CN201087359Y - Novel bottom expanding tool rest - Google Patents
Novel bottom expanding tool rest Download PDFInfo
- Publication number
- CN201087359Y CN201087359Y CNU2007200147637U CN200720014763U CN201087359Y CN 201087359 Y CN201087359 Y CN 201087359Y CN U2007200147637 U CNU2007200147637 U CN U2007200147637U CN 200720014763 U CN200720014763 U CN 200720014763U CN 201087359 Y CN201087359 Y CN 201087359Y
- Authority
- CN
- China
- Prior art keywords
- projection
- groove
- cutter
- cutting tool
- expanding equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model relates to a cutter saddle applied to a bottom-expanded device. The upper edge of the cutter saddle is provided with a cross rod (3) which is connected with the shaft sleeve (1) of the bottom-expanded device, the shaft (2) of the bottom-expanded device passes through the cross rod (3), a cutting tool (4) is connected with the shaft of the bottom-expanded device through a connection rod (5), the connection rod (5) is hinged to the cutting tool (4), the shaft (2) of the bottom-expanded device is hinged to the connection rod (5), a groove (6) is arranged on the cross rod, a projection (7) which matches a hole on the cutting tool (4) is arranged on the groove (6), and the hole on the cutting tool (4) is sleeved on the projection (7). As the utility model adopts the structure that the groove is arranged on the cross rod, the projection which matches the hole on the cutting tool is arranged on the groove, and the hole on the cutting tool is sleeved on the projection, when a motor runs, the connection rod is driven by the projection and moves freely along the groove, thereby being able to choose different hack ranges.
Description
Technical field
The utility model relates to a kind of knife rest, particularly relates to a kind of knife rest that is applicable to bottom-expanding equipment.
Background technology
Along with the development gradually of builing industry, the construction of high-rise building is more and more, and highrise building also is more and more higher to the demands for bearing capacity of ground.In order to increase single pile bearing capacity, prior art is to adopt expanded bore pile to improve bearing capacity of single pile, can also reduce cost simultaneously.Also arise at the historic moment for cooperating expanded bore pile to expand end shoveling equipment, but present bottom-expanding equipment cutter frame structure is very complicated, it is also undesirable to expand end effect thereupon, owing to the structure of knife rest makes applying of bottom-expanding equipment be subjected to certain limitation.Therefore be badly in need of existing knife rest is further improved.The applicant once applied for the Chinese utility model patent of bottom-expanding equipment special tool-post for this reason, this cutter frame structure is simple, but has a defective in actual use: owing to what adopt between hack cutter and the cross bar is the mode that is fixedly hinged, fixed angle, the hack scope is fixed, and uses and is limited to.
The utility model content
The utility model is exactly in order to solve the problems of the technologies described above, and a kind of bottom-expanding equipment knife rest is provided, it simple in structure, and it is effective to expand the end, and the hack wide ranges, applied widely.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows: novel expansion bed plate frame, its top is provided with the cross bar that is connected with the axle sleeve of bottom-expanding equipment, the axle of bottom-expanding equipment passes cross bar, cutter and bottom-expanding equipment spool between be connected by connecting rod, connecting rod and cutter are articulated and connected, the axle and the connecting rod of bottom-expanding equipment are articulated and connected, the two ends of described cross bar are respectively arranged with groove, groove be provided with cutter on the projection that is complementary of hole, the borehole jack on the cutter is contained on the projection.
Described cutter is two.
Advantage of the present utility model and effect are as follows:
1, the utility model compared with prior art, simple in structure, it is effective to expand the end, is convenient to safeguard, has reduced cost, is used with bottom-expanding equipment and has improved expansion substrate amount, precision and efficient, cost is low.
2, the utility model is because cross bar is provided with groove, groove be provided with cutter on the projection that is complementary of hole, the borehole jack on the cutter is contained on the projection.When motor rotated, connecting rod moved freely along groove under the drive of projection, thereby can select different hack scopes.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, the axle sleeve of bottom-expanding equipment; 2, the axle of bottom-expanding equipment; 3, cross bar; 4 cutters; 5, connecting rod; 6, groove; 7, projection.
The specific embodiment
Embodiment to this utility model is described below in conjunction with accompanying drawing.
As shown in Figure 1, the structure of the utility model bottom-expanding equipment knife rest is as follows: its top is provided with the cross bar 3 that is connected with the axle sleeve 1 of bottom-expanding equipment, the axle 2 of bottom-expanding equipment passes cross bar 3, be connected by connecting rod 5 between the axle 2 of cutter 4 and bottom-expanding equipment, connecting rod 5 is articulated and connected with cutter 4, and the axle 2 and the connecting rod 5 of bottom-expanding equipment are articulated and connected, and the two ends of described cross bar are respectively arranged with groove 6, groove 6 be provided with cutter 4 on the projection 7 that is complementary of hole, the borehole jack on the cutter 4 is contained on the projection 7.
Claims (2)
1. novel expansion bed plate frame, its top is provided with the cross bar (3) that is connected with the axle sleeve (1) of bottom-expanding equipment, the axle of bottom-expanding equipment (2) passes cross bar (3), be connected by connecting rod (5) between the axle (2) of cutter (4) and bottom-expanding equipment, connecting rod (5) is articulated and connected with cutter (4), the axle of bottom-expanding equipment (2) is articulated and connected with connecting rod (5), the two ends that it is characterized in that described cross bar are respectively arranged with groove (6), groove (6) be provided with cutter (4) on the projection (7) that is complementary of hole, the borehole jack on the cutter (4) is contained on the projection (7).
2. bottom-expanding equipment knife rest according to claim 1 is characterized in that described cutter (4) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200147637U CN201087359Y (en) | 2007-09-28 | 2007-09-28 | Novel bottom expanding tool rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200147637U CN201087359Y (en) | 2007-09-28 | 2007-09-28 | Novel bottom expanding tool rest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201087359Y true CN201087359Y (en) | 2008-07-16 |
Family
ID=39634953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200147637U Expired - Fee Related CN201087359Y (en) | 2007-09-28 | 2007-09-28 | Novel bottom expanding tool rest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201087359Y (en) |
-
2007
- 2007-09-28 CN CNU2007200147637U patent/CN201087359Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20100928 |