall of the hammer core. The acceleration of gravity that can be achieved is not greater than one acceleration of gravity. In the process, gravity is used and a double-acting impact hammer is attached to the top of the lifting cylinder. The maximum falling acceleration of this type...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D7/10
Inventor 高天宝
Owner 高天宝
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