CN2835344Y

CN2835344Y - Bottom-enlarging device capable of being used together with immersed tube

Info

Publication number: CN2835344Y
Application number: CN 200520093875
Authority: CN
Inventors: 王国奋
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-28
Filing date: 2005-11-28
Publication date: 2006-11-08
Anticipated expiration: 2015-11-28

Abstract

The utility model discloses a bottom expanding pile device for foundation construction, particularly a bottom expanding device capable of matching with an immersed tube. The bottom expanding device capable of matching with an immersed tube is composed of a frame and a power source which are positioned with the immersed tube, a drive mechanism which is connected with the power source, and a cutting knife frame which is driven by the drive mechanism to open and fold, wherein the drive mechanism comprises a power rod of which one end is connected with the power source, and the other end is connected with an upper shaft sleeve, a gear which is fixed on the lower part of the upper shaft sleeve is engaged with a small gear which is arranged on the upper end of a gear shaft, and a small gear on the lower end of the shaft is engaged with a gear on a centre shaft; the lower end of the centre shaft is orderly penetrated through the frame, a lower fixing disc, and a transverse rod of the knife frame to connect the upper end of a vertical cutting knife, the cross section of the vertical cutting knife presents a shape with a round upper part and a square lower part or an edge-cutting round, the transverse rod of the knife frame is sheathed with the centre shaft and the lower shaft sleeve is fixedly connected with the transverse rod of the knife frame. The utility model has the advantages of good stabilization, easy control, low cost and convenient implementation.

Description

The bottom-expanding equipment that can be used with immersed tube

Technical field

The utility model relates to a kind of foundation construction expanded bore pile equipment, particularly a kind of bottom-expanding equipment that can be used with immersed tube.

Background technology

Fast development along with builing industry, high-rise building is more and more, high-rise building requires also increasing to its basic supporting capacity thereupon, often adopt expanded bore pile with the distribution density that reduces foundation pile with reduce cost in order to increase single pile bearing capacity, expand end shoveling equipment arises at the historic moment thereupon, yet shoveling equipment all is not suitable for the shoveling needs that immersed tube prefabricated steel concrete expands the end at the bottom of the expansion in the past, because transmission mechanism instability, make its poor accuracy, effect and control ability are low, the hack weak effect, and equipment volume is big, the cost height is subjected to certain limitation so it is applied.

The utility model content

The utility model provides a kind of stable at the problem that above-mentioned prior art exists, good control, compact conformation, the construction foundation working bottom-expanding equipment that cost is low.

The utility model realizes that the purpose technical scheme is: a kind of bottom-expanding equipment that can be used with immersed tube, it by can with the frame of immersed tube location, power source, the transmission mechanism that is connected with power source, driving the cutter saddle that can open with drawing in by transmission mechanism forms, transmission mechanism comprises that an end links to each other with power source, the power rail that the other end links to each other with Upper shaft sleeve, the gear that is installed in the Upper shaft sleeve bottom is meshed with the pinion of being located at the gear shaft upper end, the pinion of this lower end is meshed with gear on the axis, the lower end of axis is passed frame successively, lower fixed disk, the knife rest cross bar links to each other with the upper end of vertical cut cutter, its cross section is circular upper part and square lower part or scarce limit circle, the knife rest cross bar is set on the axis, and Lower shaft sleeve is fixedlyed connected with the knife rest cross bar.

Described axis epimere is a screw rod, and the projection by the both sides, upper end puts in the corresponding slideway in the Upper shaft sleeve.

Described axis is provided with defining flange in knife rest cross bar bottom.

The lower end of described Upper shaft sleeve is provided with rolling bearing, and the projection that its interior axially both sides are provided with slideway and both sides, axis upper end is complementary.

The utility model compared with prior art, axis epimere screw rod hypomere is squarely to cooperate with last Lower shaft sleeve is organic respectively, axis descends and vertically cuts the earth, and cut the earth in the expansion end of rising, a series of technical measures such as hack of reversing, and it is good through the evidence positional accuracy, guarantee pile body and expanded bore pile base good concentricity, obviously improve single pile bearing capacity, expanded bore pile seat shape meets standard-required, easy control easy and simple to handle reduces the Foundation Design cost; Transmission mechanism can make the shoveling of the expansion end and pulverize the soil body and finish simultaneously simultaneously, raises the efficiency and the Foundation Design quality.The utility model bottom-expanding equipment compact conformation, automatic and mechanical degree height, expansion substrate amount is good, the precision height, work progress is safe and reliable, and is simple to operation, and the controlled ability of equipment is strong, soil body good crushing effect.

Below in conjunction with the drawings and specific embodiments the utility model is described in further details.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present utility model.

Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.

Fig. 3 is the B-B sectional structure schematic diagram of Fig. 1.

Fig. 4 is the partial enlarged drawing of axis, last lower shaft, gear drive part.

Among the figure 2, the iron pin; 3, alignment pin; 4, overcoat; 5, draw-in groove; 6, column; 7, gear shaft; 8, gear; 9, pinion; 11, metal closures; 12, gear; 13, pinion; 14, Upper shaft sleeve; 15, spring; 17, power rail; 18, horizontal location pin; 19, go up fixed disk; 21, Lower shaft sleeve; 22, support link; 23, axis; 24, vertical cut cutter; 25, expand the undercutting sharpener; 27, spring; 29, horizontal pin; 30, spring; 31, screw; 32, spacer pin; 33, lower fixed disk; 34, spring; 41,42, strengthen fixed head; 50, knife rest cross bar; 52, defining flange.

The specific embodiment

Embodiment of the present utility model is described in detail in conjunction with the accompanying drawings, but protection domain of the present utility model is not limit by embodiment.

As shown in Figure 1 be main TV structure schematic diagram of the present utility model.The last fixed disk 19 of frame and lower fixed disk 33, between the two by it being fused along circumferentially uniform four or two or eight or more root posts 6, top, the middle part also is provided with two reinforcement fixed

heads

41,42, be the upper end that the pyramidal metal closures 11 of round platform is set in Upper shaft sleeve 14, and place the center of fixed disk 19, bottom is provided with the spring 15 of support, the power rail 17 that the upper end of Upper shaft sleeve 14 links to each other with power source links to each other, the lower end of Upper shaft sleeve 14 places on the lower plywood of strengthening fixed head 41, its outer rolling bearing that is provided with, gear 12 is installed in the bottom of Upper shaft sleeve, the upper end of axis 23 puts in the Upper shaft sleeve 14 and the projection on both sides, upper end is entered in the corresponding slideway of Upper shaft sleeve, the upper semisection of axis 23 is a screw rod, the lower semisection cross section is a square or scarce limit circle, the lower end of axis 23 is passed the lower fixed disk 33 of frame in turn, knife rest cross bar 50 links to each other with vertical cut cutter 24 upper ends, knife rest cross bar 50 and axis 23 suits, the lower fixed disk 33 that frame is passed in the lower end of Lower shaft sleeve 21 is fixedlyed connected with knife rest cross bar 50, overcoat 4 is sleeved on Lower shaft sleeve 21 outsides, the two ends of knife rest cross bar 50 are hinged with an end that expands undercutting sharpener 25, one end of support link 22 is hinged with the middle part of expanding undercutting sharpener 25, and the both sides, top of the other end and vertical cut cutter 24 are hinged; The described gear 12 that is installed in Upper shaft sleeve 14 bottoms is meshed with the pinion 9 of gear shaft 7 upper ends, and the pinion 13 of coaxial lower end is meshed with internal thread gear 8 on the axis 23; The described fixed disk 19 interior edges of going up circumferentially are laid with four horizontal location pins 18, and the outer end is exposed the side face tail end and is provided with spring 34; The both sides of described lower fixed disk 33 are arranged with the alignment pin 3 that can be complementary with immersed tube bottom locating slot, and the inner of its pin is provided with spring 27, on spacer pin 32 is arranged, the outer end is provided with the iron pin 2 on band inclined-plane, top.And radially being provided with the horizontal pin 29 that can put in the draw-in groove 5 wide on Lower shaft sleeve 21 perisporiums being vertical central part with it, afterbody has spring 30 with screw 31 location, also is provided with the handle that it is pulled out on the horizontal pin 29.Described axis 23 is provided with defining flange 52 at the position of knife rest cross bar 50 following certain distances.The power source of the utility model equipment is the motor that can change anyway.

Claims

1, a kind of bottom-expanding equipment that can be used with immersed tube, it is characterized in that it by can with the frame of immersed tube location, power source, the transmission mechanism that is connected with power source, driving the cutter saddle that can open with drawing in by transmission mechanism forms, it is characterized in that transmission mechanism comprises that an end links to each other with power source, the power rail that the other end links to each other with Upper shaft sleeve (14), the gear (12) that is installed in Upper shaft sleeve (14) bottom is meshed with the pinion (9) of being located at gear shaft (7) upper end, the pinion of this lower end (13) is meshed with gear (8) on the axis (23), the lower end of axis (23) is passed frame successively, lower fixed disk (33), knife rest cross bar (50) links to each other with the upper end of vertical cut cutter (24), its cross section is circular upper part and square lower part or scarce limit circle, knife rest cross bar (50) is set on the axis (23), and Lower shaft sleeve (21) is fixedlyed connected with knife rest cross bar (50).

2, the bottom-expanding equipment that can be used with immersed tube according to claim 1 is characterized in that described axis (23) epimere is a screw rod, and the projection by the both sides, upper end puts in the corresponding slideway in the Upper shaft sleeve (14).

3, the bottom-expanding equipment that can be used with immersed tube according to claim 1 and 2 is characterized in that described axis (23) is provided with defining flange (52) in knife rest cross bar (50) bottom.

4, the bottom-expanding equipment that can be used with immersed tube according to claim 1 is characterized in that the lower end of described Upper shaft sleeve (14) is provided with rolling bearing, in it axially both sides be provided with that the projection on both sides is complementary on slideway and the axis (23).