CN208513896U - A kind of novel pipeline internal clamp - Google Patents
A kind of novel pipeline internal clamp Download PDFInfo
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- CN208513896U CN208513896U CN201820984894.6U CN201820984894U CN208513896U CN 208513896 U CN208513896 U CN 208513896U CN 201820984894 U CN201820984894 U CN 201820984894U CN 208513896 U CN208513896 U CN 208513896U
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- tensioner
- locating device
- voussoir
- fixed mechanism
- pipeline internal
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Abstract
The utility model relates to technical field of pipeline construction, concretely it is related to a kind of novel pipeline internal clamp, including preceding tensioning locating device, the coaxial fixed mechanism of tensioner afterwards, protective gas jet mechanism, tensioner logical control organ and power source, the preceding tensioning locating device and the coaxial fixed mechanism coaxial arrangement of rear tensioner, protective gas jet mechanism is set among the preceding tensioning locating device and the coaxial fixed mechanism of rear tensioner, bottom in tensioning locating device before the tensioner logical control organ is set to, for controlling the preceding tensioning locating device and the coaxial fixed mechanism of rear tensioner；Docking is successively installed separately by left and right welded pipe line when utility model works, the size of expanding force can be adjusted by control valve, circularity, unfitness of butt joint of recoverable deformation nozzle etc., counterpart is rapidly completed, guarantee that welding reliably, counterpart quality is high, operates easy and convenient；It greatly improves work efficiency, reduces engineering cost.
Description
Technical field
The utility model relates to technical field of pipeline construction, are concretely related to a kind of novel pipeline internal clamp.
Background technique
Currently, during pipeline construction, when butt welding of pipelines, there are many method used, have artificial group to method, steel loop
Formula external clamp, pneumatic line-up clamp etc., but efficiency is not high, and main cause is utensil heaviness, and operation is loaded down with trivial details, and concentricity is difficult to
It accurately controls, welding quality is not high, and use scope is narrow.Not requiring nothing more than plumber has certain experience, and is not able to satisfy difference
For caliber pipe group to requiring, some need more people's coordinating operations that can complete, and cost of labor and use cost are high.Especially in mountain area
When area, yard pipeline construction, site operation large labor intensity, low efficiency, group line up quality are difficult to ensure.
Now provide a kind of easy to operate, high-efficient, the pipe butt joint apparatus of concentricity accurate positioning is particularly adapted to middle-size and small-size
The needs of pipeline butt construction.
Utility model content
Therefore the utility model proposes a kind of novel pipeline internal clamps, exist for solving existing pipeline internal clamp
The problem of construction large labor intensity, low efficiency, group line up quality are difficult to ensure.
The technical solution of the utility model is achieved in that a kind of novel pipeline internal clamp, including the positioning of preceding tensioner
Mechanism, the coaxial fixed mechanism of rear tensioner, protective gas jet mechanism, tensioner logical control organ and power source, the preceding tensioner
Positioning mechanism and the coaxial fixed mechanism coaxial arrangement of rear tensioner, protective gas jet mechanism are set to the preceding tensioner positioning
Among mechanism and the coaxial fixed mechanism of rear tensioner, bottom in tensioning locating device, is used before the tensioner logical control organ is set to
In the control preceding tensioning locating device and the coaxial fixed mechanism of rear tensioner.
Further, after described the coaxial fixed mechanism of tensioner include cylinder body, Wedge-type piston rod, voussoir axis, voussoir top pawl,
Reset spring or homing position type air sac sealing, the voussoir axis are circumferentially uniformly provided with 4-8 voussoir top pawl, voussoir top pawl with
Wedge-type piston rod is cooperated by " T " slot, and it is recessed with position circular arc with one heart that one is offered on the voussoir top pawl excircle
Slot, the reset spring are set in arc groove.
Further, the preceding tensioning locating device distinguishes each a set of cylinder body with the coaxial fixed mechanism of rear tensioner, described
Cylinder body size is identical, and is provided with concentric connecting shaft between preceding tensioning locating device and the coaxial fixed mechanism of rear tensioner, and pass through
The high-intensitive connection of connecting shaft with one heart is integral, and oil inlet passage is provided in the concentric connecting shaft, and the oil inlet passage is stretched
Outside is provided with oil inlet and oil return mouth.
Further, the preceding tensioning locating device is identical as the coaxial fixed mechanism structure of rear tensioner, and is oppositely arranged.
Further, the oblique surface machining of the voussoir axis has on the number of surface groove and voussoir top pawl and the voussoir axis
The quantity of surface groove is corresponding.
Further, spring is provided in the tensioner logical control organ, the concentric connecting shaft protrudes into the tensioner
It is contacted in logical control organ with spring, is provided with sequential control spool and unidirectional sequence valve core in the concentric connecting shaft,
Sequential control spool setting in motion when spring is compressed pushes voussoir top pawl radially portion's spreading.
Further, protective gas jet mechanism includes air inlet and back protects copper bush, and carries on the back and protect copper bush setting
It positions voussoir top pawl and rear tensioner in preceding tensioner coaxially to fix between the pawl of voussoir top, the back is protected in copper bush outer-diameter ring and is provided with ring
Shape grooving is provided with a circle among the annular groove and intersects fumarole.
Further, the power source is hydraulic pressure pump group or high-pressure air source.
By above disclosure, the utility model has the following beneficial effects:
One, left and right welded pipe line is successively installed separately docking, and the size of expanding force can be adjusted by control valve, can be restored
Circularity, the unfitness of butt joint etc. for deforming nozzle, are rapidly completed counterpart, guarantee that welding reliably, and counterpart quality is high, operate easily side
Just；It greatly improves work efficiency, reduces engineering cost；
Two, independent copper pad welding back protection, can get the nozzle root base weldering of high quality, and back weld seam is flat
It is whole bright and clean；It is bonded when brass welds in order to prevent simultaneously, the annular that deep about 1mm or so is provided in the outer-diameter ring of brass is cut
Slot.And be provided with a circle among annular groove and intersect fumarole, use injecting protective gas；
Three, line-up clamp uses the corrosion-resistant air sac sealing circle mode of high heat resistance, forms closed guarantor with independent inlet channel
Air cavity system is protected, protective gas is provided for welding, can effectively prevent draught.And independent gas supply is used, protective gas can be made to spray
It penetrates uniformly, is needed especially suitable for welding such as multiple tube, stainless steel tubes, improve welding quality.
Detailed description of the invention
Fig. 1 is a kind of schematic view of the front view of novel pipeline internal clamp embodiment of the utility model.
Fig. 2 is a kind of overlooking structure diagram of novel pipeline internal clamp embodiment of the utility model.
Fig. 3 is the front view structure signal that a kind of novel pipeline internal clamp of the utility model fixes tensioner working condition with one heart
Figure.
Fig. 4 is the schematic cross-sectional view of A-A in Fig. 3.
Fig. 5 is a kind of schematic view of the front view of novel pipeline internal clamp locating tensioning working condition of the utility model.
Fig. 6 is the schematic cross-sectional view of B-B in Fig. 5.
Fig. 7 is the front view structure signal that a kind of novel pipeline internal clamp protective gas of the utility model sprays working condition
Figure.
Fig. 8 is the schematic cross-sectional view of C-C in Fig. 7.
Fig. 9 is a kind of schematic view of the front view of novel pipeline internal clamp recovery operation state of the utility model.
Figure 10 is the schematic cross-sectional view of D-D in Fig. 9.
Appended drawing reference is as follows:
The coaxial fixed mechanism 2 of preceding tensioning locating device 1, rear tensioner, cylinder body 21, Wedge-type piston rod 22, voussoir axis 23, wedge
Block top pawl 24, reset spring or homing position type air bag 25, protective gas jet mechanism 3, air inlet 31, back protect copper bush 32, tensioner
Logical control organ 4, concentric connecting shaft 5, oil inlet and oil return mouth 51.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative positional relationship, motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if
When the particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand
For its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment
Case can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution
Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model
Protection scope in.
The utility model proposes a kind of novel pipeline internal clamps.
The novel pipeline internal clamp adjusts jack-up method using the conical surface, that is, uses voussoir tensioner principle.
Fig. 1-10 is please referred to, specific structure includes including preceding tensioning locating device 1, the coaxial fixed mechanism 2 of rear tensioner, protects
Gas jet mechanism 3, tensioner logical control organ 4 are protected, preceding tensioning locating device 1 and the coaxial fixed mechanism 2 of rear tensioner are coaxially set
It sets, protective gas jet mechanism 3 is set among preceding tensioning locating device 1 and the coaxial fixed mechanism 2 of rear tensioner, tensioner logic control
Mechanism 4 processed is used for the coaxial fixed mechanism 2 of rear tensioner.
Coaxial 2 main components of fixed mechanism of tensioner include cylinder body 21, Wedge-type piston rod 22, voussoir top pawl 24, answer afterwards
Position spring or homing position type air sac sealing 25, Wedge-type piston rod 22 are circumferentially uniformly provided with 4-8 voussoir top pawl 24, voussoir top pawl
24 inclined-plane is tilted to the right, and the number of voussoir top pawl 24 is corresponding with the quantity of 22 ramp slot of Wedge-type piston rod, several wedges
Block top pawl 24 is combined, and can form a complete circle, a concentric same position is provided on 24 excircle of voussoir top pawl
Arc groove is equipped with reset spring in a groove, resets to push up pawl recycling.
Preceding tensioning locating device 1 distinguishes each a set of cylinder body 21,21 size phase of cylinder body with the coaxial fixed mechanism 2 of rear tensioner
Together, and then guarantee that the expanding force of front and back is consistent, compact-sized, preceding tensioning locating device 1 passes through with the coaxial fixed mechanism 2 of rear tensioner
The high-intensitive connection of connecting shaft 5 with one heart is integral, and same central axis requirement has been effectively ensured.
Preceding tensioning locating device 1 is identical as coaxial 2 structure of fixed mechanism of rear tensioner, and is oppositely arranged, including cylinder body 21, wedge
Block formula piston rod 22, voussoir top pawl 24, reset spring or homing position type air sac sealing 25, Wedge-type piston rod 22 are circumferentially uniformly set
There is 4-8 voussoir top pawl 24, the number of voussoir top pawl 24 is corresponding with the inclined-plane slot number on voussoir axis 23, in cylinder 21 and positioning
It is machined with arc groove on voussoir combination excircle, is equipped with reset spring in a groove, convenient for being resetted after the completion of the pawl work of top.
The oblique surface machining of voussoir axis 23 has the quantity of the number of surface groove and voussoir top pawl 24 Yu 23 ramp slot of voussoir axis
It is corresponding.
Spring is provided in tensioner logical control organ 4, concentric connecting shaft protrudes into tensioner logical control organ 4 and spring
It contacts, is provided with sequential control spool and unidirectional sequence valve core in concentric connecting shaft 5, sequential control spool is compressed in spring
When setting in motion, push the radially portion's spreading of voussoir top pawl 24.
Protective gas jet mechanism 3 includes air inlet 31 and back protects copper bush 32, and carries on the back to protect before copper bush 32 is set to and rise
Tightening position voussoir top pawl 24 and rear tensioner are coaxially fixed between voussoir top pawl 24, are provided with annular on the outer 32 diameter rings of back guarantor's copper bush and are cut
Slot is provided with a circle among annular groove and intersects fumarole.
In the present embodiment, when fixed tensioner piston and locating tensioning piston fully open with one heart, the pressure value of input is to make
With the tensioner pressure set when starting.
The coaxial fixed mechanism 2 of preceding tensioning locating device 1, rear tensioner and protective gas jet mechanism 3 use high heat resistance corrosion resistant
Air sac sealing circle mode is lost, forms closed protection air cavity system with independent inlet channel.
Power source is hydraulic pressure pump group or high-pressure air source.
Working principle of the utility model is:
Pipeline internal clamp uses hydraulic or air pressure for driving force, and driving Wedge-type piston rod 22 rises with dynamic voussoir top pawl 24
Tightly.When 21 rodless cavity oil inlet of cylinder body, pressure pushes Wedge-type piston rod 22 to move together with dynamic voussoir top pawl 24, to push
The radially portion's spreading of voussoir top pawl 24.
It can be set as required according to caliber, wall thickness size when input pressure reaches the pressure value of setting, before acting on
Power on 1 Wedge-type piston rod 22 of tensioning locating device can be such that locating tensioning voussoir top pawl 24 is bonded completely with tube wall securely,
Line-up clamp can be fixed on docking pipeline by the power enough, but pressure at this time also is not enough to overcome the thrust of spring, with one heart
Fixed tensioner voussoir top pawl 24 will not generate movement.
The pipeline for needing butt welding is assembled to scheduled position, continues to pressurize to line-up clamp, overcomes bullet when pressure reaches
When pressure reaches the cracking pressure value of setting when spring force, spring starts to be compressed, sequence logical control works fine spool setting in motion, with
Pressure increase, sequential control spool through hole road start coaxial 2 Wedge-type piston rod of fixed mechanism, 22 rodless cavity of tensioner backward and supply
Oil, and then push the radially portion's spreading of voussoir top pawl 24.
As pressure further increases, unidirectional sequence valve core is fully opened, coaxial fixed tensioner piston driving voussoir
Axis 23 continues to move, and is close to securely until the complete spreading of voussoir top pawl 24, and with pipeline, when input pressure reaches setup pressure value
When, the thrust acted on fixed tensioner piston area with one heart is equal with the thrust acted on locating tensioning piston area.
When external pressure unloading, voussoir top pawl 24 makes two Wedge-types in the case where reset spring or homing position type air bag 25 act on
Piston rod 22 is relatively distant from voussoir top pawl 24, and voussoir top pawl 24,22 axis of Wedge-type piston rod gradually retract original position.
The utility model is comprehensively compared in tube group butt welding with original technology, and there are many innovation point, these skills
Art innovative point can't at home and abroad be realized in similar line-up clamp simultaneously substantially, so playing thing in tube group butt welding
The effect of half function times.
Innovation point 1:
Left and right welded pipe line is successively installed separately docking, and the size of expanding force can be adjusted by control valve, can restore to become
Circularity, unfitness of butt joint of shape nozzle etc., are rapidly completed counterpart, guarantee that welding reliably, and counterpart quality is high, operate easily side
Just；It greatly improves work efficiency, reduces engineering cost；
Innovation point 2:
Minimum is able to satisfy 1.5D turning radius demand, is particularly adapted to the construction of pipe station；
Innovation point 3:
Independent copper pad welding back protection can get the nozzle root base weldering of high quality, back smooth welded seam
It is bright and clean；It is bonded when brass welds in order to prevent simultaneously, the annular that deep about 1mm or so is provided in the outer-diameter ring of brass is cut
Slot.And a circle fumarole is provided among annular groove, use injecting protective gas.
Innovation point 4:
Line-up clamp uses the corrosion-resistant air sac sealing circle mode of high heat resistance, forms closed protection gas with independent inlet channel
Chamber system provides protective gas for welding, can effectively prevent draught, and use independent gas supply, and protective gas injection can be made equal
It is even, it is needed especially suitable for welding such as multiple tube, stainless steel tubes, improves welding quality.
The utility model is compared with traditional line-up clamp, 1/4 of weight less than traditional internal clamp, easy to use and flexible, behaviour
Make simply, and use modularized design, is able to satisfy different configuration needs.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (8)
1. a kind of novel pipeline internal clamp, it is characterised in that: including preceding tensioning locating device, the coaxial fixed mechanism of rear tensioner,
Protective gas jet mechanism, tensioner logical control organ and power source, the preceding tensioning locating device and rear tensioner are coaxially fixed
Mechanism coaxial arrangement, protective gas jet mechanism are set to the preceding tensioning locating device and the coaxial fixed mechanism of rear tensioner
Centre, bottom in tensioning locating device before the tensioner logical control organ is set to, for controlling the preceding tensioning locating device
With the coaxial fixed mechanism of rear tensioner.
2. a kind of novel pipeline internal clamp according to claim 1, it is characterised in that: tensioner coaxially fixes machine after described
Structure includes cylinder body, Wedge-type piston rod, voussoir axis, voussoir top pawl, reset spring or homing position type air sac sealing, voussoir axis edge
Even circumferential is equipped with 4-8 voussoir top pawl, voussoir top pawl and Wedge-type piston rod and is cooperated by " T " slot, described
One is offered on the pawl excircle of voussoir top with one heart with position arc groove, the reset spring is set in arc groove.
3. a kind of novel pipeline internal clamp according to claim 2, it is characterised in that: the preceding tensioning locating device with
The coaxial fixed mechanism of tensioner distinguishes each a set of cylinder body afterwards, and the cylinder body size is identical, and preceding tensioning locating device and rear tensioner
It is coaxially provided with concentric connecting shaft between fixed mechanism, and is integral by the high-intensitive connection of connecting shaft with one heart, it is described concentric
Oil inlet passage is provided in connecting shaft, and the oil inlet passage stretches to outside and is provided with oil inlet and oil return mouth.
4. a kind of novel pipeline internal clamp according to claim 3, it is characterised in that: the preceding tensioning locating device with
The coaxial fixed mechanism structure of tensioner is identical afterwards, and is oppositely arranged.
5. a kind of novel pipeline internal clamp according to claim 4, it is characterised in that: the oblique surface machining of the voussoir axis
There is the number of surface groove and voussoir top pawl corresponding with the quantity of the voussoir axis ramp slot.
6. a kind of novel pipeline internal clamp according to claim 5, it is characterised in that: the tensioner logical control organ
It is inside provided with spring, the concentric connecting shaft is protruded into the tensioner logical control organ and contacted with spring, the concentric connection
Sequential control spool and unidirectional sequence valve core are provided in axis, the sequential control spool starts to transport when spring is compressed
It is dynamic, push voussoir top pawl radially portion's spreading.
7. a kind of novel pipeline internal clamp according to claim 6, it is characterised in that: protective gas jet mechanism
Copper bush is protected including air inlet and back, and carries on the back guarantor's copper bush and is set to preceding tensioner positioning voussoir top pawl and the coaxial fixed wedge of rear tensioner
Between the pawl of block top, the back is protected in copper bush outer-diameter ring and is provided with annular grooving, and a circle is provided among the annular groove and intersects jet
Hole.
8. a kind of novel pipeline internal clamp according to claim 1, it is characterised in that: the power source is hydraulic pressure pump group
Or high-pressure air source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820984894.6U CN208513896U (en) | 2018-06-26 | 2018-06-26 | A kind of novel pipeline internal clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820984894.6U CN208513896U (en) | 2018-06-26 | 2018-06-26 | A kind of novel pipeline internal clamp |
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| Publication Number | Publication Date |
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| CN208513896U true CN208513896U (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820984894.6U Active CN208513896U (en) | 2018-06-26 | 2018-06-26 | A kind of novel pipeline internal clamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568626A (en) * | 2018-06-26 | 2018-09-25 | 四川艾普耐斯油气工程服务有限公司 | A kind of novel pipeline internal clamp |
| CN110900025A (en) * | 2019-10-30 | 2020-03-24 | 中国化学工程第六建设有限公司 | Welding process of hydrogen sulfide resistant pipeline |
-
2018
- 2018-06-26 CN CN201820984894.6U patent/CN208513896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568626A (en) * | 2018-06-26 | 2018-09-25 | 四川艾普耐斯油气工程服务有限公司 | A kind of novel pipeline internal clamp |
| CN110900025A (en) * | 2019-10-30 | 2020-03-24 | 中国化学工程第六建设有限公司 | Welding process of hydrogen sulfide resistant pipeline |
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