CN211777341U

CN211777341U - Safety pulley for well logging

Info

Publication number: CN211777341U
Application number: CN202020441991.8U
Authority: CN
Inventors: 张君; 罗娜; 唐杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-10-27
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a safety pulley for well logging, including first casing, the inside welding of first casing has the third body of rod, the third body of rod and the inner circle welding of bearing, the outer lane welding of bearing has the third casing, eight second bodies of rod have evenly been run through to one side that the third body of rod was kept away from to the third casing, eight the one end that the third body of rod was kept away from to the second body of rod all welds with the second casing, eight the one end that the second body of rod is located the inside of third casing all welds the arc, eight the one end that the second body of rod is close to the second casing all overlaps and is equipped with the second spring; this device is when using, with cable installation in second casing surface, during the pulling cable, second casing atress extrusion second spring, the second spring carries out the atress buffering, prevents to exert oneself suddenly and leads to the cable to rock the range too big, leads to the cable to jump the groove to set up the rubber sleeve and protect the bearing, prevent that the arc from leading to its damage with the bearing collision.

Description

Safety pulley for well logging

Technical Field

The utility model relates to a pulley technical field for the well logging specifically is a safety pulley for well logging.

Background

Logging, also called geophysical logging, is a method for measuring geophysical parameters by utilizing the geophysical characteristics of rock stratum, such as electrochemical property, electric conduction property, acoustic property, radioactivity, etc., and belongs to one of the methods for applying the geophysical methods, during oil drilling, logging is required to be carried out after the oil drilling is carried out to the designed well depth, also called well completion electric logging, so as to obtain various oil geology and engineering technical data which are used as the original data of well completion and oil field development, the logging is conventionally called open hole logging, while the second series of logging carried out after the oil well is completed is conventionally called production logging or development logging, the development of production logging generally goes through four stages of simulation logging, digital logging, numerical control logging and imaging logging, during oil logging, a logging pulley is used for guiding a cable, the cable passes through a logging pulley for logging, and the application is wide in the oil industry, in the process of getting up and down a cable, the phenomenon that the logging cable is blocked or jammed often occurs under the influence of uncertain factors of well conditions, and the conventional logging pulley generates vibration when the cable is blocked, so that the cable is easy to jump a groove and the pulley is possibly fallen off, therefore, the safety pulley for logging is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a safety pulley is used in well logging to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a safety pulley for well logging, includes first casing, the inside welding of first casing has the third body of rod, the outside cover of the third body of rod is equipped with the bearing, the third body of rod welds with the inner circle of bearing, the outer lane welding of bearing has the third casing, one side that the third body of rod was kept away from to the third casing evenly runs through eight second bodies of rod, eight the one end that the third body of rod was kept away from to the second body of rod all welds with the second casing, eight the arc has all been welded to the one end that the second body of rod is located the inside of third casing, eight the one end that the second body of rod is close to the second casing all overlaps and is equipped with the second spring, the one end that the third casing was kept away from to the second spring all welds with the second casing, the one end that the second casing was kept away from to the second spring all.

As further preferable in the present technical solution: the outer ring of the bearing is sleeved with a rubber sleeve.

As further preferable in the present technical solution: and rubber rings are symmetrically and fixedly connected to two sides of the second shell.

As further preferable in the present technical solution: the welding of the top both sides of first casing has two first body of rod, the top of first casing is equipped with the fourth casing, two the fourth casing is all run through to the one end that the first body of rod is close to the fourth casing, two first body of rod all welds the first plate body in the inside one end of fourth casing, two the first body of rod is located one side of fourth casing inside and all overlaps and is equipped with first spring.

As further preferable in the present technical solution: the outer surface of the second shell is uniformly provided with first hole grooves.

As further preferable in the present technical solution: two circular slide rails are symmetrically installed on two sides of the interior of the first shell, two sliders are welded on two sides of the second shell, and one side, far away from the second shell, of each slider is connected with the circular slide rails in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that: this device is when using, with cable installation in second casing surface, during the pulling cable, second casing atress extrusion second spring, the second spring carries out the atress buffering, prevents to exert oneself suddenly and leads to the cable to rock the range too big, leads to the cable to jump the groove to set up the rubber sleeve and protect the bearing, prevent that the arc from leading to its damage with the bearing collision.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a third housing of the present invention;

fig. 3 is an appearance schematic diagram of the second housing of the present invention.

In the figure: 1. a first plate body; 2. a first rod body; 3. a first spring; 4. a first housing; 5. a rubber ring; 6. a second housing; 7. a second rod body; 8. a second spring; 9. a third housing; 10. a third rod body; 11. a bearing; 12. a rubber sleeve; 13. an arc-shaped plate; 14. a circular slide rail; 15. a slider; 16. a fourth housing; 17. a first hole groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: a safety pulley for well logging comprises a first shell 4, a third rod body 10 is welded inside the first shell 4, a bearing 11 is sleeved outside the third rod body 10, the third rod body 10 is welded with an inner ring of the bearing 11, a third shell 9 is welded on an outer ring of the bearing 11, eight second rod bodies 7 uniformly penetrate through one side of the third shell 9 far away from the third rod body 10, one ends of the eight second rod bodies 7 far away from the third rod body 10 are welded with a second shell 6, one ends of the eight second rod bodies 7 in the third shell 9 are welded with arc-shaped plates 13, one ends of the eight second rod bodies 7 close to the second shell 6 are sleeved with second springs 8, one ends of the second springs 8 far away from the third shell 9 are welded with the second shell 6, one ends of the second springs 8 far away from the second shell 6 are welded with the third shell 9, the second springs 8 are arranged to absorb shock for the stressed second shell 6, prevent that the cable from jumping the groove to prevent that bearing 11 and third casing 9 from droing, arc 13 that the one end of the second body of rod 7 set up can prevent that the cable from transferring because of the too big card of leading to of second casing 6 atress pause.

In this embodiment, specifically: the outer lane cover of bearing 11 is equipped with rubber sleeve 12, sets up rubber sleeve 12 and protects bearing 11, prevents that

arc

13 and 11 collisions of bearing from leading to bearing 11 to damage.

In this embodiment, specifically: the bilateral symmetry fixedly connected with rubber circle 5 of second casing 6 sets up rubber circle 5 and prevents cable roll-off second casing 6, prevents that the cable from jumping the groove.

In this embodiment, specifically: two first body of rod 2 of the welding of the top both sides of first casing 4, the top of first casing 4 is equipped with fourth casing 16, fourth casing 16 is all run through to the one end that two first body of rod 2 are close to fourth casing 16, first plate body 1 is all welded to the one end that two first body of rod 2 are located the inside of fourth casing 16, one side that two first body of rod 2 are located the inside of fourth casing 16 all overlaps and is equipped with first spring 3, it cushions when first casing 4 vibrations to set up first spring 3, first plate body 1 of the setting of 2 one end of the first body of rod can prevent that first spring 3 and first body of rod 2 from droing.

In this embodiment, specifically: first hole groove 17 has evenly been seted up to the surface of second casing 6, sets up the frictional force of first hole groove 17 reinforcing cable and second casing 6, prevents that the cable from transferring the in-process and meeting the card pause of hindering because of the smooth cable that leads to in second casing 6 surface.

In this embodiment, specifically: two circular slide rails 14 are symmetrically installed on two sides of the inside of the first shell 4, two sliders 15 are welded on two sides of the second shell 6, one side, far away from the second shell 6, of the four sliders 15 is connected with the circular slide rails 14 in a sliding mode, the circular slide rails 14 and the sliders 15 are arranged to enable the second shell 6 to rotate on a set rail, vibration is reduced, and the second shell 6 is stable when rotating.

Working principle or structural principle, when in use, the fourth shell 16 of the device is fixed from the upper part, a cable for well logging is sleeved on the outer surface of the second shell 6, and the cable is put into a well, the rubber rings 5 at two sides of the second shell 6 can prevent the cable from shifting due to sliding when being put down, so as to prevent the cable from jumping out of a groove, the sliding blocks 15 at two sides of the second shell 6 slide in the circular sliding rails 14, so that the second shell 6 rotates along a set track, so as to reduce the vibration when the second shell 6 rotates, so that the second shell 6 is more stable, in order to prevent the device from being damaged by the impact suffered by the cable when being put down, the second spring 8 is arranged in the second shell 6, when the second shell 6 is stressed, the second rod body 7 is driven to extrude the second spring 8, the second spring 8 is stressed and buffered, the first spring 3 in the fourth shell 16 buffers the stress of the first shell 4, prevent the first shell 4 from shaking by too large amplitude to cause the cable to jump the groove, the first plate body 1 arranged at one end of the first rod body 2 can prevent the first spring 3 and the first rod body 2 from falling off, the arc plate 13 arranged at one end of the second rod body 7 can prevent the cable from being blocked due to the over-stress of the second shell 6 when the cable is transferred, the rubber sleeve 12 is arranged at the outer side of the bearing 11 to protect the bearing 11 and prevent the bearing 11 from being damaged due to the contact with the arc plate 13, in order to prevent the cable from sliding out when the cable is transferred, the first hole groove 17 is arranged on the outer surface of the second shell 6 to increase the friction force between the cable and the second shell 6, prevent the cable from being transferred to block due to the smooth surface of the second shell 6 when the cable is transferred, the vibration generated when the cable is blocked is buffered by the first spring 3 and the second spring 8, and protect the device from being damaged due to the over-large shaking, and prevent the cable from being broken due to stress, and improve the overall safety of the device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A safety block for logging, comprising a first housing (4), characterized in that: the welding device is characterized in that a third rod body (10) is welded inside the first shell (4), a bearing (11) is sleeved outside the third rod body (10), the third rod body (10) is welded with an inner ring of the bearing (11), a third shell (9) is welded outside the bearing (11), eight second rod bodies (7) evenly penetrate through one side, far away from the third rod body (10), of the third shell (9), one ends, far away from the third rod body (10), of the eight second rod bodies (7) are welded with the second shell (6), one ends, located inside the third shell (9), of the eight second rod bodies (7) are welded with arc-shaped plates (13), one ends, close to the second shell (6), of the eight second rod bodies (7) are sleeved with second springs (8), one ends, far away from the third shell (9), of the second springs (8) are welded with the second shell (6), and one end of the second spring (8) far away from the second shell (6) is welded with the third shell (9).

2. A safety block for logging according to claim 1, wherein: the outer ring of the bearing (11) is sleeved with a rubber sleeve (12).

3. A safety block for logging according to claim 1, wherein: the two sides of the second shell (6) are symmetrically and fixedly connected with rubber rings (5).

4. A safety block for logging according to claim 1, wherein: the welding of the top both sides of first casing (4) has two first body of rod (2), the top of first casing (4) is equipped with fourth casing (16), two the one end that first body of rod (2) is close to fourth casing (16) all runs through fourth casing (16), two the one end that first body of rod (2) is located fourth casing (16) inside all welds first plate body (1), two the one side that first body of rod (2) is located fourth casing (16) inside all is equipped with first spring (3).

5. A safety block for logging according to claim 1, wherein: the outer surface of the second shell (6) is uniformly provided with first hole grooves (17).

6. A safety block for logging according to claim 1, wherein: two circular slide rails (14) are symmetrically installed on two sides of the interior of the first shell (4), two sliders (15) are welded on two sides of the second shell (6), and the sliders (15) are connected with the circular slide rails (14) in a sliding mode, wherein one side of the second shell (6) is far away from the sliders (15).