Clamp driving assembly and clamp device for pipe

Abstract

The utility model relates to a clamp driving assembly and a clamp device of a pipe. The clamp driving assembly comprises a power assembly, a connecting base, a transmission assembly and a joint assembly. The power assembly is installed on the connecting base, the joint assembly is installed on the connecting base in a front-back moving mode, and the driving end of the power assembly is in transmission connection with the joint assembly through the transmission assembly so as to drive the joint assembly to move front and back. The joint assembly is rotatably mounted on the connecting seat, the clamp can be rotatably mounted on the connecting seat, the clamp can be rotatably connected to the joint assembly, and the power assembly can drive the joint assembly to move front and back through the transmission assembly to drive the clamp to be opened and closed. The pipe clamp has the beneficial effects that the whole structure is compact and reasonable, the transmission efficiency is high, sufficient power is provided for the clamp, the clamping capacity of the clamp is ensured, the pipe can be prevented from falling off during clamping, and compared with the prior art, the clamping capacity is higher, and the safety is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling, in particular to a clamp driving assembly and a clamp device of a pipe tool. Background Art

[0002] At present, with the improvement of automation level of oil drilling operation, automated drilling tool operation equipment (such as top drive, iron roughneck, automatic pipe laying machine, drilling table manipulator, etc.) is more and more widely used. Among them, the clamp device used to clamp the pipe is an important structure for drilling and drilling operations. The clamping capacity of the clamp device is crucial and is also an important prerequisite for ensuring the safety of drilling workers.

[0003] At present, traditional clamping devices mostly adopt a structure of a driver plus a multi-stage transmission. For example, the patent with publication number CN116378583A provides a pipe laying manipulator clamping device that can only grab a single pipe column, including a drive assembly, a hydraulic cylinder guide frame, a main clamp finger drive connecting rod, a main clamp finger assembly, a suspension connecting rod, a composite connecting rod, a reinforcing connecting rod, a rocker rod, a clamping plate, a bolt roller, and a pipe retaining mechanism. Although it solves the problem of adapting to pipes of different sizes, it has a complex structure and low transmission efficiency, resulting in poor clamping ability, low reliability, and easy problem of pipe falling off, posing a safety hazard.

[0004] Therefore, there is an urgent need for a clamp drive assembly and a clamp device for pipe fittings with high transmission efficiency and high safety. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a pipe clamp drive assembly and a clamp device, which solve the technical problem of poor clamping ability caused by low transmission efficiency in the prior art.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] On the one hand, the utility model provides a clamp driving assembly for a pipe fixture, comprising a power component, a connecting seat, a transmission component and a joint component; the power component is installed on the connecting seat, and the joint component is installed on the connecting seat movably forward and backward, and the driving end of the power component is connected to the joint component through the transmission component to drive the joint component to move forward and backward; the clamp can be rotatably installed on the connecting seat, and the clamp can be rotatably connected to the joint component, and the power component can drive the joint component to move forward and backward through the transmission assembly, thereby driving the clamp to open and close.

[0010] Optionally, the power assembly includes a servo motor, a reducer and a reducer base; the servo motor is connected to the reducer, the reducer is connected to the reducer base, the reducer base is fixed to the connecting base, and the output shaft of the reducer is connected to the transmission assembly as the driving end of the power assembly.

[0011] Optionally, the transmission assembly includes an adapter shaft, a transmission screw, a transmission nut and a limit assembly; the transmission screw is connected to the driving end of the power assembly through the adapter shaft, and the limit assembly is installed on the transmission screw to limit the axial and radial displacement of the transmission screw, so that the transmission screw can only make rotational motion under the drive of the power assembly; the transmission screw is connected to the joint assembly through the transmission nut, so that the transmission screw can drive the joint assembly to move forward and backward through the transmission nut when it rotates.

[0012] Optionally, the limit assembly includes at least two first limit bearings and one second limit bearing; the two first limit bearings are positively installed on the transmission screw, and the second limit bearing is reversely installed on the transmission screw; the two first limit bearings and the second limit bearings are arranged in sequence from front to back on the transmission screw.

[0013] Optionally, the first limit bearing and the second limit bearing are angular contact ball bearings.

[0014] Optionally, the joint assembly includes a thrust tube and a connecting joint; the thrust tube is installed on the connecting seat so as to be movably mounted forward and backward, one end of the thrust tube is connected to the transmission assembly, and the connecting joint is arranged at the other end of the thrust tube; the clamp can be rotatably connected to the connecting joint.

[0015] Optionally, at least two guide grooves in the front-rear direction are provided inside the connecting seat; the thrust tube is slidably mounted on the two guide grooves through two sliding blocks.

[0016] Optionally, an exhaust hole is provided on the thrust tube to balance the gas pressure inside and outside the thrust tube.

[0017] On the other hand, the utility model provides a clamp device, comprising the clamp drive assembly and the clamp; the clamp is rotatably mounted on the connecting seat, and the clamp is rotatably connected to the joint assembly.

[0018] (III) Beneficial effects

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides a pipe clamp driving assembly, which drives a transmission component to move back and forth in a connecting seat through a power component, and can drive the clamp to rotate in a horizontal plane to achieve clamping and releasing. The overall structure is compact and reasonable, and the transmission efficiency is high. Sufficient power is provided for the clamp, and the clamp's clamping ability is ensured, and the pipe can be prevented from falling off during clamping. Compared with the prior art, the clamp has a stronger clamping ability and higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a clamp driving assembly of a pipe fixture in Example 1 of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the power assembly in Example 1 of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the joint assembly in Example 1 of the utility model;

[0024] Figure 4 This is a schematic structural diagram of a clamping device in Example 2 of the utility model.

[0025] [Description of Reference Numerals]

[0026] 1: power assembly; 11: servo motor; 12: reducer; 13: reducer seat;

[0027] 2: Connecting seat;

[0028] 31: adapter shaft; 32: transmission screw; 33: transmission nut; 34: first limit bearing; 35: second limit bearing;

[0029] 41: thrust tube; 42: connecting joint; 43: slider; 44: exhaust hole. DETAILED DESCRIPTION

[0030] In order to better understand the above technical solution, the exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art. Among them, the directional nouns "front" and "rear" mentioned in this article are as follows: Figure 1 The orientation is used as a reference.

[0031] Embodiment 1:

[0032] like Figure 1As shown, this embodiment provides a clamp driving assembly for pipe fittings, including a power assembly 1, a connection seat 2, a transmission assembly and a joint assembly. The power assembly 1 is mounted on the connection seat 2, and the joint assembly is mounted on the connection seat 2 so as to be movable forward and backward. The driving end of the power assembly 1 is connected to the joint assembly through the transmission assembly to drive the joint assembly to move forward and backward; the clamp can be rotatably mounted on the connection seat 2, and the clamp can be rotatably connected to the joint assembly. The power assembly 1 can drive the joint assembly to move forward and backward through the transmission assembly to drive the clamp to open and close.

[0033] Specifically, the power component 1 drives the transmission component to move back and forth in the connecting seat 2, which can drive the clamp to rotate in the horizontal plane to achieve clamping and releasing. The overall structure is compact and reasonable, with high transmission efficiency, providing sufficient power for the clamp to ensure the clamp's clamping ability and prevent the pipe from falling off during clamping. Compared with the existing technology, the clamping ability is stronger and the safety is higher.

[0034] Furthermore, if Figure 1 and Figure 2 As shown, the power assembly 1 includes a servo motor 11, a reducer 12 and a reducer base 13; the servo motor 11 is connected to the reducer 12, the reducer 12 is connected to the reducer base 13, the reducer base 13 is fixed to the connecting base 2, and the output shaft of the reducer 12 is connected to the transmission assembly as the driving end of the power assembly 1.

[0035] Furthermore, if Figure 1 As shown, the transmission assembly includes an adapter shaft 31, a transmission screw 32, a transmission nut 33 and a limit assembly; the transmission screw 32 is connected to the output shaft of the reducer 12 through the adapter shaft 31, and the limit assembly is installed on the transmission screw 32 to limit the axial and radial displacement of the transmission screw 32, so that the transmission screw 32 can only make a rotational motion under the drive of the power assembly 1; the transmission screw 32 is connected to the joint assembly through the transmission nut 33, so that the transmission screw 32 can drive the joint assembly to move forward and backward through the transmission nut 33 when rotating. Specifically, the limit assembly includes at least two first limit bearings 34 and one second limit bearing 35; the two first limit bearings 34 are positively installed on the transmission screw 32, and the second limit bearing 35 is reversely installed on the transmission screw 32; the two first limit bearings 34 and the second limit bearing 35 are arranged in sequence from front to back on the transmission screw 32. In this embodiment, the first limit bearing 34 and the second limit bearing 35 are angular contact ball bearings.

[0036] Furthermore, if Figure 1 and Figure 3As shown, the joint assembly includes a thrust tube 41 and a connection joint 42; the thrust tube 41 is movably mounted on the connection seat 2, and in this embodiment, at least two guide grooves in the front-rear direction are provided inside the connection seat 2; the thrust tube 41 is slidably mounted on the two guide grooves through two sliders 43, and one end of the thrust tube 41 is connected to the transmission assembly. An exhaust hole 44 is provided on the thrust tube 41 to balance the gas pressure inside and outside the thrust tube 41. Specifically, the transmission nut 33 of the transmission assembly is connected to the thrust tube 41, and the connection joint 42 is provided at the other end of the thrust tube 41; the clamp can be rotatably connected to the connection joint 42. Specifically, the joint assembly includes a thrust tube 41 and a connection joint 42; the thrust tube 41 is movably mounted on the connection seat 2, and one end of the thrust tube 41 is connected to the transmission assembly, and the connection joint 42 is provided at the other end of the thrust tube 41; the clamp can be rotatably connected to the connection joint 42. The servo motor 11 drives the transmission screw 32 to rotate through the reducer 12. The transmission screw 32 can only rotate under the action of the first limit bearing 34 and the second limit bearing 35. The transmission nut 33 drives the thrust tube 41 to move forward and backward under the restriction of the slider 43 and the guide groove of the connecting seat 2, and drives the clamp to rotate through the connecting joint 42 to achieve clamping and releasing.

[0037] Embodiment 2:

[0038] like Figure 4 As shown, this embodiment provides a clamp device, including the clamp drive assembly and the clamp in embodiment 1. The clamp is rotatably mounted on the connecting seat 2, and the clamp is rotatably connected to the joint assembly. Specifically, the clamp is rotatably connected to the connecting joint 42.

[0039] In the description of the present utility model, it should be understood that 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be 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, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0042] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "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, unless they are contradictory.

[0043] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative 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 pipe clamp drive assembly, characterized in that: It comprises a power assembly (1), a connecting seat (2), a transmission assembly and a joint assembly; The power assembly (1) is mounted on the connection seat (2), the joint assembly is mounted on the connection seat (2) so as to be movable forward and backward, and the driving end of the power assembly (1) is connected to the joint assembly through the transmission assembly so as to drive the joint assembly to move forward and backward; The clamp can be rotatably mounted on the connecting seat (2), and the clamp can be rotatably connected to the joint assembly. The power assembly (1) can drive the joint assembly to move forward and backward through the transmission assembly, thereby driving the clamp to open and close.

2. The pipe clamp drive assembly according to claim 1, characterized in that: The power assembly (1) comprises a servo motor (11), a reducer (12) and a reducer base (13); The servo motor (11) is connected to the reducer (12), the reducer (12) is connected to the reducer base (13), the reducer base (13) is fixed to the connecting base (2), and the output shaft of the reducer (12) is connected to the transmission assembly as the driving end of the power assembly (1).

3. The clamp driving assembly of a pipe fixture as claimed in claim 1, characterized in that: The transmission assembly comprises a transfer shaft (31), a transmission screw (32), a transmission nut (33) and a limit assembly; The transmission screw (32) is transmission-connected to the driving end of the power assembly (1) via the adapter shaft (31); the limit assembly is installed on the transmission screw (32) to limit the axial and radial displacements of the transmission screw (32), so that the transmission screw (32) can only perform rotational motion under the drive of the power assembly (1); the transmission screw (32) is connected to the joint assembly via the transmission nut (33), so that when the transmission screw (32) rotates, it can drive the joint assembly to move forward and backward through the transmission nut (33).

4. The pipe clamp drive assembly according to claim 3, characterized in that: The limiting assembly comprises at least two first limiting bearings (34) and one second limiting bearing (35); The two first limit bearings (34) are positively mounted on the transmission screw (32), and the second limit bearing (35) is reversely mounted on the transmission screw (32); The two first limit bearings (34) and the two second limit bearings (35) are arranged in sequence from front to back on the transmission screw (32).

5. The pipe clamp driving assembly according to claim 4, characterized in that: The first limit bearing (34) and the second limit bearing (35) are angular contact ball bearings.

6. The pipe clamp driving assembly according to claim 1, characterized in that: The joint assembly comprises a thrust tube (41) and a connecting joint (42); The thrust tube (41) is installed on the connecting seat (2) in a manner that it can move forward and backward, one end of the thrust tube (41) is connected to the transmission assembly, and the connecting joint (42) is provided at the other end of the thrust tube (41); the clamp can be rotatably connected to the connecting joint (42).

7. The pipe clamp driving assembly according to claim 6, characterized in that: The connecting seat (2) is provided with at least two guide grooves in the front-rear direction; The thrust tube (41) is slidably mounted on the two guide grooves via two sliding blocks (43).

8. The pipe clamp driving assembly according to claim 6, characterized in that: The thrust tube (41) is provided with an exhaust hole (44) to balance the gas pressure inside and outside the thrust tube (41).

9. A clamping device, characterized in that: A pipe clamp drive assembly comprising the pipe clamp according to any one of claims 1 to 8 and the clamp; The clamp is rotatably mounted on the connecting seat (2), and the clamp is rotatably connected to the joint assembly.

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