Hydraulic pulling device for sleeve drill rod

Abstract

The utility model relates to a pulling hydraulic device of a sleeve drill rod, which comprises a bottom plate, a clamping component arranged on the bottom plate and a first driving piece fixed on the bottom plate, the clamping component is used for clamping the drill rod, and the first driving piece is connected with the clamping component and used for driving the clamping component to move on the bottom plate. The sleeve drill rod is clamped through the clamping assembly, and under driving of the first driving piece, the sleeve drill rod can be conveniently driven to be pulled out.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling rod pulling out, in particular to a hydraulic device for pulling out a drill rod. Background Art

[0002] Drilling is a commonly used technical means in geological surveys, mineral exploration, engineering surveys, etc.

[0003] During the construction process of the drilling rig, the phenomenon that the drill bit gets stuck in the well and cannot move freely due to various reasons is called drill sticking.

[0004] The drill may get stuck due to formation reasons, poor drilling fluid performance, improper operation, etc. Some portable diesel drills and manual shallow drills may also get stuck due to insufficient power. In many cases, the drill rod can be pulled out by adding force, but the drilling rig does not have enough pulling force and needs to use other tools.

[0005] The conventional drill rod extraction device is complicated to operate when clamping drill rods of different diameters. In addition, the drill rod is easily disengaged from the device when being extracted because the clamping force applied to the drill rod is insufficient. This makes the device inconvenient to use. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a device which can stably clamp a drill rod and conveniently pull out the drill rod.

[0007] The utility model solves the above-mentioned technical problem with the following technical solution: a hydraulic device for pulling out a drill rod, comprising a base plate, a clamping assembly arranged on the base plate and a first driving member fixed on the base plate, wherein the clamping assembly is used to clamp the drill rod, and the first driving member is connected to the clamping assembly and is used to drive the clamping assembly to move on the base plate.

[0008] The beneficial effect of the utility model is that the drill rod is clamped by the clamping assembly, and the drill rod can be conveniently driven to perform a pulling operation under the drive of the first driving member.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the clamping assembly includes a linear sliding assembly and a clamping assembly. The clamping assembly is assembled on the base plate through the linear sliding assembly and can slide relative to the base plate. The first driving member is connected to the clamping assembly.

[0011] The clamping assembly of the above technical solution can clamp the drill rod, and under the drive of the linear sliding assembly, the clamping assembly can drive the drill rod to move, making it convenient to pull out the drill rod.

[0012] Furthermore, the linear sliding assembly includes a fixed seat, a guide rod and a sliding sleeve. The fixed seat is fixedly assembled on the base plate, one end of the guide rod is fixedly assembled on the fixed seat, the sliding sleeve is coaxially sleeved on the outside of the guide rod and slidably connected thereto, the sliding sleeve is connected to a clamping assembly, and the clamping assembly is fixedly connected to the sliding sleeve.

[0013] In the above technical solution, after the clamping assembly fixes one end of the drill rod, the first driving member drives the sleeve to move along the guide rod, and the sleeve drives the clamping assembly to pull up the drill rod, thereby realizing directional pulling out of the drill rod.

[0014] Furthermore, the clamping assembly includes a fixed part, a movable clamping part and a second driving part, the fixed part is connected and fixed to the sliding sleeve, the fixed part has a fixed clamping part, the movable clamping part is slidably assembled on the fixed part, the second driving part is fixedly assembled on the fixed part through a connecting seat and is connected to the movable clamping part, and the second driving part is used to drive the movable clamping part to move closer to or away from the fixed clamping part.

[0015] When the above technical solution is used to clamp the drill rod, the drill rod is first set between the fixed part and the movable clamping part, and by turning on the second driving part, the second driving part drives the movable clamping part to move toward one end of the fixed part 2, thereby limiting the drill rod between the fixed part and the movable clamping part for convenient and quick fixation.

[0016] Furthermore, the first driving member is connected to the fixing member, and a moving direction of the movable clamping portion and a moving direction of the fixing member are perpendicular to each other.

[0017] In the above technical solution, after the drill rod is clamped and fixed, the first driving member drives the fixing member to move upward and drives the drill rod to move upward together, so that the device can clamp the drill rod horizontally and then pull it upward.

[0018] Furthermore, the first driving component is one of a jack, an electric push rod and a hydraulic cylinder.

[0019] Furthermore, the second driving component is one of a jack, an electric push rod and a hydraulic cylinder.

[0020] The above technical solution configures the first driving member and the second driving member as jacks, and controls the jacks, thereby making the clamping and pulling out of the drill rod more stable and making the device easier to move.

[0021] Furthermore, the fixing member includes a straight section and a bent section vertically arranged at one end of the straight section, the bent section constitutes the fixed clamping part, the straight section extends along the moving trajectory of the movable clamping part, the straight section is connected and fixed to the sliding sleeve, the second driving member is installed on the straight section, and the movable clamping part is slidably assembled on the straight section.

[0022] The above technical solution configures the fixing member as a straight section and a bent section, so that when the movable clamping part slides on the straight section, the drill rod can be conveniently clamped in cooperation with the bent section.

[0023] Furthermore, a non-slip rubber pad is provided on the relatively close side of the movable clamping portion and the bending section.

[0024] When the drill rod is clamped in the above technical solution, the anti-skid rubber pad can effectively increase the friction between the movable clamping part and the bending section and the drill rod when in contact, thereby improving the stability when clamping the drill rod.

[0025] Furthermore, the number of the linear sliding components is one group or multiple groups that are spaced apart from each other.

[0026] The above technical solution provides one or more sets of linear sliding components. When assembling the multiple sets of linear sliding components, they are arranged parallel to each other on the bottom plate, thereby improving the structural strength of the device when it is pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure in an embodiment of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Bottom plate; 2. Fixing member; 3. Moving clamping part; 4. Second driving member; 5. Connecting seat; 6. Sliding sleeve; 7. Guide rod; 8. Fixing seat; 9. First driving member; 10. Anti-skid rubber pad. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] Example

[0032] like Figure 1 As shown, a hydraulic device for pulling out a drill rod comprises a base plate 1, a clamping assembly arranged on the base plate 1 and a first driving member 9 fixed on the base plate 1. The clamping assembly is used to clamp the drill rod. The first driving member 9 is connected to the clamping assembly and is used to drive the clamping assembly to move on the base plate 1.

[0033] The working principle is: when the drill rod needs to be pulled out, the clamping assembly first clamps the drill rod and drives the drill rod to move under the drive of the first driving member 9, so that the drill rod can be clamped and pulled out by the device.

[0034] The above technical solution can clamp the drill rod by the clamping assembly, and under the drive of the first driving member 9, the drill rod can be conveniently driven to perform a pulling operation.

[0035] Preferably, the clamping assembly includes a linear sliding assembly and a clamping assembly. The clamping assembly is assembled on the base plate 1 through the linear sliding assembly and can slide relative to the base plate 1. The first driving member 9 is connected to the clamping assembly.

[0036] The working principle is: the drill rod is clamped and fixed by the clamping assembly, and the first driving member 9 drives the clamping assembly to move on the linear sliding assembly, thereby realizing the pulling function of the drill rod.

[0037] The clamping assembly of the above technical solution can clamp the drill rod, and under the drive of the linear sliding assembly, the clamping assembly can drive the drill rod to move, making it convenient to pull out the drill rod.

[0038] Preferably, the linear sliding assembly includes a fixed seat 8, a guide rod 7 and a sleeve 6, the fixed seat 8 is fixedly assembled on the base plate 1, one end of the guide rod 7 is fixedly assembled on the fixed seat 8, the sleeve 6 is coaxially sleeved on the outside of the guide rod 7 and slidably connected thereto, the sleeve 6 is connected to the clamping assembly, and the clamping assembly is fixedly connected to the sleeve 6.

[0039] The working principle is: after the clamping assembly clamps the drill rod, by assembling the sliding sleeve 6 on the clamping assembly, the first driving member 9 drives the clamping assembly to move linearly on the guide rod 7, so that the drill rod can be pulled out along the direction of the guide rod 7.

[0040] After the clamping assembly fixes one end of the drill rod, the above technical solution drives the sleeve 6 to move along the guide rod 7 under the drive of the first driving member 9, and the sleeve 6 drives the clamping assembly to pull up the drill rod, thereby realizing directional pulling out of the drill rod.

[0041] Preferably, the clamping assembly includes a fixed member 2, a movable clamping portion 3 and a second driving member 4. The fixed member 2 is connected and fixed to the sliding sleeve 6. The fixed member 2 has a fixed clamping portion. The movable clamping portion 3 is slidably assembled on the fixed member 2. The second driving member 4 is fixedly assembled on the fixed member 2 through a connecting seat 5 and is connected to the movable clamping portion 3. The second driving member 4 is used to drive the movable clamping portion 3 to move closer to or away from the fixed clamping portion.

[0042] The working principle is: when the drill rod needs to be clamped, the second driving member 4 drives the mobile clamping part 3 to move along the length direction of the fixing member 2, and the mobile clamping part 3 and the fixed clamping teeth of the fixing member 2 are brought close to each other to clamp the drill rod. After clamping, the first driving member 9 is used to drive the clamping assembly and the drill rod to be pulled out.

[0043] When the above technical solution is used to clamp the drill rod, the drill rod is firstly arranged between the fixed clamping part and the movable clamping part 3 of the fixing member 2, and by opening the second driving member 4, the second driving member 4 drives the movable clamping part 3 to move toward one end of the fixing member 2, thereby limiting the drill rod between the fixing member 2 and the movable clamping part 3 for convenient and quick fixation.

[0044] Preferably, the first driving member 9 is connected to the fixing member 2 , and the moving direction of the movable clamping portion 3 and the moving direction of the fixing member 2 are perpendicular to each other.

[0045] The working principle is as follows: first, the second driving member drives the mobile clamping part 3, and uses the mobile clamping part 3 to cooperate with the fixed clamping part of the fixing member 2 to clamp and fix the end of the drill rod, and the first driving member 9 drives the entire fixing member 2 to move, thereby pulling out the drill rod.

[0046] In the above technical solution, after the drill rod is clamped and fixed, the first driving member drives the fixing member 2 to move upward, and drives the drill rod to move upward together, so that the device can clamp the drill rod horizontally and then pull it upward.

[0047] Preferably, the first driving member 9 is a jack.

[0048] Preferably, the second driving member 4 is a jack.

[0049] The working principle is as follows: when the drill rod is clamped and fixed, the second driving member 4 is operated. Since the second driving member 4 is a jack, it has good performance, so that the drill rod is clamped more stably. When the drill rod is clamped or fixed, the first driving member 9, which is also a jack, drives the entire clamping assembly and the drill rod to rise, saving manpower.

[0050] The above technical solution configures the first driving member 9 and the second driving member 4 as jacks, and controls the jacks to make the clamping and pulling of the drill rod more stable and the device easier to move.

[0051] Preferably, the fixing member 2 includes a straight section and a bent section vertically arranged at one end of the straight section, the bent section constitutes a fixed clamping portion, the straight section extends along the moving trajectory of the movable clamping portion 3, the straight section is connected and fixed to the sliding sleeve 6, the second driving member 4 is installed on the straight section, and the movable clamping portion 3 is slidably assembled on the straight section.

[0052] The working principle is as follows: when the movable clamping part 3 moves on the straight section of the fixing member 2, the movable clamping part 3 moves toward the bent section and cooperates with the bent section to clamp the drill rod.

[0053] The above technical solution configures the fixing member 2 as a straight section and a bent section, so that when the movable clamping part 3 slides on the straight section, the drill rod can be conveniently clamped in cooperation with the bent section.

[0054] Preferably, a non-slip rubber pad 10 is provided on the relatively close side of the movable clamping portion 3 and the bending section.

[0055] The working principle is: by arranging an anti-skid rubber pad 10 on the opposite side of the movable clamping part 3 and the bending section, when clamping the drill rod, the anti-skid rubber pad 10 can effectively increase the friction between the movable clamping part 3 and the bending section and the drill rod, thereby improving the clamping stability of the device.

[0056] When the drill rod is clamped in the above technical solution, the anti-skid rubber pad can effectively increase the friction between the movable clamping part and the bending section and the drill rod when in contact, thereby improving the stability when clamping the drill rod.

[0057] Preferably, the number of the linear sliding components is one group or multiple groups that are spaced apart from each other.

[0058] The working principle is: by setting up multiple sets of linear sliding components, the dedicated clamping device can provide sufficient structural strength when clamping the drill rod and moving on it to resist the resistance caused by pulling out the drill rod.

[0059] The above technical solution arranges multiple groups of linear sliding components. When assembling the multiple groups of linear sliding components, they are arranged parallel to each other on the bottom plate, thereby improving the structural strength of the device when it is pulled out.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hydraulic device for pulling out a drill pipe, characterized in that: It comprises a base plate (1), a clamping assembly arranged on the base plate (1) and a first driving member (9) fixed on the base plate (1), wherein the clamping assembly is used to clamp a drill rod, and the first driving member (9) is connected to the clamping assembly and is used to drive the clamping assembly to move on the base plate (1); The clamping assembly comprises a linear sliding assembly and a clamping assembly, wherein the clamping assembly is assembled on the base plate (1) through the linear sliding assembly and can slide relative to the base plate (1), and the first driving member (9) is connected to the clamping assembly; The linear sliding assembly comprises a fixed seat (8), a guide rod (7) and a sliding sleeve (6); the fixed seat (8) is fixedly mounted on the base plate (1); one end of the guide rod (7) is fixedly mounted on the fixed seat (8); the sliding sleeve (6) is coaxially sleeved outside the guide rod (7) and slidably connected thereto; the sliding sleeve (6) is connected to a clamping assembly, and the clamping assembly is fixedly connected to the sliding sleeve (6); The clamping assembly comprises a fixed member (2), a movable clamping portion (3) and a second driving member (4); the fixed member (2) is connected and fixed to a sliding sleeve (6); the fixed member (2) has a fixed clamping portion; the movable clamping portion (3) is slidably assembled on the fixed member (2); the second driving member (4) is fixedly assembled on the fixed member (2) via a connecting seat (5) and is connected to the movable clamping portion (3); the second driving member (4) is used to drive the movable clamping portion (3) to move closer to or away from the fixed clamping portion.

2. A hydraulic device for pulling out a drill pipe according to claim 1, characterized in that: The first driving member (9) is connected to the fixing member (2), and the moving direction of the movable clamping portion (3) and the moving direction of the fixing member (2) are perpendicular to each other.

3. A hydraulic device for pulling out a drill pipe according to claim 1, characterized in that: The first driving member (9) is a jack, an electric push rod, or a hydraulic cylinder.

4. A hydraulic device for pulling out a drill pipe according to claim 1, characterized in that: The second driving member (4) is a jack, an electric push rod, or a hydraulic cylinder.

5. The hydraulic device for pulling out a drill pipe according to claim 1, characterized in that: The fixing member (2) comprises a straight section and a bent section vertically arranged at one end of the straight section, the bent section constitutes the fixed clamping portion, the straight section extends along the moving track of the movable clamping portion (3), the straight section is connected and fixed to the sliding sleeve (6), the second driving member (4) is mounted on the straight section, and the movable clamping portion (3) is slidably assembled on the straight section.

6. A hydraulic device for pulling out a drill pipe according to claim 5, characterized in that: The movable clamping portion (3) and the side of the bending section that are relatively close to each other are both provided with an anti-slip rubber pad (10).

7. A hydraulic device for pulling out a drill pipe according to claim 1, characterized in that: The number of the linear sliding components is one group or multiple groups that are spaced apart from each other.

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