CN219953241U - Reaming bit for foundation pit - Google Patents
Reaming bit for foundation pit Download PDFInfo
- Publication number
- CN219953241U CN219953241U CN202321137729.4U CN202321137729U CN219953241U CN 219953241 U CN219953241 U CN 219953241U CN 202321137729 U CN202321137729 U CN 202321137729U CN 219953241 U CN219953241 U CN 219953241U
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- head
- sleeve
- shaft
- reamer
- branch
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- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 description 6
- 230000008602 contraction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model provides a reamer bit of foundation ditch, including the pole shaft, go up the axle sleeve head, lower axle sleeve head is fixed at the tip of pole shaft, go up the axle sleeve head and install in the pole shaft, it has first branch to go up the axle sleeve head articulated, it has the second branch to go up the axle sleeve head articulated, the tip is articulated together between first branch and the second branch, go up the axle sleeve head, lower axle sleeve head and first branch, the second branch forms an expandable or shrink linkage structure, still install reamer bit on the articulated shaft between first branch and the second branch, reamer bit outer end is spheroid, reamer bit's surface is equipped with the toper blade, reamer bit realizes the foundation ditch by means of linkage expansion, be equipped with the fastener at the axle that is located between axle sleeve head and the lower axle sleeve head, be equipped with the adjustable sword spring of sword direction of broaching of sword spring on the fastener, reamer bit passes through linkage structure, make things convenient for the adjustable reaming of foundation ditch, the structure is through the taut regulation of outside wire rope, the size of accurate control size.
Description
Technical Field
The utility model relates to the field of drilling technical equipment of foundation pits, in particular to a reaming bit for a foundation pit.
Background
At present, a conventional club-footed pile type is formed by reaming a hole through a reamer, the reaming mode of the reamer generally comprises two modes of hydraulic reaming and mechanical reaming, the hydraulic reamer utilizes a hydraulic extension oil cylinder to perform reaming and furling, the adopted extension oil cylinder is generally arranged on the outer wall of a drill rod or the inner cavity of the drill rod, the expansion oil cylinder is in erosion of substances such as compressed air and slurry in the reaming process, the requirements on the machining precision and the sealing performance of the extension oil cylinder are very high, the manufacturing and assembling difficulties are high, the hydraulic system faults are easy to cause due to the failure of a sealing element in the using process, the operation cannot be required when the expansion arm needs to be timely opened in the drilling process, the mechanical reamer is opened by self gravity when the reaming wings are in the drilling process of the drill rod, and the mechanical reamer is furled by self by the lever principle when in the hoisting process, so that the reaming bit of a foundation pit with the size can not be guaranteed is very necessary to design, and the problem that the reaming size of the conventional mechanical reamer can be accurately controlled in the reaming process is solved.
Disclosure of Invention
To achieve the above object, the present utility model is achieved by: the utility model provides a foundation ditch reaming bit, includes a hollow axle, goes up axle sleeve head, lower axle sleeve head, the cover that lower axle sleeve head is fixed is established the tip of axle, go up the installation of axle sleeve head activity on the axle, its characterized in that: the utility model discloses a reamer head, including upper shaft sleeve head, lower shaft sleeve head, first branch of upper shaft sleeve head, lower shaft sleeve head, first branch, second branch, movable upper shaft sleeve head, lower shaft sleeve head, first branch, second branch, the articulated epaxial still pivoted of articulated between first branch and the second branch installs the reamer head, the reamer head outer end is the spheroid, be equipped with the toper blade on the spheroid surface of reamer head in different directions, the reamer head is borrowed by linkage structure expansion realizes the foundation ditch reaming, be located upper shaft sleeve head with still be equipped with the fastener on between the lower shaft sleeve head, be equipped with on the fastener correspond with the reamer spring of reamer head, the one end pivoted of reamer spring connect in on one side of keeping away from the toper blade, the structure is in or shrink in the articulated process, the reamer head's the toper blade of adjustment of reamer spring rotates.
Further, the end of the rod shaft is provided with a disc-shaped rod shaft connecting end, the bottom of the lower shaft sleeve head is provided with a bottom groove, the rod shaft is clamped in the bottom groove through the rod shaft connecting end, and the rod shaft connecting end is fixed with the bottom groove through a screw. Through foretell setting, ready a firm connection between axle and the lower axle sleeve head for the axle can act on the lower axle sleeve head, realizes linkage structure expansion or shrink, has realized that reaming cutter head's foundation ditch is with different radius sizes to ream.
Further, the upper shaft sleeve head is fixedly sleeved with an outer sleeve outside the shaft in the direction away from the lower shaft sleeve head, the outer sleeve is movably connected with the shaft, an inner sleeve is further arranged on one side of the shaft, away from the upper shaft sleeve head, of the outer sleeve, the inner sleeve is movably sleeved on the shaft, one end of the inner sleeve is sleeved inside the outer sleeve, and the inner sleeve and the outer sleeve are provided with an inner sleeve spring sleeved outside the shaft. Through the arrangement, after the upper shaft sleeve head and the outer sleeve are fixed on the external fixed force arm, the outer sleeve and the upper shaft sleeve head form a connecting piece which can move relative to the shaft, only the shaft is pulled up and down, the shaft can be pulled up or loosened relative to the upper shaft sleeve head, the lower shaft sleeve head is tensioned or loosened relative to the upper shaft sleeve head, the linkage structure is further expanded or contracted, the outer sleeve, the inner sleeve and the inner sleeve spring are arranged, the integral length between the outer sleeve and the inner sleeve can be conveniently adjusted, the external fixation of the adjustable multipoint fixed force arm of the reamer bit is facilitated, and the adjustable installation of the reamer bit on a drilling frame is better adapted.
Further, the end of the rod shaft is provided with a chain, the rod shaft is fixedly suspended on the foundation pit through the chain, the inner sleeve comprises a fixing plate, steel wire rope holes for expanding or contracting the linkage structure are formed in the fixing plate, the steel wire rope holes are arranged on two sides of the fixing plate in pairs, knotted tensioning steel wire ropes can be wound in the steel wire rope holes, the tensioning steel wire ropes take the steel wire rope holes as nodes, the chain is wound and arranged on an external tensioning motor mounted on a drilling frame, the outer sleeve and the inner sleeve are respectively fixed on the outer portion, the tensioning steel wire ropes are pulled or loosened through the tensioning motor, the position of the inner sleeve on the rod shaft is changed through the tensioning steel wire ropes, and accordingly the rod shaft is tensioned or loosened to realize adjustable expansion or contraction of the linkage structure.
Further, one end of the inner sleeve is provided with a supporting part, the inner sleeve is sleeved inside the outer sleeve through the supporting part, the inner sleeve spring is propped against the upper part of the supporting part, one end of the outer sleeve is provided with a connecting disc, the connecting disc is provided with a fixing piece which is used for clamping the supporting part, and the fixing piece is fixedly connected with the connecting disc through a screw. After the connection mode is adopted, the connection between the outer sleeve and the inner sleeve is more stable.
Further, one end of the outer sleeve is further provided with an external thread part, the upper shaft sleeve head is provided with an internal thread part corresponding to the external thread part, and the outer sleeve is in threaded connection with the internal thread part of the upper shaft sleeve head through the external thread part.
According to the utility model, the reaming tool bit can be conveniently expanded or contracted through the linkage structure, so that the adjustable reaming of the foundation pit is facilitated, and the linkage structure can be adjusted through the tensioning of the external tensioning steel wire rope, so that the size of the reaming size is accurately controlled.
According to the utility model, the reaming direction of the conical blade of the reaming cutter head in the expanding or contracting process can be conveniently controlled by the adjusting spring connected with the reaming cutter head.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is an enlarged schematic view of part of a in fig. 1.
Fig. 3 is a schematic view of the internal cross-section of the utility model of fig. 1.
Fig. 4 is a schematic perspective view of the spindle.
Fig. 5 is a schematic perspective view of an inner sleeve.
Fig. 6 is a schematic perspective view of an outer sleeve.
Fig. 7 is a schematic view of the inner cross-section of the outer sleeve.
Fig. 8 is a schematic perspective view of the upper bushing head.
FIG. 9 is a second perspective view of the upper bushing head.
Fig. 10 is a schematic perspective view of the lower bushing head.
FIG. 11 is a second perspective view of the lower bushing head.
Fig. 12 is a schematic perspective view of a reamer head.
Wherein: 1-spindle, 1 a-spindle connection, 2-inner sleeve, 2 a-fixed plate, 2 b-wire rope hole, 2 c-projection, 2 d-support, 3-outer sleeve, 3 a-connection pad, 3 b-external screw thread, 4-stator, 5-upper hub, 5 a-first hinge, 5 b-internal screw thread, 6-lower hub, 6 a-second hinge, 6 b-undercut, 7-first strut, 8-second strut, 9-clip, 9 a-first spring connection, 9 b-fixed screw, 10-reamer head, 10 a-tapered blade, 10 b-cutter hole, 10 c-second spring connection, 11-cutter-adjusting spring, 12-chain, 13-inner sleeve spring.
Detailed Description
Embodiments of the present utility model will be briefly described below with reference to the drawings.
1-3, including a hollow shaft 1, an upper sleeve head 5, a lower sleeve head 6, the lower sleeve head 6 is fixedly sleeved on the end of the shaft 1, the upper sleeve head 5 is movably installed on the shaft 1, referring to FIG. 8, one end of the upper sleeve head 5 is provided with a first hinge part 5a, the first hinge part 5a is circumferentially arrayed on the upper sleeve head 5, the first hinge part 5a is hinged with a first strut 7, specifically, to ensure the stability and balance of the connection of the first strut 7, the first strut 7 is arranged on both sides of the first hinge part 5a in pairs, a plurality of the first struts 7 arranged in pairs are also circumferentially arrayed and hinged on the upper sleeve head 5, referring to FIG. 10, one end of the lower sleeve head 6 is correspondingly provided with a second hinge part 6a, the lower sleeve head 6 is also hinged with a second strut 8 in the same manner, and the end parts between the first strut 7 and the second strut 8 are also hinged together, after the first support rod 7 and the second support rod 8 are hinged together, the movable upper shaft sleeve head 5, the lower shaft sleeve head 6, the first support rod 7 and the second support rod 8 form an expandable or contractible linkage structure, a reaming cutter head 10 is rotatably arranged on the hinge shaft between the first support rod 7 and the second support rod 8, the outer end of the reaming cutter head 10 is in a sphere shape, a conical blade 10a is arranged on the surface of the sphere of the reaming cutter head 10 in different directions, a cutter hole 10b for installing the reaming cutter head 10 is arranged on one side of the sphere of the reaming cutter head 10 away from the conical blade 10a, the reaming cutter head 10 is rotatably arranged on the hinge shaft between the first support rod 7 and the second support rod 8 through the cutter hole 10b, foundation pit reaming is realized by the expansion of the reaming cutter head 10 through the linkage structure, a clamping piece 9 is further arranged on the rod shaft 1 between the upper shaft sleeve head 5 and the lower shaft sleeve head 6, the clamping piece 9 is arranged in an adjustable mode, a first spring connecting end 9a of a circumferential array is arranged on the clamping piece 9, a fixing screw 9b penetrating through the clamping piece 9 is arranged inside the first spring connecting end 9a and used for adjustably positioning the clamping piece 9 at a preset position on the rod shaft 1 between the upper shaft sleeve head 5 and the lower shaft sleeve head 6, a second spring connecting end 10c is arranged on the reaming cutter head 10 in the direction, away from the conical cutter blade 10a, of the cutter hole 10b in an extending mode, a cutter adjusting spring 11 is arranged between the first spring connecting end 9a and the second spring connecting end 10c in a rotating mode, and the reaming direction of the conical cutter blade 10a is adjusted through rotation of the cutter adjusting spring 11 in the expanding or contracting process of the linkage structure, so that reaming of a foundation pit is achieved.
By adopting the technical scheme, in order to better realize the fixed connection between the rod shaft 1 and the lower shaft sleeve head 6, referring to fig. 4, the end part of the rod shaft 1 is provided with a disc-shaped rod shaft connecting end 1a, referring to fig. 11, the bottom of the lower shaft sleeve head 6 is provided with a bottom groove 6b, the rod shaft 1 is clamped in the bottom groove 6b through the rod shaft connecting end 1a, and the rod shaft connecting end 1a and the bottom groove 6b are locked and fixed together through screw positioning, so that a firm connection is formed between the rod shaft 1 and the lower shaft sleeve head 6, the rod shaft 1 can act on the lower shaft sleeve head 6, the expansion or contraction of a linkage structure is realized, and the reaming of the reaming bit 10 by taking different radiuses as foundation pits is realized.
By adopting the technical scheme, for better realization, the outer part of the reaming bit is fixedly connected, the upper shaft sleeve head 5 is fixedly sleeved with the outer sleeve 3 arranged outside the shaft 1 in the direction away from the lower shaft sleeve head 6, the outer sleeve 3 is movably connected with the shaft 1, the shaft 1 is further provided with the inner sleeve 2 positioned on one side of the outer sleeve 3 away from the upper shaft sleeve head 5, the inner sleeve 2 is movably sleeved on the shaft 1, one end of the inner sleeve 2 is provided with a supporting part 2d, one end of the inner sleeve 2 positioned by the supporting part 2d is sleeved inside the outer sleeve 3, the inner sleeve 2 and the outer sleeve 3 are provided with an inner sleeve spring 13 sleeved outside the shaft 1, the inner sleeve spring 13 is propped against and pressed by the upper part of the supporting part 2d, one end of the outer sleeve 3 is provided with a connecting disc 3a, the other end of the outer sleeve 3 is further provided with an external thread part 3b, the upper shaft sleeve head 5 is provided with an internal thread part 5b corresponding to the external thread part 3b, the outer sleeve 3 is connected with the inner thread part 5b of the upper shaft sleeve head 5 through the outer thread part 3b, the connecting disc 3a is provided with the fixing piece 4 which clamps the supporting part 2d, and the fixing piece 4 is fixedly locked with the connecting disc 3a through screw connection, so that after the connection mode is adopted, the connection between the outer sleeve 3 and the inner sleeve 2 is more stable, the upper shaft sleeve head 5 and the outer sleeve 3 are both fixed on an external fixed arm of force, the outer sleeve 3 and the upper shaft sleeve head 5 form a connecting piece which can move relative to the rod shaft 1, only the rod shaft 1 is required to be pulled up and down, the rod shaft 1 can tighten or loosen the lower shaft sleeve head 6 relative to the upper shaft sleeve head 5, the linkage structure is further expanded or contracted, the whole length between the outer sleeve 3, the inner sleeve 2 and the inner sleeve spring 13 is arranged, the whole length between the outer sleeve 3 and the inner sleeve 2 can be conveniently adjusted, thereby facilitating the external fixation of the adjustable multipoint fixing arm of force of the reamer bit and being better suitable for the adjustable installation of the reamer bit on the drilling frame.
By adopting the technical scheme, the end of the rod shaft 1 is provided with the chain 12, the outside of the rod shaft 1 is fixedly suspended on a foundation pit through the chain 12, wherein the inner sleeve 2 further comprises the fixed plate 2a, the fixed plate 2a is provided with the steel wire rope holes 2b for expanding or contracting the linkage structure, the steel wire rope holes 2b are arranged on two sides of the fixed plate 2a in pairs, the middle part of the fixed plate 2a is provided with the protruding parts 2c for better sleeving the inner sleeve 2 on the outside of the rod shaft 1, the steel wire rope holes 2b can be wound with knotted tightening steel wire ropes, the tightening steel wire ropes take the steel wire rope holes 2b as nodes, the outer sleeve 3 and the inner sleeve 2 are respectively fixed on the outside, the tightening steel wire ropes are pulled or loosened through the tightening motor, the tightening steel wire ropes change the positions of the inner sleeve 2 on the rod shaft 1, accordingly, the adjustable expanding or contracting of the linkage structure is realized, the rod shaft can be tensioned and adjusted through the tightening of the outer tightening steel wire ropes, and the size of the rod shaft can be controlled.
The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (6)
1. The utility model provides a reamer bit of foundation ditch, includes a hollow axle, goes up axle sleeve head, lower axle sleeve head, the cover that lower axle sleeve head is fixed is established the tip of axle, go up the installation of axle sleeve head activity on the axle, its characterized in that: the utility model discloses a reamer head, including upper shaft sleeve head, lower shaft sleeve head, first branch of upper shaft sleeve head, lower shaft sleeve head, first branch, second branch, movable upper shaft sleeve head, lower shaft sleeve head, first branch, second branch, the articulated epaxial still pivoted of articulated between first branch and the second branch installs the reamer head, the reamer head outer end is the spheroid, be equipped with the toper blade on the spheroid surface of reamer head in different directions, the reamer head is borrowed by linkage structure expansion realizes the foundation ditch reaming, be located upper shaft sleeve head with still be equipped with the fastener on between the lower shaft sleeve head, be equipped with on the fastener correspond with the reamer spring of reamer head, the one end pivoted of reamer spring connect in on one side of keeping away from the toper blade, the structure is in or shrink in the articulated process, the reamer head's the toper blade of adjustment of reamer spring rotates.
2. A reamer head for a foundation pit according to claim 1, wherein: the end of the rod shaft is provided with a disc-shaped rod shaft connecting end, the bottom of the lower shaft sleeve head is provided with a bottom groove, the rod shaft is clamped in the bottom groove through the rod shaft connecting end, and the rod shaft connecting end is fixed with the bottom groove through screw positioning.
3. A reamer head for a foundation pit according to claim 1, wherein: the upper shaft sleeve head is fixedly sleeved with an outer sleeve outside the shaft in the direction away from the lower shaft sleeve head, the outer sleeve is movably connected with the shaft, an inner sleeve is further arranged on one side of the shaft, away from the upper shaft sleeve head, of the outer sleeve, the inner sleeve is movably sleeved on the shaft, one end of the inner sleeve is sleeved inside the outer sleeve, and the inner sleeve and the outer sleeve are provided with an inner sleeve spring sleeved outside the shaft.
4. A reamer head for a foundation pit according to claim 3, wherein: the end part of the rod shaft is provided with a chain, the inner sleeve comprises a fixed plate, the fixed plate is provided with steel wire rope holes for expanding or contracting the linkage structure, and the steel wire rope holes are arranged on two sides of the fixed plate in pairs.
5. A reamer head for a foundation pit according to claim 3, wherein: the inner sleeve is provided with a supporting part at one end, the inner sleeve is sleeved inside the outer sleeve through the supporting part, the inner sleeve spring is propped against the upper part of the supporting part, one end of the outer sleeve is provided with a connecting disc, the connecting disc is provided with a fixing piece which is used for clamping the supporting part, and the fixing piece is fixedly connected with the connecting disc through a screw.
6. A reamer head for a foundation pit according to claim 3, wherein: the outer sleeve is characterized in that one end of the outer sleeve is further provided with an external thread part, the upper shaft sleeve head is provided with an internal thread part corresponding to the external thread part, and the outer sleeve is in threaded connection with the internal thread part of the upper shaft sleeve head through the external thread part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321137729.4U CN219953241U (en) | 2023-05-12 | 2023-05-12 | Reaming bit for foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321137729.4U CN219953241U (en) | 2023-05-12 | 2023-05-12 | Reaming bit for foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219953241U true CN219953241U (en) | 2023-11-03 |
Family
ID=88540028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321137729.4U Active CN219953241U (en) | 2023-05-12 | 2023-05-12 | Reaming bit for foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219953241U (en) |
-
2023
- 2023-05-12 CN CN202321137729.4U patent/CN219953241U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |