CN220101230U - Drill rod cutter - Google Patents
Drill rod cutter Download PDFInfo
- Publication number
- CN220101230U CN220101230U CN202321621563.3U CN202321621563U CN220101230U CN 220101230 U CN220101230 U CN 220101230U CN 202321621563 U CN202321621563 U CN 202321621563U CN 220101230 U CN220101230 U CN 220101230U
- Authority
- CN
- China
- Prior art keywords
- cutting
- piston rod
- sleeve
- lower piston
- cutting sleeve
- 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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Links
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000000110 cooling liquid Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a drill rod cutter which comprises a cutting sleeve, wherein the cutting sleeve is of a hollow sleeve structure, an upper piston rod and a lower piston rod are arranged in the cutting sleeve, a plurality of cutting pieces are arranged between the upper piston rod and the lower piston rod, the cutting pieces are connected in the cutting sleeve through pin shafts, a spring is sleeved on the lower piston rod in a penetrating manner, and the bottom of the lower piston rod penetrates out of the bottom of the cutting sleeve. The utility model has reasonable and ingenious structural design, utilizes the acting force between the cut drill rod and the cutter to jack up the lower piston rod, so that the cutting piece is turned over, the alloy head at the end part of the cutting piece has high hardness and cutting resistance, the cutting efficiency is high, the whole structure is concise, and the requirement on the precision of the internal structure is lower.
Description
Technical Field
The utility model relates to a drill rod cutter.
Background
The drill rod is easy to be clamped in the drilling process, and is difficult to lift, if the drill rod is cut, the lifted drill rod can be used continuously, the utilization rate of the drill rod is improved, and the production cost is reduced. The application day is 2019.01.25, the publication day is 2019.04.05, chinese patent application number 201910070945.3 discloses a drilling rod sleeve cutter, including cutting pipe and cutting knife, be equipped with inside bellied supporting ring in the cutting pipe inner circle, sliding connection has the control pipe in the cutting pipe, and the control pipe includes pipe and lower pipe, is equipped with reset spring between the lower terminal surface of pipe and the supporting ring, and the sword groove with inside intercommunication has been seted up to the both sides of cutting pipe, and the cutting knife rotates to be connected in the sword inslot, and the upper end of cutting knife is equipped with inwards extending arch. High-pressure cooling liquid is injected into the cutting pipe, the high-pressure cooling liquid flows downwards through the control pipe, and when the cooling liquid flows out of the control pipe, the cooling liquid can apply downward pressure to the control pipe. The control tube presses the bulge on the cutter, so that the cutter is propped open. The supporting of cutting knife needs coolant liquid to pressurize, and in order to ensure inside pressure, overall structure is complicated, and the higher requirement of precision requirement to the structure to the cutting knife is wearing and tearing relatively easily, and life is shorter.
Disclosure of Invention
The utility model relates to a drill pipe sleeve cutter which is simple in structure and long in service life.
To achieve this object, the present utility model employs a structure in which: the drill rod cutter comprises a cutting sleeve, wherein the cutting sleeve is of a hollow pipe structure, an upper piston rod is arranged in the cutting sleeve and fixedly connected with the cutting sleeve through an elastic pin, a lower piston rod is arranged below the upper piston rod, the bottom of the lower piston rod penetrates out of the bottom of the cutting sleeve, a plurality of cutting pieces are arranged between the lower piston rod and the upper piston rod and connected with the cutting sleeve through pin shafts, a notch is formed in the cutting sleeve corresponding to each cutting piece, when the lower piston rod is close to the upper piston rod, the top of the lower piston rod jacks up the cutting piece, the cutting pieces are overturned to extend out of the notch, and springs are sleeved outside the lower piston rod.
The cutting piece is provided with an alloy head.
A baffle is arranged at the top in the notch of the cutting sleeve.
The beneficial effects are as follows: the utility model has reasonable and ingenious structural design, utilizes the acting force between the cut drill rod and the cutter to jack up the lower piston rod, so that the cutting piece is turned over, the alloy head at the end part of the cutting piece has high hardness and cutting resistance, the cutting efficiency is high, the whole structure is concise, and the requirement on the precision of the internal structure is lower.
Drawings
The utility model will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a perspective view of the structure of the present utility model;
FIG. 2 is a cross-sectional block diagram of the present utility model;
FIG. 3 is an exploded view of the present utility model;
FIG. 4 is a schematic view of the structure of the cutting blade
FIG. 5 is a block diagram of the present utility model.
Description of the embodiments
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
The drill rod cutter shown in fig. 1-3 comprises a cutting sleeve 4, wherein the cutting sleeve 4 is of a hollow pipe structure, the hollow diameter of the upper section in the cutting sleeve 4 is large, and the hollow diameter of the lower section is small. The cutting sleeve 4 is internally provided with an upper piston rod 1, the upper piston rod 1 is fixedly connected with the cutting sleeve 4 through an elastic pin 7, a lower piston rod 2 is arranged below the upper piston rod 1, the bottom of the lower piston rod 2 penetrates out of the bottom of the cutting sleeve 4, a plurality of cutting blades 6 are arranged at the gap between the lower piston rod 2 and the upper piston rod 1, as shown in fig. 4, the middle section of each cutting blade 6 is a body 62, the bodies 62 are connected in the cutting sleeve 4 through pin shafts, one ends of the bodies 62 are compression rods 63, the other ends are alloy heads 61, the cutting sleeve 4 corresponds to each cutting, a notch 41 is arranged on each cutting blade 6, when the lower piston rod 2 is close to the upper piston rod 1, the compression rods 63 of the cutting blades 6 are jacked up by the top of the lower piston rod 2, the alloy heads 61 extend out of the notches 41 in the overturning process of the cutting blades 6, the outer sides of the lower piston rod 2 are sleeved with springs 3, and the bottoms of the springs 3 are fixed in the cutting sleeve 4 to provide pulling force for retraction of the lower piston rod 2.
As shown in fig. 5, a baffle 8 is disposed at the top of the notch 41 of the cutting sleeve 4, and the baffle 8 limits the overturning of the cutting blade 6, so that the cutting blade 6 maintains a fixed opening angle, and can be used for temporary reaming operation.
The utility model has reasonable and ingenious structural design, simple integral structure and lower precision requirement on the internal structure.
The utility model is not limited to the specific embodiments described above. The utility model extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (3)
1. The drill rod cutter comprises a cutting sleeve, wherein the cutting sleeve is of a hollow pipe structure, and is characterized in that an upper piston rod is arranged in the cutting sleeve, the upper piston rod is fixedly connected with the cutting sleeve through an elastic pin, a lower piston rod is arranged below the upper piston rod, the bottom of the lower piston rod penetrates out of the bottom of the cutting sleeve, a plurality of cutting pieces are arranged between the lower piston rod and the upper piston rod, the cutting pieces are connected with the cutting sleeve through pin shafts, a notch is formed in each cutting piece in the cutting sleeve correspondingly, when the lower piston rod is close to the upper piston rod, the top of the lower piston rod jacks up the cutting pieces, the cutting pieces are overturned out of the notch, and springs are sleeved outside the lower piston rod.
2. The drill rod cutter of claim 1, wherein the cutting blade has an alloy head disposed thereon.
3. The drill rod cutter of claim 1, wherein a stop is provided on the top of the cutting sleeve in the recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321621563.3U CN220101230U (en) | 2023-06-26 | 2023-06-26 | Drill rod cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321621563.3U CN220101230U (en) | 2023-06-26 | 2023-06-26 | Drill rod cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220101230U true CN220101230U (en) | 2023-11-28 |
Family
ID=88882706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321621563.3U Active CN220101230U (en) | 2023-06-26 | 2023-06-26 | Drill rod cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220101230U (en) |
-
2023
- 2023-06-26 CN CN202321621563.3U patent/CN220101230U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |