A driving roller and execution assembly for pipe tooling
By designing a driving roller for pipe tooling, and using metal rings to support non-metal rings to form a roller body, the problem of major damage to pipe tooling is solved by traditional tools, and the effect of reducing damage and providing greater rotation torque is achieved.
Patent Information
- Application Number
- CN202421471124.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-26
AI Technical Summary
In the prior art, traditional pipe tool tool bolting tools need to apply a large clamping force and torque during the buckle and shackle process, resulting in excessive contact between the metal surface of the pipe tool tool and causing damage.
A driving roller for pipe tooling is designed, and a metal ring supports the non-metal ring to form a roller body. The non-metal part of the roller body is buckled and shackled against the pipe tooling through the non-metal part of the roller body, reducing damage to the pipe tooling, and providing greater rotational torque through the high coefficient of friction and wear resistance of the non-metal ring.
Under the same clamping force, the non-metal ring significantly reduces damage to the pipe tooling and provides greater rotation torque, improves the stability and wear resistance of the force, and extends the service life.
Smart Images
Figure CN222746046U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil and gas drilling, in particular to a driving roller and an execution assembly for a pipe tool. Background Art
[0002] In the process of oil and gas drilling, pipe tooling is a common and very important drilling equipment. Pipe tooling includes lifting nipples and conversion joints. The lifting nipples are special tools used to lift and lower shoulderless pipes (drill collars, power drills, tools, etc.). One end of this shoulderless pipe is an interface and the other end is a joint. During use, there is no need for traditional couplings to connect pipes. The structure is simpler and easy to process and manufacture. However, since there is no coupling, the hydraulic elevator cannot clamp the shoulderless pipe. Therefore, the lifting nipples are buckled with one end of the shoulderless pipe to meet the needs of on-site operations. The conversion joint is used for conversion connections between pipes of different sizes, and it also needs to be buckled with the end of the pipe.
[0003] At present, traditional pipe fixture screwing tools are mainly pliers-shaped metal tools. Since large clamping force and torque need to be applied to the pipe fixture during the screwing and unscrewing processes, the contact between traditional tools and the metal surface of the pipe fixture causes great damage to the pipe fixture.
[0004] Therefore, there is an urgent need for a driving roller and an execution assembly for a pipe tooling that can reduce damage to the pipe tooling. 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 driving roller and an execution assembly for a pipe tooling, which solves the technical problem of the prior art causing great damage to the pipe tooling.
[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 driving roller for a pipe tooling, comprising a main shaft, a plurality of non-metallic rings and a plurality of metal rings; the plurality of non-metallic rings and the plurality of metal rings are sleeved on the main shaft, and the plurality of non-metallic rings and the plurality of metal rings are staggered and distributed one by one along the extension direction of the main shaft to form a roller body; the diameter of the non-metallic ring is larger than the diameter of the metal ring; the main shaft can be rotatably mounted on the bracket body of the execution assembly.
[0010] Optionally, the diameter of the non-metallic ring is 5 to 6 mm larger than the diameter of the metal ring.
[0011] Optionally, the thickness of the non-metallic ring is greater than the thickness of the metal ring.
[0012] Optionally, both the non-metallic ring and the metal ring are connected to the main shaft by using rectangular splines.
[0013] Optionally, the driving roller for the pipe fixture further comprises an end retaining ring and a clamping retaining ring; the end retaining ring and the clamping retaining ring are sleeved on the main shaft, the end retaining ring is located at the bottom of the roller body, and the clamping retaining ring is located at the top of the roller body.
[0014] Optionally, a transmission member is further provided at the top of the main shaft; the main shaft can be connected to a power mechanism of the execution assembly through the transmission member to drive the main shaft to rotate.
[0015] Optionally, the non-metallic ring is a polyurethane ring.
[0016] On the other hand, the utility model further provides an execution assembly, comprising the above-mentioned driving roller for pipe tooling and the bracket body, wherein the main shaft is rotatably mounted on the bracket body.
[0017] (III) Beneficial effects
[0018] The beneficial effects of the utility model are:
[0019] The utility model provides a driving roller for pipe fixtures, in which a non-metallic ring is supported by a metal ring to form a roller body, and the non-metallic part of the roller body abuts against the pipe fixture to make and break the buckle. Under the same clamping force, the non-metallic part of the roller body can significantly reduce the damage to the pipe fixture, and the friction coefficient is larger, which can provide a larger rotational torque. The diameter of the non-metallic ring is designed to be larger than the diameter of the metal ring to reserve the wear amount and ensure that the non-metallic ring is always in contact with the pipe fixture. The roller body structure in the form of multi-ring assembly is convenient for maintenance and replacement, and the metal ring can provide effective support for the non-metallic ring, improve the force stability of the non-metallic ring, and reduce the force deformation of the non-metallic ring. Compared with the prior art, the roller body formed by the metal ring supporting the non-metallic ring can reduce the damage to the pipe fixture, and the high friction coefficient and wear resistance of the non-metallic ring can transmit a larger rotational torque to the pipe fixture, and the force stability is higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a driving roller for a pipe tooling in Example 1 of the utility model;
[0021] Figure 2 This is a schematic structural diagram of the non-metallic ring in Example 1 of the utility model.
[0022] [Description of Reference Numerals]
[0023] 1: spindle; 2: non-metallic ring; 3: metal ring; 4: end retaining ring; 5: clamping retaining ring; 6: transmission part. DETAILED DESCRIPTION
[0024] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although 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.
[0025] Embodiment 1:
[0026] like Figure 1 As shown, this embodiment provides a driving roller for pipe tooling, including a main shaft 1, a plurality of non-metallic rings 2 and a plurality of metal rings 3; the plurality of non-metallic rings 2 and the plurality of metal rings 3 are sleeved on the main shaft 1, and the plurality of non-metallic rings 2 and the plurality of metal rings 3 are staggered one by one along the extension direction of the main shaft 1 to form a roller body; the diameter of the non-metallic ring 2 is larger than the diameter of the metal ring 3. In this embodiment, the diameter of the non-metallic ring 2 is 5 to 6 mm larger than the diameter of the metal ring 3. The main shaft 1 can be rotatably mounted on the bracket body of the execution assembly, and a transmission member 6 is also provided at the top of the main shaft 1; the main shaft 1 can be connected to the power mechanism of the execution assembly through the transmission member 6 to drive the main shaft 1 to rotate.
[0027] Specifically, the non-metallic ring 2 is supported by the metal ring 3 to form a roller body, and the non-metallic part of the roller body is used to abut against the pipe fixture for buckling and unbuckling. Under the same clamping force, the non-metallic part of the roller body can significantly reduce the damage to the pipe fixture, and the friction coefficient is larger, which can provide a larger rotational torque. The diameter of the non-metallic ring 2 is designed to be larger than the diameter of the metal ring 3 to reserve the wear amount and ensure that the non-metallic ring 2 is always in contact with the pipe fixture. The roller body structure in the form of multi-ring assembly is convenient for maintenance and replacement. The metal ring 3 can provide effective support for the non-metallic ring 2, improve the force stability of the non-metallic ring 2, and reduce the force deformation of the non-metallic ring 2. Compared with the prior art, the metal ring 3 supporting the non-metallic ring 2 to form a roller body can reduce the damage to the pipe fixture, and the high friction coefficient and wear resistance of the non-metallic ring 2 can transmit a larger rotational torque to the pipe fixture, and the force stability is higher.
[0028] Furthermore, if Figure 1 and Figure 2 As shown, the thickness of the non-metallic ring 2 is greater than that of the metal ring 3, which increases the non-metallic part area of the roller body and ensures sufficient contact area with the pipe fixture; both the non-metallic ring 2 and the metal ring 3 are connected to the main shaft 1 using rectangular splines to improve the transmission torque capacity.
[0029] Furthermore, if Figure 1 As shown, the roller body also includes an end retaining ring 4 and a clamping retaining ring 5; the end retaining ring 4 and the clamping retaining ring 5 are sleeved on the main shaft 1, the end retaining ring 4 is located at the bottom of the roller body, and the clamping retaining ring 5 is located at the top of the roller body. The end retaining ring 4 is fixedly installed on the main shaft 1 as the bearing plane of the roller body, and the clamping retaining ring 5 is installed on the main shaft 1 through threads. It cooperates with the end retaining ring 4 to apply a certain pre-tightening force to the roller body, so that the non-metallic ring 2 and the metal ring 3 remain stable.
[0030] Furthermore, in the present embodiment, the non-metallic ring 2 is a polyurethane ring, specifically, polyurethane or 90 polyurethane with added carbon fiber and hard particles, which has a large contact bearing capacity and a high friction coefficient, ensuring the transmission of the rotational torque of the roller body.
[0031] Furthermore, in this embodiment, 90 polyurethane is selected as the material for the non-metallic ring 2 for reliability testing. The main advantages are excellent repeatability and cushioning properties, can be used in any environment except special environments, high hardness and high friction.
[0032] According to the strain energy density function expression of the calculation model:
[0033] W=C 10 (I1-3)+C 01 (I2-3)+1 / D1(J d -1) 2 .
[0034] Among them C 10 , C 01 , D1 is the material constant.
[0035] According to the hardness and Young's modulus formula:
[0036] E0=(15.75+2.15H r ) / (100-H r ).
[0037] E0=6(C 10 +0.25C 01 ).
[0038] Find C 10 =2.787MPa, C 01 =0.697MPa, D1=0.002(MPa) -1 .
[0039] The contact friction coefficient between the non-metallic ring 2, the metal ring 3 and the main shaft 1 is 0.5; the contact friction coefficient between the metal spacer ring and the retaining ring is 0.15; RBE2 rigidity is used between the retaining ring and the shaft.
[0040] Establish a steel pipe with a radius of 104.5mm. The steel pipe contacts the non-metallic ring 2 (polyurethane ring) and establishes a contact friction coefficient of 0.5. Constrain the six degrees of freedom at the bottom assembly of the driving roller. Establish the direction of the coordinate perpendicular to the section of the polyurethane ring as the positive X direction; the direction perpendicular to the axial plane as the positive Z direction. Constrain the 2345 degrees of freedom at the center of the bottom of the steel ring (release the X-direction translation and Z-direction rotation).
[0041] Establish load: Establish loads along the positive X-axis at the center of the steel pipe, which are 1000N, 1500N, 2000N, 2500N, 3000N, 3500N, 4000N, 4500N, and 5000N, as shown in Table 1; that is, simulate the clamping force of the pipe fixture. Establish torque along the Z-axis at the center of the steel pipe, and the torque is 0.3 of each clamping force, that is, simulate the tangential force.
[0042] According to the calculation:
[0043]
[0044] As the clamping force increases, the torque also increases, and the X-direction displacement of the polyurethane ring also increases, and the linear relationship is positively correlated. Under this condition, the clamping force is 5000N, and the X-direction displacement of the polyurethane ring is 1.805mm, which is less than 2.5mm. Under the maximum extrusion condition, the steel pipe does not contact the spacer ring, which meets the design requirements.
[0045] Embodiment 2:
[0046] This embodiment provides an actuator, including the driving roller, bracket body and power mechanism for pipe fixture in Embodiment 1, the main shaft 1 is rotatably mounted on the bracket body, and the power mechanism is connected to the transmission member 6 of the main shaft 1 to drive the main shaft 1 to rotate for buckling and detaching.
Claims
1. A driving roller for a pipe tool, characterized in that: It comprises a main shaft (1), a plurality of non-metallic rings (2) and a plurality of metal rings (3); The plurality of non-metallic rings (2) and the plurality of metal rings (3) are sleeved on the main shaft (1), and the plurality of non-metallic rings (2) and the plurality of metal rings (3) are staggeredly distributed one by one along the extension direction of the main shaft (1) to form a roller body; The diameter of the non-metallic ring (2) is greater than the diameter of the metal ring (3); The main shaft (1) can be rotatably mounted on a bracket body of the execution assembly.
2. The driving roller for pipe tooling according to claim 1, characterized in that: The diameter of the non-metallic ring (2) is 5 to 6 mm larger than the diameter of the metal ring (3).
3. The driving roller for pipe tooling according to claim 1, characterized in that: The thickness of the non-metallic ring (2) is greater than the thickness of the metal ring (3).
4. The driving roller for pipe tooling according to claim 1, characterized in that: The non-metallic ring (2) and the metal ring (3) are both connected to the main shaft (1) by means of rectangular splines.
5. The driving roller for pipe tooling according to claim 1, characterized in that: It also includes an end retaining ring (4) and a clamping retaining ring (5); The end retaining ring (4) and the clamping retaining ring (5) are sleeved on the main shaft (1), the end retaining ring (4) is located at the bottom of the roller body, and the clamping retaining ring (5) is located at the top of the roller body.
6. The driving roller for pipe tooling according to claim 1, characterized in that: A transmission member (6) is also provided on the top of the main shaft (1); The main shaft (1) can be connected to the power mechanism of the execution assembly through the transmission member (6) so as to drive the main shaft (1) to rotate.
7. The driving roller for pipe tooling according to claim 1, characterized in that: The non-metallic ring (2) is a polyurethane ring.
8. An execution assembly, characterized in that: It comprises the driving roller for pipe tooling according to any one of claims 1 to 7 and the bracket body; The main shaft (1) is rotatably mounted on the bracket body.