CN2070359U - Test controlling device for oil pressure buttom reaming drill - Google Patents
Test controlling device for oil pressure buttom reaming drill Download PDFInfo
- Publication number
- CN2070359U CN2070359U CN 90220037 CN90220037U CN2070359U CN 2070359 U CN2070359 U CN 2070359U CN 90220037 CN90220037 CN 90220037 CN 90220037 U CN90220037 U CN 90220037U CN 2070359 U CN2070359 U CN 2070359U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- reversal valve
- type reversal
- bottom expanding
- oil
- 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.)
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Abstract
The utility model discloses a detecting controller for oil pressure bottom expanding drill bit, comprising a pump station, an M type change valve, a bottom expanding oil cylinder, a scale, a measuring oil cylinder and an O type change valve. The detecting controller is applied to the construction of bottom expanding and pile filling of large caliber engineering. The detecting controller is characterized in that the measuring oil cylinder is used on an oil gallery to directly detect the diameter of the expanded bottom and the process of the bottom expanding; the detection of the detecting controller is accurate and reliable.
Description
The utility model relates to a kind of oil pressure bottom expanding drill checkout gear, is applicable to that heavy caliber creeps into the construction of engineering bottom-enlarging filling pile.
Come from Japan with oil pressure bottom expanding drill construction bottom-enlarging filling pile technique functions, compare with the mechanical type bottom expanding drill, in pore forming process, do not need more bit change, it is fast to have speed of fulfiling hole, bellout diameter is accurate, and the ring stake of can constructing, in a boring, realize repeatedly reaming, thereby improve the end load and the frictional force of stake greatly.External oil pressure bottom expanding drill utilizes pressure meter and flow meter to detect bellout diameter and expands end process, because oil piping system pressure changes greatly in the construction, pressure control is inaccurate, and by the flowmeter survey changes in flow rate, can not intuitively react bellout diameter and expand end process.
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of oil pressure bottom expanding drill detection control apparatus is provided, and makes to detect bellout diameter and expand end process accurately and reliably.This apparatus features is to adopt to measure oil cylinder on oil return line, directly detects bellout diameter and expands end process.
This device is made up of pumping plant, M type reversal valve, O type reversal valve, measurement oil cylinder, expansion end oil cylinder, scale etc., in expanding end process, pass through control M type reversal valve and O type reversal valve, according to the reading of measuring pointer on the oil cylinder, realize detection to bit diameter and expansion end process.
Describe the formation and the operating principle of this device in detail below in conjunction with accompanying drawing.
Fig. 1 is an oil pressure bottom expanding drill detection control apparatus principle schematic.
Fig. 2 is an oil pressure bottom expanding drill structural representation.
The piston rod that expands end oil cylinder 3 among Fig. 2 links to each other with sliding sleeve 7, bottom expanding drill reaming when sliding sleeve 7 glides, and bottom expanding drill shrinks when sliding on the sliding sleeve 7.
After starting pumping plant 1 among Fig. 1, M type reversal valve 2 is connected meta, O type reversal valve 6 is connected position, a left side, and hydraulic oil enters the big chamber of measuring oil cylinder 5 through the meta of M type reversal valve 2 and the position, a left side of O type reversal valve 6, makes it reset back zero.When expanding the end M type reversal valve 2 and O type reversal valve 6 are successively connected right position, at this moment hydraulic oil enters the big chamber promotion piston that expands end oil cylinder 3 and moves down reaming through the right position of M type reversal valve 2, the loculus oil return of expanding end oil cylinder 3 simultaneously also enters the loculus of measuring oil cylinder 5 through the right position of M type reversal valve 2 and O type reversal valve 6 and promotes to move on the piston, makes the pointer of measuring on oil cylinder 5 piston rods directly point out the drill bit bellout diameter on scale 4.Expand the end behind predetermined diameter, O type reversal valve 6 is moved to meta, promptly stop to expand at the end.When shrinking drill bit, M type reversal valve 2 and O type reversal valve 6 are successively moved on to position, a left side, at this moment hydraulic oil promotes to move on its piston through the loculus that the position, a left side of M type reversal valve 2 enters expansion end oil cylinder 3, drill bit is shunk, expand the 3 big chamber oil returns of end oil cylinder simultaneously and its piston is moved down, the diameter of bottom expanding drill when at this moment the pointer on its piston can directly be pointed out to shrink on scale 4 again through the big chamber 2 that the position, a left side of M type reversal valve 2 and O type reversal valve 6 enters measurement oil cylinder 5.
Measure oil cylinder 5 and O type reversal valve 6 on oil return line, because oil pressure is very low, do not leak, so can all entering, the oil return of coming out from expand end oil cylinder 3 measures in the oil cylinder 5, measure accurately, and O type reversal valve 6 can make oil return enter the big loculus of measuring oil cylinder 5 respectively, just can measure oil cylinder 5 and detect the diameter that expands bottom expanding drill in end process and the contraction process respectively with one, adopt 2 controls of M type reversal valve to expand end oil cylinder 3, when M type reversal valve during, can when keeping the original state of drill bit, adjust the position of measuring pointer on oil cylinder 5 piston rods as required at meta.
Claims (3)
1, a kind of oil pressure bottom expanding drill detection control apparatus is made up of pumping plant 1, M type reversal valve 2, expansion end oil cylinder 3, scale 4, measurement oil cylinder 5 and O type reversal valve 6, it is characterized in that adopting measurement oil cylinder 5 to detect the bottom expanding drill diameters.
2, by the described detection control apparatus of claim 1, the big cavity area that it is characterized in that measuring oil cylinder 5 equals to expand the big cavity area of end oil cylinder 3 and the ratio of little cavity area with the ratio of little cavity area.
3,, it is characterized in that measuring oil cylinder 5 and O type reversal valve 6 is contained on the oil return line by the described detection control apparatus of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90220037 CN2070359U (en) | 1990-09-12 | 1990-09-12 | Test controlling device for oil pressure buttom reaming drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90220037 CN2070359U (en) | 1990-09-12 | 1990-09-12 | Test controlling device for oil pressure buttom reaming drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2070359U true CN2070359U (en) | 1991-01-30 |
Family
ID=4898655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90220037 Withdrawn CN2070359U (en) | 1990-09-12 | 1990-09-12 | Test controlling device for oil pressure buttom reaming drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2070359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777165A (en) * | 2012-07-23 | 2012-11-14 | 太仓市旭达机械设备有限公司 | Detection and control device for underreaming bits |
-
1990
- 1990-09-12 CN CN 90220037 patent/CN2070359U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777165A (en) * | 2012-07-23 | 2012-11-14 | 太仓市旭达机械设备有限公司 | Detection and control device for underreaming bits |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: YANG ZHONGKUN TO: XIANG ZHONGKUN |
|
| CU01 | Correction of utility model patent |
Correction item: Designer Correct: Xiang Zhongkun False: Yang Zhongkun Page: The title page |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Designer Correct: Xiang Zhongkun False: Yang Zhongkun Number: 5 Page: 95 Volume: 7 |
|
| ERR | Gazette correction |
Free format text: CORRECT: DESIGNER; FROM: YANG ZHONGKUN TO: XIANG ZHONGKUN |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |