CN220769400U - Suspension structure and iron roughneck - Google Patents

Abstract

The utility model discloses a suspension structure and an iron roughneck, wherein the suspension structure comprises a mounting frame, a suspension arm and a blocking device, the suspension arm is provided with a connecting part and a rotating part, the rotating part is rotatably arranged on the mounting frame along an up-down direction axis, the connecting part is used for connecting a hydraulic clamp, the blocking device is arranged on a suspension arm rotating path to apply blocking force to the suspension arm so as to balance the reactive torque of a part of the suspension arm, the mounting frame is arranged so as to mount the suspension arm, and the suspension arm and the blocking device are arranged so as to bear the reactive torque transmitted by the suspension arm and enable the suspension arm to have a certain rotating stroke, so that the reactive torque of the suspension arm is buffered when the suspension arm rotates, the torque is not directly transmitted to the mounting frame, the damage of the mounting frame due to overlarge torque can be effectively prevented, and the problem that the reactive torque device of the existing iron roughneck possibly twists the whole mechanism is solved.

Description

Suspension structure and iron roughneck

Technical Field

The utility model relates to the technical field of iron roughneck, in particular to a suspension structure and an iron roughneck.

Background

At present, in the petroleum industry, when the back-up tong of hydraulic tong or iron driller does not clamp or skid, main tong receives reverse torque because of the rotatory drilling rod of binding clip, and main tong moment of torsion can't be offset by the back-up tong this moment, thereby make the suspension arm frame can twist along with the pincers body, take place to fracture even, cause the incident, in order to prevent main tong from transmitting moment of torsion to the cantilever crane, current hydraulic tong or iron driller can set up anti-torque device generally, with moment of torsion conduction to hydraulic tong or iron driller mounting, but if the moment of torsion is too big, turn round the whole mechanism of bad easily.

Disclosure of Invention

The utility model mainly aims to provide a suspension structure and an iron roughneck, and aims to solve the problem that the whole mechanism can be damaged due to reactive torque of the existing iron roughneck.

To achieve the above object, the present utility model provides a suspension structure for an iron roughneck, comprising:

a mounting frame;

the suspension arm is provided with a connecting part and a rotating part, the rotating part is rotatably arranged on the mounting frame along an axis extending vertically, and the connecting part is used for connecting the hydraulic pliers; the method comprises the steps of,

and the blocking device is arranged on the rotating path of the suspension arm so as to apply blocking force to the suspension arm and balance the reactive torque of part of the suspension arm.

Optionally, the blocking device includes an elastic deformation portion disposed on the rotation path of the boom, so as to form an elastic blocking force after deformation.

Optionally, the mounting includes a longitudinally extending rail, and the blocking device includes:

the mounting cylinder is arranged on the suspension arm; the method comprises the steps of,

a sliding part movably installed in the installation cylinder along the axis extending direction of the installation cylinder;

the elastic deformation part is arranged in the mounting cylinder and is used for enabling the sliding part to abut against the cross rod.

Optionally, the mounting cylinder, the sliding part and the elastic deformation part are arranged to be retarding structural units in one-to-one correspondence, and the retarding structural units are arranged in two and are arranged at two sides of the cross rod at intervals along the width direction of the cross rod.

Optionally, two blocking structure units are arranged, and are arranged at two ends of the cross rod at intervals along the length direction of the cross rod.

Optionally, the mounting frame includes:

a cross beam;

the suspension shaft is arranged on the cross beam and extends vertically, and comprises a first shaft section and a second shaft section which are distributed vertically; the method comprises the steps of,

the cross rod is sleeved on the first shaft section in a rotation stopping way, and the blocking device is arranged between the cross rod and the suspension arm;

wherein the boom is rotatably mounted on the second shaft section.

Optionally, the suspension shaft is rotatably mounted on the cross beam along a transverse extension axis, wherein the extension direction of the rotation axis of the suspension shaft and the extension direction of the cross beam are intersected in a horizontal plane;

the suspension structure further comprises an angle adjusting structure arranged between the suspension arm and the cross beam and used for adjusting the rotation angle of the suspension shaft.

Optionally, the angle adjusting structure includes:

the two mounting loop bars are respectively and spherically hinged to the cross beam and the suspension arm at the opposite ends; the method comprises the steps of,

the two ends of the movable loop bar are respectively penetrated in the two mounting loop bars, and at least one end of the movable loop bar can be movably mounted on the corresponding mounting loop bar along the axial direction of the movable loop bar so that the distance between the two mounting loop bars can be adjusted.

Optionally, the device further comprises a detection device arranged on the suspension arm and used for detecting the rotation stroke of the suspension arm.

In addition, the utility model also provides an iron roughneck comprising the suspension structure.

According to the technical scheme, the mounting frame is arranged so as to mount the suspension arm, the connecting part is arranged so as to be connected with the hydraulic pliers of the iron driller, the rotating part is arranged so that the suspension arm can rotate along with the rotation of the hydraulic pliers, and the blocking device is arranged so as to delay the rotation of the suspension arm, so that the suspension arm and the blocking device can bear the reactive torque transmitted by the suspension arm, and the suspension arm has a certain rotation stroke so as to buffer the reactive torque of the suspension arm when the suspension arm rotates, so that the torque is not directly transmitted to the mounting frame, the mounting frame can be effectively prevented from being damaged due to overlarge torque, and the problem that the reactive torque device of the existing iron driller possibly twists the whole mechanism is solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of a suspension structure according to the present utility model;

FIG. 2 is a schematic cross-sectional view of the suspension structure of FIG. 1;

fig. 3 is a schematic cross-sectional view of the blocking device of fig. 1.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Suspension structure	31	Elastic deformation part
1	Mounting rack	32	Mounting cylinder
				11	Cross beam	33	Sliding part
12	Suspension shaft	4	Angle adjusting structure
				13	Cross bar	41	Mounting loop bar
2	Suspension arm	42	Movable sleeve rod
				3	Retarding device	5	Detection device

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the case where a directional instruction is involved in the embodiment of the present utility model, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

At present, in the petroleum industry, when the back-up tongs of hydraulic tongs or iron driller are not clamped or slip, the main tongs receive reverse torque due to the rotary drill rod of the tong head, and the torque of the main tongs cannot be counteracted by the back-up tongs at the moment, so that the cantilever crane twists along with the tongs body, even breaks, and safety accidents are caused, in order to prevent the main tongs from transmitting the torque to the cantilever crane, the existing hydraulic tongs or iron driller usually set a reactive torque device to transmit the torque to the hydraulic tongs or iron driller fixing piece, but if the torque is too large, the whole mechanism is easily twisted.

In view of the above, the utility model provides a suspension structure for an iron roughneck, which aims to solve the problem that the whole mechanism may be damaged by the reactive torque device of the existing iron roughneck. Fig. 1 to 3 are schematic structural diagrams of an embodiment of an iron roughneck according to the present utility model.

Referring to fig. 1 to 3, the suspension structure 100 includes a mounting frame 1, a boom 2, and a blocking device 3, wherein the boom 2 has a connection portion and a rotation portion, the rotation portion is rotatably mounted on the mounting frame 1 along an axis extending vertically, the connection portion is used for connecting a hydraulic clamp, and the blocking device 3 is disposed on a rotation path of the boom 2 to apply a blocking force to the boom 2 so as to balance a reactive torque of a portion of the boom 2.

According to the technical scheme, the mounting frame 1 is arranged so as to mount the suspension arm 2, the connecting part is arranged so as to connect the hydraulic pliers of the iron roughneck, the rotating part is arranged so that the suspension arm 2 can rotate along with the rotation of the hydraulic pliers, and the blocking device 3 is arranged so as to delay the rotation of the suspension arm 2, so that the suspension arm 2 and the blocking device 3 can bear the reactive torque transmitted by the suspension arm 2, and the suspension arm 2 has a certain rotation stroke so as to buffer the reactive torque of the suspension arm 2 when the suspension arm 2 rotates, so that the torque is not directly transmitted to the mounting frame 1, the problem that the conventional reactive torque device of the iron roughneck can be damaged due to overlarge torque is solved.

The blocking device 3 may be implemented in various ways, and may be configured to block the boom 2 by using a damping structure, or may be configured to block the boom 2 by using an elastic member, specifically in this embodiment, please refer to fig. 1 and 3, the blocking device 3 includes an elastic deformation portion 31 disposed on a rotation path of the boom 2, so as to form an elastic blocking force after deformation, and when the boom 2 rotates with the hydraulic pliers, the elastic deformation portion 31 is compressed and contracted so as to block the boom 2 from rotating, so that by setting the elastic deformation portion 31, not only can the rotation of the boom 2 be delayed, but also the boom 2 can be reset after the torque disappears. It is to be understood that the elastic deformation portion 31 may be a spring, a rubber, or the like, and the present utility model is not limited thereto.

Further, the mounting frame 1 includes a longitudinally extending cross bar 13, the blocking device 3 includes a mounting cylinder 32 and a sliding part 33, the mounting cylinder 32 is disposed on the boom 2, the sliding part 33 is movably mounted in the mounting cylinder 32 along the extending direction of the axis of the mounting cylinder 32, the elastic deformation part 31 is disposed in the mounting cylinder 32, so that the sliding part 33 abuts against the cross bar 13, when the boom 2 rotates, the mounting cylinder 32 synchronously rotates, so that the elastic deformation part 31 is compressed and contracted, so that the torque of the boom 2 is converted into the pressure of the elastic deformation part 31, and the pressure of the elastic deformation part 31 is transmitted to the cross bar 13, so that the torque transmitted by the elastic deformation part 31 is borne by the cross bar 13, and the elastic deformation part 31 and the sliding part 33 are mounted by the mounting cylinder 32, so that the cross bar 13 abuts against, so that the torque transmitted by the boom 2 is transmitted to the cross bar 13. It is understood that transverse means the length of the cross bar 13.

Since the position of the sliding part 33 changes when the boom 2 is turned, in this embodiment, a sliding groove is provided at the side end of the cross bar 13 to enable the sliding part 33 to slide along the axial direction of the cross bar 13, so that the sliding part 33 can be adapted to the turning of the boom 2.

Since the boom 2 may rotate in a forward direction or in a reverse direction, and the single elastic deformation portion 31 can only block rotation in one direction, in this embodiment, the mounting cylinder 32, the sliding portion 33, and the elastic deformation portion 31 are set to be blocking structural units in a one-to-one correspondence, and the blocking structural units are set to be two, and are set at two sides of the cross bar 13 at intervals along the width direction of the cross bar 13, so that the blocking device 3 can be used for both forward rotation of the boom 2 and reverse rotation of the boom 2 by setting two blocking structural units at two sides of the cross bar 13, thereby helping to expand the application range of the blocking device 3.

In order to increase the retarding effect of the retarding device 3, in this embodiment, two retarding structural units are disposed at two ends of the cross bar 13 at intervals along the length direction of the cross bar 13, so that the retarding effect of the retarding device 3 is increased by disposing two retarding structural units at intervals along the length direction of the cross bar, thereby helping to improve the resistance of the suspension structure 100 to torque.

In order to mount the boom 2 on the mounting frame 1, in this embodiment, referring to fig. 1 and 2, the mounting frame 1 includes a cross beam 11, a suspension shaft 12 and a cross beam 13, the suspension shaft 12 is disposed on the cross beam 11 and extends vertically, the suspension shaft 12 includes a first shaft section and a second shaft section that are distributed vertically, the cross beam 13 is rotationally sleeved on the first shaft section, the blocking device 3 is disposed between the cross beam 13 and the boom 2, wherein the boom 2 is rotationally mounted on the second shaft section, so that the boom 2 can be rotationally mounted on the cross beam 11 by setting the boom 2 shaft, and simultaneously, by setting the cross beam 13, not only can the torque transmitted by the boom 2 be transmitted, but also the cross beam can be limited to move vertically so as to support the cross beam 13.

In order to limit the rotation of the cross bar 13, in this embodiment, the first shaft section is disposed in a polygonal shape, and the cross bar 13 is correspondingly provided with a polygonal hole through which the first shaft section passes, so as to prevent the cross bar 13 from rotating. Of course, in other embodiments, the cross bar 13 and the first shaft section may be engaged with the engaging groove by an engaging rib.

The suspension shaft 12 may be fixedly mounted on the cross beam 11, or may be rotatably mounted on the cross beam 11, which is not limited in this utility model, specifically, in this embodiment, the suspension shaft 12 is rotatably mounted on the cross beam 11 along a transverse extending axis, where an extending direction of the rotation axis of the suspension shaft 12 and an extending direction of the cross beam 13 intersect in a horizontal plane, and the suspension structure 100 further includes an angle adjusting structure 4 disposed between the suspension arm 2 and the cross beam 11 to adjust a rotation angle of the suspension shaft 12, so that the suspension shaft 12 adopts a rotation mode to drive the suspension arm 2 to tilt with the cross beam 13, and simultaneously, by setting the angle adjusting structure 4 to adjust a rotation angle of the suspension shaft 12, the suspension shaft 12 can be tilted left or right, so that the suspension structure 100 can adapt to a mouse hole working condition, thereby helping to promote a suitable range of the suspension structure 100. It is understood that the lateral direction refers to the width direction of the cross bar 13 or the cross bar 11.

Further, the angle adjusting structure 4 includes two installation loop bars 41 and a movable loop bar 42, wherein one ends of the two installation loop bars 41, which deviate from each other, are respectively ball-hinged to the cross beam 11 and the boom 2, two ends of the movable loop bar 42 are respectively arranged in the two installation loop bars 41 in a penetrating manner, at least one end of the movable loop bar 42 can be movably installed on the corresponding installation loop bar 41 along the axial direction thereof, so that the distance between the two installation loop bars 41 can be adjusted, and therefore, by setting the movable loop bar 42, the two installation loop bars 41 can be mutually close to or far away from each other, so as to adjust the length of the angle structure, and thereby adjust the rotation angle of the suspension shaft 12. Further, two angle adjusting structures 4 are provided, and two angle adjusting structures are respectively provided at two ends of the cross beam 11, so that two angle adjusting structures 4 are provided to simultaneously adjust two ends of the boom 2, which is favorable for reducing the pressure born by a single angle structure, and thus is favorable for stably fixing the suspension shaft 12 at a set angle.

In order to prevent the torque transmitted by the boom 2 from being excessively large, in this embodiment, a detecting device 5 provided to the boom 2 is further included to detect the rotational stroke of the boom 2, and since the larger the rotational angle of the boom 2 is, the larger the torque transmitted by the boom 2 is, for this purpose, the damage of the suspension result due to the excessively large torque is prevented by providing the detecting device 5 to detect the rotational stroke of the boom 2. It will be appreciated that the detection structure may be a proximity switch, a displacement sensor, etc., and the utility model is not limited thereto.

The boom 2 may have various shapes, such as a straight line, or an arc shape, which is not limited in this aspect of the utility model, and specifically, in this embodiment, the boom 2 is in an arc shape, where the rotating portion includes a middle portion of the boom 2, and the connecting portion includes two ends of the boom 2, so that the middle portion of the boom 2 may be rotatably mounted on the mounting frame 1, and two ends of the boom 2 may be connected with the hydraulic pliers, so that the boom 2 may uniformly transmit torque, thereby helping to promote stability of the suspension structure 100.

In addition, the present utility model also provides an iron roughneck including the suspension structure 100. It should be noted that, the structure of the suspension structure 100 in the iron roughneck may refer to the embodiment of the suspension structure 100 described above, and will not be described herein again; because the suspension structure 100 is used in the iron roughneck provided by the present utility model, the embodiments of the iron roughneck provided by the present utility model include all the technical solutions of all the embodiments of the suspension structure 100, and the achieved technical effects are identical, and are not described in detail herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. A suspension structure for an iron roughneck, characterized in that the suspension structure (100) comprises:

a mounting frame (1);

the suspension arm (2) is provided with a connecting part and a rotating part, the rotating part is rotatably arranged on the mounting frame (1) along an axis extending vertically, and the connecting part is used for connecting the hydraulic pliers; the method comprises the steps of,

and the blocking device (3) is arranged on the rotating path of the suspension arm (2) so as to apply blocking force to the suspension arm (2) to balance the reactive torque of part of the suspension arm (2).

2. A suspension structure according to claim 1, characterized in that the blocking means (3) comprise an elastic deformation portion (31) provided in the rotational path of the boom (2) for forming an elastic blocking force after deformation.

3. A suspension structure according to claim 2, wherein the mounting frame (1) comprises a longitudinally extending cross bar (13), the retarding device (3) comprising:

a mounting cylinder (32) provided on the boom (2); the method comprises the steps of,

a sliding part (33) movably mounted in the mounting cylinder (32) along the axis extending direction of the mounting cylinder (32);

the elastic deformation part (31) is arranged in the mounting cylinder (32) and used for enabling the sliding part (33) to abut against the cross rod (13).

4. A suspension structure according to claim 3, wherein the mounting cylinder (32), the sliding portion (33) and the elastic deformation portion (31) are provided in one-to-one correspondence as retarding structural units, the retarding structural units being provided in two and being provided on both sides of the cross bar (13) at intervals in the width direction of the cross bar.

5. A suspension structure according to claim 4, wherein two of said blocking structure units are provided and are provided at both ends of said cross bar (13) at intervals along the length direction of said cross bar.

6. A suspension structure according to claim 1, wherein the mounting frame (1) comprises:

a cross beam (11);

the suspension shaft (12) is arranged on the cross beam (11) and extends in the up-down direction, and the suspension shaft (12) comprises a first shaft section and a second shaft section which are distributed in the up-down direction; the method comprises the steps of,

the cross rod (13) is sleeved on the first shaft section in a rotation stopping way, and the blocking device (3) is arranged between the cross rod (13) and the suspension arm (2);

wherein the suspension arm (2) is rotatably mounted on the second shaft section.

7. A suspension structure according to claim 6, wherein the suspension shaft (12) is rotatably mounted to the cross member (11) along a laterally extending axis, wherein a direction in which the axis of rotation of the suspension shaft (12) extends and a direction in which the cross member (13) extends intersect in a horizontal plane;

the suspension structure (100) further comprises an angle adjusting structure (4) arranged between the suspension arm (2) and the cross beam (11) and used for adjusting the rotation angle of the suspension shaft (12).

8. A suspension structure according to claim 7, wherein the angle-adjusting structure (4) comprises:

the two mounting loop bars (41) are respectively and spherically hinged to the cross beam (11) and the suspension arm (2) at the opposite ends; the method comprises the steps of,

the movable loop bars (42) are respectively arranged in the two mounting loop bars (41) in a penetrating way, and at least one end of each movable loop bar (42) can be movably mounted on the corresponding mounting loop bar (41) along the axial direction of the movable loop bar so that the distance between the two mounting loop bars (41) can be adjusted.

9. A suspension structure according to claim 1, further comprising detection means (5) provided to the boom (2) for detecting the turning travel of the boom (2).

10. An iron roughneck comprising a suspension structure as claimed in any one of claims 1 to 9.