CN110438972B

CN110438972B - Rammer of dynamic compactor

Info

Publication number: CN110438972B
Application number: CN201910670627.0A
Authority: CN
Inventors: 陈曙霞; 丁瑞君; 孙俊
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-12-04
Anticipated expiration: 2039-07-24
Also published as: CN110438972A

Abstract

The invention belongs to the field of road engineering construction, and particularly relates to a rammer of a dynamic compactor, which comprises a joint, wherein an outer sleeve is fixed at the lower end of the joint, an inner sleeve is arranged inside the outer sleeve in a sliding manner, an upper limit is arranged at the upper part of the inner sleeve, a lower limit is arranged on the side wall of the middle part of the outer sleeve, the inner sleeve is fixedly connected with a support, the support is connected with a fixed rod in a sliding manner, a hole cleaner is fixed at the other end of the support, a rammer disc is arranged at the bottom of the outer sleeve, an air hole is formed in the rammer disc, the hole cleaner penetrates through the air hole and. The rammer of the dynamic compaction machine provided by the invention can improve the compaction strength, can automatically remove soil in a gas hole, is used for foundation treatment of collapsible loess geology, improves the bearing capacity of the foundation, reduces settlement, and is simple in structure and convenient to operate.

Description

Rammer of dynamic compactor

Technical Field

The invention belongs to the field of road engineering construction, and particularly relates to a rammer of a dynamic compactor.

Background

The foundation treatment method is a method for reinforcing or improving the foundation as necessary according to the requirement of the superstructure on the foundation, improving the bearing capacity of the foundation soil, ensuring the stability of the foundation, reducing the settlement or uneven settlement of the superstructure, eliminating the collapsibility of collapsible loess and improving the liquefaction resistance. The current common methods for foundation treatment mainly comprise a perforated inner deep layer dynamic compaction method, a pad layer replacement method, a dynamic compaction method, a sand-stone pile method, a vibroflotation method, a cement-soil stirring method, a high-pressure injection grouting method, a prepressing method, a rammed cement-soil pile method, a cement fly ash gravel pile method, a lime-soil compaction pile method, a column hammer impact pile expanding method, a single-liquid silicification method, an alkali liquor method and the like. Wherein, the dynamic compaction method is a common method for treating collapsible loess foundation in Lanzhou region of China, so that a dynamic compactor is urgently needed.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention aims to provide a rammer of a dynamic compaction machine, and in order to achieve the aim, the technical scheme adopted by the invention is as follows:

the utility model provides a rammer of dynamic compactor, includes the joint, it is fixed with the outer tube to connect the lower extreme, the inside slip of outer tube is equipped with interior sleeve pipe, interior sleeve pipe upper portion is equipped with spacing, it is spacing down to be equipped with on the lateral wall of outer tube middle part, interior sleeve pipe fixedly connected with support, support and dead lever sliding connection, the support other end is fixed with the hole cleaning ware, the outer tube bottom is equipped with the rammer dish, the hole has been opened to the rammer dish, the hole cleaning ware passes hole sliding connection, the fixed cone tooth that is equipped with of rammer dish lower extreme.

Preferably, the ram disk is a cylinder.

Preferably, the number of the conical teeth is five, four of the conical teeth are arranged in a square shape, the other conical teeth are arranged at the center of the square shape, and the number of the air holes is four and is respectively arranged at the center of the four sides of the square shape formed by the conical teeth.

The rammer of the dynamic compaction machine provided by the invention can improve the compaction strength, can automatically remove soil in a gas hole, is used for foundation treatment of collapsible loess geology, improves the bearing capacity of the foundation, reduces settlement, and is simple in structure and convenient to operate.

Drawings

FIG. 1 is a schematic front view of a rammer of a dynamic compactor;

FIG. 2 is a schematic top view of a ram of a dynamic compactor;

in the figure, 1, a connector 2, an outer sleeve 3, an inner sleeve 4, an upper limit 5, a lower limit 6, a bracket 7, a fixing rod 8, a hole cleaner 9, a spring 10, an air hole 11, a rammer disc 12 and conical teeth

Detailed Description

To further describe the rammer of the dynamic compaction machine of the present invention, the following description is further provided with reference to the accompanying drawings.

In FIGS. 1-2: the utility model provides a rammer of dynamic compactor, includes and connects 1, it is fixed with outer tube 2 to connect 1 lower extreme, 2 inside slips of outer tube are equipped with interior sleeve pipe 3, interior sleeve pipe 3 upper portion is equipped with spacing 4, be equipped with down spacing 5 on the 2 middle part lateral walls of outer tube, interior sleeve pipe 3 fixedly connected with support 6, support 6 and dead lever 7 sliding connection, 6 other ends of support are fixed with hole cleaning machine 8, 2 bottoms of outer tube are equipped with rammer dish 11, rammer dish 11 division has gas pocket 10, hole cleaning machine 8 passes gas pocket 10 sliding connection, the fixed conical tooth 12 that is equipped with of rammer dish 11 lower extreme.

The rammer disk 11 is a cylinder.

The conical teeth 12 are five, four of the conical teeth are arranged in a square shape, the other conical teeth are arranged at the center of the square, and the four air holes 10 are respectively arranged at the middle points of the four sides of the square formed by the conical teeth 12.

The foregoing is illustrative and explanatory of the inventive concept, and nothing in this detail is known in the art, and it is intended that the invention be protected by the claims which follow and that the skilled person will make various modifications, additions or substitutions to the specific embodiments described, without departing from the inventive concept or exceeding the scope defined by the claims.

Claims

1. The rammer of the dynamic compactor is characterized by comprising a connector (1), wherein the lower end of the connector (1) is fixed with an outer sleeve (2), an inner sleeve (3) is arranged inside the outer sleeve (2) in a sliding manner, the upper part of the inner sleeve (3) is provided with an upper limit (4), a lower limit (5) is arranged on the side wall of the middle part of the outer sleeve (2), a support (6) is fixedly connected with the inner sleeve (3), the support (6) is connected with a fixing rod (7) in a sliding manner, a hole cleaner (8) is fixed at the other end of the support (6), a rammer disk (11) is arranged at the bottom of the outer sleeve (2), air holes (10) are formed in the rammer disk (11), the hole cleaner (8) penetrates through the air holes (10) in a sliding manner, conical teeth (12) are fixedly arranged at the lower end of the rammer disk (11), the conical teeth (12, the other one is arranged at the center of the square, and the number of the air holes (10) is four, and the four air holes are respectively arranged at the middle points of the four sides of the square formed by the conical teeth (12).

2. The rammer of a dynamic compactor according to claim 1, characterized in that the rammer disk (11) is a cylinder.