High-strength fiber belt torque clamp and spinning device

Abstract

The utility model belongs to the technical field of petroleum drilling operation equipment, and particularly relates to a high-strength fiber belt torque clamp and spinning device which comprises a clamp handle, a clamp jaw and a belt, and the belt is composed of an inner macromolecule fiber woven layer and an outer wrapping elastic material layer. The two ends of the belt are provided with a first pin buckle and a second pin buckle respectively, the first pin buckle and the second pin buckle are provided with through holes, and the first pin buckle and the second pin buckle are annularly and detachably connected to the plier pins at the ends of the plier handles in a sleeving mode, and the plier handles extend in the axial direction of the plier pins to form a hinge seat which is hinged to the middle-rear portion of the plier jaw through a first pin shaft. An adjusting part extending outwards is arranged at the position, hinged to the clamp handle, of the clamp jaw, at least two adjusting holes arranged in the length direction of the clamp jaw are formed in the adjusting part, and the second pin buckle is detachably installed in any adjusting hole through a second pin shaft to form a connecting structure with the length of the belt adjustable. The novel belt tongs solve the problem that an existing belt tongs is poor in compatibility with non-standard pipe diameters, and the efficient and safe operation requirements of modern petroleum drilling are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of petroleum drilling operation equipment, and particularly relates to a high-strength fiber belt torque wrench and a screwing device. BACKGROUND

[0002] In oil drilling construction, the threaded assembly and disassembly of the pipe column and tool joint need to rely on a high-torque operating device. At present, metal jaw type torque wrenches are generally used for operation, torque is transmitted through the engagement of rigid jaws and the surface of the pipe column, and the following significant defects exist: first, the risk of pipe column damage is high: when the metal jaws are in contact with the pipe column at a local point, stress concentration easily leads to surface indentation, scratches or even deformation of the pipe body, especially for the damage of anticorrosive coating or precision machining pipe; second, adaptability is limited: single-specification jaws are only suitable for specific pipe diameters, and frequent replacement of accessories is required to face multi-specification pipe columns, resulting in low operation efficiency; third, the equipment is heavy: the all-metal structure leads to excessive weight of the device, making it difficult to operate on offshore platforms and narrow well sites, and safety hazards are prominent; fourth, environmental sensitivity: metal parts are easily corroded in the high-salt fog environment of the sea, and the maintenance cost is relatively high.

[0003] There are many studies on the problems of metal jaw type torque wrenches in the prior art, such as patent application CN206352491U - a SCT type belt wrench, which realizes flexible clamping by wrapping the pipe column with a belt, although it solves some problems existing in the current metal jaw type torque wrench, but the existing belt wrench needs a multi-stage hinged mechanism, the assembly is relatively complex, it is difficult to quickly adjust on site, the torque transmission efficiency is low, and the phenomenon of layered fracture easily occurs due to long-term high-load working conditions, it is also difficult to achieve stepless adaptation, the compatibility for non-standard pipe diameters is weak, and it is difficult to meet the efficient and safe operation requirements of modern oil drilling. Therefore, a new technical scheme is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a high-strength fiber belt torque wrench and a screwing device to solve the problems of complex assembly, low torque transmission efficiency, and the phenomenon of layered fracture easily occurring due to long-term high-load working conditions, which is also difficult to achieve stepless adaptation, the compatibility for non-standard pipe diameters is weak, and it is difficult to meet the efficient and safe operation requirements of modern oil drilling, etc.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength fiber belt torque pliers, comprising a plier handle, jaws, and a belt. The belt is composed of an inner polymer fiber braided layer and an outer elastic material layer. The two ends of the belt are respectively provided with annular first and second pins with through holes. The first pin is detachably sleeved on a plier pin at the end of the plier handle. The end of the plier handle with the plier pin extends axially along the plier pin to form a hinge seat. The hinge seat is hinged to the middle and rear part of the jaws via a first pin. The jaws have an outwardly extending adjustment portion at the hinge point with the plier handle, and the adjustment portion has at least two adjustment holes arranged along the length direction of the jaws. The second pin is detachably installed in any of the adjustment holes via a second pin to form a connection structure with adjustable belt length.

[0006] Furthermore, the polymer fiber braided layer is made of aromatic polyamide fibers interwoven together, and the elastic material layer is a rubber or polyurethane composite material with a Shore hardness of 80-95A.

[0007] Furthermore, the belt is arranged in an arc shape between the pliers handle and the jaws via a first buckle and a second buckle; the front part of the jaws is provided with a V-shaped clamping part, and at least one pair of teeth plates are symmetrically arranged on the inner side of the V-shaped clamping part; the surface of the teeth plate is provided with anti-slip teeth, and the distance between adjacent anti-slip teeth is 2-5mm; the teeth plate is tightly clamped to the inner side of the arc-shaped belt with a tube or sleeve through the anti-slip teeth.

[0008] Furthermore, a lifting rod is vertically fixed to the upper part of the clamp handle near the clamp pin end, and the end of the lifting rod is provided with several lifting rings; a circular traction buckle is horizontally fixed to the end of the clamp handle away from the clamp pin.

[0009] In addition to the above technical solutions, there is also a buckling device with a high-strength fiber belt torque clamp.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1.The utility model discloses a composite structure of inner layer high polymer fiber braided layer and outer elastic material layer, which significantly improves the strength and flexibility of the belt, reduces the risk of delamination and fracture, and has excellent wear resistance, so that it can maintain stable performance in long-term high-load oil drilling operations, effectively improves the efficiency of torque transmission, reduces equipment failure and maintenance costs caused by belt wear, and compared with the current metal jaw type torque wrench, effectively avoids the stress concentration problem caused by the local point contact between the rigid jaw and the surface of the pipe column, so that the belt can better fit the surface of the pipe column when contacting the pipe, increase the contact area, effectively protect the anticorrosion coating and precision machining surface of the pipe, greatly reduce the risk of pipe scrap caused by equipment operation, and improve the service life and safety of the pipe;On this basis, through the detachable connection structure of the first pin buckle and the second pin buckle, the replacement and maintenance of the belt are more convenient and fast, the equipment maintenance time is greatly shortened, the operation efficiency is improved, the jaw is hinged to the handle through the hinge seat structure, the jaw can rotate flexibly relative to the handle, the operator can adjust the position and angle of the pipe, realize more accurate clamping and torque transmission, and also ensure the stability of the jaw when clamping the pipe, reduce the clamping looseness caused by vibration and impact, on this basis, the adjusting part with a plurality of adjusting holes is extended outward at the hinge between the jaw and the handle, which not only provides space for the length adjustment of the belt and realizes stepless adjustment of the length of the belt, so that the torque wrench can adapt to different specifications of the pipe, solve the problem that the existing single-specification jaw type torque wrench is only suitable for a specific pipe diameter and the compatibility of the existing belt wrench for non-standard pipe diameter is weak, effectively enhance the structural strength of the jaw, reduce the deformation and damage risk of the jaw, improve the reliability and safety of the whole torque wrench, and meet the modern oil drilling efficient and safe operation requirements.

[0012] 2.The utility model discloses a high strength, high modulus, high temperature resistance and other characteristics of aromatic polyamide fiber, so that the belt can withstand a large torque without breaking, and also has good toughness, can adapt to complex working environment, prolong the service life of the belt, on this basis, through the rubber or polyurethane composite material with a shore hardness of 80-95A, the belt has a certain elasticity, can provide appropriate buffer during clamping, reduce the damage to the clamped object, and can also ensure sufficient supporting force to ensure the stability of clamping and improve the comprehensive performance of the belt.

[0013] 3. The utility model discloses a first pin buckle and second pin buckle are surrounded the belt of the arc structure between the handle and the jaw, make the belt better adhere to the shape of the pipe column or casing, increase the contact area with the clamped object, improve the adaptability of clamping, on this basis, make the belt can be guided by the V-shaped clamping portion more evenly to the pipe column or casing and exert the clamping force, thereby make the clamping force more concentrated and stable, reduce the sliding or shaking in the clamping process, improve the reliability and stability of clamping, at least a pair of toothed plates with anti -skid tooth on the surface is arranged on the inner side of the V-shaped clamping portion symmetrically, and the spacing between the adjacent anti -skid tooth is 2-5mm, greatly increase the friction between the belt and the pipe column or casing, make the belt more firmly hold the clamped object;

[0014] 4. The utility model discloses a lifting rod and lifting ring are equipped on the upper handle, and the lifting and carrying of equipment are convenient, and the end portion of handle is equipped with the circular ring traction buckle away from the tongs pin, can be used for connecting with other equipment or traction device, further expands the use function of equipment, satisfies the demand of different operation scene. DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of high strength fiber belt torque tongs of the utility model;

[0016] Figure 2 It is the structure schematic diagram of high strength fiber belt torque tongs of the utility model in the unlocking (loosen the pipe column or casing) state;

[0017] Figure 3 It is the structure schematic diagram of high strength fiber belt torque tongs of the utility model in the locking (tighten the pipe column or casing) state;

[0018] Figure 4 It is the structure schematic diagram of the jaw in Figure 2 Or Figure 3 ;

[0019] Figure 5 It is the structure schematic diagram of the handle in Figure 2 Or Figure 3 ;

[0020] Figure 6 It is the front and side structure schematic diagram of the belt of the utility model;

[0021] Figure 7 It is the enlarged structure schematic diagram of A area in Figure 6 ;

[0022] Figure 8 It is the local enlarged structure schematic diagram of high molecular fiber braided layer of the utility model.

[0023] Wherein: 1, the handle of the clamp; 101, the clamp pin; 2, the jaw of the clamp; 201, the adjusting part; 2011, the adjusting hole; 202, the V-shaped clamping part; 2021, the tooth plate; 2022, the anti-skid tooth; 3, the belt; 301, the high molecular fiber woven layer; 302, the elastic material layer; 303, the first pin buckle; 304, the second pin buckle; 4, the hinged seat; 5, the first pin shaft; 6, the second pin shaft; 7, the pipe; 8, the hoisting rod; 801, the lifting ring; 9, the circular ring traction buckle. DETAILED DESCRIPTION

[0024] The following examples are used to further illustrate the content of the present application and do not limit the application of the present application. Example 1:

[0025] Please refer to Figures 1-8 The present application provides a high-strength fiber belt torque wrench, comprising a handle of the clamp 1, a jaw of the clamp 2 and a belt 3, the belt 3 is composed of a high molecular fiber woven layer 301 with aromatic polyamide fiber interlaced woven in the inner layer and an elastic material layer 302 made of rubber or polyurethane composite material with a Shore hardness of 80-95A in the outer covering, both ends of the belt 3 are respectively provided with a ring-shaped first pin buckle 303 and a second pin buckle 304 with a through hole and form a circular arc structure between the handle of the clamp 1 and the jaw of the clamp 2 through the first pin buckle 303 and the second pin buckle 304, wherein the first pin buckle 303 is detachably sleeved on the clamp pin 101 at the end of the handle of the clamp 1, the end of the handle of the clamp 1 provided with the clamp pin 101 extends along the axial direction of the clamp pin 101 to form a hinged seat 4, the hinged seat 4 is hinged with the middle and rear part of the jaw of the clamp 2 through the first pin shaft 5, the jaw of the clamp 2 is provided with an outwardly extending adjusting part 201 at the hinged part with the handle of the clamp 1 and at least two adjusting holes 2011 are arranged on the adjusting part 201 along the length direction of the jaw of the clamp 2, the second pin buckle 304 is detachably installed in any adjusting hole 2011 to form a connecting structure with adjustable length of the belt 3 through the second pin shaft 6;

[0026] The front part of the jaw of the clamp 2 is provided with a V-shaped clamping part 202 matched with the belt 3, at least one pair of tooth plates 2021 for clamping the pipe 7 are symmetrically arranged on the inner side of the V-shaped clamping part 202, and the surface of the tooth plate 2021 is provided with anti-skid teeth 2022 for anti-skid, the spacing between adjacent anti-skid teeth 2022 is 2-5mm, and the tooth plate 2021 is tightly clamped with the pipe column or the sleeve (i.e. the pipe 7) through the anti-skid teeth 2022 and the inner side of the belt 3 with the circular arc structure;

[0027] The upper part of the handle of the clamp 1 is vertically fixed with a hoisting rod 8 near the end side of the clamp pin 101, and the end of the hoisting rod 8 is provided with a plurality of lifting rings 801 for facilitating the lifting and carrying of the equipment; the end of the handle of the clamp 1 away from the clamp pin 101 is horizontally fixed with a circular ring traction buckle 9 for connecting with other equipment or traction device.

[0028] The working principle and use process of the embodiment are as follows: Figures 1-8 As shown in the figure, after the high-strength fiber belt torque wrench is assembled, the operator installs the high-strength fiber belt torque wrench on the spinning buckle device (the functions and structures of the spinning buckle device and other conventional devices are well known in the art, and the connection setting is also well known, so no further description is given here, and the spinning buckle device is not shown in the figure), and cooperates with the spinning buckle device to complete the make-up and break-out operation of the pipe tool 7. The purpose is to enable the belt torque wrench to maintain stable performance in long-term high-load oil drilling operations, improve the efficiency of torque transmission, reduce equipment failures and maintenance costs caused by belt wear, solve the stress concentration problem caused by the local point contact between the rigid jaw and the surface of the pipe string, and also solve the problem that the existing single-specification jaw type torque wrench is only suitable for a specific pipe diameter and the existing belt wrench has poor compatibility with non-standard pipe diameters, thereby meeting the efficient and safe operation requirements of modern oil drilling.

[0029] When the spinning buckle device needs to perform the make-up and break-out operation on the pipe tool 7, the operator first determines the lifting direction of the lifting rod 8 according to the operation requirements, then places the pipe tool 7 into the jaw 2 to the V-shaped clamping portion 202, and then connects the first pin buckle 303 at one end of the belt 3 to the jaw handle 1 through the jaw pin 101. Then, according to the size and diameter of the pipe tool 7, the second pin buckle 304 at the other end of the belt 3 is connected to the appropriate adjustment hole 2011 in the adjusting portion 201 of the jaw 2 through the second pin shaft 6. At this time, the inner side of the belt 3 cannot be completely attached to the pipe wall of the pipe tool 7 (as shown in Figure 2 ), and then the circular ring traction buckle is used to rotate the jaw handle 1 to the rear side of the jaw 2. At this time, the belt 3 will be tightened under the rotating tension of the jaw handle 1, until the pipe wall of the pipe tool 7 is tightly attached to the inner side of the belt 3 (as shown in Figure 3 ), at which time the belt 3 will be supported and clamped to the pipe tool 7 by the toothed plate 2021 provided with the anti-skid teeth 2022, and finally the spinning buckle device is used to perform the make-up and break-out operation on the pipe tool 7.

[0030] When the make-up and break-out operation of the pipe tool 7 is completed, the operator rotates the jaw handle 1 to the front side of the jaw 2 by using the circular ring traction buckle. At this time, the belt 3 will be loosened under the rotating action of the jaw handle 1, until the pipe wall of the pipe tool 7 is separated from the inner side of the belt 3 (as shown in Figure 2 ), at which time the belt 3 will loosen the pipe tool 7, and then the first pin buckle 303 and the second pin buckle 304 are detached through the jaw pin 101 and the second pin shaft 6 respectively, that is, the belt 3 is detached from the jaw handle 1 and the jaw 2, in preparation for the next make-up and break-out operation of the pipe tool 7. Embodiment 2:

[0031] Please refer to Figures 1-8As another object of the utility model, a kind of screwing device is provided, and the screwing device is equipped with the above high-strength fiber belt torque wrench, therefore, screwing device can obtain any beneficial effect that the above described high-strength fiber belt torque wrench has, which will not be described here.

Claims

1. A high-strength fiber belt torque clamp, comprising a handle, jaws, and a belt, characterized in that, The belt is composed of an inner polymer fiber braided layer and an outer elastic material layer. The two ends of the belt are respectively provided with annular first buckle and second buckle with through holes. The first buckle is detachably sleeved on the clamp pin at the end of the clamp handle. The end of the clamp handle with the clamp pin extends along the clamp pin axially to form a hinge seat. The hinge seat is hinged to the middle and rear part of the jaws through a first pin. The jaws are provided with an outwardly extending adjustment part at the hinge point with the clamp handle, and the adjustment part has at least two adjustment holes arranged along the length direction of the jaws. The second buckle is detachably installed in any of the adjustment holes through a second pin to form a connection structure with adjustable belt length.

2. The high-strength fiber belt torque clamp according to claim 1, characterized in that, The polymer fiber woven layer is made of aromatic polyamide fibers interwoven together.

3. A high-strength fiber belt torque clamp according to claim 2, characterized in that, The elastic material layer is a rubber or polyurethane composite material with a Shore hardness of 80-95A.

4. A high-strength fiber belt torque clamp according to claim 1, characterized in that, The belt is formed into an arc shape between the pliers handle and jaws by a first buckle and a second buckle.

5. A high-strength fiber belt torque clamp according to claim 4, characterized in that, The front part of the jaw is provided with a V-shaped clamping part, and at least one pair of tooth plates are symmetrically arranged on the inner side of the V-shaped clamping part.

6. A high-strength fiber belt torque clamp according to claim 5, characterized in that, The toothed plate has anti-slip teeth on its surface, and the distance between adjacent anti-slip teeth is 2 to 5 mm.

7. A high-strength fiber belt torque clamp according to claim 6, characterized in that, The toothed plate tightly grips the pipe column or sleeve by engaging with the inner side of the arc-shaped belt through anti-slip teeth.

8. A high-strength fiber belt torque clamp according to claim 1, characterized in that, A lifting rod is vertically fixed to the upper part of the clamp handle near the clamp pin end, and the end of the lifting rod is provided with several lifting rings.

9. A high-strength fiber belt torque clamp according to claim 8, characterized in that, A circular traction buckle is horizontally fixed at the end of the pliers handle away from the pliers pin.

10. A screw fastening device, characterized in that, Including a high-strength fiber belt torque clamp as described in any one of claims 1-9.

Images