CN207824137U - A kind of small-bore pipe inner cutter - Google Patents
A kind of small-bore pipe inner cutter Download PDFInfo
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- CN207824137U CN207824137U CN201820015618.9U CN201820015618U CN207824137U CN 207824137 U CN207824137 U CN 207824137U CN 201820015618 U CN201820015618 U CN 201820015618U CN 207824137 U CN207824137 U CN 207824137U
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- pipe
- cutting torch
- small
- fixture
- inner cutter
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Abstract
The utility model is a kind of small-bore pipe inner cutter, including self-centering fixture, stationary fixture, driving motor, gyro black assembly and cutting torch, self-centering fixture is fixed on the exposed parts of pipe to be cut by claw, stationary fixture is arranged in the outer end of pipe to be cut, institute's self-centering fixture is connect by connecting mandrel with stationary fixture, driving motor is arranged by electric machine support on stationary fixture, gyro black assembly is connect by deep groove ball bearing with stationary fixture, cutting torch is mounted on gyro black assembly, and the inside of pipe to be cut is stretched into across gyro black assembly and stationary fixture, the output end of driving motor is equipped with pinion gear, gyro black assembly includes gear wheel, pinion gear is ratcheting with gear wheel.Advantageous effect is：Realize that the inside of the pipe of bore smaller (80mm or less) is cut off automatically；Small cutting torch water-cooled cutting torch can be in small space continuous work, and small but cutting power is strong, and reliability is high；Equipment operation is easy, improves production efficiency, while having lower maintenance cost.
Description
Technical field
The utility model is related to mechanical cutting tool technical field, more particularly to a kind of small-bore pipe inner cutter.
Background technology
In some cases, such as the technical cooling tube head that leaves of Shield-bored tunnels mouth, tube outer wall are embedded in concrete
In wall, needs to cut off and there cannot be residual on surface, thus can only outward be cut off from inner wall.For heavy caliber
Pipe is easier from inner wall cutting, but for the pipe of bore smaller (80mm or less) due to the limitation of conventional cutting torch size
It is difficult to realize completely cut off automatically, since working space is narrow in pipe, positioning and cutting torch heat dissipation all have larger difficulty, also inconvenient
In observing cutting effect from the outside.
Utility model content
The utility model overcomes the shortcomings of in existing hand cut, provides to solve the problems in above-mentioned cutting processing
It is a kind of reasonable for structure, can improve positioning accuracy performance and small-bore pipe inner cutter, it can be ensured that effectively cut
It is disconnected, it is a kind of novel device that can greatly improve processing efficiency reduction operation labor intensity.
Technical solution is as follows
A kind of small-bore pipe inner cutter, which is characterized in that including self-centering fixture, stationary fixture, driving motor, revolution
Component and cutting torch, the self-centering fixture are fixed on the exposed parts of pipe to be cut, the stationary fixture setting by claw
In the outer end of pipe to be cut, the self-centering fixture is connect by connecting mandrel with the stationary fixture, the driving motor
It is arranged on stationary fixture by electric machine support, the gyro black assembly is connect by deep groove ball bearing with stationary fixture, described to cut
Torch is mounted on gyro black assembly, and the inside of pipe to be cut, the driving motor are stretched into across gyro black assembly and stationary fixture
Output end pinion gear is installed, the gyro black assembly includes gear wheel, and the pinion gear and gear wheel are ratcheting.
As a further improvement, the cutting torch is mounted on by cutting torch fixture on the gyro black assembly.
As a further improvement, the cutting torch includes main pipe body, and the main pipe body front end is equipped with cutting head, described
Pipe fitting end is equipped with oxygen air inlet, gas inlet, cooling water inlet and cooling water outlet, and oxygen is equipped in the main pipe body
Tracheae, Gas Pipe and cooling water inlet pipe, the oxygen hose and Gas Pipe extend to the cutting head, the cooling water inlet pipe
End and the cutting head between there is spacing distance, oxygen hose connection oxygen air inlet, Gas Pipe connection combustion
Gas air inlet, the cooling water inlet pipe are connect with the cooling water intake.
As a further improvement, the oxygen carries out being equipped with oxygen regulating valve at mouth, is equipped at the gas inlet
Gas control valve.
As a further improvement, the cutting torch further includes a guiding axis, and the guiding axis passes through cutting torch fixture parallel
It is arranged below the main pipe body, the guiding axis is connected with each other by guiding axis fixing piece and the main pipe body.
As a further improvement, the linear bearing passed through for guiding axis is equipped in the cutting torch fixture.
As a further improvement, in the main pipe body cutting torch screening glass is additionally provided with close to cutting head one end.
As a further improvement, also it is arranged with electronic impulse ignition apparatus on the cutting head.
As a further improvement, it is also associated with machine governor on the driving motor.
Advantageous effect
The utility model has the following advantages：1. realizing that the inside of the pipe of bore smaller (80mm or less) is cut off automatically.
2. small cutting torch water-cooled cutting torch can be in small space continuous work, small but cutting power is strong, and reliability is high.
3. automatic swinging structure has higher positioning accuracy.
4. cutting torch guiding axis designs the overall stiffness for improving cantilevered cutting torch, it is ensured that cutting accuracy.
It is positioned 5. the design of linear bearing guiding axis facilitates cutting torch to be adjusted along axis accurate movement.
6. equipment operation is easy, production efficiency is improved, while there is lower maintenance cost.
Description of the drawings
Below in conjunction with the accompanying drawings the utility model is further illustrated with case study on implementation.
Fig. 1 is the schematic cross-sectional view of the utility model；
Fig. 2 is the portions the A-A sectional view of Fig. 1；
Fig. 3 be Fig. 1 enlarged drawing from C to main pipe body end；
Fig. 4 is the scheme schematic diagram using workpiece inner circle clamping and positioning.
Figure label：
1, self-centering fixture 2, stationary fixture 3, driving motor
31, electric machine support 32, machine governor 4, cutting torch fixture
41, linear bearing 5, cutting torch 51, main pipe body
511, oxygen air inlet 512, gas inlet 513, cooling water inlet
514, cooling water outlet 52, cutting head 521, electronic impulse ignition apparatus
53, oxygen hose 54, Gas Pipe 55, cooling water inlet pipe
56, oxygen regulating valve 57, gas control valve 58, guiding axis
581, guiding axis fixing piece 59, cutting torch screening glass 6, connecting mandrel
7, deep groove ball bearing 8, pinion gear 9, gear wheel
A, pipe to be cut
Specific implementation mode
To make the structure feature to the utility model and the effect of being reached has a better understanding and awareness, to compared with
Good embodiment and attached drawing cooperation detailed description, are described as follows：
Referring to shown in Fig. 1-3, a kind of small-bore pipe inner cutter, including self-centering fixture 1, stationary fixture 2, driving motor
3, gyro black assembly and cutting torch 5, self-centering fixture 1 are fixed on the exposed parts of pipe a to be cut by claw, both can be such as Fig. 1
Shown fixed with the outer circle of pipe exposed parts to be cut, can also be with pipe exposed parts to be cut as shown in Figure 4
Inner circle is fixed, and automatically determines center with pipe outer circle, and self-centering fixture 1 still installs the base of following all parts simultaneously
Plinth realizes that cutting machine is supported relative to the positioning of pipe, and stationary fixture 2 is arranged in the outer end of pipe to be cut, self-centering fixture 1
It is connect with stationary fixture 2 by connecting mandrel 6, driving motor 3 is arranged by electric machine support 31 on stationary fixture 2, revolution group
Part is connect by deep groove ball bearing 7 with stationary fixture 1, can be mounted on back relative to the 360 ° of revolutions of fixing end and pipe, cutting torch 5
Turn on component, and stretches into the inside of pipe a to be cut across gyro black assembly and stationary fixture 2, the output end installation of driving motor 3
It includes gear wheel 9 to have pinion gear 8, gyro black assembly, and pinion gear 8 and gear wheel 9 are ratcheting, 3 driving pinion 8 of driving motor, small tooth
Wheel 8 drives gear wheel 9, gear wheel 9 that cutting torch 5 is driven to turn round together, and pipe is cut from the inner wall with cutting pipe a by flame,
Pipe can integrally be cut off from inner wall after rotating a circle.
In order to enable cutting torch to facilitate, be firmly installed on gear wheel, it is connected as an entirety with gear wheel, conveniently
Revolution, therefore cutting torch is mounted on by cutting torch fixture 4 on gear wheel 9.
Cutting torch 5 includes main pipe body 51, and 51 front end of main pipe body is equipped with cutting head 52, and pipe fitting end is equipped with oxygen air inlet
511, gas inlet 512, cooling water inlet 513 and cooling water outlet 514, main pipe body 51 is interior to be equipped with oxygen hose 53, combustion gas
Pipe 54 and cooling water inlet pipe 55, oxygen hose 53 and Gas Pipe 54 extend to cutting head 52, the end of cooling water inlet pipe 55 with
There is spacing distance between cutting head 52, oxygen hose 53 connects oxygen air inlet 511, Gas Pipe 54 connects gas inlet 512,
Cooling water inlet pipe 55 is connect with cooling water intake 513.Oxygen carries out being equipped with oxygen regulating valve 56, gas inlet at mouth 511
Gas control valve 57 is equipped at mouth 512.Oxygen hose and Gas Pipe are included by a main pipe body, make cutting torch structure
Simply, safe to use, while further including cooling water inlet pipe in main body, so that cutting torch is used water-cooling pattern, is entered by cooling water
Cutting heat is taken away in time in main pipe body and avoids cutting torch overheating deforming, increases the service life of cutting torch.
In order to ensure the overall stiffness of cantilevered cutting torch, it is ensured that cutting accuracy protects cutting torch, and cutting torch 5, which further includes one, leads
To axis 58, guiding axis 58 is arranged in parallel in 51 lower section of main pipe body across cutting torch fixture 4, and guiding axis 58 passes through guiding axis fixing piece
581 are connected with each other with main pipe body 52, and cutting torch screening glass 59 is additionally provided with close to 52 one end of cutting head in main pipe body 51.Cutting torch presss from both sides
The linear bearing 41 passed through for guiding axis is equipped in tool 4, this design facilitates cutting torch to be positioned along the adjusting of axis accurate movement.
In order to facilitate igniting, electronic impulse ignition apparatus 521 is also arranged on cutting head 52.
In order to enable driving motor speed governing and commutation, machine governor 32 is also associated on the driving motor 3.
The work step of the utility model：
1. 3 component of self-centering fixture to be clamped to pipe exposed parts to be cut, and automatically true with pipe outer circle
Centering position；
2. machine governor is powered on；
3. opening cutting torch cooling water circulation control valve；
4. by cutting torch, ignition location point is fought push-in pipe internal cutting position on the outside；
5. adjusting flame to cut state after cutting position completes preheating；
6. start driving motor drives cutting torch rotation according to preset speed driving gyro black assembly；
7. cutting torch completes internal cutting after rotating a circle, while driving motor is out of service；
8. suitably applying external force to pull out the pipe end cut off together by cutting machine；
Cutting is completed 9. unclamping fixture and disengaging pipe.
In conclusion the only preferred embodiment of the utility model, is not used for limiting the utility model implementation
Range, equivalent change carried out by all shape, construction, feature and spirit according to described in the utility model claims range with repair
Decorations, should all be included in the right of the utility model.
Claims (10)
1. a kind of small-bore pipe inner cutter, which is characterized in that including self-centering fixture, stationary fixture, driving motor, revolution group
Part and cutting torch, the self-centering fixture are fixed on the exposed parts of pipe to be cut by claw, and the stationary fixture setting exists
The outer end of pipe to be cut, the self-centering fixture are connect by connecting mandrel with the stationary fixture, and the driving motor is logical
It crosses electric machine support to be arranged on stationary fixture, the gyro black assembly is connect by deep groove ball bearing with stationary fixture, the cutting torch
On gyro black assembly, and the inside of pipe to be cut is stretched into across gyro black assembly and stationary fixture, the driving motor
Output end is equipped with pinion gear, and the gyro black assembly includes gear wheel, and the pinion gear and gear wheel are ratcheting.
2. a kind of small-bore pipe inner cutter according to claim 1, which is characterized in that the cutting torch passes through cutting torch fixture
On the gyro black assembly.
3. a kind of small-bore pipe inner cutter according to claim 1, which is characterized in that the cutting torch includes pipe fitting master
Body, the main pipe body front end be equipped with cutting head, the pipe fitting end be equipped with oxygen air inlet, gas inlet, cooling water into
Mouth and cooling water outlet, the main pipe body is interior to be equipped with oxygen hose, Gas Pipe and cooling water inlet pipe, the oxygen hose and combustion gas
Pipe extends to the cutting head, has spacing distance, the oxygen between the end of the cooling water inlet pipe and the cutting head
Tracheae connects oxygen air inlet, the Gas Pipe connects gas inlet, and the cooling water inlet pipe is intake with the cooling water
Mouth connection.
4. a kind of small-bore pipe inner cutter according to claim 3, which is characterized in that be equipped at the oxygen air inlet
Oxygen regulating valve is equipped with gas control valve at the gas inlet.
5. a kind of small-bore pipe inner cutter according to claim 3, which is characterized in that the cutting torch, which further includes one, leads
To axis, the guiding axis is connected with each other by guiding axis fixing piece and the main pipe body.
6. a kind of small-bore pipe inner cutter according to claim 5, which is characterized in that the guiding axis is pressed from both sides across cutting torch
Tool is arranged in parallel in below the main pipe body.
7. a kind of small-bore pipe inner cutter according to claim 5, which is characterized in that being equipped in the cutting torch fixture can
The linear bearing passed through for guiding axis.
8. a kind of small-bore pipe inner cutter according to claim 3, which is characterized in that close in the main pipe body to cut
Cutting torch one end is additionally provided with cutting torch screening glass.
9. a kind of small-bore pipe inner cutter according to claim 3, which is characterized in that be also arranged on the cutting head
Electronic impulse ignition apparatus.
10. a kind of small-bore pipe inner cutter according to claim 1, which is characterized in that also connect on the driving motor
It is connected to machine governor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820015618.9U CN207824137U (en) | 2018-01-04 | 2018-01-04 | A kind of small-bore pipe inner cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820015618.9U CN207824137U (en) | 2018-01-04 | 2018-01-04 | A kind of small-bore pipe inner cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207824137U true CN207824137U (en) | 2018-09-07 |
Family
ID=63391794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820015618.9U Active CN207824137U (en) | 2018-01-04 | 2018-01-04 | A kind of small-bore pipe inner cutter |
Country Status (1)
| Country | Link |
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| CN (1) | CN207824137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108115245A (en) * | 2018-01-04 | 2018-06-05 | 上海宝业机电科技有限公司 | A kind of small-bore pipe inner cutter |
| CN113210794A (en) * | 2020-01-21 | 2021-08-06 | 中国石油天然气股份有限公司 | Hole opening method |
-
2018
- 2018-01-04 CN CN201820015618.9U patent/CN207824137U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108115245A (en) * | 2018-01-04 | 2018-06-05 | 上海宝业机电科技有限公司 | A kind of small-bore pipe inner cutter |
| CN113210794A (en) * | 2020-01-21 | 2021-08-06 | 中国石油天然气股份有限公司 | Hole opening method |
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