Heavy steel cable drawing machine

Abstract

The invention discloses a heavy steel cable drawing machine. The heavy steel cable drawing machine comprises a double-output power cylinder, a first connecting base, a second connecting base, a guide rail and a fixed connecting base. The double-outlet power cylinder comprises a first movable end and a second movable end, the first connecting seat is detachably connected with the first movable end, and the second connecting seat is detachably connected with the second movable end; the first connecting seat and the fixed connecting seat can be matched for mounting a steel cable with a first preset length, and the second connecting seat and the fixed connecting seat can be matched for mounting a steel cable with a second preset length; when the steel cables with different lengths are tested, the appropriate connecting seat is selected to fix the steel cables, so that the test requirements can be met, the relative position of the double-output power cylinder and the fixed connecting seat does not need to be adjusted, the steel cables can be quickly fed, and the fatigue test can be carried out on the steel cables with more sizes; and the detachable connecting seat can also realize quick assembly and quick change of parts, so that more diversified test requirements are met, and the utilization rate of equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel cable fatigue testing, and in particular to a heavy steel cable drawing machine. Background Art

[0002] With the progress of industry, large and extra-large heavy-duty steel cables are being used more and more widely, and their quality requirements are becoming more and more perfect and strict.

[0003] Conventional drawing machines mostly use hydraulic cylinders to provide power to pull the steel cables. In order to ensure the strength and accuracy of the test, the movement stroke of the hydraulic cylinder is usually small. Once it is necessary to test steel cables of different batches with large size differences, it is necessary to change the position of the hydraulic cylinder or the reference fixture in advance to ensure that the steel cable can be tightened between the hydraulic cylinder and the reference fixture. However, for heavy equipment, changing the position of the structure is not only time-consuming and labor-intensive, but often requires high-precision debugging to ensure operational reliability. The traditional replacement and adjustment process is usually too heavy and slow, affecting the efficiency and accuracy of the test. Summary of the invention

[0004] The purpose of the present application is to overcome the deficiencies in the prior art and provide a heavy-duty steel cable drawing machine.

[0005] To achieve the above technical objectives, the present application provides a heavy-duty steel cable pulling machine, including: a double-outlet power cylinder, the double-outlet power cylinder includes a first movable end and a second movable end, the first movable end and the second movable end are arranged opposite to each other along a first horizontal direction; a first connecting seat, which is detachably connected to the first movable end; a second connecting seat, which is detachably connected to the second movable end; a guide rail, which is extended along the first horizontal direction, and the first connecting seat and the second connecting seat are both slidably arranged on the guide rail; a fixed connecting seat, which is arranged on one side of the double-outlet power cylinder along the first horizontal direction; wherein the first connecting seat and the fixed connecting seat can cooperate to install a steel cable of a first preset length, and the second connecting seat and the fixed connecting seat can cooperate to install a steel cable of a second preset length, and the second preset length is greater than the first preset length.

[0006] Furthermore, the heavy-duty wire rope pulling machine also includes: a first heavy nut, the first movable end and the connecting end of the first connecting seat are both provided with external threads, and the first movable end and the first connecting seat can be locked by the first heavy nut; a second heavy nut, the second movable end and the connecting end of the second connecting seat are both provided with external threads, and the second movable end and the second connecting seat can be locked by the second heavy nut.

[0007] Furthermore, a circle of turbine is provided on the outer surface of the first reassembly nut and / or the second reassembly nut, and the turbine is used to engage with the worm; after the turbine engages with the worm, the worm rotates, and the first reassembly nut can be threadedly connected with the first movable end and the first connecting seat, and the second reassembly nut can be threadedly connected with the second movable end and the second connecting seat; and / or, the threads on the first movable end and the first connecting seat have opposite rotation directions, and the inner ring of the first reassembly nut is provided with a bidirectional internal thread; and / or, the threads on the second movable end and the second connecting seat have opposite rotation directions, and the inner ring of the second reassembly nut is provided with a bidirectional internal thread.

[0008] Furthermore, the first connecting seat and / or the second connecting seat includes: a base, which is slidably arranged on the guide rail, a notch is provided on the side of the base facing away from the double-outlet power cylinder, and a longitudinally extending socket is also provided on the base, and the notch is connected to the socket; a locking column, which is detachably inserted into the socket; during testing, one end of the steel cable is fixed on the locking column and restricted in the notch.

[0009] Furthermore, an internal thread is provided in the socket, and an external thread is provided on the outer surface of the lock column, so that the lock column can be threadedly connected to the base; and / or, a circle of mounting steps is provided on the lock column, and a plurality of mounting holes arranged at intervals along the circumferential direction are provided on the mounting steps, and a plurality of threaded holes arranged at intervals along the circumferential direction are provided on the base. After the lock column is inserted into the socket, the mounting steps abut against the base, so that the mounting holes on the mounting steps correspond one-to-one with the threaded holes on the base, and screwing in screws can fasten the lock column and the base.

[0010] Furthermore, the guide rail includes a middle rail, a first side rail and a second side rail, the middle rail, the first side rail and the second side rail are all extended along the first horizontal direction, the middle rail is arranged between the first side rail and the second side rail, the guide surface of the middle rail faces upward, and the guide surfaces of the first side rail and the second side rail face each other; the first connecting seat and the second connecting seat are both provided with: a first roller, which is rotatably arranged on the bottom surface of the first connecting seat or the second connecting seat and is rollably arranged on the middle rail; a second roller, which is rotatably arranged on one side of the first connecting seat or the second connecting seat and is rollably arranged on the first side rail; a third roller, which is rotatably arranged on the other side of the first connecting seat or the second connecting seat and is rollably arranged on the second side rail.

[0011] Furthermore, the heavy-duty steel cable pulling machine is arranged in a safety guard seat, and the safety guard seat includes an open state and a closed state; when the safety guard seat is in the open state, the heavy-duty steel cable pulling machine is exposed to the outside to facilitate the replacement of the steel cable; when the safety guard seat is in the closed state, the heavy-duty steel cable pulling machine performs testing operations to avoid external damage caused by breakage of the steel cable during the test.

[0012] Furthermore, the heavy-duty cable pulling machine also includes: a first support, arranged along the first horizontal direction on a side of the first movable end away from the second movable end; a first reinforcing rod, arranged between the cylinder body of the double-outlet power cylinder and the first support; a second support, arranged along the first horizontal direction on a side of the second movable end away from the first movable end; a second reinforcing rod, arranged between the cylinder body of the double-outlet power cylinder and the second support; the first connecting seat, the second connecting seat, the guide rail and the fixed connecting seat are all arranged between the first support and the second support.

[0013] Furthermore, the heavy-duty steel cable pulling machine also includes a pressure sensor, which is arranged on the fixed connection seat; during the test, the double-outlet power cylinder pulls the steel cable, and the steel cable pulls the fixed connection seat, and the pressure sensor can detect the tension exerted on the fixed connection seat.

[0014] Furthermore, the heavy-duty wire rope pulling machine also includes: a fluid supply mechanism for supplying power fluid to the double-outlet power cylinder; and a cooling mechanism. When the fluid returns, the high-temperature power fluid is cooled by the cooling mechanism and then flows back to the fluid supply mechanism.

[0015] The present application provides a heavy-duty steel cable pulling machine, comprising a double-outlet power cylinder, a first connecting seat, a second connecting seat, a guide rail and a fixed connecting seat; the double-outlet power cylinder comprises a first movable end and a second movable end, the first connecting seat is detachably connected to the first movable end, and the second connecting seat is detachably connected to the second movable end; the first connecting seat and the fixed connecting seat can cooperate to install a steel cable of a first preset length, and the second connecting seat and the fixed connecting seat can cooperate to install a steel cable of a second preset length; since the double-outlet power cylinder has two movable ends, when testing steel cables of different lengths, selecting a suitable connecting seat to fix the steel cable can meet the test needs, and there is no need to adjust the relative position of the double-outlet power cylinder and the fixed connecting seat, which can not only quickly realize the loading of the steel cable, but also adapt to more sizes of steel cables for fatigue testing; the detachable connecting seat can also realize quick installation and quick replacement of parts, meet more diverse testing needs, and improve the utilization rate of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a heavy-duty steel cable drawing machine provided for this application; Figure 2 A schematic diagram of the structure of another heavy-duty steel cable pulling machine provided for this application; Figure 3 A structural schematic diagram of another heavy-duty steel cable pulling machine provided for this application; Figure 4 for Figure 3 A magnified schematic diagram of the structure in the middle circle; Figure 5 for Figure 3 A schematic diagram of the structure of the heavy-duty cable pulling machine including the heavy-duty nut, the movable end and the connecting seat; Figure 6 for Figure 3 A schematic structural diagram of a first connecting seat or a second connecting seat in a heavy-duty steel cable pulling machine is shown. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0018] The present application provides a heavy-duty steel cable pulling machine, comprising: a double-outlet power cylinder 100, the double-outlet power cylinder 100 comprises a first movable end 110 and a second movable end 120, the first movable end 110 and the second movable end 120 are arranged opposite to each other along a first horizontal direction; a first connecting seat 210, which is detachably connected to the first movable end 110; a second connecting seat 220, which is detachably connected to the second movable end 120; a guide rail 300, which is extended along the first horizontal direction, and the first connecting seat 210 and the second connecting seat 220 are both slidably arranged on the guide rail 300; a fixed connecting seat 400, which is arranged on one side of the double-outlet power cylinder 100 along the first horizontal direction; wherein the first connecting seat 210 and the fixed connecting seat 400 can cooperate to install a steel cable of a first preset length, and the second connecting seat 220 and the fixed connecting seat 400 can cooperate to install a steel cable of a second preset length, and the second preset length is greater than the first preset length.

[0019] The double-output power cylinder 100 may adopt any driving mechanism with two movable ends, such as a pneumatic cylinder, an oil cylinder, an electric cylinder, etc. Figure 1 In the illustrated embodiment, the first horizontal direction is the left-right direction; the double-outlet power cylinder 100 is arranged along the left-right direction, and the first movable end 110 and the second movable end 120 can both perform telescopic movements along the left-right direction; the first movable end 110 is arranged on the right and can extend to the right or retract to the left, and the second movable end 120 is arranged on the left and can extend to the left or retract to the right.

[0020] Optionally, the double-outlet power cylinder 100 is an oil cylinder, and the first movable end 110 and the second movable end 120 are two piston rods of the oil cylinder.

[0021] Optionally, the dual-output power cylinder 100 adopts a single-cylinder single-oil circuit, and the first movable end 110 and the second movable end 120 extend outward or retract inward synchronously.

[0022] Optionally, the double-output power cylinder 100 adopts a single-cylinder dual-oil circuit, and the first movable end 110 and the second movable end 120 are respectively powered by an independent oil circuit, and the telescopic movements of the first movable end 110 and the second movable end 120 do not interfere with each other.

[0023] The first connection seat 210, the second connection seat 220 and the fixed connection seat 400 can adopt any structure capable of fixing the steel cable.

[0024] For example, the connection seat is configured in the form of a clamp or a manipulator capable of clamping the steel cable.

[0025] For another example, one end of the steel cable is formed into a ring by punching, and the connecting seat is configured as a sleeve, and the steel cable can be sleeved on the connecting seat.

[0026] The present application does not limit the specific configurations of the first connection socket 210 , the second connection socket 220 and the fixed connection socket 400 .

[0027] Figure 1 In the illustrated embodiment, the fixed connection seat 400 is disposed on the right side of the double-outlet power cylinder 100, close to the first connection seat 210 and away from the second connection seat 220; at the same time, the first connection seat 210, the second connection seat 220 and the fixed connection seat 400 are arranged in a straight line in the left-right direction. The first connection seat 210 cooperates with the fixed connection seat 400 to tension a steel cable of a shorter length; the second connection seat 220 cooperates with the fixed connection seat 400 to tension a steel cable of a longer length.

[0028] Specifically, when fatigue testing is performed on multiple batches of steel cables, the steel cables whose lengths meet the first preset length can be fixed and tensioned at both ends by the first connection seat 210 and the fixed connection seat 400, and then the double-outlet power cylinder 100 retracts the first movable end 110, the fixed connection seat 400 remains in position, and the first connection seat 210 pulls the steel cables away from the fixed connection seat 400, thereby confirming the tensile strength of the steel cables. The steel cables whose lengths meet the second preset length can be fixed and tensioned at both ends by the second connection seat 220 and the fixed connection seat 400, and then the double-outlet power cylinder 100 extends the second movable end 120, the fixed connection seat 400 remains in position, and the second connection seat 220 pulls the steel cables away from the fixed connection seat 400, thereby confirming the tensile strength of the steel cables.

[0029] It should be noted that the length of heavy steel cables often reaches dozens, even hundreds of meters, and their diameter and weight are also very considerable. Therefore, the double-outlet power cylinder 100 used in this application is also heavy and large-load driven. In some embodiments, the length of the double-outlet power cylinder 100 can also reach several meters or even more than ten meters.

[0030] It should also be noted that the first preset length and the second preset length described in the present application can be a specific value or a range of values, and the range is determined by the output stroke of the dual-output power cylinder 100.

[0031] It is easy to understand that the difference between the first preset length and the second preset length is related to the size and output stroke of the dual-output power cylinder 100. In some embodiments, the difference between the first preset length and the second preset length is not less than 10m.

[0032] In summary, since the double-outlet power cylinder 100 has two movable ends and the distance between the two movable ends is large, when testing steel cables of different lengths, selecting a suitable connecting seat to fix the steel cable can meet the test needs. There is no need to adjust the relative position of the double-outlet power cylinder 100 and the fixed connecting seat 400, which can not only quickly realize the loading of the steel cable, but also adapt to steel cables of more sizes for fatigue testing.

[0033] In one embodiment, referring to Figure 1 The fixed connecting seat 400 has two positions for fixing steel cables; in the double-outlet power cylinder 100, the first movable end 110 and the second movable end 120 transmit power by independent power paths; during one test, two steel cables whose positions do not interfere with each other can be set between the first connecting seat 210 and the fixed connecting seat 400, and between the second connecting seat 220 and the fixed connecting seat 400, so as to complete the pulling test of the two steel cables during one fatigue test.

[0034] The heavy-duty steel cable pulling machine provided in this application can flexibly cope with steel cables of different lengths without the need for complicated adjustment steps, thus reducing time and effort; at the same time, through the optimized adjustment mechanism, the loading time of long and short steel cables is greatly reduced, thereby improving the test efficiency; in addition, the simplified adjustment process makes the operation more intuitive, reduces the skill requirements for the operator, and can avoid manual mistakes and errors.

[0035] Furthermore, the first connecting seat 210 and the second connecting seat 220 are detachably connected to the dual-outlet power cylinder 100. On the one hand, it is convenient for the manufacture, transportation, on-site assembly and subsequent inspection, maintenance and replacement of parts. On the other hand, different connecting seats can be replaced according to the configuration of the steel cable in actual use.

[0036] For example, if a pulling test is required on a steel cable of a shorter length, before installing the steel cable, the first connecting seat 210 is replaced with a longer version so that the distance between the first connecting seat 210 and the fixed connecting seat 400 is reduced. In this way, the first preset length and the second preset length can be changed conveniently and efficiently through adaptive changes of parts without changing the position of the machine or the output stroke of the dual-output power cylinder 100.

[0037] Since the drawing machine provided in the present application is used to test heavy steel cables, a guide rail 300 is added to ensure the stability of the operation of the first connection seat 210 and the second connection seat 220. The guide rail 300 can not only limit the drawing direction and ensure the accuracy of the test, but also support the first connection seat 210 and the second connection seat 220 to prevent the two from displacing or moving in the wrong direction during the extension and retraction process, thereby further ensuring the reliability and safety of the test.

[0038] The guide rail 300 may adopt a slide groove, and a slider is provided on the first connection seat 210 and the second connection seat 220, and the slider is slidably arranged in the slide groove to ensure the guide positioning; or the guide rail 300 may adopt a guide rail, and a roller is provided on the first connection seat 210 and the second connection seat 220, and the roller is rollably arranged in the guide rail to ensure the guide positioning; or the guide rail 300 may adopt a guide rod, and a sliding sleeve is provided on the first connection seat 210 and the second connection seat 220, and the sliding sleeve is sleeved on the guide rod to ensure the guide positioning. The present application does not limit the specific configuration of the guide structure.

[0039] In summary, by further flexibly setting up a detachable connection seat and supplementing it with a guide structure, quick installation and replacement of parts can be achieved to meet more diverse testing needs; the significant shortening of replacement and adjustment time enables the test to be carried out more efficiently, thereby improving the utilization rate of equipment; the overall operating cost can be controlled due to the reduction in operation time and labor intensity; the standardized and modular component design reduces the errors caused by manual operation and improves the accuracy and reliability of test data.

[0040] Optionally, the heavy-duty steel cable pulling machine provided in the present application further includes a second fixed connection seat 400b, which is arranged opposite to the fixed connection seat 400 along the first horizontal direction, and the double-outlet power cylinder 100 is arranged between the second fixed connection seat 400b and the fixed connection seat 400.

[0041] For details, please refer to Figure 2 In the illustrated embodiment, the first horizontal direction is the left-right direction, the fixed connecting seat 400 is arranged on the right side of the double-outlet power cylinder 100, opposite to the first connecting seat 210, and the second fixed connecting seat 400b is arranged on the left side of the double-outlet power cylinder 100, opposite to the second connecting seat 220.

[0042] A fixed connecting seat is added. When the first movable end 110 and the second movable end 120 transmit power via independent power paths, the first movable end 110 cooperates with the fixed connecting seat 400, and the second movable end 120 cooperates with the second fixed connecting seat 400b, so that pull-out tests of two steel cables with a first preset length can be performed simultaneously; or, the first movable end 110 cooperates with the second fixed connecting seat 400b, and the second movable end 120 cooperates with the fixed connecting seat 400, so that pull-out tests of two steel cables with a second preset length can be performed simultaneously.

[0043] Providing two fixed connection sockets can meet more diverse testing needs and further improve testing efficiency.

[0044] To facilitate the connection between the double-outlet power cylinder 100 and the first connecting seat 210 and the second connecting seat 220, in one embodiment, the heavy-duty wire rope pulling machine provided in the present application also includes: a first heavy nut 510, the connecting ends of the first movable end 110 and the first connecting seat 210 are both provided with external threads, and the first heavy nut 510 can be used to lock the first movable end 110 and the first connecting seat 210; a second heavy nut 520, the connecting ends of the second movable end 120 and the second connecting seat 220 are both provided with external threads, and the second heavy nut 520 can be used to lock the second movable end 120 and the second connecting seat 220.

[0045] For details, please refer to Figure 3 and Figure 5 In the illustrated embodiment, the first movable end 110 and the second movable end 120 are both configured in the shape of a long axis, and the end thereof away from the cylinder body of the double-output power cylinder 100 is configured in the shape of a screw. The first connecting seat 210 and the second connecting seat 220 are provided with a connecting shaft, and the end of the connecting shaft away from the seat body is also configured in the shape of a screw. The inner ring of the reinstalling nut is provided with an internal thread. Through the threaded connection, the first reinstalling nut 510 can lock the first movable end 110 and the first connecting seat 210, and the second reinstalling nut 520 can lock the second movable end 120 and the second connecting seat 220.

[0046] Fastening the movable end and the connecting seat by threaded connection can not only ensure the axial fastening force and stability, but also reduce radial vibration and prevent radial movement and unhooking. In addition, by rotating the reinstallation nut, the movable end and the connecting seat can be easily connected or disconnected.

[0047] It should be added that the heavy-duty nut has a larger configuration and weight to ensure that it can fasten the large double-outlet power cylinder 100 and the connecting seat.

[0048] To facilitate the rotation of the reassembly nut, in one embodiment, a circle of turbine 511 is provided on the outer surface of the first reassembly nut 510 and / or the second reassembly nut 520, and the turbine 511 is used to engage with the worm 512; after the turbine teeth 511 engage with the worm 512, the worm 512 rotates, and the first reassembly nut 510 can be threadedly connected to the first movable end 110 and the first connecting seat 210, and the second reassembly nut 520 can be threadedly connected to the second movable end 120 and the second connecting seat 220.

[0049] For details, please refer to Figure 5In the illustrated embodiment, the first reinstalling nut 510 is provided in a cylindrical shape, and a ring-shaped turbine 511 composed of teeth is provided on its outer cylindrical surface. During installation, a worm 512 and a driving motor are required; the worm 512 is meshed with the turbine 511, and the worm 512 is driven to rotate by the driving motor, and the worm 512 can drive the first reinstalling nut 510 to rotate through the turbine 511. When the first reinstalling nut 510 contacts the first movable end 110 or the first connecting seat 210 through the internal and external threads, the thread structure can convert the rotational motion of the first reinstalling nut 510 into the axial translational motion of the first reinstalling nut 510 and the first movable end 110, or the first reinstalling nut 510 and the first connecting seat 210, and then the first movable end 110 and the first connecting seat 210 are locked by the first reinstalling nut 510.

[0050] Since the reinstallation nut has a large mass and the overall structure is a regular symmetrical form, in one assembly method, the first reinstallation nut 510 (the second reinstallation nut 520 is the same and will not be repeated here) is hung at the installation station; after confirming that the first reinstallation nut 510 is in a balanced state, the portion of the first movable end 110 with an external thread is inserted into the first reinstallation nut 510 from one side, and the first movable end 110 and the first reinstallation nut 510 are locked by the rotational cooperation of the turbine 511 and the worm 512; similarly, after confirming that the first reinstallation nut 510 is in a balanced state, the portion of the first connecting seat 210 with an external thread is inserted into the first reinstallation nut 510 from the other side, and the first connecting seat 210 and the first reinstallation nut 510 are locked by the rotational cooperation of the turbine 511 and the worm 512.

[0051] Optionally, the threads on the first movable end 110 and the first connecting seat 210 have opposite rotation directions, and the inner ring of the first reassembly nut 510 is provided with a bidirectional internal thread.

[0052] Optionally, the threads on the second movable end 120 and the second connecting seat 220 have opposite rotation directions, and the inner ring of the second reassembly nut 520 is provided with a bidirectional internal thread.

[0053] Taking the first reinstallation nut 510 as an example, since the first reinstallation nut 510 is a bidirectional threaded nut, and the threads of the first movable end 110 and the first connecting seat 210 to be assembled have opposite rotation directions, during installation, the first reinstallation nut 510 is hung at the installation station and is in a balanced state, so that the part with external threads of the first movable end 110 is inserted into the first reinstallation nut 510 from one side, and the part with external threads of the first connecting seat 210 is inserted into the first reinstallation nut 510 from the other side, and the first reinstallation nut 510 rotates, the first movable end 110 can be axially translated toward the first connecting seat 210, and the first connecting seat 210 can be axially translated toward the first movable end 110 at the same time. In this way, the installation of the double-outlet power cylinder 100 and the connecting seat can be further simplified.

[0054] Optionally, the first connecting seat 210 and / or the second connecting seat 220 include: a base 211, which is slidably set on the guide rail 300, and a notch 211a is provided on the side of the base 211 away from the double-outlet power cylinder 100, and a longitudinally extending socket 211b is also provided on the base 211, and the notch 211a is connected to the socket 211b; a locking column 212, which is detachably inserted into the socket 211b; during testing, one end of the steel cable is fixed on the locking column 212 and restricted in the notch 211a.

[0055] For details, please refer to Figure 3 In the illustrated embodiment, the first connection base 210, the second connection base 220 and the fixed connection base 400 have the same configuration. Figure 4 and Figure 6 , a notch 211a is provided at one end of the base 211 facing the steel cable, and the steel cable can be loaded into the base 211 through the notch 211a; a plug hole 211b is provided in the middle of the base 211, and the plug hole 211b passes through the top surface of the base 211 and extends longitudinally to communicate with the notch 211a. The lock column 212 is inserted into the plug hole 211b, and the top end of the lock column 212 is exposed to the outside, and the bottom end is inserted into the notch 211a and fixed to the base 211. Therefore, there will be a section of column in the notch 211a. When connecting the steel cable, one end of the steel cable is tied to the column in the notch 211a. At this time, the upper and lower sides of the steel cable are blocked by the upper and lower walls of the notch 211a. The constraint of the notch 211a can effectively avoid the longitudinal displacement of the steel cable, thereby ensuring the horizontal extension state and position stability of the steel cable during the test.

[0056] It is easy to understand that if the steel cable is knotted around the locking column 212 during installation, it is not only complicated and difficult, but also affects the test length of the steel cable. For this reason, in some embodiments, the end of the steel cable is pre-knotted or a ring is installed at the end before testing, and the end of the steel cable is directly put on the locking column 212 during testing.

[0057] To facilitate direct installation of the steel cable, optionally, an internal thread is provided in the insertion hole 211 b , and an external thread is provided on the outer surface of the locking column 212 , so that the locking column 212 can be threadedly connected to the base 211 .

[0058] When installing the steel cable, first unscrew the lock column 212 so that the bottom end of the lock column 212 is suspended in the air, then insert the steel cable into the notch 211a so that the ring at the end of the steel cable faces the lock column 212, and then screw in the lock column 212 so that the bottom end of the lock column 212 passes through the ring and is connected to the base 211. After the test is completed, unscrew the lock column 212 again to conveniently replace the steel cable.

[0059] By providing the matching structure of the internal and external threads, the locking column 212 and the base 211 can be conveniently and reliably fixed or released by rotation.

[0060] It can be added that, in order to ensure the stability of the installation of the lock column 212, the insertion hole 211b can vertically penetrate the base 211. At this time, after the lock column 212 is inserted into the insertion hole 211b, the bottom end can pass through the notch 211a and penetrate into the base 211 or even protrude from the bottom surface of the base 211. Further, when the insertion hole 211b is provided with an internal thread and the lock column 212 is provided with an external thread, the upper and lower parts of the lock column 212 can be fixed to the base 211 by threaded connection; in this way, the lock column 212 can be effectively prevented from being displaced or moved due to the tension of the steel cable.

[0061] Optionally, a circle of mounting steps is provided on the locking column 212, and a plurality of mounting holes arranged at intervals along the circumferential direction are provided on the mounting steps. A plurality of threaded holes arranged at intervals along the circumferential direction are provided on the base 211. After the locking column 212 is inserted into the socket 211b, the mounting steps abut against the base 211, so that the mounting holes on the mounting steps correspond one-to-one with the threaded holes on the base 211, and screwing in screws can fasten the locking column 212 and the base 211.

[0062] Specifically, a circle of cylindrical mounting steps is provided on the upper part of the locking column 212, and the outer diameter of the mounting steps is larger than the inner diameter of the insertion hole 211b; after the lower part of the locking column 212 is inserted into the insertion hole 211b, the mounting steps can be against the top of the insertion hole 211b. A plurality of countersunk holes (which can also be ordinary through holes or threaded holes) are provided on the mounting steps, and the plurality of countersunk holes are evenly spaced along the circumferential direction; correspondingly, a plurality of threaded holes are provided on the upper surface of the base 211, and the threaded holes on the base 211 correspond to the countersunk holes on the mounting steps one by one; after the locking column 212 is inserted into the insertion hole 211b and the mounting steps are against the base 211, the countersunk holes are connected to the threaded holes, screws are screwed into the two, and the locking column 212 and the base 211 can be fastened with screws.

[0063] Further reinforcing the locking column 212 and the base 211 by screws can better ensure the position stability and state reliability of the locking column 212 .

[0064] Optionally, the guide rail 300 includes a middle rail 310, a first side rail 320 and a second side rail 330, the middle rail 310, the first side rail 320 and the second side rail 330 are all extended along the first horizontal direction, the middle rail 310 is arranged between the first side rail 320 and the second side rail 330, the guide surface of the middle rail 310 faces upward, and the guide surfaces of the first side rail 320 and the second side rail 330 face each other; the first connecting seat 210 and the second connecting seat 220 are both provided with: a first roller 213, which is rotatably arranged on the bottom surface of the first connecting seat 210 or the second connecting seat 220 and is rollably arranged on the middle rail 310; a second roller 214, which is rotatably arranged on one side of the first connecting seat 210 or the second connecting seat 220 and is rollably arranged on the first side rail 320; a third roller 215, which is rotatably arranged on the other side of the first connecting seat 210 or the second connecting seat 220 and is rollably arranged on the second side rail 330.

[0065] For details, please refer to Figure 3 , Figure 4 and Figure 6 In the illustrated embodiment, the drawing machine includes two sets of guide rails 300 , which extend in the same direction, wherein one set of guide rails 300 is used to support the first connecting seat 210 , and the other set of guide rails 300 is used to support the second connecting seat 220 .

[0066] Continue to refer to Figure 4 Any set of guide rails 300 includes a middle rail 310, a first side rail 320 and a second side rail 330, and the three rails are arranged in parallel. The middle rail 310 is arranged between the first side rail 320 and the second side rail 330; the middle rail 310 is a common flat rail, and its guide surface is its upper surface. The bottom surfaces of the first connecting seat 210 and the second connecting seat 220 are provided with at least one first roller 213, and the first roller 213 is rollably arranged on the middle rail 310. The first side rail 320 and the second side rail 330 face each other, and the first connecting seat 210 and the second connecting seat 220 are respectively provided with a second roller 214 and a third roller 215 on both sides, and the second roller 214 is rollably arranged on the first side rail 320, and the third roller 215 is rollably arranged on the second side rail 330; the first connecting seat 210 and the second connecting seat 220 are limited between the two sets of side rails.

[0067] Specifically, the middle rail 310, the first side rail 320 and the second side rail 330 can all limit the movement direction of the first connection seat 210 or the second connection seat 220. The three cooperate to strengthen the guiding and positioning function, which is conducive to ensuring the movement stability and accuracy of the large connection seat. At the same time, the middle rail 310 can support the first connection seat 210 or the second connection seat 220 from bottom to top, and the first side rail 320 and the second side rail 330 cooperate to support and limit the first connection seat 210 or the second connection seat 220 from both sides, thereby preventing the first connection seat 210 and the second connection seat 220 from being displaced or moved along the second horizontal direction during the movement.

[0068] Optionally, the first side rail 320 and the second side rail 330 are racks extending along the first horizontal direction; the second roller 214 and the third roller 215 are gears that can mesh with the racks.

[0069] The matching structure of the gear and rack not only meets the requirements of support, guidance and limitation, but also enhances the structural internal stress of the connecting seat and the side rail during the relative movement, which can avoid problems such as slipping and offset when the heavy structure moves quickly. The order advancement of teeth can also play a role in shock absorption and speed balancing.

[0070] Optionally, the heavy-duty steel cable pulling machine is arranged in the safety guard seat 1, and the safety guard seat 1 includes an open state and a closed state; when the safety guard seat 1 is in the open state, the heavy-duty steel cable pulling machine is exposed to the outside to facilitate the replacement of the steel cable; when the safety guard seat 1 is in the closed state, the heavy-duty steel cable pulling machine performs testing operations to avoid external damage caused by the breakage of the steel cable during the test.

[0071] For details, please refer to Figure 3 In the illustrated embodiment, the safety guard seat 1 is arranged in a square frame shape, and the top cover of the safety guard seat 1 is arranged in a flippable form. A cylinder is arranged on one side of the safety guard seat 1, and the cylinder is connected to the top cover, and the cylinder is used to realize the pneumatic flip cover. When the steel cable needs to be replaced, the top cover is opened; after the steel cable is installed in place, the top cover is closed, and the pull-out test of the steel cable can be carried out in the safety guard seat 1.

[0072] The safety guard 1 is provided to protect the drawing machine and reduce noise, and the steel cable is enclosed inside during testing, and external damage can be avoided when the steel cable breaks.

[0073] The present application does not limit the specific configuration and opening method of the safety seat 1. In other embodiments, a sliding door, a folding door, etc. can also be provided to realize the opening and closing of the safety seat 1.

[0074] Optionally, the heavy-duty cable pulling machine provided in the present application also includes: a first support 610, which is arranged along the first horizontal direction on the side of the first movable end 110 away from the second movable end 120; a first reinforcing rod 620, which is arranged between the cylinder body of the double-outlet power cylinder 100 and the first support 610; a second support 630, which is arranged along the first horizontal direction on the side of the second movable end 120 away from the first movable end 110; a second reinforcing rod 640, which is arranged between the cylinder body of the double-outlet power cylinder 100 and the second support 630; the first connecting seat 210, the second connecting seat 220, the guide rail 300 and the fixed connecting seat 400 are all arranged between the first support 610 and the second support 630.

[0075] For details, please refer to Figure 1 In the illustrated embodiment, the first horizontal direction is the left-right direction; the first support 610 is arranged on the right side of the double-outlet power cylinder 100, and a plurality of first reinforcing rods 620 are arranged between the first support 610 and the double-outlet power cylinder 100; the second support 630 is arranged on the left side of the double-outlet power cylinder 100, and a plurality of second reinforcing rods 640 are arranged between the second support 630 and the double-outlet power cylinder 100. Among them, the first support 610, the second support 630 and the double-outlet power cylinder 100 are all fixedly arranged on the workstation.

[0076] Continue to refer to Figure 1 The first connecting seat 210 and the fixed connecting seat 400 are arranged between the first support 610 and the double-output power cylinder 100, and the second connecting seat 220 is arranged between the second support 630 and the double-output power cylinder 100.

[0077] A first fixed support 610 and a second support 630 are added, and reinforcing rods are respectively added between the first support 610 and the double-outlet power cylinder 100 and between the second support 630 and the double-outlet power cylinder 100. On the basis of stabilizing the position and power of the double-outlet power cylinder 100, the force transmission effect between the structures is used to reduce the influence of the reverse force during the telescopic movement of the first movable end 110 and the second movable end 120, thereby enhancing the stability of the double-outlet power cylinder 100 and achieving the effects of shock absorption and noise reduction.

[0078] Optionally, the heavy-duty steel cable pulling machine provided in the present application also includes a pressure sensor, which is arranged on the fixed connection seat 400; during the test, the double-outlet power cylinder 100 pulls the steel cable, and the steel cable pulls the fixed connection seat 400, and the pressure sensor can detect the tension exerted on the fixed connection seat 400.

[0079] It is easy to understand that tension is an important parameter in the cable pulling test. Adding a pressure sensor can confirm whether the pulling test is carried out normally and whether it ends normally.

[0080] By placing the tension sensor on the fixed connection seat 400 , it is also possible to prevent the instantaneous vibration of the double-output power cylinder 100 during operation from affecting the detection value, thereby further ensuring the reliability of the test parameter detection.

[0081] Optionally, the heavy-duty wire rope pulling machine provided in the present application further includes: a fluid supply mechanism 700 for providing power fluid to the double-outlet power cylinder 100; and a cooling mechanism 800, when the fluid is returned, the high-temperature power fluid is cooled by the cooling mechanism 800 and then flows back to the fluid supply mechanism 700.

[0082] In a specific embodiment, the double-outlet power cylinder 100 is an oil cylinder, and the liquid supply mechanism 700 is used to supply hydraulic oil to the double-outlet power cylinder 100. After the hydraulic oil is supplied to the double-outlet power cylinder 100 along the oil circuit, the hydraulic oil can push the first movable end 110 or the second movable end 120 to extend outward; the hydraulic oil flows out of the double-outlet power cylinder 100, and the first movable end 110 or the second movable end 120 retracts; during the flow of the hydraulic oil, the release of kinetic energy will generate heat, causing the hydraulic oil to heat up. In order to facilitate the recycling of the hydraulic oil, a cooling mechanism 800 is set downstream of the double-outlet power cylinder 100. After the high-temperature hydraulic oil flows through the cooling mechanism 800, it can be restored to normal temperature under the action of the cooling mechanism 800, and then the hydraulic oil flows back to the liquid supply mechanism 700 for easy recycling.

[0083] The cooling mechanism 800 may be a cooling structure such as a cooling tower or a heat exchanger, or may be a storage structure that can temporarily store hydraulic oil to facilitate natural cooling of the hydraulic oil.

[0084] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A heavy-duty steel cable drawing machine, characterized in that: include: A double-output power cylinder (100), the double-output power cylinder (100) comprising a first movable end (110) and a second movable end (120), the first movable end (110) and the second movable end (120) being arranged opposite to each other along a first horizontal direction; A first connecting seat (210) detachably connected to the first movable end (110); A second connecting seat (220) detachably connected to the second movable end (120); A guide rail (300) extending along the first horizontal direction, and the first connecting seat (210) and the second connecting seat (220) are both slidably arranged on the guide rail (300); A fixed connection seat (400) is arranged along the first horizontal direction on one side of the double-output power cylinder (100); The first connection seat (210) and the fixed connection seat (400) are capable of being used together to install a steel cable of a first preset length, and the second connection seat (220) and the fixed connection seat (400) are capable of being used together to install a steel cable of a second preset length, wherein the second preset length is greater than the first preset length.

2. The heavy-duty steel cable drawing machine according to claim 1, characterized in that: Also includes: A first reinstalling nut (510), wherein the first movable end (110) and the connecting end of the first connecting seat (210) are both provided with external threads, and the first movable end (110) and the first connecting seat (210) can be locked by the first reinstalling nut (510); The second reassembly nut (520) is provided with external threads on the connecting ends of the second movable end (120) and the second connecting seat (220). The second reassembly nut (520) can be used to lock the second movable end (120) and the second connecting seat (220).

3. The heavy-duty wire rope drawing machine according to claim 2, characterized in that: The outer surface of the first reassembly nut (510) and / or the second reassembly nut (520) is provided with a circle of turbine (511), and the turbine (511) is used to mesh with the worm (512); after the turbine (511) meshes with the worm (512), the worm (512) rotates, and the first reassembly nut (510) can be threadedly connected to the first movable end (110) and the first connecting seat (210), and the second reassembly nut (520) can be threadedly connected to the second movable end (120) and the second connecting seat (220); And / or, the threads on the first movable end (110) and the first connecting seat (210) have opposite rotation directions, and the inner ring of the first reinstallation nut (510) is provided with a bidirectional internal thread; And / or, the threads on the second movable end (120) and the second connecting seat (220) have opposite rotation directions, and the inner ring of the second reassembly nut (520) is provided with a bidirectional internal thread.

4. The heavy-duty wire rope drawing machine according to claim 1, characterized in that: The first connection socket (210) and / or the second connection socket (220) comprises: A base (211) is slidably disposed on the guide rail (300); a notch (211a) is provided on a side of the base (211) facing away from the double-output power cylinder (100); a longitudinally extending plug hole (211b) is also provided on the base (211); the notch (211a) is connected to the plug hole (211b); A locking column (212) is detachably inserted into the insertion hole (211b); During testing, one end of the steel cable is fixed on the locking column (212) and is restricted in the notch (211a).

5. The heavy-duty steel cable drawing machine according to claim 4, characterized in that: The insertion hole (211b) is provided with an internal thread, the outer surface of the locking column (212) is provided with an external thread, and the locking column (212) can be threadedly connected to the base (211); And / or, the lock column (212) is provided with a circle of mounting steps, the mounting steps are provided with a plurality of mounting holes arranged at intervals in the circumferential direction, the base (211) is provided with a plurality of threaded holes arranged at intervals in the circumferential direction, and after the lock column (212) is inserted into the insertion hole (211b), the mounting steps abut against the base (211), so that the mounting holes on the mounting steps correspond one-to-one with the threaded holes on the base (211), and screws are inserted to fasten the lock column (212) and the base (211).

6. The heavy-duty wire rope drawing machine according to claim 1, characterized in that: The guide rail (300) comprises a middle rail (310), a first side rail (320) and a second side rail (330); the middle rail (310), the first side rail (320) and the second side rail (330) are all extended along the first horizontal direction; the middle rail (310) is arranged between the first side rail (320) and the second side rail (330); the guide surface of the middle rail (310) faces upward, and the guide surfaces of the first side rail (320) and the second side rail (330) face each other; The first connecting seat (210) and the second connecting seat (220) are both provided with: A first roller (213) rotatably disposed on the bottom surface of the first connecting seat (210) or the second connecting seat (220), and rollably disposed on the middle rail (310); a second roller (214) rotatably disposed on one side of the first connecting seat (210) or the second connecting seat (220), and rollably disposed on the first side rail (320); The third roller (215) is rotatably disposed on the other side of the first connecting seat (210) or the second connecting seat (220), and is rollably disposed on the second side rail (330).

7. The heavy-duty wire rope drawing machine according to claim 1, characterized in that: The heavy-duty steel cable pulling machine is arranged in a safety guard seat (1), and the safety guard seat (1) includes an open state and a closed state; When the safety guard (1) is in the open state, the heavy-duty steel cable pulling machine is exposed to the outside, so as to facilitate replacement of the steel cable; When the safety guard seat (1) is in the closed state, the heavy-duty steel cable pulling machine performs a testing operation, thereby preventing damage to the outside caused by the breakage of the steel cable during the testing process.

8. The heavy-duty wire rope drawing machine according to claim 1, characterized in that: Also includes: A first support (610) is arranged along the first horizontal direction on a side of the first movable end (110) away from the second movable end (120); A first reinforcing rod (620) is provided between the cylinder body of the double-output power cylinder (100) and the first support (610); A second support (630) is arranged along the first horizontal direction on a side of the second movable end (120) away from the first movable end (110); A second reinforcing rod (640) is provided between the cylinder body of the double-output power cylinder (100) and the second support (630); The first connection seat (210), the second connection seat (220), the guide rail (300) and the fixed connection seat (400) are all arranged between the first support seat (610) and the second support seat (630).

9. The heavy-duty wire rope drawing machine according to claim 1, characterized in that: It also includes a pressure sensor, the pressure sensor being arranged on the fixed connection seat (400); During the test, the double-outlet power cylinder (100) pulls the steel cable, and the steel cable pulls the fixed connection seat (400), and the pressure sensor can detect the pulling force applied to the fixed connection seat (400).

10. The heavy-duty wire rope drawing machine according to claim 1, characterized in that: Also includes: A liquid supply mechanism (700), used for supplying power liquid to the double-output power cylinder (100); The cooling mechanism (800) is used for returning the liquid. The high-temperature power liquid is cooled by the cooling mechanism (800) and then flows back to the liquid supply mechanism (700).

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