Rotating connecting shaft fixing device and logging top-bottom pulley assembly
Technical Field
The utility model belongs to the technical field of the logging equipment technique and specifically relates to a rotate connecting axle fixing device and log well world loose pulley assembly.
Background
In the process of oil and gas exploration and development, well logging is an important ring of well drilling construction. Currently, in the well logging process, a well logging instrument is conveyed to the underground through a cable, and the well logging instrument is conveyed to the underground through the cable on a top-bottom pulley for detection.
the top and bottom pulleys are rotatably mounted on the lifting lug hanger through a rotating connecting shaft, the commonly used rotating connecting shaft is a screw rod, and the tail part of the screw rod is fixed through a nut. In the well logging work progress, the cable often can appear controlling the phenomenon of fore-and-aft swing because of the complicated circumstances in the pit, causes screw rod and nut not hard up because of vibrations, drops even, causes the great incident that world pulley dropped and logging instrument damaged, and in addition, the nut dismouting is wasted time and energy.
Therefore, how to reduce the probability that the rotating connecting shaft falls off and facilitate the disassembly and assembly of the top and bottom pulleys when the top and bottom pulleys are used is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
in view of this, the first objective of the present invention is to provide a fixing device for a rotating connecting shaft, which can reduce the probability of dropping the rotating connecting shaft when the top and bottom pulleys are used, and facilitate the detachment and installation of the top and bottom pulleys.
the utility model aims at providing a well logging world loose pulley assembly.
in order to achieve the above object, the present invention provides the following solutions:
a fixing device for a rotary connecting shaft comprises a connecting pin, a limiting pin and a telescopic elastic clamping piece;
The connecting pin is arranged at the tail part of the rotating connecting shaft through the limiting pin and is used for clamping the lifting lug hanger;
The limiting pin is provided with a limiting hole, and the telescopic elastic clamping piece is installed on the connecting pin and is inserted in the inserting hole.
In a specific embodiment, the connecting pin is provided with a mounting hole;
The limiting pin is arranged in the mounting hole.
In another specific embodiment, the retractable elastic clamping piece comprises a safety pin, a safety cover plate and a spring in a compressed state;
The tail part of the connecting pin is provided with an installation groove, the safety cover plate is covered at the installation groove, and the safety pin penetrates through the safety cover plate and is slidably installed in the installation groove;
A limiting plate capable of being clamped at the bottom of the mounting groove is arranged on the safety pin, the spring is sleeved on the safety pin, one end of the spring is abutted against the limiting plate, and the other end of the spring is abutted against the safety cover plate;
The connecting pin is further internally provided with a communicating hole for communicating the mounting groove with the mounting hole, and the safety pin can penetrate through the communicating hole to be inserted into the limiting hole.
In another specific embodiment, the top end of the safety pin is provided with a handle or a finger ring.
In another specific embodiment, the safety cover plate is detachably mounted on the connection pin by means of screws.
In another specific embodiment, the number of the limiting holes is multiple, and the limiting holes are uniformly distributed on the limiting pin along the axial direction of the limiting pin.
In another specific embodiment, the retractable elastic clamping piece comprises a bolt and a reset torsion spring;
the bolt is installed on the connecting pin, one end of the reset torsion spring is connected with the connecting pin, the other end of the reset torsion spring is connected with the pin rod of the bolt, and the reset torsion spring can enable the pin rod to be in a locking state;
The tail part of the limiting pin is provided with a plug hole, and a pin rod of the plug pin can be inserted into the plug hole to fix the limiting pin in the mounting hole.
In another specific embodiment, the bottom end of the limit pin is provided with a chamfer.
In another specific embodiment, the spacing pin is disposed perpendicular to the connecting pin.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
The utility model discloses a in a concrete embodiment, during the installation of world pulley, will rotate the connecting axle and pass world pulley to on passing the lug hanger, make the world pulley arrange the lug hanger in, the head card of rotation connecting axle is in one side of lug hanger, and the connecting pin passes through the spacer pin and installs the afterbody at the rotation connecting axle, blocks the opposite side of lug hanger, realizes the installation of world pulley. Because scalable elastic clamping spare is pegged graft in spacing downthehole, and scalable elastic clamping spare is fixed on the connecting pin, consequently, realized the stable fixed of rotating the connecting axle, when having reduced the world pulley use, the probability that the rotating connecting axle dropped. In addition, adopt scalable elasticity joint spare to peg graft in spacing downthehole mode, when the world pulley needs to be dismantled, with scalable plug connector follow spacing downthehole extract can, convenient and fast labour saving and time saving. To sum up, the utility model discloses when both having reduced the world pulley use, the probability that the rotation connecting axle dropped, the dismouting world pulley of being convenient for again.
In order to achieve the second objective, the present invention provides the following solutions:
a well logging sky and earth pulley assembly comprises a sky and earth pulley, a rotating connecting shaft and a lifting lug hanger, wherein the sky and earth pulley penetrates through the rotating connecting shaft to be mounted on the lifting lug hanger, and the well logging sky and earth pulley assembly further comprises a fixing device for the rotating connecting shaft.
Because the utility model discloses a logging world loose pulley assembly contains the rotation connecting axle fixing device in the above-mentioned arbitrary one, consequently, the above-mentioned beneficial effect that rotates connecting axle fixing device and have all is the utility model discloses a logging world loose pulley assembly contains.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any novelty.
fig. 1 is a schematic structural view of the rotating connecting shaft fixing device of the present invention when the limiting pin is not installed in the mounting hole.
wherein, in fig. 1:
Connecting pin 1, spacer pin 2, scalable elasticity joint 3, spacing hole 201, mounting hole 101, safety pin 301, safety cover plate 302, spring 303, mounting groove 102, screw 4, limiting plate 3011.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the utility model provides a rotate connecting axle fixing device, wherein, rotate connecting axle fixing device and include connecting pin 1, spacer pin 2 and scalable elasticity joint spare 3.
the connecting pin 1 is arranged at the tail part of the rotating connecting shaft through the limiting pin 2 and used for clamping the lifting lug hanger, specifically, the tail part of the connecting pin 1 is provided with an installation hole 101, the limiting pin 2 is provided with a limiting hole 201, the telescopic elastic clamping piece 3 is arranged on the connecting pin 1 and is inserted into the limiting hole 201, and the connecting pin 1 is arranged on the rotating connecting shaft through the limiting pin 2; the mounting hole 101 can also be replaced by a mounting groove 102 (the mounting groove 102 is a through groove, the connecting pin 1 is mounted in the through groove from one side of the through groove, and the through groove can prevent the connecting pin 1 from extruding out of the through groove); the hollow tube can be further installed at the tail of the connecting pin 1, the limiting pin 2 can be installed in the hollow tube, and the connecting pin 1 is installed on the rotating connecting shaft through the limiting pin 2 by being inserted into the limiting hole 201 through the telescopic elastic clamping piece 3.
Scalable elasticity joint spare 3 refers to the joint spare that can be close to relatively or keep away from the direction flexible of spacing hole 201, and under the normality, scalable elasticity joint spare 3 is pegged graft in spacing hole 201 under its effect of self.
When the top and bottom pulleys are installed, the rotating connecting shaft penetrates through the top and bottom pulleys and penetrates through the lifting lug hanger, so that the top and bottom pulleys are placed in the lifting lug hanger, the head of the rotating connecting shaft is clamped on one side of the lifting lug hanger, the connecting pin 1 is installed on the tail of the rotating connecting shaft through the limiting pin 2, the other side of the lifting lug hanger is clamped, and the installation of the top and bottom pulleys is realized. Because scalable elasticity joint 3 pegs graft in spacing hole 201, and scalable elasticity joint 3 fixes on connecting pin 1, consequently, realized the stable fixed of rotating the connecting axle, when having reduced the world pulley use, the probability that the rotating connecting axle dropped. In addition, adopt scalable elasticity joint spare 3 to peg graft in spacing hole 201, when the world pulley needs to be dismantled, with scalable plug connector follow spacing hole 201 in extract can, convenient and fast labour saving and time saving. To sum up, the utility model discloses when both having reduced the world pulley use, the probability that the rotation connecting axle dropped, the dismouting world pulley of being convenient for again.
example two
The utility model provides a second embodiment, the structure of the rotation connecting axle fixing device in this embodiment is similar with the rotation connecting axle fixing device in embodiment one, just no longer has described the difference again to the same part, only introduces.
in this embodiment, the utility model discloses a mounting hole 101 has been seted up on connecting pin 1, and spacer pin 2 is installed in mounting hole 101. Further, the utility model discloses a spacer pin 2 sets up with connecting pin 1 is perpendicular, and the axle lead of mounting hole 101 and connecting pin 1 sets up perpendicularly, the offering of the mounting hole 101 of being convenient for.
Further, the utility model discloses a scalable elasticity joint spare 3 includes safety pin 301, safety cover plate 302 and is in compression state's spring 303.
The tail part of the connecting pin 1 is provided with a mounting groove 102, a safety cover plate 302 is covered at the mounting groove 102, and a safety pin 301 passes through the safety cover plate 302 and is slidably mounted in the mounting groove 102.
the safety pin 301 is provided with a limiting plate 3011 capable of being clamped at the bottom of the mounting groove 102, the spring 303 is sleeved on the safety pin 301, one end of the spring 303 is abutted to the limiting plate 3011, and the other end of the spring 303 is abutted to the safety cover plate 302.
A communication hole for communicating the installation groove 102 with the installation hole 101 is further formed in the connecting pin 1, and the safety pin 301 can penetrate through the communication hole and be inserted into the limiting hole 201. The size of the communication hole is smaller than that of the limit plate 3011, so that the limit plate 3011 can be clamped at the bottom of the installation groove 102 under the restoring force of the spring 303, and the safety pin 301 is pushed to the position where the limit hole 201 is inserted. When the safety pin 301 needs to be detached, the safety pin 301 is pulled in a direction away from the limiting hole 201, so that the safety pin 301 is separated from the limiting hole 201.
Further, the utility model discloses a safety pin 301's top is provided with handle or ring, is convenient for spur safety pin 301.
Further, the utility model discloses a safety cover plate 302 passes through screw 4 demountable installation on connecting pin 1.
further, the utility model discloses a number of spacing hole 201 is a plurality ofly, and along the axis direction equipartition of spacer pin 2 on spacer pin 2, is convenient for adjust spacer pin 2 and exceeds the height of connecting pin 1.
Further, the utility model discloses a chamfer of the leading-in mounting hole 101 of spacer pin 2 of being convenient for is seted up to the bottom of spacer pin 2. A chamfer may be provided around the bottom end of the spacing pin 2, or a chamfer may be provided only on one side of the spacing pin 2, as shown in fig. 1. The chamfer is arranged so that the safety pin 301 can automatically contract when the limit pin 2 is inserted into the limit hole 201.
EXAMPLE III
the utility model provides a third embodiment, the structure of the rotation connecting axle fixing device in this embodiment is similar with the rotation connecting axle fixing device in embodiment one, just no longer has described the difference again to the same part, only introduces.
In this embodiment, the utility model discloses a scalable elasticity joint spare 3 includes bolt and reset torsion spring, and the bolt is installed on connecting pin 1, and the one end and the connecting pin 1 of reset torsion spring are connected, and the other end of reset torsion spring is connected with the pin pole of bolt, and reset torsion spring can make the pin pole be in lock state.
The tail of the limit pin 2 is provided with a plug hole, and a pin rod of the plug pin can be inserted into the plug hole to fix the limit pin 2 in the mounting hole 101.
Example four
The utility model provides a well logging world loose pulley assembly, well logging world loose pulley assembly include world pulley, rotate connecting axle, lug hanger and as above-mentioned rotation connecting axle fixing device in an arbitrary embodiment, the world pulley passes and rotates the connecting axle and install on the lug hanger, rotates the afterbody that connecting axle fixing device is used for the fixed rotation connecting axle.
In the logging process of the oil and gas well, the specific operation flow is as follows:
Firstly, installing a logging cable, unlocking the safety pin 301, taking out the limiting pin 2, and enabling the logging cable to pass through a guide wheel of the top and bottom pulley and be installed in a groove of the guide wheel;
Secondly, inserting a limit pin 2, and locking the safety pin 301 to realize the connection of the world pulley and the lifting lug hanger;
similarly, the logging cable is installed on the limiting wheel of the top and bottom pulley by the device;
and connecting the lifting lug hanger with the well platform equipment to complete the installation of the logging cable.
And (4) starting and descending the logging cable in the shaft to finish corresponding logging operation.
to sum up, the utility model discloses a logging sky and earth pulley assembly, which comprises a rotating connecting shaft fixing device, and the rotating connecting shaft fixing device is fast and convenient to install due to the adoption of the rotating connecting shaft fixing device, therefore, the utility model has the characteristics of fast and convenient installation relative to a connecting device fixed by a screw nut; secondly, adopt the fixed mode of rotating connecting axle fixing device, can overcome the logging work progress, because of the logging cable under the complicated conditions such as control, swing back and forth, cause the risk that the world pulley dropped, factor of safety is high, and then has improved the production ageing.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.