CN204997603U - Disassembling tool - Google Patents

Abstract

The utility model discloses a dismantling tool, which is used to disassemble a straight-wing deflector installed on a pulsator, comprising: a vertical hydraulic cylinder assembly, the telescopic rod of the hydraulic cylinder of the hydraulic cylinder It is used in conjunction with the pulser; and a plurality of pulling claws are arranged at intervals along the circumference of the hydraulic cylinder, and the upper end of the pulling claw is hinged with the cylinder barrel of the hydraulic cylinder, and the lower end has a matching part that matches the straight wing deflector. In the disassembly tool provided by the utility model, the matching parts at the lower ends of the plurality of pull claws cooperate with the straight-wing deflector, and the straight-wing deflector is lifted upwards, and the telescopic rod of the cylinder presses down on the pulser, in this way to separate the straight-wing deflector. Wing deflector and pulser, this process is powered by a hydraulic cylinder, not only the separation force is large, but also the whole separation process is smooth and fast, and will not cause damage to the instrument, so the practicability is better.

Description

removal tool

technical field

The utility model relates to the technical field of mechanical equipment, in particular to a dismantling tool.

Background technique

The straight-wing deflector is installed on the pulser, and its function is to change the mud vortex caused by the turbine generator on the upper part of the pulser into a mud turbulent flow, so as to prevent excessive erosion of the instrument body, which is of great significance for improving the downhole life of the instrument.

After the instrument comes out of the well, the straight-wing deflector often faces the problem of being difficult to disassemble. That is: under the environment of downhole high pressure and high mud flow rate, the solid components in the mud infiltrate and deposit in the tiny gap between the straight wing deflector and the pulser. The greater the mud specific gravity and the longer the operation time, the infiltration and The more serious the deposition, it is difficult for the straight wing deflector to separate from the pulser body.

The conventional tools for removing the straight-wing deflector are very simple, consisting only of a small iron hammer and a 1-foot-long copper rod with a diameter of about 1 cm.

The operation method is that the operator holds a copper rod in his left hand, puts one end of the copper rod on a certain wing of the straight-wing deflector, and continuously uses a hammer to hit the other end of the copper rod, and the copper rod transmits the force to the straight-wing deflector , forcing it to separate from the pulser body; each tap can only separate a small part of the straight-wing deflector from the pulser. The flow device is evenly stressed as a whole.

The above operation methods are simple and rough, which may cause different degrees of damage to the operator and the instrument, and the knocking time is long, and sometimes it may take several hours to complete the disassembly, which increases the intense on-site workload; even if the disassembly is completed, Equipment accessories worth nearly ten thousand yuan may also be damaged due to continuous knocking, resulting in a serious waste of resources and a substantial increase in operating costs.

Utility model content

In order to solve the above technical problems, the utility model provides a dismantling tool, which can smoothly and quickly separate the pulser and the straight-wing deflector without causing damage to the instrument during the operation.

In order to achieve the purpose of the utility model, the utility model provides a dismantling tool for disassembling the straight-wing deflector installed on the pulsator, including: a vertical hydraulic cylinder assembly, the hydraulic cylinder of the hydraulic cylinder assembly The telescopic rod is arranged downward, and the telescopic rod is used to cooperate with the pulser; and a plurality of pull claws are arranged at intervals along the circumference of the hydraulic cylinder, and the upper ends of the pull claws are connected with the cylinder of the hydraulic cylinder The barrel is hinged, and the lower end has a matching part matched with the straight wing deflector.

Optionally, the hydraulic cylinder assembly includes: the vertical hydraulic cylinder; and a horizontal pressing handle, located above the driving part of the hydraulic cylinder, and one end of which is hinged to the cylinder barrel of the hydraulic cylinder; Wherein, the other end of the pressing handle is shaken up and down to make the pressing handle drive the driving part to move, so as to realize the downward extension of the telescopic rod.

Optionally, the hydraulic cylinder assembly further includes: a connecting plate, located between the one end of the pressing handle and the cylinder barrel of the hydraulic cylinder, for hingedly connecting the pressing handle and the cylinder barrel, that is The upper end of the connecting plate is hingedly connected to the pressing handle, and the lower end is hingedly connected to the cylinder; and the one end of the pressing handle close to the pressing handle is also hingedly connected to the driving part.

Optionally, a stepped groove is provided on the upper end surface of the hook head at the lower end of the pull claw.

Optionally, the pulling claw includes: a splint, the upper end of which is hingedly connected to the cylinder, and the lower end is hingedly connected to the upper end of the pulling claw; and the pulling claw, the lower end of which is provided on the upper end surface of the hook head The stepped groove.

Optionally, the removal tool further includes: a threaded sleeve, the outer wall surface of the cylinder is provided with threads, the threaded sleeve is installed on the outer wall surface of the cylinder, and the upper end of the splint is hingedly connected to the on the screw thread.

Optionally, the pulling claws include three that are evenly distributed along the circumference of the cylinder.

Optionally, the dismounting tool further includes: a protective cap with an open lower end, which is used to be installed on the pulser to cooperate with the telescopic rod.

Optionally, the inner wall of the protective cap is provided with threads matching the outer wall surface of the upper end of the pulser, the upper end surface of the protective cap is provided with a thimble fitting hole, and the lower end of the telescopic rod has a thimble.

Optionally, the protective cap is made of aluminum.

Compared with the prior art, in the disassembly tool provided by the utility model, the matching parts at the lower ends of the plurality of pull claws cooperate with the straight-wing deflector, and the straight-wing deflector is lifted upward, and the telescopic rod of the cylinder presses down on the pulser. In this way, the straight-wing deflector and pulser are separated. This process is powered by a hydraulic cylinder. Not only is the separation force large, but the entire separation process is smooth and fast, and it will not cause damage to the instrument, so it is more practical.

Other features and advantages of the present invention will be set forth in the following description, and, in part, will be apparent from the description, or can be learned by practicing the present invention. The objectives and other advantages of the utility model can be realized and obtained by the structures particularly pointed out in the specification, claims and accompanying drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solution of the utility model, and constitute a part of the description, together with the embodiments of the application, are used to explain the technical solution of the utility model, and do not constitute a limitation to the technical solution of the utility model.

Fig. 1 is the structural representation of the removal tool described in the utility model;

Fig. 2 is a schematic cross-sectional structure diagram of the puller claw in the removal tool shown in Fig. 1;

Fig. 3 is a schematic diagram of the enlarged structure of part A in the pulling claw shown in Fig. 2;

FIG. 4 is a schematic cross-sectional structure diagram of the protective cap in the removal tool shown in FIG. 1 .

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 4 is:

1 hydraulic cylinder, 11 driving part, 2 pressing handle, 3 connecting plate, 41 stepped groove, 51 splint, 52 pulling claw, 6 threaded sleeve, 7 protective cap, 71 thimble matching hole, 8 pulser.

detailed description

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from those described here, therefore, the protection scope of the utility model is not limited by the following disclosure limitations of specific examples.

The dismounting tools described in some embodiments of the present invention are described below in conjunction with the accompanying drawings.

As shown in Figure 1, the removal tool provided by the utility model is used to disassemble the straight wing deflector installed on the pulser 8, including: a vertical hydraulic cylinder assembly, a telescopic rod of the hydraulic cylinder 1 of the hydraulic cylinder assembly Arranged downwards, the telescopic rod is used to cooperate with the pulser 8; and a plurality of pull claws are arranged at intervals along the circumference of the hydraulic cylinder 1, and the upper end of the pull claw is hinged with the cylinder barrel of the hydraulic cylinder 1, and the lower end has a straight wing The mating portion where the deflector fits.

In the disassembly tool provided by the utility model, the matching parts at the lower ends of the plurality of pull claws cooperate with the straight-wing deflector, and the straight-wing deflector is lifted upwards, and the telescopic rod of the cylinder presses down on the pulser, in this way to separate the straight-wing deflector. Wing deflector and pulser, this process is powered by a hydraulic cylinder, not only the separation force is large, but also the whole separation process is smooth and fast, and will not cause damage to the instrument, so the practicability is better.

In addition, the removal tool provided by the above-mentioned embodiments of the utility model can also have the following additional technical features:

In one embodiment of the present utility model, as shown in Figure 1, the hydraulic cylinder assembly includes: a vertical hydraulic cylinder 1; The cylinder barrel of the hydraulic cylinder 1 is hinged; among them, the other end of the pressing handle 2 is shaken up and down to make the pressing handle 2 drive the driving part 11 to move, so that the telescopic rod can extend downward, and the pressure relief screw on the cylinder barrel can be removed. Depressurize the hydraulic cylinder to retract the telescopic rod.

Further, as shown in FIG. 1, the hydraulic cylinder assembly also includes: a connecting plate 3, located between one end of the pressing handle 2 and the cylinder barrel of the hydraulic cylinder 1, for hingedly connecting the pressing handle 2 and the cylinder barrel, that is, the connecting plate 3. The upper end is hingedly connected to the pressing handle 2, and the lower end is hingedly connected to the cylinder; and the end of the pressing handle 2 close to the pressing handle 2 is also hingedly connected to the driving part 11, forming a four-bar linkage structure.

In one embodiment of the present utility model, as shown in FIGS. 1 to 3 , a stepped groove 41 is provided on the upper end surface of the hook head 4 at the lower end of the pull claw.

Since the outer edge of the annular part at the lower end of the straight-wing deflector needs to closely match the inner wall of the flow tube, no dents and scars are allowed, while the inner edge is only a mud channel, and slight dents and scars are allowed, so the stepped groove structure is adopted. The design can not only make the puller claws catch the straight-wing deflector to pull it up, but also make the force point be the inner edge of the straight-wing deflector, while the outer edge does not contact the force point of the puller claw, and will not produce any dents or scars;

Preferably, as shown in FIG. 1 , the pull claw includes: a splint 51 whose upper end is hingedly connected to the cylinder, and whose lower end is hingedly connected to the upper end of the puller claw 52; and the puller claw 52 (as shown in FIG. 2 ), whose lower end A stepped groove 41 is provided on the upper end surface of the hook head 4 .

It is also possible to design the puller claws into a centrally symmetrical structure, and the middle part of the puller claws is connected with the lower end of the overtime 51, which can also achieve the purpose of this application. But should belong to the scope of protection of this application.

In one embodiment of the present utility model, as shown in Figure 1, dismantling tool also comprises: threaded sleeve 6, is provided with screw thread on the outer wall surface of cylinder barrel, and threaded sleeve 6 is installed on the outer wall surface of cylinder barrel, and the upper end of splint 51 Hingedly connected on the threaded sleeve 6.

Preferably, the pulling claws include three that are evenly distributed along the circumferential direction of the cylinder.

Of course, the pull claws can also be two, four, etc. arranged evenly along the circumferential direction of the cylinder, which can also achieve the purpose of this application. within the protection scope of this application.

Preferably, as shown in Fig. 1 and Fig. 4, the removal tool further includes: a protective cap 7 with an open lower end, which is used to be installed on the pulser to cooperate with the telescopic rod.

The protective cap is installed on the upper end of the pulsator, and covers the aviation circuit without contacting with the aviation circuit, so as to protect the aviation circuit and prevent the aviation circuit from being damaged by force.

Preferably, the inner wall of the protective cap 7 is provided with threads matching the outer wall surface of the upper end of the pulser, the upper end surface of the protective cap 7 is provided with a thimble matching hole 71 , and the lower end of the telescopic rod has a thimble 12 .

The thread length on the outer wall surface of the upper end of the pulsator is 15cm, which can effectively make up for the problem caused by the insufficient stroke of the force-applying telescopic rod, so that the longest pulling distance of the puller reaches 15+5=20cm, which is 15cm longer than the removal stroke of the straight wing deflector. .

Preferably, the protective cap 7 is made of aluminum, and the force during disassembly is evenly distributed to the most threads during the disassembly process, so as to minimize the stress on the single-turn thread and avoid thread damage; since the thread of the pulser is Copper, so the protective cap is made of aluminum material which is slightly softer than copper. Once the force is too large, the thread of the protective cap will be damaged, so as to protect the thread of the pulser from damage and avoid the problem of damage to expensive accessories; the bottom of the protective cap is designed with The 15*20mm chamber prevents the protective cap from contacting the aviation connector and avoids the stress on the aviation connector.

The using method of the dismounting tool provided by the utility model is as follows:

Install the protective cap thread on the pulser; grasp the straight wing deflector with three puller claws, align the puller thimble with the thimble matching hole on the protective cap, adjust the threaded sleeve to a proper position, and make the puller claws grasp straight Wing deflector; screw on the pressure relief screw of the puller hydraulic cylinder, press down the handle continuously, so that the telescopic rod drives the thimble out, and disassemble the straight wing deflector 5cm; open the pressure relief screw, so that the telescopic rod drives the thimble back ;Adjust the threaded sleeve to the proper position again (down 5cm), so that the puller claws can grasp the straight-wing deflector again; repeat the relevant actions until the straight-wing deflector is completely disassembled.

In summary, in the disassembly tool provided by the utility model, the matching parts at the lower ends of the multiple claws cooperate with the straight-wing deflector, and the straight-wing deflector is lifted upwards, and the telescopic rod of the cylinder presses down on the pulser, thereby This method is used to separate the straight-wing deflector and pulser. This process is powered by a hydraulic cylinder. Not only is the separation force large, but the entire separation process is smooth and fast, and it will not cause damage to the instrument, so it is more practical.

In the description of the present utility model, the terms "installation", "connection", "connection", "fixation" and so on should be understood broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integrated ground connection; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in the present application. Novel at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments disclosed in the present utility model are as above, the content described is only an embodiment adopted to facilitate understanding of the present utility model, and is not intended to limit the present utility model. Anyone skilled in the field of the utility model can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed by the utility model, but the patent protection scope of the utility model , must still be subject to the scope defined by the appended claims.

Claims (10)

1. an extracting tool, for splitting the straight wing air deflector be arranged on pulser, is characterized in that, comprise:

The perpendicular hydraulic pressure cylinder assembly put, the expansion link of the hydraulic cylinder (1) of described hydraulic pressure cylinder assembly is arranged down, described expansion link be used for described pulser with the use of; With

Multiple pulling claw, the circumferential interval along described hydraulic cylinder (1) is arranged, and the upper end of pulling claw is hinged with the cylinder barrel of described hydraulic cylinder (1), lower end has the auxiliary section of matching with described straight wing air deflector.

2. extracting tool according to claim 1, is characterized in that, described hydraulic pressure cylinder assembly comprises:

The perpendicular described hydraulic cylinder (1) put; With

Horizontal pressing handle (2), is positioned at the top of the drive division (11) of described hydraulic cylinder (1) and the cylinder barrel of its one end and described hydraulic cylinder (1) is hinged;

Wherein, the other end of the described pressing handle (2) that fluctuates drives described drive division (11) action to make described pressing handle (2), realizes described expansion link stretch out downwards with this.

3. extracting tool according to claim 2, is characterized in that, described hydraulic pressure cylinder assembly also comprises:

Connecting plate (3), between the described one end being positioned at described pressing handle (2) and the cylinder barrel of described hydraulic cylinder (1), for described pressing handle (2) and the described cylinder barrel of being articulated and connected, that is: described connecting plate (3) upper end thereof connects described pressing handle (2), lower end is articulated and connected described cylinder barrel; And

The described one end place described pressing handle (2) being closed on described pressing handle (2) is also articulated and connected with described drive division (11).

4. extracting tool according to claim 1, is characterized in that, the upper surface of the gib head (4) of described pulling claw lower end is provided with step trough (41).

5. extracting tool according to claim 4, is characterized in that, described pulling claw comprises:

Clamping plate (51), its upper end and described cylinder barrel are articulated and connected, lower end is articulated and connected draws the upper end of horse pawl (52); With

Describedly draw horse pawl (52), the upper surface of the described gib head (4) of its lower end arranges described step trough (41).

6. extracting tool according to claim 5, is characterized in that, also comprises:

Thread bush (6), the outer side surface of described cylinder barrel is provided with screw thread, described thread bush (6) is arranged on the outer side surface of described cylinder barrel, and the upper end thereof of described clamping plate (51) is connected on described thread bush (6).

7. extracting tool according to claim 4, is characterized in that, described pulling claw comprises three of the uniform setting of circumference along described cylinder barrel.

8. extracting tool according to any one of claim 1 to 7, is characterized in that, also comprises:

The helmet (7) of lower ending opening, for be arranged on described pulser, with described expansion link with the use of.

9. extracting tool according to claim 8, it is characterized in that, the inwall of described helmet (7) is provided with the screw thread matched with the outer side surface of described pulser upper end, the upper surface of described helmet (7) is provided with thimble mating holes (71), the lower end of described expansion link has thimble (12).

10. extracting tool according to claim 9, is characterized in that, described helmet (7) is alumiaum article.