CN210002384U

CN210002384U - dynamic compaction machine unhooking auxiliary device

Info

Publication number: CN210002384U
Application number: CN201920122225.2U
Authority: CN
Inventors: 黄灿; 刘诗虎; 黄节华; 刘奖
Original assignee: CCCC Second Harbor Engineering Co
Current assignee: CCCC Second Harbor Engineering Co
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-01-31
Anticipated expiration: 2029-01-24

Abstract

dynamic compaction machine unhook auxiliary device, including triangular supports frame, triangular supports frame include horizon bar and down tube, the both ends of horizon bar and down tube all be equipped with the connector, set up the bolt hole on the connector, it is fixed through bolted connection between the connector of two horizon bar ends and the connector of down tube ends, be provided with the pulley on the link of horizon bar and down tube, support through the angle steel between two horizon bars and down tubes and form triangular taper structure, the end that the pulley was kept away from to horizon bar and down tube is fixed on the dynamic compaction machine main arm through the staple bolt.

Description

dynamic compaction machine unhooking auxiliary device

Technical Field

The utility model relates to an original soil tamping construction field, especially kind of dynamic compactor unhook auxiliary device.

Background

The dynamic compaction method is a common soft foundation treatment construction method, and is specifically characterized in that a large crawler-type dynamic compactor is used for freely dropping 10-40 tons of heavy hammers from a height of 6-30 m meters to strongly compact soil, so that the bearing capacity and the compression modulus of a foundation are rapidly improved, a uniform and compact foundation is formed, and the pore distribution of foundation soil is changed within a fixed depth of foundation.

The dynamic compaction method construction generally comprises two steps of point compaction and full compaction, the point compaction is generally completed by high compaction energy, the arrangement of compaction points mostly adopts an equilateral triangle, an isosceles triangle or a square, the distance between points is , 2.5-3.5 times of the diameter of a compaction hammer, the compaction points of the second point compaction are positioned between the compaction points , the full compaction is mainly used for compacting the surface layer to loosen the soil, so the compaction energy is lower, the compaction points are continuous, front and back hammer prints are overlapped 1/4-1/3, and the transformation of the compaction energy between the point compaction and the full compaction is generally realized by two methods of reducing the weight of the compaction hammer and reducing the lifting height of the compaction hammer.

The dynamic compaction machine selects the crawler crane with automatic unhooking device like this, the unhooking device has the horizontal operating lever to control the opening and closing of the internal locking mechanism of the unhooking device, during the actual operation, soft steel wire ropes are used to pass through the pulley block, end is fixed on the dynamic compaction machine main machine, in addition, end is fixed on the horizontal operating lever of the unhooking device, along with the rising of the main steel wire rope of the dynamic compaction machine, the horizontal operating lever is pulled after the soft steel wire rope is tightened, the internal locking mechanism is loosened, the rammer falls freely.

No special person is required to be responsible for hooking, so that the construction efficiency is high, and the safety is controllable;

the disadvantages are that:

(1) when the type rammer is used, the full ramming distance is small, so that the included angle between the soft steel wire rope and the main hook is too large, the steel wire rope cannot provide enough vertical pulling force to pull the horizontal operating rod, and unhooking is not smooth;

(2) when the steel plate combined hammer is assembled, is similar to the method that the weight of the hammer is reduced by dismantling part of the steel plates, so that the falling distance of the hammer is increased, but the hammer is disassembled back and forth, and the stroke of the hammer is increased, so that the loss of construction time is caused.

Disclosure of Invention

The utility model aims to solve the technical problem that an kind of dynamic compaction machine unhook auxiliary device is provided, can realize in the dynamic compaction work progress, the quick switching of point rammer and full rammer process effectively promotes the efficiency of ramming the operation.

In order to solve the technical problem, the utility model adopts the technical scheme that strong rammer unhook auxiliary device, including the triangular supports frame, the triangular supports frame include horizon bar and down tube, the both ends of horizon bar and down tube all be equipped with the connector, set up the bolt hole on the connector, pass through bolted connection between the connector of two horizon bar ends and the connector of down tube ends and fix, be provided with the pulley on the connection of horizon bar and down tube, support through angle steel between two horizon bars and down tubes and form triangular pyramid structure, the end that the pulley was kept away from to the horizon bar and down tube is fixed on the main arm of strong rammer through the staple bolt.

In a preferable scheme, the anchor ear comprises two main plate blocks with semicircular grooves, wherein main plate blocks are provided with two parallel metal blocking pieces on the convex arc surface, the straight plate sections at two sides of the main plate block are provided with third bolt holes, and the metal blocking pieces are provided with second bolt holes.

In a preferable scheme, a second angle steel is welded between the horizontal rod and the pulley.

In the preferable scheme, the two metal blocking pieces on the hoop are fixedly connected with the horizontal rod and the inclined rod through bolts, and the hoop is fixed on a main arm of the dynamic compaction machine through the two main plate blocks.

The kinds of dynamic compaction machine unhook auxiliary device that the invention provides, through adopting the above-mentioned structure, have the following beneficial effects:

(1) the device is simple in structure and convenient to manufacture, is convenient to disassemble, assemble and connect with the dynamic compactor, can be recycled for multiple times, and can bring obvious construction efficiency improvement in large-area dynamic compaction construction of multiple dynamic compactors;

(2) the device is designed aiming at the body type rammer, so that the configuration of the rammer with small mass can be saved, the combined rammer does not need to be disassembled and assembled, the construction progress can be accelerated by using small falling distance, the construction period saving effect is remarkable, and the economic benefit is obvious;

(3) the device has the applicability that in the actual use process, the position of the second turning point of the unhooking device can be adjusted by changing the length of the horizontal rod, so that the problem of unsmooth unhooking caused by small drop distance of the rammer under most conditions can be effectively solved;

(4) the device can not bring any negative effect to the dynamic compactor in the use, also need not to carry out any repacking to the dynamic compactor, safe and reliable.

Drawings

The present invention will be further described in with reference to the following drawings and examples:

fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the vertical structure of the present invention.

Fig. 3 is the schematic view of the hoop structure of the present invention.

Fig. 4-5 are schematic diagrams of two alternatives when the utility model discloses get into the general rammer process in the construction.

Fig. 6 is a schematic diagram of the present invention in actual construction.

In the figure, a horizontal rod 1, an inclined rod 2, a connector 3, th angle steel 4, second angle steel 4', a pulley 5, a th bolt hole 6, an anchor ear 7, a main plate block 8, a metal baffle 9, a second bolt hole 10, a third bolt hole 11, a dynamic compactor 12, a detacher 13, an upper part pulley 14 of the detacher and a pulling rope 15 of the detacher.

Detailed Description

Example 1:

as in fig. 1-3, kind of dynamic compaction machine unhook auxiliary device, including triangular supports frame, triangular supports frame include horizon bar 1 and down tube 2, the both ends of horizon bar 1 and down tube 2 all be equipped with connector 3, set up bolt hole 6 on the connector 3, pass through bolted connection between the connector 3 of connector 3 and down tube 2 end of two horizon bar 1 ends and fix, be provided with pulley 5 on the link end of horizon bar 1 and down tube 2, support through angle steel 4 between two horizon bar 1 and down tube 2 and form triangular pyramidal structure, the end that the pulley 5 was kept away from to horizon bar 1 and down tube 2 is fixed on the dynamic compaction machine main arm through staple bolt 7.

In a preferable scheme, the anchor ear 7 comprises two main plate blocks 8 with semicircular grooves, wherein main plate blocks 8 are provided with two parallel metal blocking pieces 9 on the convex arc surface, the straight plate sections on both sides of the main plate block 8 are provided with third bolt holes 11, and the metal blocking pieces 9 are provided with second bolt holes 10.

In a preferable scheme, a second angle steel 4' is welded between the horizontal rod 1 and the pulley 5.

In the preferable scheme, the two metal blocking pieces 9 on the anchor ear 7 are fixedly connected with the horizontal rod 1 and the diagonal rod 2 through bolts, and the anchor ear 7 is fixed on a main arm of the dynamic compaction machine through two main plate blocks 8.

Example 2:

a. ramming energy conversion

The construction of dynamic compaction on site selects YTQH450B type dynamic compactor, the rammer is the combination hammer, and install the automatic unhooking device additional.

The ramming energy requirement of the on-site point ramming construction is more than or equal to 3000 kN.m, the construction scheme is that the weight of a rammer is 19.5t, and the drop distance is 15.5 m; after entering the general tamping procedure, the tamping energy is adjusted to be more than or equal to 1000 kN.m, and two schemes are selected at the moment:

(1) continuing to use the 19.5t ram as in FIG. 4, the drop distance was adjusted to 5.2 m;

(2) as shown in FIG. 5, two rammer steel plates (3.5 t/plate) are removed, the weight of the rammer is reduced to 12.5t, and the drop distance is adjusted to 8.2 m;

b. has problems in that

Aiming at the scheme (1), the included angle between the pulling rope of the unhooking device and the rammer is 51 degrees, the horizontal force is large, and the unhooking is difficult;

aiming at the scheme (2), the included angle between the pulling rope of the unhooking device and the rammer is 41 degrees, unhooking is smooth, however, the time for dismantling the steel plate of the rammer is about days, the rammer energy needs to be adjusted for many times on site, the accumulated time is long, and in the actual construction process, because the lifting speed of the rammer is slow, under the condition that the rammer is lifted for 3m more, 15 ten thousand of thousands of rammers are adoptedm²The accumulated time of the general tamping construction is longer.

In order to accelerate the construction progress, the scheme (1) is selected, and at the moment, the included angle between the pulling rope of the detacher and the rammer is adjusted to 41 degrees from 51 degrees by adopting a method of increasing a triangular support (as shown in figure 6), so that the smooth construction is ensured.

Aiming at the scheme, the manufacturing of the triangular support frame is carried out, taking fig. 6 as an example, and the method specifically comprises the following steps

1) Simulating the horizontal length of the triangular support frame according to a design drawing, wherein the horizontal length is not less than 2.3 m;

2) processing and cutting three steel pipes, flattening and grinding two ends of each steel pipe to obtain two horizontal rods 1 and inclined rods (2);

3) selecting a steel plate with the thickness of 10mm-12mm as a connector 3, welding the connector 3 at the end parts of two horizontal rods 1 and inclined rods 2, and forming a bolt hole 6 in the connector 3 in a gas cutting mode;

4) m18 bolts penetrate through the connectors 3 at the ends of the two

horizontal rods

1, 1 and the connectors 3 at the ends of of the inclined rods 2, so that the two horizontal rods 1 and the ends of

inclined rods

2, 2 , are fixedly connected;

5) lifting the inclined rods 2, enabling the inclined rods 2 to form an included angle of 30 degrees with the horizontal direction, spot-welding two groups of ∠ 50 multiplied by 5 angle steels 4 between the two horizontal rods 1 and inclined rods 2, wherein each group of angle steels 4 comprises three angle steels, forming a triangular support structure with groups of angle steels 4, and after welding is completed, forming a triangular conical structure by the two horizontal rods 1 and inclined rods 2;

6) the connecting ends of the two horizontal rods 1 and the inclined rods 2 are connected with a pulley 5 through an M18 bolt, and the horizontal rods 1 and the pulley 5 are connected by two ∠ 50 multiplied by 5 second angle steels 4', so that the pulley is fixed, and the pulley is prevented from freely rotating in the conversion process of two states of stress and relaxation of the steel wire rope, and the steel wire rope is prevented from falling off or being clamped;

7) selecting two steel plates with the same size, bending the middle parts of the two steel plates into a semicircular groove, and then gas-cutting straight plate sections at two sides of the semicircular groove to form third bolt holes 11;

8) welding two parallel metal baffle plates 9 on the convex cambered surface of steel plates, controlling the distance between the two parallel metal baffle plates (9) to be 12-15 mm, and gas-cutting the metal baffle plates 9 to form second bolt holes 10;

9) obtaining a single hoop 7;

10) the ends of the horizontal rod 1 and the diagonal rod 2 far away from the pulley 5 are provided with hoops 7, and the metal baffle plate 9 is fixedly connected with the connectors 3 at the ends of the horizontal rod 1 and the diagonal rod 2 through M18 bolts;

11) the triangular support frame is fixed on the dynamic compaction machine 12 by connecting two main plate blocks 8 in the hoop 7 with the main arm of the dynamic compaction machine 12;

12) the detacher cord 15 is made to pass through the pulley 5, then the upper pulley 14 of the detacher and finally connected with the detacher 13;

the final construction view is shown in fig. 6, with the detacher cord 15 angled at 41 ° to the ram.

Under the condition of adopting the structure and the method, even the included angle between the pulling rope 15 of the unhooking device and the rammer is 41 degrees, the unhooking is ensured to be smooth, a large amount of time is not needed to be consumed to remove the heavier rammer steel plate, and the construction efficiency is effectively improved.

Claims

The utility model provides a kind of dynamic compaction machine unhook auxiliary device, characterized by includes the triangular supports frame, the triangular supports frame include horizon bar (1) and down tube (2), the both ends of horizon bar (1) and down tube (2) all be equipped with connector (3), set up bolt hole (6) on connector (3), connector (3) of two horizon bar (1) ends and connector (3) of down tube (2) ends are fixed through bolted connection, be provided with pulley (5) on the link of horizon bar (1) and down tube (2), support through angle steel (4) between two horizon bar (1) and down tube (2) and form triangular pyramid structure, end that pulley (5) were kept away from to horizon bar (1) and down tube (2) is fixed on the dynamic compaction machine main arm through staple bolt (7).
2. The auxiliary unhooking device for the dynamic compaction machine according to claim 1, wherein the hoop (7) comprises two main plate blocks (8) with semi-circular grooves, wherein two parallel metal baffles (9) are arranged on the convex arc surface of main plate blocks (8), third bolt holes (11) are arranged on the straight plate sections at both sides of the main plate blocks (8), and second bolt holes (10) are arranged on the metal baffles (9).
3. The kind of dynamic compaction machine unhooking auxiliary device according to claim 1, characterized in that a second angle steel (4') is welded between the horizontal bar (1) and the pulley (5).
4. The auxiliary unhooking device for the dynamic compaction machine according to claim 2, wherein two metal baffles (9) on the hoop (7) are fixed with the horizontal rod (1) and the diagonal rod (2) through bolts, and the hoop (7) is fixed on a main arm of the dynamic compaction machine through two main plate blocks (8).