CN212540231U - Experimental device for traction elbow release and traction pipeline magnetic flux leakage detector - Google Patents
Experimental device for traction elbow release and traction pipeline magnetic flux leakage detector Download PDFInfo
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- CN212540231U CN212540231U CN202022174397.XU CN202022174397U CN212540231U CN 212540231 U CN212540231 U CN 212540231U CN 202022174397 U CN202022174397 U CN 202022174397U CN 212540231 U CN212540231 U CN 212540231U
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Abstract
The application discloses a traction elbow tripper and an experimental device for a traction pipeline magnetic flux leakage detector, which comprise a frame arranged at the outer side of an elbow, a first rotating arm, a second rotating arm and a pulley assembly, wherein the first rotating arm and the second rotating arm are rotatably connected with the frame; the steel wire rope is provided with an extrusion piece, and the extrusion piece stretches into the first through hole and can extrude the first rotating arm and the second rotating arm to separate the first rotating arm from the second rotating arm. The pulley assembly is separated from the first rotating arm or the second rotating arm, the steel wire rope falls off from the pulley assembly, and the steel wire rope cannot deviate from a central line when passing through the elbow, so that the pulling rope and the advancing direction of the equipment are kept at a reasonable angle.
Description
Technical Field
The application relates to the technical field of in-pipeline detector experimental equipment, and more particularly relates to a traction elbow tripper and a traction pipeline magnetic flux leakage detector experimental device.
Background
In the experiment of the magnetic flux leakage detector of the traction pipeline, a steel wire rope on a winch needs to pass through pipeline traction equipment, and the pipeline is welded together by a straight steel pipe and an elbow, so that in the traction process, when the steel wire rope passes through the elbow, the steel wire rope deviates from the central line of the elbow and rubs with the pipe wall of the bending inner diameter of the elbow to increase the resistance, thereby damaging the elbow and the steel wire rope; when the equipment passes through the bend in the pipe bend traction experiment, the included angle between the advancing direction and the stress direction is gradually increased, after the included angle is increased to a certain angle, the resistance of the equipment in the pipe is increased, and when the advancing pulling force of the equipment is smaller than the resistance of the equipment in the pipe, the equipment loses the advancing force, so that the equipment is blocked at the bend part of the pipe, and the bend traction experiment cannot be completed.
Therefore, how to solve the problems that in the experiment of pulling the pipeline magnetic flux leakage detector, the steel wire rope deviates from the central line of the elbow when passing through the elbow and generates friction with the inner diameter pipe wall of the elbow, so that the elbow and the steel wire rope are damaged, and when the included angle between the advancing direction and the stress direction is increased to a certain angle, the advancing traction force of the equipment is smaller than the resistance of the equipment in the pipeline, so that the equipment loses the advancing force, so that the equipment is blocked at the elbow part of the pipeline, is a key technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems existing in the related technology to a certain extent at least, the application aims to provide a traction elbow release and an experimental device of a traction pipeline magnetic flux leakage detector, which can solve the problems that in the experiment of the traction pipeline magnetic flux leakage detector, a steel wire rope can deviate from the central line of an elbow to generate friction with the inner diameter pipe wall of the elbow when passing through the elbow, so that the elbow and the steel wire rope are damaged, and when the included angle between the advancing direction and the stress direction is increased to a certain angle, the advancing traction force of equipment is smaller than the resistance of the equipment in the pipeline, so that the equipment loses the advancing force and the equipment is blocked at the elbow part of the pipeline.
The application provides a traction elbow release, which comprises a frame arranged outside an elbow, a first rotating arm and a second rotating arm which are rotatably connected to the frame, and a pulley assembly used for supporting a steel wire rope, wherein the first end of the pulley assembly is fixedly connected to one of the first rotating arm and the second rotating arm, and the second end of the pulley assembly is detachably connected to the other one of the first rotating arm and the second rotating arm; be provided with the extruded article on the wire rope, the extruded article can stretch into in the first through-hole, and can extrude first swinging boom with the second swinging boom so that first swinging boom with the second swinging boom atress separation.
Preferably, first swinging boom is including first connecting portion, the second swinging boom including with the second connecting portion that the connection can be dismantled to first connecting portion, be provided with first half taper hole on the first connecting portion, be provided with the half taper hole of second on the second connecting portion, first half taper hole with the butt joint of second half taper hole forms first through-hole, the diameter of first through-hole is followed to be close to pulley assembly's direction reduces gradually, just the extruded piece is toper expansion pin, the diameter of toper expansion pin is followed to be close to pulley assembly's direction reduces gradually, the maximum diameter of toper expansion pin is greater than the maximum diameter of first through-hole.
Preferably, still including being used for driving first swinging boom is kept away from the first extension spring of second swinging boom and being used for driving the second swinging boom is kept away from the second extension spring of first swinging boom, the equal fixed connection of first end of first extension spring and the first end of second extension spring is in on the frame, the second end fixed connection of first extension spring is in first connecting portion is kept away from one side of second connecting portion, the second end fixed connection of second extension spring is in second connecting portion is kept away from one side of first connecting portion.
Preferably, a first end of the pulley assembly is fixedly disposed on the first rotating arm, and a second end of the pulley assembly is detachably disposed on the second rotating arm.
Preferably, the pulley assembly includes a support shaft having a first end fixedly connected to the first rotating arm and a pulley rotatably disposed on the support shaft, the second rotating arm is provided with a second through hole for the second end of the support shaft to extend into, and the second through hole is coaxial with the support shaft.
Preferably, the bottom of one end of the first through hole close to the pulley is flush with the bottom of the support groove of the pulley.
Preferably, the first connecting portion and the second connecting portion are detachably connected by a snap assembly.
Preferably, the joint subassembly is including setting up joint portion and setting on the first connecting portion are in movable part on the second connecting portion, be provided with on the second connecting portion and be used for holding the fourth through-hole of movable part, the movable part is including fixed the setting end cap in the fourth through-hole, block the pearl and be used for connecting the end cap with the elastic component of card pearl, be provided with the arch on the lateral wall of joint portion, just block the pearl can protrusion in the fourth through-hole with protruding looks joint.
Preferably, first connecting portion are kept away from be provided with first extension spring pillar on one side of second connecting portion, second connecting portion are kept away from be provided with second extension spring pillar on one side of first connecting portion, the second end fixed connection of first extension spring is in on the first extension spring pillar, the second end fixed connection of second extension spring is in on the second extension spring pillar.
The application also provides an experimental device of the tractive pipeline magnetic flux leakage detector, which comprises a pipeline, the pipeline magnetic flux leakage detector, a steel wire rope for tractive the pipeline magnetic flux leakage detector, a winch for tractive the steel wire rope, and a plurality of tractive elbow releases, the pulling elbow release is any one of the pulling elbow releases, the pipeline comprises a straight pipeline and an elbow connected with the straight pipeline, the outer side wall of the elbow is provided with a gap for the steel wire rope to pass through, the extension direction of the gap is consistent with that of the elbow, a plurality of drawing elbow releases are uniformly arranged along the gap, be provided with on the wire rope the extruded article, the extruded article is close to the setting of pipeline magnetic leakage detector, just the extruded article can pass a plurality ofly in proper order the first through-hole of tractive elbow release.
The technical scheme provided by the application can comprise the following beneficial effects:
the application provides a tractive elbow release and tractive pipeline magnetic leakage detector experimental apparatus, which comprises a frame, first swinging boom, the second swinging boom with be used for supporting wire rope's loose pulley assembly, the frame sets up in the elbow outside, first swinging boom and second swinging boom all rotationally connect on the frame, loose pulley assembly's first end and one of them fixed connection of first swinging boom and second swinging boom, loose pulley assembly's second end is connected with another detachably, and like this, can make loose pulley assembly rotate along with first swinging boom or second swinging boom, so that wire rope drops from loose pulley assembly. First swinging boom and second swinging boom detachably connect to the junction of first swinging boom and second swinging boom is provided with first through-hole, and for wire rope to pass, first through-hole setting is at loose pulley assembly's rear end, and wire rope can fall on loose pulley assembly after wearing out in the first through-hole, so that loose pulley assembly can play the supporting role to wire rope. The steel wire rope is provided with the extrusion part, the extrusion part can extend into the first through hole and can extrude the first rotating arm and the second rotating arm, so that the first rotating arm and the second rotating arm are separated under the action of force, one of the first rotating arm and the second rotating arm drives the pulley assembly to move, the pulley assembly is separated from the first rotating arm or the second rotating arm, the steel wire rope can fall off from the pulley assembly, and the steel wire rope can move forwards along the elbow. Therefore, when the steel wire rope passes through the elbow, the steel wire rope cannot deviate from the central line of the elbow due to the supporting effect of the pulley assembly of the pulling elbow release, so that the steel wire rope cannot be damaged due to friction with the pipe wall of the bending inner diameter of the elbow; when equipment passes through the bend in pipeline bend tractive experiment, the contained angle of direction of advance and atress direction grow gradually, and after the contained angle increased certain angle, when the tractive force that equipment gos forward was greater than the resistance of equipment in the pipeline, equipment can not have lost the power of advancing to can not cause the equipment card to block up the elbow position condition at the pipeline, can accomplish the bend tractive experiment.
So set up, solved in the experiment of tractive pipeline magnetic leakage detector wire rope can deviate from elbow central line and elbow internal diameter pipe wall when the elbow produces the friction and causes elbow and wire rope to appear damaging and when the contained angle of direction of advance and direction of force bearing increases to certain angle after equipment traction force that advances is less than the equipment and causes equipment to lose the power that advances and cause the equipment card to block up at pipeline elbow part when the resistance in the pipeline.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a front view of the present pulling elbow trip, according to some exemplary embodiments;
fig. 2 is a side view of the present pulling elbow trip unit, according to some exemplary embodiments;
FIG. 3 is a front view showing a first rotating arm and a second rotating arm connected according to some exemplary embodiments;
fig. 4 is a bottom view of the first and second rotating arms shown connected according to some exemplary embodiments;
fig. 5 is a perspective view of a first rotating arm shown in accordance with some exemplary embodiments;
fig. 6 is a perspective view of a second rotating arm shown in accordance with some exemplary embodiments;
fig. 7 is a front view of a first rotating arm shown in accordance with some exemplary embodiments;
FIG. 8 is a cross-sectional view B-B of FIG. 3;
fig. 9 is a front view of a second rotating arm shown in accordance with some exemplary embodiments;
fig. 10 is a side view of a first rotating arm shown in accordance with some exemplary embodiments;
fig. 11 is a side view of a second rotating arm shown in accordance with some exemplary embodiments;
fig. 12 is a diagram illustrating the positional relationship of the present pulling elbow release to an elbow, according to some exemplary embodiments.
In the figure:
1. a frame; 2. fixing the rod; 3. a first rotating arm; 4. a second rotating arm; 5. a pulley; 6. a first tension spring; 7. a second tension spring; 8. a tapered expansion pin; 9. a first connection portion; 10. a second connecting portion; 11. a first half-cone hole; 12. a second half-cone hole; 13. a plug; 14. clamping the beads; 15. an elastic member; 16. a protrusion; 17. a second through hole; 18. a third through hole; 19. a first through hole; 20. a fourth via hole; 21. a wire rope; 22. and (4) bending the pipe.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.
Referring to fig. 1 to 12, the present embodiment provides a pulling elbow release, including a frame 1, a first rotating arm 3, a second rotating arm 4, and a pulley assembly for supporting a steel wire rope 21, where the frame 1 is disposed outside an elbow 22, and both the first rotating arm 3 and the second rotating arm 4 are rotatably connected to the frame 1, where a first end of the pulley assembly is fixedly connected to one of the first rotating arm 3 and the second rotating arm 4, and a second end of the pulley assembly is detachably connected to the other of the first rotating arm 3 and the second rotating arm 4, that is, the first end of the pulley assembly may be connected to the first rotating arm 3, and the second end of the pulley assembly may be detachably connected to the second rotating arm 4, or the first end of the pulley assembly may be connected to the second rotating arm 4, and the second end of the pulley assembly may be detachably connected to the. Thus, the pulley assembly can rotate along with the first rotating arm 3 or the second rotating arm 4, so that the steel wire rope 21 can fall off from the pulley assembly.
Note that the outer side here means a side away from the center of the bend of the elbow 22.
First swinging boom 3 and second swinging boom 4 detachably connect to the junction of first swinging boom 3 and second swinging boom 4 is provided with first through-hole 19, in order to supply wire rope 21 to pass, first through-hole 19 sets up the rear end at pulley assembly, pulley assembly's rear end is the one end that wire rope 21 removed dorsad, and like this, wire rope 21 can fall on pulley assembly after wearing out in first through-hole 19, so that pulley assembly can play the supporting role to wire rope 21.
An extrusion part is arranged on the steel wire rope 21 and can extend into the first through hole 19 and extrude the first rotating arm 3 and the second rotating arm 4, so that the first rotating arm 3 and the second rotating arm 4 are separated under stress, namely the first rotating arm 3 and the second rotating arm 4 rotate oppositely after being extruded by the extrusion part, one of the first rotating arm 3 and the second rotating arm 4 drives the pulley component to move, the pulley component is separated from the first rotating arm 3 or the second rotating arm 4, so that the steel wire rope 21 can fall off from the pulley component, and the steel wire rope 21 can move forwards along an elbow. Therefore, when the steel wire rope 21 passes through the elbow 22, the steel wire rope cannot deviate from the central line of the elbow 22 due to the supporting effect of the pulley assembly of the pulling elbow release, so that the steel wire rope cannot be rubbed with the pipe wall of the bent inner diameter of the elbow 22 to cause damage to the elbow 22 and the steel wire rope 21; so that the elbow 22 and the steel wire rope 21 are not damaged due to friction with the pipe wall with the bent inner diameter of the elbow 22; when equipment passes through the bend in pipeline bend tractive experiment, the contained angle of direction of advance and atress direction grow gradually, and after the contained angle increased certain angle, when the tractive force that equipment gos forward was greater than the resistance of equipment in the pipeline, equipment can not have lost the power of advancing to can not cause the equipment card to block up the elbow position condition at the pipeline, can accomplish the bend tractive experiment.
By the arrangement, the problem that the equipment is blocked at the elbow part of the pipeline due to the fact that the equipment loses the forward traction force when the included angle between the forward direction and the stress direction is increased to a certain angle and the forward traction force of the equipment is smaller than the resistance of the equipment in the pipeline when the forward traction force of the equipment is smaller than the resistance of the equipment in the pipeline due to the fact that the steel wire rope 21 deviates from the central line of the elbow 22 and generates friction with the inner diameter pipe wall of the elbow 22 when passing through the elbow 22 in an experiment of the magnetic flux leakage detector of the traction.
In this embodiment, as shown in fig. 7 and 9, the first rotating arm 3 includes a first connecting portion 9, the second rotating arm 4 includes a second connecting portion 10, and the first connecting portion 9 and the second connecting portion 10 are detachably connected, so that the first rotating arm 3 and the second rotating arm 4 are detachably connected, and in the pulling process, the first rotating arm 3 and the second rotating arm 4 are separated by a force.
As shown in fig. 7, the first half-tapered hole 11 is provided in the first connecting portion 9, and as shown in fig. 8, the second half-tapered hole 12 is provided in the second connecting portion 10, and the first half-tapered hole 11 and the second half-tapered hole 12 are butted to form a first through hole 19. The diameter of the first through hole 19 is gradually reduced in a direction approaching the sheave assembly, that is, the diameter of the first through hole 19 is gradually reduced in a direction in which the wire rope 21 moves; wherein, as shown in fig. 2, the extrusion member may be a tapered expansion pin 8, and the diameter of the tapered expansion pin 8 is gradually reduced in a direction approaching the pulley assembly, that is, in a direction moving along the wire rope 21, so that the extrusion member can be inserted into the first through hole 19.
Also, the maximum diameter of the tapered expansion pin 8 is greater than the maximum diameter of the first through hole 19 so that the tapered expansion pin 8 can separate the first connection part 9 and the second connection part 10 even if the first rotating arm 3 and the second rotating arm 4 are separated, thereby enabling the wire rope 21 to be detached from the pulley assembly.
Preferably, this tractive elbow release still includes first extension spring 6 and second extension spring 7, and first extension spring 6 is used for driving first swinging boom 3 and keeps away from second swinging boom 4, and second extension spring 7 is used for driving second swinging boom 4 and keeps away from first swinging boom 3.
Specifically, as shown in fig. 1, a first end of the first extension spring 6 and a first end of the second extension spring 7 are both fixedly connected to the frame 1, a second end of the first extension spring 6 is fixedly connected to a side of the first connecting portion 9 away from the second connecting portion 10, and a second end of the second extension spring 7 is fixedly connected to a side of the second connecting portion 10 away from the first connection. Thus, when the extrusion part extrudes the first connecting part 9 and the second connecting part 10 to separate the two parts, the first tension spring 6 pulls the first rotating arm 3 to rotate towards the direction far away from the second rotating arm 4, and the second tension spring 7 pulls the second rotating arm 4 to rotate towards the direction far away from the first rotating arm 3, so that the pulley component rotates along with one of the two parts and is separated from the other part, and the steel wire rope 21 is more easily separated from the pulley component.
It should be noted that, the frame 1 is fixed on the ground or other supporting platforms, the frame 1 includes a square frame and four supporting rods for supporting the square frame, and the four supporting rods are fixedly connected at four corners of the square frame. Wherein, the pulley assembly is located in the middle of the frame 1 and directly above the gap of the elbow 22, and the first end of the first tension spring 6 and the second end of the second tension spring 7 are respectively connected to the left side and the right side of the square frame, so as to pull the first rotating arm 3 and the second rotating arm 4.
A first tension spring support is arranged on one side, far away from the second connecting portion 10, of the first connecting portion 9, a second tension spring support is arranged on one side, far away from the first connecting portion 9, of the second connecting portion 10, the second end of the first tension spring 6 is fixedly connected to the first tension spring support, and the second end of the second tension spring 7 is fixedly connected to the second tension spring support.
In one embodiment, a first end of the pulley assembly is fixedly disposed on the first rotating arm 3, and a second end of the pulley assembly is detachably disposed on the second rotating arm 4.
The pulley assembly comprises a supporting shaft and a pulley 5, wherein one end of the supporting shaft is fixedly connected to the first rotating arm 3, the pulley 5 is rotatably arranged on the supporting shaft, and the pulley 5 can be rotatably connected to the supporting shaft through a bearing. As shown in fig. 6, a second through hole 17 is formed in the second rotating arm 4, and the second through hole 17 is coaxially disposed with the support shaft so as to allow the second end of the support shaft to extend into the second through hole, so that the pulley assembly and the second rotating arm 4 form a detachable connection.
It should be noted that the diameter of the second through hole 17 is larger than or equal to the diameter of the second end of the support shaft, so that the second end of the support shaft can be inserted and removed conveniently.
Specifically, as shown in fig. 5, a third through hole 18 is provided on the first rotating arm 3 for the first end of the supporting shaft to pass through, and an external thread is provided on a side wall of the first end of the supporting shaft, and the pulley assembly further includes a nut matched with the external thread to fix the supporting shaft on the first rotating arm 3.
In order to avoid axial movement of the pulley 5 with the support shaft, a lock nut is provided on the side of the bearing adjacent the second end of the support shaft.
Preferably, the bottom of the end of the first through hole 19 close to the pulley 5 is flush with the bottom of the supporting groove of the pulley 5, so that the steel wire rope 21 passes through the first through hole 19 and falls into the supporting groove of the pulley 5.
Of course, the first through hole 19 may be higher than the support groove of the pulley 5 or lower than the support groove of the pulley 5, and the vertical position of the first through hole 19 is not particularly limited.
In this embodiment, the first connecting portion 9 and the second connecting portion 10 are detachably connected by a snap assembly.
As shown in fig. 6 and 8, the clip assembly includes a clip portion disposed on the first connecting portion 9 and a movable portion disposed on the second connecting portion 10. A fourth through hole 20 is provided on the second connection portion 10 for accommodating the movable portion. Wherein, the movable part is including end cap 13, card pearl 14 and elastic component 15, and end cap 13 is fixed to be set up in fourth through hole 20, and end cap 13 and card pearl 14 are connected respectively to the both ends of elastic component 15 to, card pearl 14 can bulge and cooperate with joint portion in fourth through hole 20. The clamping portion is provided with a protrusion 16, and the clamping bead 14 protrudes out of the fourth through hole 20 and can be clamped with the protrusion 16, so that the first connecting portion 9 and the second connecting portion 10 are connected. Here, the elastic member 15 may be a spring.
Specifically, the joint subassembly is provided with two movable parts, and be provided with two fourth through holes 20 on the second connecting portion 10, two fourth through holes 20 are used for holding two movable parts respectively, all be provided with protruding 16 in the both sides of joint portion, two fourth through holes 20 are located the both sides of joint portion respectively, two card pearls 14 homoenergetic protrusion in fourth through hole 20 and two protruding 16 joints, and like this, can improve the joint ability of joint subassembly, thereby improve the steadiness that first connecting portion 9 and second connecting portion 10 are connected.
In this embodiment, the first rotating arm 3 and the second rotating arm 4 are both connected to the frame 1 through the fixing rods 2, the first ends of the two fixing rods 2 and the frame 1 are of an integrated structure, and the first rotating arm 3 and the second rotating arm 4 are rotatably connected to the second ends of the two fixing rods 2 through the pin shaft.
The specific embodiment further provides an experimental device for the magnetic flux leakage detector of the traction pipeline, which comprises a pipeline, the magnetic flux leakage detector of the pipeline, a steel wire rope 21 used for the magnetic flux leakage detector of the traction pipeline, a winch used for pulling the steel wire rope 21 and a plurality of traction elbow releases, wherein each traction elbow release is the traction elbow release in any one of the embodiments.
Wherein, the pipeline is including straight pipeline and elbow 22, elbow 22's lateral wall is provided with the gap that supplies wire rope 21 to pass, the extending direction in gap is unanimous with elbow 22's extending direction, the length in gap is the same with elbow 22's length, a plurality of tractive elbow trippers evenly set up along the gap, and be provided with the extruded article on the wire rope 21, the extruded article is close to the setting of pipeline magnetic leakage detector, in the tractive process, as shown in fig. 12, wire rope 21 can drive the extruded article and pass the first through-hole 19 of a plurality of tractive elbow trippers in proper order, so that wire rope 21 drops from a plurality of elbow 22 trippers in proper order, thereby guarantee the pipeline magnetic leakage detector of wire rope 21 tractive and move along elbow 22 central lines. The problem that the elbow 22 and the steel wire rope 21 are damaged due to the fact that the steel wire rope 21 deviates from a central line and rubs with the pipe wall of the bending inner diameter of the elbow 22 when the steel wire rope 21 passes through the elbow 22 can be solved well through the traction elbow release, and meanwhile, the problem that when equipment passes through a curve in a pipeline curve traction experiment, the included angle between the advancing direction and the stress direction is gradually enlarged, after the included angle is enlarged to a certain angle, the advancing traction force of the equipment is smaller than the resistance of the equipment in the pipeline, the equipment loses the advancing force, so that the equipment is blocked at the elbow part of the pipeline, and the curve traction experiment cannot be completed is solved.
Here, the width of the slit is larger than the maximum diameter of the extrusion to enable the extrusion to pass through the slit.
It should be noted that the number of the pulling elbow trips may be determined according to the caliber of the pipeline, and here, the number of the pulling elbow trips is not specifically limited, and may be specifically determined according to actual needs.
It should be noted that the terms "first," "second," "third," "fourth," and the like, as used herein, are not intended to limit the specific order, but merely to distinguish one element or function from another.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
Although embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present application.
Claims (10)
1. A drawing elbow release is characterized by comprising a frame (1) arranged outside an elbow (22), a first rotating arm (3) and a second rotating arm (4) which are rotatably connected on the frame (1), and a pulley component for supporting a steel wire rope (21), the first end of the pulley component is fixedly connected to one of the first rotating arm (3) and the second rotating arm (4), the second end of the pulley component is detachably connected to the other one, the first rotating arm (3) and the second rotating arm (4) are detachably connected, and a first through hole (19) for the steel wire rope (21) to pass through is arranged at the joint of the first rotating arm (3) and the second rotating arm (4), the first through hole (19) is formed in the rear end of the pulley assembly, so that the steel wire rope (21) can fall on the pulley assembly after penetrating out of the first through hole (19); be provided with the extruded article on wire rope (21), the extruded article can stretch into in first through-hole (19) and can extrude first swinging boom (3) with second swinging boom (4) so that first swinging boom (3) with second swinging boom (4) atress separation.
2. The pulling bend release of claim 1, wherein the first rotating arm (3) comprises a first connection (9), the second rotating arm (4) comprises a second connecting part (10) detachably connected with the first connecting part (9), a first half taper hole (11) is arranged on the first connecting part (9), a second half taper hole (12) is arranged on the second connecting part (10), the first half taper hole (11) and the second half taper hole (12) are butted to form the first through hole (19), the diameter of the first through hole (19) is gradually reduced along the direction approaching the pulley assembly, and the extrusion is a conical expansion pin (8), the diameter of the conical expansion pin (8) is gradually reduced along the direction close to the pulley assembly, the maximum diameter of the conical expansion pin (8) is greater than the maximum diameter of the first through hole (19).
3. The pulling elbow release device according to claim 2, further comprising a first tension spring (6) for driving the first rotating arm (3) to be away from the second rotating arm (4) and a second tension spring (7) for driving the second rotating arm (4) to be away from the first rotating arm (3), wherein a first end of the first tension spring (6) and a first end of the second tension spring (7) are both fixedly connected to the frame (1), a second end of the first tension spring (6) is fixedly connected to one side of the first connecting portion (9) away from the second connecting portion (10), and a second end of the second tension spring (7) is fixedly connected to one side of the second connecting portion (10) away from the first connecting portion (9).
4. The pulling elbow release of claim 1, wherein a first end of the pulley assembly is fixedly disposed on the first rotating arm (3) and a second end of the pulley assembly is detachably disposed on the second rotating arm (4).
5. A pulling elbow release according to claim 4, wherein the pulley assembly comprises a supporting shaft with a first end fixedly connected to the first rotating arm (3) and a pulley (5) rotatably arranged on the supporting shaft, the second rotating arm (4) is provided with a second through hole (17) for the second end of the supporting shaft to extend into, and the second through hole (17) is coaxially arranged with the supporting shaft.
6. The pulling elbow release according to claim 5, characterized in that the bottom of the end of the first through hole (19) close to the pulley (5) is flush with the bottom of the supporting groove of the pulley (5).
7. The pulling bend release of claim 2, wherein the first connection portion (9) and the second connection portion (10) are detachably connected by a snap-fit assembly.
8. The pulling elbow release as defined in claim 7, wherein the clamping assembly comprises a clamping portion arranged on the first connecting portion (9) and a movable portion arranged on the second connecting portion (10), the second connecting portion (10) is provided with a fourth through hole (20) for accommodating the movable portion, the movable portion comprises a plug (13) fixedly arranged in the fourth through hole (20), a clamping bead (14) and an elastic member (15) for connecting the plug (13) and the clamping bead (14), a protrusion (16) is arranged on a side wall of the clamping portion, and the clamping bead (14) can protrude from the fourth through hole (20) and is clamped with the protrusion (16).
9. The pulling elbow release according to claim 3, wherein a first tension spring support is provided on a side of the first connecting portion (9) remote from the second connecting portion (10), a second tension spring support is provided on a side of the second connecting portion (10) remote from the first connecting portion (9), a second end of the first tension spring (6) is fixedly connected to the first tension spring support, and a second end of the second tension spring (7) is fixedly connected to the second tension spring support.
10. An experimental device of a magnetic flux leakage detector of a traction pipeline comprises a pipeline, a magnetic flux leakage detector of the pipeline, a steel wire rope (21) for drawing the magnetic flux leakage detector of the pipeline and a winch for drawing the steel wire rope (21), and is characterized by further comprising a plurality of traction elbow releases, wherein the traction elbow releases are the traction elbow releases according to any one of claims 1 to 9, the pipeline comprises a straight pipeline and an elbow (22) connected with the straight pipeline, the outer side wall of the elbow (22) is provided with a gap for the steel wire rope (21) to pass through, the extending direction of the gap is consistent with the extending direction of the elbow (22), the traction elbow releases are uniformly arranged along the gap, the steel wire rope (21) is provided with an extrusion piece, and the extrusion piece is close to the magnetic flux leakage detector of the pipeline, and the pressing piece can sequentially pass through the first through holes (19) of a plurality of the pulling elbow releases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022174397.XU CN212540231U (en) | 2020-09-28 | 2020-09-28 | Experimental device for traction elbow release and traction pipeline magnetic flux leakage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112083060A (en) * | 2020-09-28 | 2020-12-15 | 李冰梅 | Experimental device for traction elbow release and traction pipeline magnetic flux leakage detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112083060A (en) * | 2020-09-28 | 2020-12-15 | 李冰梅 | Experimental device for traction elbow release and traction pipeline magnetic flux leakage detector |
| CN112083060B (en) * | 2020-09-28 | 2023-11-24 | 安科智能检测技术(北京)有限公司 | Traction bend release and traction pipeline magnetic flux leakage detector experimental device |
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