CN203729883U - Length-adjustable spiral drill bit structure - Google Patents
Length-adjustable spiral drill bit structure Download PDFInfo
- Publication number
- CN203729883U CN203729883U CN201320890707.5U CN201320890707U CN203729883U CN 203729883 U CN203729883 U CN 203729883U CN 201320890707 U CN201320890707 U CN 201320890707U CN 203729883 U CN203729883 U CN 203729883U
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- China
- Prior art keywords
- drill bit
- spiral drill
- guiding
- drilling rod
- conveyor screw
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- Withdrawn - After Issue
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Abstract
The utility model discloses a length-adjustable spiral drill bit structure. An intermediate spiral drill rod (3) is added on the original basis, the lower end of a base spiral drill rod (2) is provided with an internal hexagon structure, the side of the base spiral drill rod (2) is provided with two round holes, the upper end of the intermediate spiral drill rod (3) is provided with an external hexagon boss and two semicircular hole structures, the lower end of the intermediate spiral drill rod (3) is provided with an internal hexagon structure, the side of the intermediate spiral drill rod (3) is provided with two round holes, the lower end of the base spiral drill rod (2) is in matched connection with the upper end of the intermediate spiral drill rod (3) through an expansion pin (4) and a bolt (5), and the upper end of a guiding drill bit (7) is provided with an external hexagon boss and two semicircular hole structures and is in matched connection with the lower end of the intermediate spiral drill rod (3). On the conditions that the basic structure size of the drill bit is not changed, single-time drilling depth increase is guaranteed through connection of segmented and accumulated intermediate spiral drill rods, and the length and diameter requirements of different geological construction spiral drill bits can be met by modifying different guiding drill bits connected with the lower end of the drill bit and the structure of an arc-shaped pressing plate component.
Description
Technical field
The utility model relates to a kind of augers, and specifically a kind of length adjustable spiral drill bit structure, belongs to pore-forming implement and use augers technical field.
Background technology
At present, various ground foundation engineering construction equipments, in the pore-forming operation process perpendicular to ground concrete castinplace pile, according to the actual configuration difference of construction geology, often can use the main drill bit by central tube, spiral blade face and bucket tooth or cutting tooth structure; Be referred to as augers.No matter be long spiral or short augers or pyramidal structure, because parts machining process is simple, assembly lighter weight, easy to operate comparatively speaking, and efficiency of construction is high, is deeply subject to market users' welcome.
In the structure of above-mentioned drill bit, once the factory length of this drill bit is certain, the degree of depth that disposable maximum is crept in work progress just cannot increase, all multi-parameters such as the bucket tooth position that weld this drill bit lower end and Tooth structure, drilling diameter, equally also cannot require to change with practice of construction, for different earth formations, different castinplace pile diameter, lack necessary adaptation and strain capacity.In actual use procedure, in order to improve operating efficiency, user can only be for specific requirement and the geological conditions of each engineering, the corresponding special-purpose augers matching with it of buying, and a drill bit can not meet the length requirement that different geology is constructed; Get off for a long time, user's input is increasing, and stock's drill bit is more and more, and economic benefit is had a strong impact on.
Summary of the invention
The purpose of this utility model is to provide a kind of length adjustable spiral drill bit structure, and its length of the bit can free adjustment, can connect from different guiding drill bits simultaneously, can meet different geology, the requirement of different engineering construction to boring length.
To achieve these goals, the technical solution adopted in the utility model is: a kind of length adjustable spiral drill bit structure, comprise basic auger stem and guiding drill bit, basic auger stem is structural member, comprises central tube and helical blade, and square chest structure is contained on its top; In basic auger stem upper end, maximum gauge place outside helical blade, be provided with two with the adjustable arc pressuring plate parts of guiding drill bit axis of rotation angle, the setting height(from bottom) of two arc pressuring plate parts is poor is half of basic auger stem helical blade helical pitch; Also comprise intermediate conveyor screw drilling rod; Auger stem lower end, basis is that interior hexagonal structure, side are provided with two circular holes; Intermediate conveyor screw drilling rod is welded by central tube and helical blade, and upper end is with outer six side's boss and two semicircular pore structure, and lower end is that interior hexagonal structure, side are provided with two circular holes; Auger stem lower end, basis is connected with intermediate conveyor screw drilling rod upper end coupling by the pin that rises, bolt; Guiding drill bit upper end is outer six side's boss and two semicircular pore structure, and is connected with intermediate conveyor screw drilling rod lower end coupling.
Arc pressuring plate parts bag gripper shoe, cover and pressing plate, gripper shoe and pressing plate are welded as a whole, and cover is welded in the outer rim of basic auger stem blade, and pressing plate two end boss are placed in the circular hole of cover.
The quantity of intermediate conveyor screw drilling rod is more than 1.
Bolt Yu Zhangxiao bearing also arranges check washer.
Guiding drill bit is welded by the impeller of feeling relieved, bucket tooth or pick, support blade, slag-guiding plate and central tube; Bucket tooth or pick are welded on the lower surface of two symmetrical support blades, this support blade from lead angle starting point to 120 millimeters of places of helical blade bearing of trend, its pagewidth progressively reduces to become variable section structure, and slag-guiding plate is welded on the outer edge surface of support blade.
Intermediate conveyor screw drilling rod is installed locating surface with guiding drill bit upper end and is also provided with pin feature.
Compare with existing all-in-one-piece drill bit: by increasing and decreasing the quantity of intermediate conveyor screw drilling rod or increasing arc swing pressure plate structure and change structure and the welding position of cutting bucket tooth in guiding drill bit, can meet to greatest extent the drilling construction requirement of different geological conditions, different cast-in-place concrete pile diameter and different construction depth ground foundation engineerings, the kind and the quantity that greatly reduce construction drilling tool, reduce users' construction cost to greatest extent; Because drill bit operation length is effectively increased, its operating efficiency improves greatly, and guiding drill bit upper end arranges pin feature, guarantees in assembling process the correct of relative position between each parts, easy maintenance, has higher promotional value.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 be in Fig. 1 A-A to schematic cross-section;
Fig. 3 is basic auger stem and intermediate conveyor screw drilling rod docking site structural representation;
Fig. 4 is intermediate conveyor screw drilling rod and guiding drill bit docking site structural representation;
Fig. 5 is the structural representation of arc pressuring plate parts in Fig. 1;
Fig. 6 is drill guide header structure schematic diagram.
In figure: 1, arc pressuring plate parts, 1.1, gripper shoe, 1.2, cover, 1.3 pressing plates; 2, basic auger stem, 3, intermediate conveyor screw drilling rod, 4, the pin that rises, 5, bolt, 6, check washer, 7, guiding drill bit, 7.1, slag-guiding plate, 7.2, support blade, 7.3, bucket tooth, 7.4, centering impeller.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of length adjustable spiral drill bit structure, comprises basic auger stem 2 and guiding drill bit 7, basic auger stem 2 for structural member, comprise central tube and helical blade, square chest structure is contained on its top; As shown in Figure 6: in basic auger stem 2 upper ends, maximum gauge place outside helical blade, two and the adjustable arc pressuring plate parts 1 of guiding drill bit 7 axis of rotation angle are installed, the setting height(from bottom) of two arc pressuring plate parts 1 is poor is half of basic auger stem 2 helical blade helical pitches, arc pressuring plate parts 1 bag gripper shoe 1.1, cover 1.2 and pressing plate 1.3, gripper shoe 1.1 and pressing plate 1.3 are welded as a whole, cover 1.2 is welded in the outer rim of basic auger stem 2 blades, and 1.3 liang of end boss of pressing plate are placed in the circular hole of cover 1.2; Being connected and fixed between the circular hole that selection gripper shoe 1.1 is different and basic auger stem 2 blades, can adjust the size of this drilling rod bore diameter.
As shown in Figure 2: also comprise intermediate conveyor screw drilling rod 3; Auger stem 2 lower ends, basis are that interior hexagonal structure, side are provided with two circular holes; Intermediate conveyor screw drilling rod 3 is welded by central tube and helical blade, and upper end is with outer six side's boss and two semicircular pore structure, and lower end is that interior hexagonal structure, side are provided with two circular holes; As shown in Figure 3: basic auger stem 2 lower ends are connected with intermediate conveyor screw drilling rod 3 upper end couplings by the pin 4 that rises, bolt 5; Be connected as shown in Figure 4: guiding drill bit 7 upper ends are outer six side's boss and two semicircular pore structure, and with intermediate conveyor screw drilling rod 3 lower end couplings.
Further, staff can choose quantity according to actual conditions, and the quantity of intermediate conveyor screw drilling rod 3 is more than 1.
As optimal way of the present utility model, bolt 5 Yu Zhangxiao 4 bearings also arrange check washer 6, can effectively prevent bolt 5 and the pin 4 that rises become flexible, make fixing more firm.
Further, as shown in Figure 5, guiding drill bit 7 is welded by centering impeller 7.4, bucket tooth 7.3 or pick, support blade 7.2, slag-guiding plate 7.1 and central tube; Bucket tooth 7.3 or pick are welded on the lower surface of two symmetrical support blades 7.2, this support blade 7.2 from lead angle starting point to 120 millimeters of places of helical blade bearing of trend, its pagewidth progressively reduces to become variable section structure, and slag-guiding plate 7.1 is welded on the outer edge surface of support blade 7.2; Can also on the external cylindrical surface of support blade 7.2 bottoms, weld the pick of dimension according to the variation of different Foundation Design cast-in-place concrete pile diameters, can complete in time the change of this augers construction diameter.
As improvement of the present utility model, as shown in Figure 2 and Figure 5: intermediate conveyor screw drilling rod 3 guiding drill bit 7 upper ends are also designed with pin feature, bolt drilling rod 3 and basic auger stem 2 in the middle of guaranteeing in assembling process, the accuracy of relative position between guiding drill bit 6 and intermediate conveyor screw drilling rod 2.
1 the intermediate conveyor screw drilling rod 3 of take is below example, during installation, by the upper end of intermediate conveyor screw drilling rod 3, insert in the interior hexagonal structure of basic auger stem 2 lower ends, adjust after the correct position of helical blade, the pin 4 that rises is arranged in two circular holes of connecting portion, then places lock washer 6, erection bolt 5 moment of torsion according to the rules and tighten; Then guiding drill bit 7, according to correct position, be arranged on the lower end of intermediate conveyor screw drilling rod 2, keep equally the correct of its spiral blade face relative position, install thereupon and tighten rise pin 4, lock washer 6 and bolt 5, complete installation, more than 2 and 2 intermediate conveyor screw drilling rod 3 mounting meanss are consistent with said method.
In sum: the utility model is the in the situation that of guiding drill bit 7 basic structure size constancy, by the add up connection of intermediate conveyor screw drilling rod 3 of segmentation, guarantee that single drilling depth strengthens, can also by change and this drill bit lower end, connect the structure of different guiding drill bits 7 and arc pressuring plate structure 1, meet length, the drilling diameter demand of different geology construction augers.
Claims (6)
1. a length adjustable spiral drill bit structure, comprises basic auger stem (2) and guiding drill bit (7), and basic auger stem (2) is structural member, comprises central tube and helical blade, and square chest structure is contained on its top, it is characterized in that,
In basic auger stem (2) upper end, maximum gauge place outside helical blade, be provided with two with guiding drill bit (7) the adjustable arc pressuring plate parts of axis of rotation angle (1), the setting height(from bottom) of two arc pressuring plate parts (1) is poor is half of basic auger stem (2) helical blade helical pitch; Also comprise intermediate conveyor screw drilling rod (3); Auger stem (2) lower end, basis is that interior hexagonal structure, side are provided with two circular holes; Intermediate conveyor screw drilling rod (3) is welded by central tube and helical blade, and upper end is with outer six side's boss and two semicircular pore structure, and lower end is that interior hexagonal structure, side are provided with two circular holes; Auger stem (2) lower end, basis is connected with intermediate conveyor screw drilling rod (3) upper end coupling by the pin that rises (4), bolt (5); Guiding drill bit (7) upper end is outer six side's boss and two semicircular pore structure, and is connected with intermediate conveyor screw drilling rod (3) lower end coupling.
2. a kind of length adjustable spiral drill bit structure according to claim 1, is characterized in that, arc pressuring plate parts (1) comprise gripper shoe (1.1), cover (1.2) and pressing plate (1.3); Gripper shoe (1.1) and pressing plate (1.3) are welded as a whole, and cover (1.2) is welded in the outer rim of basic auger stem (2) blade, and pressing plate (1.3) two end boss are placed in the circular hole of cover (1.2).
3. a kind of length adjustable spiral drill bit structure according to claim 1, is characterized in that, the quantity of described intermediate conveyor screw drilling rod (3) is more than 1.
4. a kind of length adjustable spiral drill bit structure according to claim 1 and 2, is characterized in that, described bolt (5) also arranges check washer (6) with pin (4) bearing of rising.
5. a kind of length adjustable spiral drill bit structure according to claim 1 and 2, is characterized in that, guiding drill bit (7) is welded by centering impeller (7.4), bucket tooth (7.3) or pick, support blade (7.2), slag-guiding plate (7.1) and central tube; Bucket tooth (7.3) or pick are welded on the lower surface of two symmetrical support blades (7.2), this support blade (7.2) from lead angle starting point to 120 millimeters of places of helical blade bearing of trend, its pagewidth progressively reduces to become variable section structure, and slag-guiding plate (7.1) is welded on the outer edge surface of support blade (7.2).
6. according to a kind of length adjustable spiral drill bit structure described in claim 1,2 or 3, it is characterized in that, intermediate conveyor screw drilling rod (3) is installed locating surface with guiding drill bit (7) upper end and is also provided with pin feature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890707.5U CN203729883U (en) | 2013-12-31 | 2013-12-31 | Length-adjustable spiral drill bit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890707.5U CN203729883U (en) | 2013-12-31 | 2013-12-31 | Length-adjustable spiral drill bit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203729883U true CN203729883U (en) | 2014-07-23 |
Family
ID=51199964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320890707.5U Withdrawn - After Issue CN203729883U (en) | 2013-12-31 | 2013-12-31 | Length-adjustable spiral drill bit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203729883U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742079A (en) * | 2013-12-31 | 2014-04-23 | 徐州徐工基础工程机械有限公司 | Length adjustable spiral bit structure |
| CN108425642A (en) * | 2018-04-18 | 2018-08-21 | 邱实 | Drilling rod basis |
-
2013
- 2013-12-31 CN CN201320890707.5U patent/CN203729883U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742079A (en) * | 2013-12-31 | 2014-04-23 | 徐州徐工基础工程机械有限公司 | Length adjustable spiral bit structure |
| CN108425642A (en) * | 2018-04-18 | 2018-08-21 | 邱实 | Drilling rod basis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140723 Effective date of abandoning: 20160309 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |