CN213484494U - Independent wellhead pulley mechanism - Google Patents

Abstract

The utility model is suitable for the technical field of electric power tools, and provides an independent wellhead pulley mechanism, which comprises a base, a roller, a brush, a bracket and a clamping pin; the base comprises two horizontal cross rods and a first connecting rod, and the two cross rods are connected through the first connecting rod; the bracket is fixedly arranged above the two cross rods; the roller is rotatably arranged on the bracket and used for winding and unwinding a cable; the two brushes are close to each other and arranged between the two cross rods and used for cleaning the outer wall of the cable penetrating between the two brushes; the bottom of the cross rod is provided with a clamping pin used for tightly abutting against the inside of the wellhead so as to erect the support outside the wellhead. When the cable is taken up and paid off from the roller, the cable passes through the two brushes and is cleaned through the brushes, and in addition, the pressure of the rolling friction of the cable on the roller is offset on the wall of the wellhead due to the clamping feet arranged on the base, so that the movement of the frame is avoided.

Description

Independent wellhead pulley mechanism

Technical Field

The utility model relates to a measure technical field in the pit, especially relate to a stand alone type well head pulley mechanism.

Background

The logging cable belongs to a cable for electrical equipment and is used for connecting a ground system and an underground instrument and transmitting logging data. In the process of retracting and releasing the underground cable on the ground, the cable is easily scratched by the edge of a wellhead, is easily adhered with underground dirt, can scratch the cable, and affects the safe use of the cable. The existing logging cable usually adopts an air-blowing type mud scraper, and impurities on the surface of the cable are blown away by high-pressure air; but the sundries on the surface of the cable have large adhesive force and can be blown off only by high pressure, and the cleaning effect is not ideal.

In addition, when the cable was at the cable well head or long distance stringing, the cable was accomplished the cable and was erect the work under the effect of tractor, because the cable dead weight, the cable often takes place the tenesmus and jumps the pendulum when the stringing, seriously influences the stringing precision, if the cable is great at the in-process tenesmus of stringing and swing range, very easily leads to the wearing and tearing of cable, influences the use of cable.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a stand alone type well head pulley mechanism, easy adhesion filth, the technical problem of easy wearing and tearing when the cable is received and released line among the purpose are solved prior art.

The utility model provides a technical problem can adopt following technical scheme to realize: a free-standing wellhead pulley mechanism comprises a base, a roller, a brush, a support and a clamping foot;

the base comprises two horizontal cross rods and a first connecting rod, and the two cross rods are connected through the first connecting rod;

the bracket is fixedly arranged above the two cross rods;

the roller is rotatably arranged on the bracket and used for winding and unwinding a cable;

the two brushes are close to each other and arranged between the two cross rods and used for cleaning the outer wall of the cable penetrating between the two brushes;

the bottom of the cross rod is provided with a clamping pin used for tightly abutting against the inside of the wellhead so as to erect the support outside the wellhead.

Preferably, the clamping pins and the first connecting rod are respectively positioned on two sides of the midpoint of the cross rod.

Preferably, the clamping pin and the first connecting rod are located on the same side of the middle point of the cross rod, and the horizontal distance from the clamping pin to the middle point of the cross rod is greater than the horizontal distance from the first connecting rod to the middle point of the cross rod.

Preferably, the number of the clamping pins is two, and the two clamping pins are respectively and symmetrically arranged at the bottoms of the two cross rods.

Preferably, a second connecting rod is further arranged between the two cross rods, and a hook is arranged on the second connecting rod.

Preferably, the locking device further comprises loop bars sleeved outside the two cross bars respectively, and the loop bars are provided with locking devices for locking or unlocking the loop bars to the cross bars.

Preferably, the bottom of the cross rod is provided with a sliding groove, the clamping pin is clamped in the sliding groove, and the clamping pin is provided with a locking device for locking or unlocking the clamping pin in the sliding groove.

Preferably, the roller is made of nylon.

Preferably, the two brushes are movably assembled along the length direction of the first connecting rod so as to be close to or far away from each other.

The utility model has the advantages that: through setting up the base, the gyro wheel, brush and card foot convert the slip friction at the brick-concrete well head edge of cable into the rolling friction on the gyro wheel, avoid the cable to scrape and grind the damage, when the cable is receive and releases from the gyro wheel, pass in the middle of two brushes, realize the cleanness of cable through the brush, in addition, because the base is provided with the card foot, the rolling friction's of cable on the gyro wheel pressure is offset on the well head wall, avoids the frame drunkenness, has reduced the wearing and tearing of cable to the stringing precision has been improved.

Drawings

Fig. 1 is a schematic perspective view of a pulley mechanism of a self-contained wellhead according to the present invention;

fig. 2 is a top view of the utility model discloses a stand-alone type well head pulley mechanism.

Reference numbers: 1, a base; 11 a cross bar; 12 a first connecting rod; 13, clamping pins; 2, brushing; 3, a bracket; 4, rollers; 5 a second connecting rod; 6, hanging hooks.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, which is a perspective view of the independent wellhead pulley mechanism of the present invention, the pulley mechanism comprises a base 1, a roller 4, a brush 2, a bracket 3 and a clamping leg 13;

the base 1 comprises two horizontal cross rods 11 and a first connecting rod 12, and the two cross rods 11 are connected through the first connecting rod 12;

the two cross bars 11 are parallel to each other and the first connecting bar 12 is perpendicular to the cross bars 11. This fixed connection's mode can guarantee that base 1 erects steadily in the well face.

In this embodiment, the bracket 3 is fixedly disposed above the two cross bars 11;

the roller 4 is rotatably arranged on the bracket 3 and used for winding and unwinding a cable;

the two brushes 2 are close to each other and arranged between the two cross rods 11 and used for cleaning the outer wall of the cable penetrating between the two brushes 2; when the cable is taken up and paid off from the roller 4, the cable can pass through the two groups of brushes 2, and self-cleaning is realized through friction between the cable and the brushes 2.

The bottom of each of the two cross bars 11 is symmetrically provided with a clamping pin 13, the clamping pin 13 and the first connecting rod 12 are located on the same side of the midpoint of the cross bar 11 and used for tightly abutting against the inside of a wellhead to erect the support 3 outside the wellhead, and the horizontal distance from the clamping pin 13 to the midpoint of the cross bar 11 is greater than the horizontal distance from the first connecting rod 12 to the midpoint of the cross bar 11.

When the base 1 is erected on a wellhead, the horizontal direction of the cross rod 11 is adjusted to enable the two clamping feet 13 to clamp the wellhead, when a cable is wound and unwound from the roller 4, the pressure of rolling friction of the cable on the roller 4 is offset on the wall of the wellhead, and the arrangement can ensure that the base 1 is stably erected on the wellhead without generating displacement in the horizontal direction.

In an alternative embodiment, the locking pin 13 and the first connecting rod 12 are respectively located at two sides of the midpoint of the cross rod 11.

In an alternative embodiment, a second connecting rod 5 is further arranged between the two cross rods 11, and a hook 6 is arranged on the second connecting rod 5 and used for hanging and placing a downhole right-angle pulley rope.

In an alternative embodiment, the base further comprises sleeve rods (not shown) respectively sleeved outside the two cross rods 11, and the cross rods 11 can slide on the sleeve rods (not shown) so that the base 1 can adapt to wellheads with different calibers. The loop bar is provided with a locking device (not shown) for locking or unlocking the loop bar to the cross bar 11, the locking device (not shown) can prevent two components (such as the inner and outer tubular columns) from relatively moving in a specified direction, and in another state, the locking device can allow the two components to relatively move in the specified direction, which is a common technical means in the mechanical field and is not described herein again. When the cross bar 11 is adjusted to a proper position, a locking device (not shown) is opened to lock the loop bar, and at the moment, the base 1 of the cross bar 11 is stably erected on the well surface and cannot be displaced in the horizontal direction.

In optional embodiment, the bottom of the cross rod 11 is provided with a sliding groove, and the clamping pins 13 are clamped in the sliding groove and can slide on the cross rod 11 left and right, so that the base 1 can adapt to well mouths with different calibers. The clamping leg 13 is provided with a locking device (not shown) for locking or unlocking the clamping leg to the sliding groove, when the clamping leg 13 is adjusted to a proper position, the locking device (not shown) is opened to lock the clamping leg 13, and at the moment, the base 1 of the cross rod 11 is stably erected on the well surface without generating horizontal displacement.

The idler wheel 4 is made of nylon materials, and abrasion of the idler wheel 4 to the cable can be effectively reduced.

In an alternative embodiment, the two brushes 2 are movably mounted along the length of the first connecting rod 12 to be close to or away from each other, and the distance between the two brushes 2 can be adjusted to accommodate cables of different sizes to pass through. When the brush 2 is worn, it is easy to remove it for replacement.

The utility model discloses a stand alone type well head pulley mechanism can convert the sliding friction at brick-concrete well head edge of cable into the rolling friction on nylon gyro wheel 4, avoids the cable to scrape and grinds the damage. When the cable is taken up and paid off from gyro wheel 4, pass from two brushes 2 middles, realize the cleanness of cable through brush 2, in addition, because base 1 is provided with card foot 13, the cable is offset on the well head wall at gyro wheel 4 rolling friction's pressure, avoids the frame drunkenness, has reduced the wearing and tearing of cable to the stringing precision has been improved. The utility model discloses installation convenient to use, it is simple effective to long distance tow chain epidermis protection, the filth that also can clean cable epidermis is infected with can use with the supporting of each model cable car.

The above embodiments are only used to illustrate the technical solution of the present invention, and do not limit the protection scope of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from these embodiments without any inventive step, are within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still make no creative work on the condition of conflict, and make mutual combination, addition and deletion, or other adjustments according to the features in the embodiments of the present invention, thereby obtaining other technical solutions which are different and do not depart from the concept of the present invention, and these technical solutions also belong to the scope to be protected by the present invention.

Claims (8)

1. A self-contained wellhead pulley mechanism is characterized by comprising a base, a roller, a brush, a bracket and a clamping foot;

the base comprises two horizontal cross rods and a first connecting rod, and the two cross rods are connected through the first connecting rod;

the bracket is fixedly arranged above the two cross rods;

the roller is rotatably arranged on the bracket and used for winding and unwinding a cable;

the two brushes are close to each other and arranged between the two cross rods and used for cleaning the outer wall of the cable penetrating between the two brushes;

the bottom of the cross rod is provided with a clamping pin used for tightly abutting against the inside of the wellhead so as to erect the support outside the wellhead.

2. A self-contained wellhead pulley mechanism according to claim 1, wherein the dogs are on the same side of the cross bar midpoint as the first connecting rod, and the horizontal distance of the dogs to the cross bar midpoint position is greater than the horizontal distance of the first connecting rod to the cross bar midpoint position.

3. A self-contained wellhead pulley mechanism according to claim 1, wherein there are two of the said locking feet, each of which is symmetrically disposed at the bottom of two of the said cross bars.

4. A self-contained wellhead pulley mechanism according to claim 2, wherein a second connecting rod is further provided between the two cross rods, and a hook is provided on the second connecting rod.

5. A self-contained wellhead pulley mechanism according to claim 1, further comprising a sleeve rod sleeved outside the two cross rods, the sleeve rod being provided with a locking device for locking or unlocking the sleeve rod to the cross rods.

6. A freestanding wellhead pulley mechanism according to claim 1, wherein a chute is provided at the bottom of the cross bar, the locking leg is locked in the chute, and the locking leg is provided with a locking device for locking or unlocking the locking leg to the chute.

7. A self-contained wellhead pulley mechanism according to claim 1, wherein the rollers are of nylon material.

8. A self-contained wellhead pulley mechanism according to claim 1, wherein two of the brushes are movably mounted along the length of the first connecting rod to move towards and away from each other.

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