Martin decker tension calibration device

Abstract

The utility model discloses a Martin decker tension calibration device which comprises a main body frame, a tension device and a tension measurement device, the main body frame comprises a first vertical plate and a second vertical plate, and the first vertical plate and the second vertical plate are connected through a supporting rod; the first vertical plate is connected with a tension measuring device, the second vertical plate is connected with a tensioning device, the tensioning device is connected with a first clamping device, and the tension measuring device is connected with a second clamping device; during use, the first vertical plate and the second vertical plate are located on the two sides of the Martin decker. According to the utility model, the frame structure is clamped by adopting the vertical plates and the supporting rods, so that the whole Martin decker tension system can be directly and conveniently clamped in the frame on a test well car without dismounting the Martin decker, calibration is implemented, field operation is facilitated, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tension detection technical field, concretely is a martin daidai tension calibration device. BACKGROUND

[0002] In the well logging, testing operation process of oil, gas, water well, the change of well logging cable or logging wireline running speed and tension is measured through the martin daidai on winch, and the running condition of logging instrument and well logging cable or logging wireline in the well is judged, therefore, the accuracy of real-time tension value in well logging cable or logging wireline running directly influences the construction safety of logging instrument in the well. At present, the tension measurement method used by martin daidai on winch is three roller method (three point bending method). Well logging cable or logging wireline generates an upward component force F' (see Figure 1 ) on the measuring wheel through the front guide wheel, measuring wheel and rear guide wheel, and the tension F of well logging cable or logging wireline can be indirectly obtained by measuring the component force F', that is, F=F' / (2cos(θ / 2). With the continuous use of well logging cable or logging wireline, well logging cable or logging wireline and guide wheel and measuring wheel are in a continuous wear process, and the outer diameter of front and rear guide wheels, measuring wheel and well logging cable or logging wireline will change to different degrees, and cable angle θ will also change accordingly, therefore, the tension system (pressure sensor, guide wheel, measuring wheel and well logging cable or logging wireline combined system) of entire martin daidai needs to be detected and calibrated at irregular intervals according to the frequency of use of well logging cable or logging wireline.

[0003] At present, the calibration of martin daidai tension system is carried out in two steps in oil field, the first step is to disassemble the pressure sensor on martin daidai and calibrate it on the standard calibration table, and the second step is to assemble the calibrated pressure sensor back to martin daidai, well logging cable or logging wireline is hung with standard weight through pulley, and the tension measurement value displayed by martin daidai tension measurement system is compared with the standard weight value, and the tension scale coefficient is obtained by calculation, after the scale coefficient is input in the running parameter setting interface of winch panel, the tension value displayed by winch panel is consistent with the standard weight value, and the calibration of tension system is completed. This method is relatively cumbersome, time-consuming and laborious, and the calibration time is relatively long, which influences well logging and testing production and cannot meet the calibration demand of martin daidai of professional well logging and testing unit.

[0004] The utility model discloses a steel wire tension meter precision detection device discloses a bottom plate, linear mechanism, steel wire fixed establishment, copper head fixed establishment, force mechanism and force value sensor, linear mechanism and steel wire fixed establishment are fixed on the bottom plate, copper head fixed establishment can slideablely install on linear mechanism, force mechanism includes fixed block, screw rod and handle, fixed block fixed mounting is on bottom plate, screw rod is worn in fixed block, and one end fixed connection handle of this screw rod, the other end fixed connection is in one end of force value sensor, the other end fixed connection copper head fixed establishment of force value sensor.

[0005] The prior art cannot be used for martin daidai's calibration.

[0006] The utility model discloses a kind of multifunctional verification load platform, including a workbench, the workbench is equipped with two ends closed working chamber, hydraulic cylinder is equipped in the working chamber inside near one end, standard tension sensor, mechanical load table, front end connecting mechanism and rear end locking mechanism are sequentially connected in hydraulic cylinder telescopic end, the mechanical load table bottom is equipped with table base, the table base is supported by table frame slide way being equipped in mechanical load table both sides, the both ends of table frame slide way are respectively equipped with positioning column, the distance between two end positioning columns is same with the stroke of hydraulic cylinder, tension depth sensor is also respectively equipped outside table frame slide way.

[0007] The utility model discloses a kind of online tension sensor's calibration equipment, including case, the front of the case is provided with driving wheel and driven wheel, driving wheel and driven wheel are wound with silk thread, silk thread is paid out by driven wheel, first passes through the wire guide under driven wheel, passes over fixed wire guide wheel, again, it is passed over a wire guide wheel suspendedly arranged below, it is sent to driving wheel after being passed over a rocker arm wire guide wheel from wire guide wheel, the bottom of wire guide wheel is equipped with lifting lug, a weight is hung below lifting lug, a sensor base is fixed between wire guide wheel and rocker arm wire guide wheel, tension sensor is provided on the sensor base.

[0008] The above two prior arts can only calibrate pressure sensor, then use standard weight to pull tight logging cable or logging steel wire through martin daidai tension measurement system, compare the tension measurement value displayed on winch panel with standard weight value to calibrate, this mode can only complete calibration of martin daidai tension system twice, cannot complete calibration work once conveniently, there is the problem of complicated operation, long calibration time, great labor intensity, cannot satisfy the demand of professional well logging unit to calibrate martin daidai conveniently.

[0009] In summary, the technical solutions of the above disclosed technologies, the technical problems to be solved and the beneficial effects generated are all different from the utility model, and the above disclosed technical documents do not have technical inspiration for more technical features and the technical problems to be solved and the beneficial effects of the utility model. Utility model content

[0010] In view of the above defects existing in the prior art, the utility model aims at providing a Martin tension calibration device.

[0011] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0012] A Martin tension calibration device, comprising a main frame, a tensioning device and a tension measuring device, the main frame comprises a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are connected through a support rod, the first vertical plate is connected with the tension measuring device, the second vertical plate is connected with the tensioning device, the tensioning device is connected with a first clamping device, and the tension measuring device is connected with a second clamping device, and the first vertical plate and the second vertical plate are located on both sides of the Martin during use.

[0013] Further, the first vertical plate and the second vertical plate are both rectangular bodies, and four symmetrical notches are arranged at the four corners of the first vertical plate or the second vertical plate.

[0014] Specifically, variable-diameter steps matched with the notches are arranged at both ends of the support rod, and both ends of the support rod are clamped with the corresponding notches on the first vertical plate and the second vertical plate.

[0015] Further, the first vertical plate is provided with a first through hole for passing through the first clamping device.

[0016] Specifically, the second vertical plate is provided with a second through hole for passing through the second clamping device.

[0017] Further, the tensioning device comprises a housing, a self-locking force amplification transmission mechanism and a rotary-linear conversion mechanism.

[0018] Specifically, the input shaft of the self-locking force amplification transmission mechanism is provided with a connecting part, and the connecting part penetrates out of the housing to connect with a rotating tool.

[0019] Specifically, the output shaft of the self-locking force amplification transmission mechanism is connected with the second clamping device through the rotary-linear conversion mechanism.

[0020] Further, the self-locking force amplification transmission mechanism comprises a worm and a turbine.

[0021] Specifically, the worm is rotationally connected with the housing through a type bearing, the turbine is rotationally connected with the housing through a type bearing, and the worm is engaged with the turbine.

[0022] Specifically, the shell is fixed with a type one bearing through a bearing cover, and is fixed with a type two bearing through an end cover.

[0023] Further, the rotating and linear converting mechanism comprises a screw rod, a threaded through hole is arranged in the center of the turbine, and the screw rod is connected with the threaded through hole.

[0024] Specifically, an axial rectangular notch is arranged on the outer threaded surface of the screw rod, an end face of one end cover is provided with a clamping block, the clamping block is matched with the rectangular notch, the clamping block makes the screw rod unable to rotate, and the screw rod can move forward and backward along the clamping block.

[0025] Specifically, the screw rod is connected with a second clamping device.

[0026] Specifically, an end face of the shell, which is away from the clamping block, is connected with a second vertical plate.

[0027] Further, the tension measuring device comprises a pressure sensor and a portable tension display instrument.

[0028] Specifically, the pressure sensor is a spoke type annular hollow pressure sensor, a pressure measuring through hole is arranged in the center of the pressure sensor, an annular boss is arranged in the pressure measuring through hole as a load loading area, and the annular boss is connected with a first clamping device.

[0029] Specifically, the pressure sensor is connected with the first vertical plate.

[0030] Specifically, the portable tension display instrument is electrically connected with the pressure sensor.

[0031] Further, the first clamping device comprises a first screw rod clamping sleeve and a first clamping head.

[0032] Specifically, one end of the first screw rod clamping sleeve is an outer threaded rod structure, the other end is a cylindrical hollow clamping groove structure, the outer threaded rod of the first screw rod clamping sleeve passes through the pressure measuring through hole of the pressure sensor, and is connected with the annular boss through a nut.

[0033] Specifically, the first clamping head is used for connecting a cable or a wireline end head, and is placed in the hollow clamping groove of the first screw rod clamping sleeve to transmit an axial load.

[0034] Specifically, the second clamping device comprises a second screw rod clamping sleeve and a second clamping head.

[0035] Specifically, one end of the second screw rod clamping sleeve is an outer threaded rod structure, the other end is a cylindrical hollow clamping groove structure, the screw rod is a hollow rod, and the outer threaded rod of the second screw rod clamping sleeve passes through the screw rod and is connected with the screw rod through a nut.

[0036] Specifically, the second head is used for connecting a cable or a wireline head, and the second head is placed in the hollow clamping groove of the second screw sleeve to transmit axial load.

[0037] Further, the first head or the second head comprises an inner taper sleeve, a middle taper sleeve and an outer taper sleeve.

[0038] Specifically, the outer wall of the inner taper sleeve is provided with a first taper surface, the inner wall of the inner taper sleeve is a straight hole, the outer wall of the middle taper sleeve is provided with a second taper surface, the inner wall of the middle taper sleeve is provided with a third taper surface, and the inner wall of the outer taper sleeve is provided with a fourth taper surface.

[0039] Specifically, the first taper surface, the second taper surface, the third taper surface and the fourth taper surface are the same in direction.

[0040] Specifically, the taper angle of the first taper surface is greater than that of the second taper surface, and the taper angle of the third taper surface is greater than that of the fourth taper surface.

[0041] Specifically, the outer wall of the inner taper sleeve is a variable-diameter cylindrical structure.

[0042] Further, the first head or the second head comprises a pressing cap, an inner clamping platform and an outer clamping sleeve.

[0043] Specifically, the pressing cap is a cylindrical structure, one end of the pressing cap is provided with an inner threaded hole, the bottom of the inner threaded hole is a pressing platform, the outer wall of the inner clamping platform is provided with a fifth taper surface, the fifth taper surface is provided with a semicircular groove, and the outer wall of the outer clamping sleeve is provided with an outer thread at one end, and the inner wall of the outer clamping sleeve is provided with a sixth taper surface at one end close to the outer thread.

[0044] Specifically, the pressing cap can be threadedly connected with the outer clamping sleeve, and the pressing platform makes the fifth taper surface and the sixth taper surface meet.

[0045] Specifically, the outer wall of the outer clamping sleeve is provided with a variable-diameter cylindrical structure at one end away from the outer thread.

[0046] Compared with the prior art, the utility model has the following beneficial effects:

[0047] 1. The utility model adopts a vertical plate and a supporting rod clamping frame structure, does not need to disassemble the Martin deck, and can directly clamp the entire Martin deck tension system in the frame inside on the test well truck, implement calibration, is convenient for on-site operation, saves time and effort.

[0048] 2, The utility model discloses a worm and gear stretching device, and the worm engaging tooth surface is linear contact, and the bearing capacity is big, can provide larger load for the calibration device, satisfies the calibration of various well testing Martin Dalek, worm and gear transmission is spiral transmission, and the transmission is stable, can provide sustained stable load for the calibration device, worm and gear transmission has self -locking, can realize the direction self -locking, therefore, the worm drives the turbine to rotate to any position and can stop and lock and not rotate reversely, can stop the load loading of Martin Dalek tension system at any time and keeps the load constant.

[0049] 3, The utility model discloses a cable is clamped to the chuck, and in the process of calibrating the load of the calibration Martin Dalek, effectively prevent the tension of gradually tightening cable from reaching a certain degree and appearing the phenomenon of slipping.

[0050] 4, The utility model discloses a hand -held portable display is convenient for operation and viewing when calibrating the Martin Dalek on the spot.

[0051] 5, The utility model discloses an integrated frame type calibration device can complete the calibration of the whole Martin Dalek tension system once, and the calibration value is more accurate.

[0052] 6, The utility model discloses a ratchet wrench can rotate the worm and load the cable or logging steel wire of clamped well logging to save time and effort.

[0053] 7, The utility model discloses a Martin Dalek tension system can be calibrated quickly, and the calibration time is reduced from 3h to 20 minutes, improves the calibration efficiency and calibration accuracy, and the on -the -spot operation is convenient, reduces the labor intensity of staff, makes the tension of the cable or logging steel wire of well logging or logging more accurate when the Martin Dalek tension system displays well logging, and the construction personnel can better judge the running state of the instrument and the cable or logging steel wire in the well according to the tension value and speed value of the Martin Dalek, guarantees the safety of well logging construction. BRIEF DESCRIPTION OF DRAWINGS

[0054] Figure 1 It is the principle diagram of the Martin Dalek tension measurement of petroleum well logging winch;

[0055] Figure 2 It is a Martin Dalek tension calibration device front view of the utility model;

[0056] Figure 3 It is a Martin Dalek tension calibration device perspective view of the utility model;

[0057] Figure 4 It is the three -dimensional schematic view of the worm and gear tensioning device of the utility model;

[0058] Figure 5 It is the three -dimensional schematic view of the screw rod sleeve of the utility model;

[0059] Figure 6 is the card head solid decomposition schematic view of the embodiment 1 of the utility model, and

[0060] Figure 7 is the card head solid decomposition schematic view of the embodiment 2 of the utility model.

[0061] In the drawing: 1-pressure sensor, 2-signal transmission line, 3-portable tension display instrument, 4-first vertical plate, 5-first screw sleeve, 6-first clamp head, 61-inner cone sleeve, 62-middle cone sleeve, 63-outer cone sleeve, 7-cable, 8-supporting rod, 9-second clamp head, 91-pressing cap, 92-inner clamping platform, 93-outer clamping sleeve 10-second screw sleeve, 11-second vertical plate, 12-ratchet wrench, 13-tensioning device, 14-screw, 15-clamping block, 16-first end cover, 17-shaft sleeve, 18-first bearing cover, 19-first deep groove ball bearing, 20-worm, 21-first thrust bearing, 22-second deep groove ball bearing, 23-second bearing cover, 24-turbine, 25-second thrust bearing, 26-housing. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0063] Embodiment 1:

[0064] Please refer to Figures 2 to 6 The Martin Daikai tension calibration device provided in the embodiment comprises a main body frame, a tensioning device 13 and a tension measuring device, the tensioning device 13 and the tension measuring device are arranged at two ends of the main body frame, the tensioning device 13 is connected with a first clamping device, the tension measuring device is connected with a second clamping device, and the first clamping device and the second clamping device are used for fixing and connecting the cable 7 or the logging steel wire in the main body frame.

[0065] Further, the main body frame comprises a first vertical plate 4 and a second vertical plate 11, the first vertical plate 4 and the second vertical plate 11 are connected through a supporting rod 8, and the first vertical plate 4 and the second vertical plate 11 are located on the two sides of the Martin Daikai during use.

[0066] Specifically, the first vertical plate 4 and the second vertical plate 11 are rectangular bodies, and symmetrically four notches are arranged at the four corners of the first vertical plate 4 or the second vertical plate 11. The two ends of the support rod 8 are provided with variable-diameter steps matched with the notches. The two ends of the support rod 8 are clamped with the corresponding notches of the first vertical plate 4 and the second vertical plate 11. Four support rods 8 are clamped with the first vertical plate 4 and the second vertical plate 11 to form a rectangular frame for fixing each part and bearing the load generated in the tension calibration process.

[0067] Specifically, the first vertical plate 4 is provided with a first through hole below the horizontal center line for passing through the first clamping device, and the second vertical plate 11 is provided with a second through hole below the horizontal center line for passing through the second clamping device.

[0068] Further, the tensioning device 13 comprises a housing 26, a self-locking force amplification transmission mechanism, and a rotary-linear conversion mechanism. The input shaft of the self-locking force amplification transmission mechanism is provided with a connecting portion which penetrates out of the housing 26 to connect with a rotating tool. The output shaft of the self-locking force amplification transmission mechanism is connected with the second clamping device through the rotary-linear conversion mechanism.

[0069] Specifically, the housing 26 is a rectangular body with an internal hollow.

[0070] Specifically, the self-locking force amplification transmission mechanism comprises a worm 20 and a turbine 24. The worm 20 is rotationally connected with the housing 26 through a first deep groove ball bearing 19 and a second deep groove ball bearing 22. The turbine 24 is rotationally connected with the housing 26 through a first thrust bearing 21 and a second thrust bearing 25. The worm 20 is engaged with the turbine 24, and the rotation of the worm 20 drives the rotation of the turbine 24. The worm and gear transmission has three advantages: first, the meshing tooth surface of the turbine and worm is linear contact, and the bearing capacity is large; second, the turbine and worm transmission is spiral transmission, and the transmission is stable, and the loading load is stable; third, it has self-locking function, and can realize direction self-locking. Therefore, the worm can stop and self-lock at any position without reverse rotation, so that the load of the Martin Dieck tension system can be kept constant at any time during calibration.

[0071] Specifically, the housing 26 is connected with a first bearing cover 18 through bolts, and the first bearing cover 18 fixes the first deep groove ball bearing 19. The housing 26 is connected with a second bearing cover 23 through bolts, and the second bearing cover 23 fixes the second deep groove ball bearing 22. The housing 26 is connected with a first end cover 16 through bolts or threads, and the first end cover 16 fixes the first thrust bearing 21. The housing 26 is connected with a second end cover through bolts or threads, and the second end cover fixes the second thrust bearing 25.

[0072] Specifically, the rotating straight line commutating mechanism comprises a screw rod 14, the worm wheel 24 is provided with a threaded through hole, the screw rod 14 is connected with the threaded through hole, the outer threaded surface of the screw rod 14 is provided with an axial rectangular notch, the first end cover 16 is provided with a clamping block 15 on the end face through a bolt, the clamping block 15 is matched with the rectangular notch, the screw rod 14 is connected with a second clamping device, the clamping block 15 makes the screw rod 14 unable to rotate, when the worm wheel 24 rotates, the screw rod 14 converts the rotary motion into linear motion, and the well logging cable or the logging steel wire is tensioned.

[0073] Preferably, the outer thread of the screw rod 14 and the inner thread of the threaded through hole are rectangular threads.

[0074] Specifically, the shell 26 is fixedly connected with the end face of the second end cover and the outer end face of the second vertical plate 11 through a hexagonal socket head cap screw.

[0075] Specifically, the connecting part of the worm 20 is a key groove, the rotating tool is a ratchet wrench 12, the ratchet wrench 12 is connected with the key groove of the worm 20 through a shaft sleeve 17 and a key, the ratchet wrench 12 rotates the worm 20, thereby driving the worm wheel 24 to rotate and tensioning the clamped cable 7.

[0076] Further, the tension measuring device comprises a pressure sensor 1, the pressure sensor 1 is a spoke type annular hollow pressure sensor, is in the shape of a whole as a cylinder, has a circumferentially symmetric through hole around, the circumferential through hole of the pressure sensor 1 is fixed on the outer side of the first vertical plate 4 through a bolt; the center of the pressure sensor 1 is a pressure measuring through hole, the pressure measuring through hole is provided with an annular boss as a load loading area, for measuring the tension value of the clamped cable, the annular boss is connected with the first clamping device.

[0077] Specifically, the tension measuring device further comprises a portable tension display instrument 3, the portable tension display instrument 3 is electrically connected with the pressure sensor 1, the portable tension display instrument 3 is in the shape of a cuboid, has a small volume, is convenient for handheld, and is convenient for on-site operation, the portable tension display instrument 3 is connected with the pressure sensor 1 through a data transmission line, and the load value of the pressure sensor 1 is displayed in real time.

[0078] Further, the first clamping device comprises a first screw rod clamping sleeve 5 and a first clamping head 6, one end of the first screw rod clamping sleeve 5 is in the shape of an external threaded rod, the other end is in the shape of a cylindrical hollow clamping groove structure, the external threaded rod of the first screw rod clamping sleeve 5 passes through the pressure measuring through hole of the pressure sensor 1 and is connected with the annular boss through a nut, the first clamping head 6 is used for connecting the end of the cable 7, and the first clamping head 6 is placed in the hollow clamping groove of the first screw rod clamping sleeve 5 to transmit the axial load.

[0079] Furthermore, the second clamping device includes a second screw sleeve 10 and a second clamping head 9. One end of the second screw sleeve 10 is an externally threaded rod-shaped structure, and the other end is a cylindrical hollow groove structure. The screw 14 is a hollow rod. The externally threaded rod of the second screw sleeve 10 passes through the screw 14 and is connected to the screw 14 by a nut. The second clamping head 9 is used to connect the end of the cable 7. The second clamping head 9 is placed in the hollow groove of the second screw sleeve 10 to transmit axial load.

[0080] In this embodiment, the first clip 6 or the second clip 9 includes an inner conical sleeve 61, a middle conical sleeve 62, and an outer conical sleeve 63. The outer wall of the inner conical sleeve 61 is provided with a first conical surface, and the inner wall of the inner conical sleeve 61 is a straight hole. The outer wall of the middle conical sleeve 62 is provided with a second conical surface, and the inner wall of the middle conical sleeve 62 is provided with a third conical surface. The inner wall of the outer conical sleeve 63 is provided with a fourth conical surface. The first, second, third, and fourth conical surfaces face the same direction, and the cone angle of the first conical surface is greater than the cone angle of the second conical surface, so that the inner conical sleeve 61... When the middle conical sleeve 62 is inserted, the inner conical sleeve 61 contracts inward. The cone angle of the third conical surface is greater than that of the fourth conical surface, so that when the middle conical sleeve 62 is inserted into the outer conical sleeve 63, the middle conical sleeve 62 contracts inward. The cable 7 end passes through the outer conical sleeve 63, the middle conical sleeve 62, and the inner conical sleeve 61. The first conical surface engages with the second conical surface, the inner conical sleeve 61 squeezes the cable 7 end, the third conical surface engages with the fourth conical surface, the middle conical sleeve 62 squeezes the inner conical sleeve 61, and the inner conical sleeve 61 further squeezes the cable 7 end, achieving a tight connection with the cable 7 end.

[0081] Specifically, the outer wall of the inner conical sleeve 61 is a variable diameter cylindrical structure, which is used to cooperate with the groove of the first screw sleeve 5 or the second screw sleeve 10.

[0082] Example 2:

[0083] Based on Example 1, such as Figure 7 As shown, in this embodiment, the first clamping head 6 or the second clamping head 9 includes a pressure cap 91, an inner clamping platform 92, and an outer clamping sleeve 93. The pressure cap 91 has a cylindrical structure, with an internal threaded hole at one end. The bottom of the internal threaded hole is a pressure platform. The outer wall of the inner clamping platform 92 has a fifth conical surface with a semi-circular groove. One end of the outer wall of the outer clamping sleeve 93 has an external thread, and the inner wall of the outer clamping sleeve 93 near the external thread has a sixth conical surface. The end of the logging wire passes through the outer clamping sleeve 93 and the semi-circular groove. The inner clamping platform 92 is inserted into the outer clamping sleeve 93, and the pressure cap 91 is threadedly connected to the outer clamping sleeve 93. The pressure platform makes the fifth and sixth conical surfaces fit together, thus clamping the end of the logging wire.

[0084] Specifically, the outer wall of the outer sleeve 93 is provided with a variable diameter cylindrical structure at the end away from the external thread, which is used to cooperate with the groove of the first screw sleeve 5 or the second screw sleeve 10.

[0085] Embodiment 3

[0086] On the basis of Embodiment 1 or 2, the embodiment provides a use method of the Martin tension calibration device, comprising the following steps:

[0087] S1, before calibrating the Martin tension system, different diameter cables 7 or logging steel wires are clamped and locked with the first clamp head 6 and the second clamp head 9 according to the length of the support rod 8 to form a set of clamped cables or clamped logging steel wires, the overall length of which is less than 200mm of the support rod 8, so as to facilitate matching calibration with the Martin tension of the corresponding diameter cable 7 or logging steel wire, and the set of clamped cables or clamped logging steel wires can be used for a long time without damage and need not be made once before each calibration.

[0088] S2, when the Martin tension calibration device is used, the logging cable or the logging steel wire is taken off from the Martin on the winch warehouse of the well testing vehicle, and the clamped cable or the clamped logging steel wire is installed on the measuring wheel and the guide wheel of the Martin.

[0089] Then the first vertical plate 4 and the second vertical plate 11 are respectively arranged on the front and rear sides of the Martin, the four support rods 8 are clamped, the clamped cable or the clamped logging steel wire is clamped on the first screw sleeve 5 and the second screw sleeve 10, and the signal transmission line 2 is connected with the pressure sensor 1 and the portable tension display instrument 3.

[0090] The portable tension display instrument 3 display switch is pressed down, the ratchet wrench 12 is installed on the worm 14, the ratchet wrench 12 is repeatedly moved to drive the turbine 35 to rotate, the clamped cable or the clamped logging steel wire is loaded and tensioned from 0kN by the turbine worm tensioning device according to the tension value that can be borne by the clamped cable or the clamped logging steel wire, and gradually reaches 5 standard tension values, 5 measurement values corresponding to the 5 standard tension values are recorded respectively, 5 point scales are recorded, a 5 point scale tension fitting coefficient is calculated, and the coefficient is input to the winch panel.

[0091] Then the clamped cable or the clamped logging steel wire is loaded and tensioned from 0kN by the turbine worm tensioning device again, gradually reaches 5 standard tension values, the values measured by the Martin tension system are verified to be consistent with the corresponding values, the utility model is disassembled in the opposite order, the winch cable is installed back to the calibrated Martin, and the calibration of the Martin tension system is completed.

[0092] In the application, the parts themselves that are not discussed, and the connection modes of the parts in the application all belong to the known technology in the technical field. Direct application can be used, and details are not repeated.

[0093] In the present application, the term "a plurality of" refers to two or more, unless otherwise expressly specified. The terms "mounting", "connected", "connecting", "fixed", and the like should be understood broadly, for example, "connected" can be fixed connection, can also be detachable connection, or integrally connected; "connected" can be directly connected, can also be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0094] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application.

[0095] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean 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 present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0096] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A Martindale tensile calibration apparatus comprising a main frame, a tensioning device, a tensile measuring device, characterised in that, The main frame comprises a first vertical plate and a second vertical plate, and the first vertical plate and the second vertical plate are connected by a support rod; The first vertical plate is connected with a tension measuring device, the second vertical plate is connected with a tensioning device, the tensioning device is connected with a first clamping device, and the tension measuring device is connected with a second clamping device; in use, the first vertical plate and the second vertical plate are located on both sides of the Martin.

2. A Martens tension calibration device according to claim 1, characterised in that, The first vertical plate and the second vertical plate are both rectangular bodies, and four symmetrical notches are arranged at the four corners of the first vertical plate or the second vertical plate; The support rod is provided with a variable-diameter step at both ends, which is matched with the notches, and the both ends of the support rod are clamped with the corresponding notches on the first vertical plate and the second vertical plate.

3. A Martens tension calibration device according to claim 1, wherein, The first vertical plate is provided with a first through hole for passing through the first clamping device; The second vertical plate is provided with a second through hole for passing through the second clamping device.

4. A Martens tension calibration device according to claim 3, wherein, The tensioning device comprises a housing, a self-locking force increasing transmission mechanism and a rotary linear conversion mechanism; The input shaft of the self-locking force increasing transmission mechanism is provided with a connecting part which is connected with a rotating tool through the housing; The output shaft of the self-locking force increasing transmission mechanism is connected with the second clamping device through the rotary linear conversion mechanism.

5. A Martens tension calibration device according to claim 4, wherein, The self-locking force increasing transmission mechanism comprises a worm and a turbine; The worm is rotatably connected with the housing through a first type bearing, the turbine is rotatably connected with the housing through a second type bearing, and the worm is engaged with the turbine; The housing is fixed with the first type bearing through a bearing cover, and the housing is fixed with the second type bearing through an end cover.

6. A Martens tension calibration device according to claim 5, wherein, The rotary linear conversion mechanism comprises a screw rod, the turbine is provided with a threaded through hole in the center, and the screw rod is connected with the threaded through hole; An end surface of one end cover is provided with a clamping block matched with the rectangular notch, the clamping block makes the screw rod unable to rotate, and the screw rod can move forward and backward along the clamping block; The screw rod is connected with the second clamping device; An end surface of the housing away from the clamping block is connected with the second vertical plate.

7. A Martens tension calibration device according to claim 5, wherein, The tension measuring device comprises a pressure sensor and a portable tension display instrument; The pressure sensor is a spoke type annular hollow pressure sensor, the center of the pressure sensor is a pressure measuring through hole, the pressure measuring through hole is provided with an annular boss as a load loading area, and the annular boss is connected with the first clamping device; The pressure sensor is connected with the first vertical plate; The portable tension display instrument is electrically connected with the pressure sensor.

8. A Martens tension calibration device according to claim 7, characterised in that, The first clamping device comprises a first screw rod clamping sleeve and a first clamping head; One end of the first screw rod clamping sleeve is an external threaded rod structure, and the other end is a cylindrical hollow clamping groove structure, the external threaded rod of the first screw rod clamping sleeve passes through the pressure measuring through hole of the pressure sensor and is connected with the annular boss through a nut; The first clamping head is used for connecting a cable or a wireline end head, and the first clamping head is placed in the hollow clamping groove of the first screw rod clamping sleeve to transmit an axial load; The second clamping device comprises a second screw rod clamping sleeve and a second clamping head; One end of the second screw rod clamping sleeve is an external threaded rod structure, and the other end is a cylindrical hollow clamping groove structure, the screw rod is a hollow rod, and the external threaded rod of the second screw rod clamping sleeve passes through the screw rod and is connected with the screw rod through a nut; The second head is used for connecting a cable or a wireline end head, and is placed in a hollow clamping groove of the second screw sleeve to transmit axial load.

9. A Martens tension calibration device according to claim 8, wherein, The first head or the second head comprises an inner taper sleeve, a middle taper sleeve and an outer taper sleeve. The outer wall of the inner taper sleeve is provided with a first taper surface, and the inner wall of the inner taper sleeve is a straight hole. The outer wall of the middle taper sleeve is provided with a second taper surface, and the inner wall of the middle taper sleeve is provided with a third taper surface. The outer wall of the outer taper sleeve is provided with a fourth taper surface. The first taper surface, the second taper surface, the third taper surface and the fourth taper surface are in the same direction.

10. A Martens tension calibration device according to claim 8, wherein, The taper angle of the first taper surface is greater than that of the second taper surface, and the taper angle of the third taper surface is greater than that of the fourth taper surface. The outer wall of the inner taper sleeve is a variable-diameter cylindrical structure. The first head or the second head comprises a pressing cap, an inner clamping platform and an outer clamping sleeve. The pressing cap is a cylindrical structure, one end of the pressing cap is provided with an inner threaded hole, the bottom of the inner threaded hole is a pressing platform, the outer wall of the inner clamping platform is provided with a fifth taper surface, the fifth taper surface is provided with a semicircular groove, and the outer wall of the outer clamping sleeve is provided with an outer thread at one end. The pressing cap can be threadedly connected with the outer clamping sleeve, and the pressing platform makes the fifth taper surface and the sixth taper surface meet. The outer wall of the outer clamping sleeve is provided with a variable-diameter cylindrical structure at an end away from the outer thread.

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