Device and control system for preventing wire rope wear at the rope outlet on the top of the portal crane room

Abstract

The present invention discloses a device and control system for preventing wire rope wear at the rope outlet at the top of a gantry crane machine room. The device comprises: a support seat disposed at the rope outlet at the top of the machine room; a first rotating shaft mechanism disposed within the support seat; a first rotating wheel disposed on the first rotating shaft mechanism; a first driving mechanism connected to the first rotating shaft mechanism; a through-hole slideway disposed on the first rotating wheel; an extended end of the crane wire rope extending from the rope outlet at the top of the machine room passes through the through-hole slideway; a fixed base disposed on the first rotating wheel; a second rotating shaft mechanism disposed within the fixed base; a second rotating wheel disposed on the second rotating shaft mechanism and connected to the crane wire rope; and a second driving mechanism disposed on the second rotating wheel for adjusting the position of the crane wire rope. The technical solution disclosed by the present invention can adapt to changes in the angle of the wire rope during lifting operations, thereby preventing excessive wear of the wire rope at the rope outlet at the top of the crane machine room.

Description

Technical Field

[0001] The present invention relates to the technical field of portal cranes, and in particular to a device and a control system for preventing steel wire rope wear at a rope outlet at a top of a portal crane machine room. Background Art

[0002] A gantry crane is a heavy-duty piece of equipment commonly used to transport and move heavy objects in ports, docks, and other industrial environments. Through a series of mechanical transmission and control systems, it converts the power of the electric motor into the movement of the boom and hook, thereby lifting, moving, and positioning the load. During the lifting process, the electric motor drives the drum, and the wire rope on the drum is connected to the hook through a pulley block. As the drum rotates, the wire rope is wound up or released, thereby raising or lowering the hook.

[0003] Currently, during operation, the wire rope of a gantry crane is susceptible to friction with the roof of the machine room at the rope outlet, causing wear and tear on the wire rope, which reduces its service life. Furthermore, the wire rope is wound around a drum. During lifting operations, the wire rope on the drum contracts or extends, causing the angle of the wire rope at the rope outlet to change. This further increases friction between the wire rope and the roof of the machine room, which can seriously affect the crane's normal lifting operation.

[0004] Therefore, how to provide a device to prevent wire rope wear at the rope outlet at the top of the gantry crane machine room, which can adapt to the angle changes of the wire rope during the lifting operation, prevent excessive wear of the wire rope at the rope outlet at the top of the gantry crane machine room, and extend the service life of the wire rope has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a device and control system for preventing wire rope wear at the rope outlet at the top of the portal crane machine room, which can adapt to the angle changes of the wire rope during the lifting operation, prevent excessive wear of the wire rope at the rope outlet at the top of the portal crane machine room, and extend the service life of the wire rope.

[0006] The technical solutions provided by the present invention are as follows:

[0007] The present invention provides a device for preventing wire rope from being worn out at the rope outlet on the top of the machine room of a gantry crane, comprising: a support seat arranged at the rope outlet on the top of the machine room of the gantry crane; a first rotating shaft mechanism arranged on the support seat; a first rotating wheel arranged on the first rotating shaft mechanism; a first driving mechanism arranged on the first rotating wheel and connected to the first rotating shaft mechanism; a through-hole slideway arranged on the first rotating wheel; the crane wire rope extends from the rope outlet on the top of the machine room, and its protruding end passes through the through-hole slideway; a fixed base arranged on the first rotating wheel; a second rotating shaft mechanism arranged inside the fixed base; a second rotating wheel arranged on the second rotating shaft mechanism and connected to the crane wire rope; and a second driving mechanism arranged on the second rotating wheel for adjusting the position of the crane wire rope in the through-hole slideway.

[0008] Furthermore, in a preferred embodiment of the present invention, a first mounting through hole is provided on the first rotating wheel; the first rotating shaft mechanism passes through the first mounting through hole, and the first rotating wheel is sleeved on the first rotating shaft mechanism;

[0009] A second mounting through hole is provided on the second rotating wheel; the second rotating shaft mechanism passes through the second mounting through hole, and the second rotating wheel is sleeved on the second rotating shaft mechanism.

[0010] Furthermore, in a preferred embodiment of the present invention, the first rotation axis mechanism and the second rotation axis mechanism have the same structure; wherein the first rotation axis mechanism includes:

[0011] Rotating shaft body;

[0012] A rotating bearing sleeved on the rotating shaft body and connected to the rotating shaft body and the support seat;

[0013] a sleeve assembly sleeved on the rotating shaft body;

[0014] A sealing cover is provided at the end of the rotating shaft body and connected to the first rotating wheel.

[0015] Furthermore, in a preferred embodiment of the present invention, the first driving mechanism or the second driving mechanism includes:

[0016] Servo motor;

[0017] A transmission mechanism provided on the rotating shaft of the servo motor;

[0018] One end of the transmission mechanism is connected to the servo motor shaft, and the other end is connected to the shaft body, for providing rotational power to the shaft body;

[0019] The transmission mechanism is specifically a worm gear assembly or an interlaced helical gear assembly.

[0020] Furthermore, in a preferred embodiment of the present invention, the second rotating wheel includes:

[0021] Roulette body;

[0022] A first opening groove is provided on the edge of the wheel body;

[0023] a first semicircular sleeve disposed in the first opening groove;

[0024] An arc-shaped plate mechanism provided on the first opening groove;

[0025] A second opening groove provided on the arc-shaped plate mechanism;

[0026] a second semicircular sleeve disposed in the second opening groove;

[0027] The first semicircular sleeve and the second semicircular sleeve are connected and combined to form a third mounting through hole.

[0028] Furthermore, in a preferred embodiment of the present invention, the device for preventing the wear of the wire rope at the rope outlet on the top of the portal crane machine room further comprises:

[0029] A damping sleeve disposed in the third mounting through hole;

[0030] The crane wire rope passing through the through-hole slide passes through the damping sleeve and extends out from the third installation through-hole;

[0031] A socket provided on the side wall of the nylon sleeve;

[0032] a wear detection mechanism provided on the damping sleeve;

[0033] The wear detection mechanism is specifically a probe detection mechanism or a visual detection mechanism.

[0034] Furthermore, in a preferred embodiment of the present invention, the probe detection mechanism includes:

[0035] a wire probe set embedded in the jack;

[0036] a status display connected to the wire probe set;

[0037] a probe status alarm connected to the status display;

[0038] The wire probe assembly is provided with a plurality of pieces, which are evenly spaced and arranged on the circumferential side wall of the nylon sleeve;

[0039] The wire probe set includes a first probe, a second probe, and a third probe, and the probe lengths of the first probe, the second probe, and the third probe decrease in sequence.

[0040] Furthermore, in a preferred embodiment of the present invention, the visual detection mechanism includes:

[0041] A collection terminal provided on the second rotating wheel for obtaining image information of the nylon sleeve;

[0042] a time relay connected to the acquisition terminal;

[0043] an image comparison module connected to the acquisition terminal;

[0044] The image comparison module is provided with an image comparison model for comparing the collected nylon sleeve image with the intact nylon sleeve image and outputting a nylon sleeve status indication signal;

[0045] An image status alarm connected to the image comparison module.

[0046] Furthermore, in a preferred embodiment of the present invention, the device for preventing the wear of the wire rope at the rope outlet on the top of the portal crane machine room further comprises:

[0047] An absolute encoder installed at the tail of the cable drum of a portal crane;

[0048] A controller connected to the absolute encoder signal;

[0049] The controller is signal-connected to the first drive mechanism and the second drive mechanism.

[0050] The present invention provides another technical solution as follows:

[0051] The present invention also provides a control system for preventing steel wire rope wear at a rope outlet at the top of a portal crane machine room, which is characterized by comprising: a device for preventing steel wire rope wear at a rope outlet at the top of a portal crane machine room;

[0052] and a data acquisition module for obtaining information on the number of forward and reverse rotations of the crane cable drum;

[0053] Angle analysis module, used to calculate the angle between the wire rope and the rope outlet based on the number of turns;

[0054] An information communication module, used to establish a communication connection between the control system and the first drive mechanism and the second drive mechanism;

[0055] The instruction execution module is used to generate a control instruction according to the angle between the wire rope and the rope outlet, and send the control instruction through the information communication module.

[0056] The present invention provides a device and control system for preventing wire rope wear at the rope outlet on the top of the machine room of a gantry crane. The device for preventing wire rope wear includes: a support seat arranged at the rope outlet on the top of the machine room of the gantry crane; a first rotating shaft mechanism arranged on the support seat; a first rotating wheel arranged on the first rotating shaft mechanism; a first driving mechanism arranged on the first rotating wheel and connected to the first rotating shaft mechanism; a through-hole slideway arranged on the first rotating wheel; the crane wire rope extends from the rope outlet on the top of the machine room, and its extended end passes through the through-hole slideway; a fixed base arranged on the first rotating wheel; a second rotating shaft mechanism arranged inside the fixed base; a second rotating wheel arranged on the second rotating shaft mechanism and connected to the crane wire rope; a second driving mechanism arranged on the second rotating wheel for adjusting the position of the crane wire rope in the through-hole slideway. The device for preventing the wear of the wire rope at the rope outlet on the top of the machine room of the gantry crane has a main structure composed of the support seat, the first rotating shaft mechanism, the first rotating wheel, the first driving mechanism and the fixed base, the second rotating shaft mechanism, the second rotating wheel and the second driving mechanism; wherein, the support seat is used to install and support the entire device, which is arranged on the top of the machine room, the first rotating shaft mechanism is vertically arranged in the support seat, the first rotating wheel is sleeved on the first rotating shaft mechanism, and under the action of the first driving mechanism, the first rotating shaft mechanism drives the first rotating wheel to rotate around the fixed axis; similarly, the second rotating shaft mechanism is connected to the second rotating wheel, and when the second driving mechanism is Under the action of the first rotating shaft mechanism, the second rotating wheel can be driven to rotate along a fixed axis; and as for the crane wire rope, it extends from the cable drum, passes through the rope outlet on the top of the machine room, and then passes through the through-hole slideway on the first rotating wheel, and then connects with the second rotating wheel, and continues to extend outward to connect with the sling; when the portal crane performs a lifting operation, when the angle of the wire rope at the rope outlet on the top of the machine room changes, the first rotating wheel and the second rotating wheel, respectively, under the action of the first rotating shaft mechanism and the second rotating shaft mechanism, rotate alone or relatively together, drive the wire rope to swing, change the position of the wire rope in the through-hole slideway, and thus adapt to the angle change of the wire rope. It can be seen that the technical solution involved in the present invention, compared with the existing technology, can adapt to the angle change of the wire rope during the lifting operation, prevent excessive wear of the wire rope at the rope outlet on the top of the machine room of the portal crane, and extend the service life of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0058] Figure 1 A schematic structural diagram of a device for preventing steel wire rope wear at a rope outlet at the top of a portal crane machine room provided by an embodiment of the present invention;

[0059] Figure 2 A top view of the device for preventing wire rope wear at the rope outlet at the top of the portal crane machine room provided by an embodiment of the present invention;

[0060] Figure 3 A schematic structural diagram of the first rotating wheel provided in an embodiment of the present invention;

[0061] Figure 4 A schematic structural diagram of the second rotating wheel provided in an embodiment of the present invention;

[0062] Figure 5 A schematic structural diagram of the first rotating shaft mechanism provided in an embodiment of the present invention;

[0063] Figure 6 A schematic structural diagram of the transmission mechanism provided in an embodiment of the present invention;

[0064] Figure 7 A schematic structural diagram of the second rotating wheel provided in an embodiment of the present invention;

[0065] Figure 8 A schematic diagram of the exploded structure of the second rotating wheel provided in an embodiment of the present invention;

[0066] Figure 9 A schematic structural diagram of the arc-shaped plate mechanism provided in an embodiment of the present invention;

[0067] Figure 10 A cross-sectional view of the arc-shaped plate mechanism provided in an embodiment of the present invention;

[0068] Figure 11 A schematic diagram of the three-dimensional structure of the nylon sleeve provided in an embodiment of the present invention;

[0069] Figure 12 A cross-sectional view of the nylon sleeve provided in an embodiment of the present invention;

[0070] Figure 13 A schematic structural block diagram of the probe detection mechanism provided in an embodiment of the present invention;

[0071] Figure 14 A schematic block diagram of the structure of the visual detection mechanism provided in an embodiment of the present invention;

[0072] Figure 15 A schematic diagram of the installation of the absolute encoder provided in an embodiment of the present invention;

[0073] Figure 16A schematic block diagram of the structure of a control system for preventing wire rope wear at the rope outlet at the top of the portal crane machine room provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0074] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0075] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0076] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0078] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0079] like Figures 1 to 16As shown, an embodiment of the present invention provides a device and control system for preventing wire rope wear at the rope outlet on the top of the gantry crane machine room. The device for preventing wire rope wear includes: a support seat 2, a first rotating shaft mechanism 3, a first rotating wheel 4, a first driving mechanism 5, a through-hole slide 6; a fixed base 7, a second rotating shaft mechanism 8, a second rotating wheel 9 and a second driving mechanism 10.

[0080] The present invention provides a device for preventing wire rope wear from being disposed at a rope outlet on the top of a portal crane machine room, specifically comprising: a support base 2 arranged at a rope outlet 1 on the top of a portal crane machine room; a first rotating shaft mechanism 3 arranged on the support base 2; a first rotating wheel 4 arranged on the first rotating shaft mechanism 3; a first driving mechanism 5 arranged on the first rotating wheel 4 and connected to the first rotating shaft mechanism 3; a through-hole slideway 6 arranged on the first rotating wheel 4; a crane wire rope 11 extending from the rope outlet 1 on the top of the machine room, and the extending end thereof passing through the through-hole slideway 6; a fixed base 7 arranged on the first rotating wheel 4; a second rotating shaft mechanism 8 arranged in the fixed base 7; a second rotating wheel 9 arranged on the second rotating shaft mechanism 8 and connected to the crane wire rope 11; and a second driving mechanism 10 arranged on the second rotating wheel 9 and used for adjusting the position of the crane wire rope 11 in the through-hole slideway 6. The technical solution involved in the present invention can adapt to the angle change of the wire rope 11 during the lifting operation, prevent excessive wear of the wire rope at the rope outlet at the top of the portal crane room, and extend the service life of the wire rope.

[0081] The technical solution of the present invention is described in detail below with reference to specific embodiments:

[0082] Specifically, in a specific embodiment of the present invention, a first mounting through hole 13 is provided on the first rotating wheel 4; the first rotating axis mechanism 3 passes through the first mounting through hole 13, and the first rotating wheel 4 is sleeved on the first rotating axis mechanism 3; the second rotating wheel 9 is provided on the second mounting through hole 14; the second rotating axis mechanism 8 passes through the second mounting through hole 14, and the second rotating wheel 9 is sleeved on the second rotating axis mechanism 8.

[0083] Among them, Figure 3 、 Figure 4 As shown, in an embodiment of the present invention, the first rotating wheel 4 and the first rotating axis mechanism 3, and the second rotating wheel 9 and the second rotating axis mechanism 8 are connected by means of axis hole docking; the first mounting through hole 13 and the second mounting through hole 14 are respectively provided in the center of the first rotating wheel 4 and the second rotating wheel 9, the first rotating axis mechanism 3 passes through the first mounting through hole 13 to install the first rotating wheel 4 on the first rotating axis mechanism 3, and the second rotating axis mechanism 8 passes through the second mounting through hole 14 to install the second rotating wheel 9 on the second rotating axis mechanism 8.

[0084] Specifically, in a specific embodiment of the present invention, the first rotating shaft mechanism 3 and the second rotating shaft mechanism 8 have the same structure.

[0085] Specifically, in a specific embodiment of the present invention, the first rotating shaft mechanism 3 or the second rotating shaft mechanism 8 includes: a rotating shaft body 16; a rotating bearing 17 sleeved on the rotating shaft body 16; the rotating bearing 17 is arranged between the rotating shaft body 16 and the support seat 2, or arranged between the rotating shaft body 16 and the fixed base; a sleeve assembly 18 sleeved on the rotating shaft body 16; and a cover 19 arranged at the end of the rotating shaft body 16 and connected to the first rotating wheel 4 or the second rotating wheel 9.

[0086] Among them, Figure 5 As shown, in the embodiment of the present invention, the first rotating shaft mechanism 3 is used to drive the first rotating wheel 4 to rotate on a fixed axis, and the second rotating shaft mechanism 8 is used to drive the second rotating wheel 9 to rotate on a fixed axis; the first rotating shaft mechanism 3 and the second rotating shaft mechanism 8 have the same structure, and the main structures of the two include the rotating shaft body 16, the rotating bearing 17, the sleeve assembly 18 and the cover 19; the rotating shaft body 16 serves as a transmission member to connect the first rotating wheel 4 or the second rotating wheel 9; the rotating bearing 17 is sleeved on the rotating shaft body 16, and the rotating shaft body 16 passes through the rotating shaft body 16. The inner hole of the rotating bearing 17, and the outer ring side wall of the rotating bearing 17 abuts against the support seat 2 or the fixed base 7, so that the first rotating wheel 4 and the second rotating wheel 9 can rotate flexibly; and as for the sleeve assembly 18, it is sleeved on the rotating shaft body 16, and is arranged above the support seat 2 or the fixed base 7, which can fix the installation position of the first and second rotating wheels 9 on the rotating shaft body 16 and slow down the corrosion progress of the shaft surface; the sealing cover 19 is located at the end of the rotating shaft body 16 and is used to seal the rotating shaft body 16.

[0087] Specifically, in a specific embodiment of the present invention, the first drive mechanism 5 or the second drive mechanism 10 includes: a servo motor 20; a transmission mechanism 21 arranged on the rotating shaft of the servo motor 20; one end of the transmission mechanism 21 is connected to the rotating shaft of the servo motor 20, and the other end is connected to the rotating shaft body 16, for providing rotational power for the rotating shaft body 16.

[0088] Specifically, in a specific embodiment of the present invention, the transmission mechanism 21 is specifically a worm gear assembly or a staggered helical gear assembly.

[0089] Among them, Figure 5 、 Figure 6As shown, in an embodiment of the present invention, the first drive mechanism 5 and the second drive mechanism 10 are used to provide rotational power to drive the rotating shaft body 16 to rotate on a fixed axis; the first drive mechanism 5 and the second drive mechanism 10 have the same structure, and the main structure includes the servo motor 20 and the transmission mechanism 21; the servo motor 20 serves as a power source, and the transmission mechanism 21 serves as a transmission component, which is used to slow down and transmit the rotational power provided by the servo motor 20 to the first rotating shaft mechanism 3 and the second rotating shaft mechanism 8; since in an embodiment of the present invention, the output shaft of the servo motor 20 and the rotating shaft body 16 are staggered axes, in order to achieve the staggered axis power deceleration transmission effect, the transmission mechanism 21 is set as the worm gear assembly or the staggered bevel gear assembly.

[0090] Specifically, in a specific embodiment of the present invention, the second rotating wheel 9 includes: a wheel disc body 22; a first opening groove 23 arranged on the edge of the wheel disc body 22; a first semicircular sleeve 24 arranged in the first opening groove 23; an arc-shaped plate mechanism 25 arranged on the first opening groove 23; a second opening groove 26 arranged on the arc-shaped plate mechanism 25; a second semicircular sleeve 27 arranged in the second opening groove 26; the first semicircular sleeve 24 and the second semicircular sleeve 27 are docked and combined to form a third mounting through hole 28.

[0091] Among them, Figure 7 、 Figure 8 As shown, in an embodiment of the present invention, the second rotating wheel 9 is mainly composed of two parts, the wheel disc body 22 and the arc plate mechanism 25; the first opening groove 23 and the second opening groove 26 are respectively provided on the wheel disc body 22 and the arc plate mechanism 25. When the arc plate mechanism 25 is connected to the wheel disc body 22, the second opening groove 26 is provided in the first opening groove 23, so that the first semicircular sleeve 24 and the second semicircular sleeve 27 located in the groove are connected to form the third mounting through hole 28. After the crane wire rope 11 passes through the through hole slide 6 on the first rotating wheel 4, it extends outward through the third mounting through hole 28.

[0092] Specifically, in a specific embodiment of the present invention, the arc plate mechanism 25 includes: a first connecting plate 29 arranged on the upper surface of the wheel disc body 22; a second connecting plate 30 arranged perpendicularly on the first connecting plate 29; the second connecting plate 30 abuts against the side wall of the wheel disc body 22; a connecting hole 31 is provided on the second connecting plate 30 and the side wall of the wheel disc body 22; and a fastener is arranged in the connecting hole 31 for fixing the position of the arc plate mechanism 25.

[0093] Among them, Figure 9 、 Figure 10As shown, in an embodiment of the present invention, the arc plate mechanism 25 is connected to the wheel disc body 22 by threaded fasteners; the arc plate mechanism 25 is a plate member, which is composed of the first connecting plate 29 and the second connecting plate 30. The second connecting plate 30 is tightly attached to the side wall of the wheel disc body 22 when connected, and the entire arc plate mechanism 25 is fixed to the wheel disc body 22 by using the connecting holes 31 on the side wall and the threaded fasteners.

[0094] Specifically, in a specific embodiment of the present invention, the device for preventing wire rope wear at the rope outlet on the top of the gantry crane machine room also includes: a damping sleeve arranged in the third mounting through hole 28; the crane wire rope 11 passing through the through hole slide 6 passes through the damping sleeve and extends out from the third mounting through hole 28; a socket 32 ​​arranged on the side wall of the nylon sleeve 15; a wear detection mechanism arranged on the damping sleeve; the wear detection mechanism is specifically a probe detection mechanism or a visual detection mechanism.

[0095] Among them, Figure 11 As shown, the nylon sleeve 15 is arranged in the third mounting through hole 28 and is engaged with the third mounting through hole 28; the crane wire rope 11 extends from the rope outlet 1 on the top of the machine room, and after its protruding end passes through the through hole slide 6, the crane wire rope 11 will pass through the nylon sleeve 15 and extend from the third mounting through hole 28, and then be connected to the sling. The provision of the nylon sleeve 15 can reduce the direct friction between the wire rope and the rope outlet 1 on the top of the machine room, thereby extending the service life of the wire rope; at the same time, the wear detection mechanism is provided to monitor the wear of the nylon sleeve 15, so that relevant staff can replace the nylon sleeve 15 in time according to the degree of wear of the nylon sleeve 15.

[0096] Specifically, in the specific embodiment of the present invention, the nylon sleeve 15 is a split structure.

[0097] Specifically, in a specific embodiment of the present invention, the probe detection mechanism includes: a wire probe group 33 embedded in the jack 32; a status display 34 connected to the wire probe group 33; a probe status alarm 35 connected to the status display 34; the wire probe group 33 is provided with multiple pieces, which are evenly spaced on the circumferential side wall of the nylon sleeve 15; the wire probe group 33 includes a first probe, a second probe and a third probe, and the probe lengths of the first probe, the second probe and the third probe decrease successively.

[0098] Among them, Figure 12 、 Figure 13As shown, in an embodiment of the present invention, the probe detection mechanism includes the wire probe group 33, a status display 34 and a status alarm device; the wire probe group 33 is provided with the first probe, the second probe and the third probe of different lengths, and inserted into the nylon sleeve 15; during the lifting process of the wire rope 11, the nylon sleeve 15 is worn. When the degree of wear does not contact the detection length of the first probe, the first probe operates normally, and the status display 34 shows that the circuit formed by the first probe is normally connected. When the degree of wear of the nylon sleeve 15 exceeds the detection length of the first probe, the third probe is worn. If one probe is damaged, the status display 34 will show that the circuit is disconnected. The same is true for the second probe. When the damage degree of the nylon sleeve 15 does not reach the detection length of the second probe, the second probe circuit is connected, otherwise the circuit is disconnected. The wear length detected by the third probe is the limit of wear of the nylon sleeve 15. When the damage degree of the nylon sleeve 15 does not reach the detection length of the third probe, the third probe circuit is connected, otherwise the circuit is disconnected, and the status alarm device works and sends out an alarm signal to remind the operator to replace or repair the nylon sleeve 15 in time to prevent excessive wear or damage to the wire rope.

[0099] Specifically, in a specific embodiment of the present invention, the visual detection mechanism includes: an acquisition terminal 37 provided on the second rotating wheel 9 for obtaining image information of the nylon sleeve 15; a time relay 36 connected to the acquisition terminal 37; an image comparison module 38 connected to the acquisition terminal 37; an image comparison model is provided in the image comparison module 38 for comparing and judging the acquired image of the nylon sleeve 15 with the image of the intact nylon sleeve 15, and outputting a nylon sleeve 15 status indication signal; and an image status alarm 39 connected to the graphic comparison module.

[0100] Among them, Figure 14 As shown, the wear detection mechanism may also adopt the visual detection mechanism to complete the wear detection operation of the nylon sleeve 15; the visual detection mechanism includes the acquisition terminal 37, the time relay 36, the image comparison module 38 and the image status alarm 39; in the embodiment of the present invention, the acquisition terminal 37 adopts a shooting device such as a miniature camera, which is arranged on the second rotating wheel 9 to collect the image information of the nylon sleeve 15; secondly, the time relay 36 is set, and the image of the nylon sleeve 15 is periodically collected by the time relay 36, and then the acquired image data is transmitted to the image comparison module 38, and the image comparison model in the module is used to obtain the wear degree of the nylon sleeve 15 at the time of collection, and finally, the image status alarm 39 is used to notify the relevant staff to perform replacement operation when the nylon sleeve 15 reaches the wear threshold.

[0101] Specifically, in a specific embodiment of the present invention, the device for preventing wire rope wear at the rope outlet on the top of the portal crane machine room also includes: an absolute value encoder 40 arranged at the tail of the portal crane cable reel 12; a controller connected to the signal of the absolute value encoder 40; and the controller is connected to the signal of the first drive mechanism 5 and the second drive mechanism 10.

[0102] Among them, Figure 15 As shown, in an embodiment of the present invention, during the lifting operation of the gantry crane, the lifting motor controls the movement of the cable reel 12, and the wire rope 11 is wound around the cable reel 12. The absolute encoder 40 is installed at the tail of the cable reel 12. The absolute encoder 40 can collect the number of turns of the reel in real time and convert it into a digital signal and transmit it to the controller; the controller controls the movement of the first drive mechanism 5 and the second drive mechanism 10 according to the digital signal, and adjusts the position of the wire rope 11. In this way, the angle change of the wire rope 11 is monitored and controlled, further reducing friction and wear.

[0103] Specifically, in a specific embodiment of the present invention, the first rotating wheel 4 and the second rotating wheel 9 are made of elastic material.

[0104] In this embodiment, the first rotating wheel 4 and the second rotating wheel 9 made of elastic material have certain bending and torsional properties, and can better adapt to the angle change of the steel wire rope 11.

[0105] The present invention provides another technical solution as follows:

[0106] The present invention also provides a control system for preventing wire rope wear at the rope outlet on the top of the portal crane machine room, comprising: a device for preventing wire rope wear at the rope outlet on the top of the portal crane machine room 1; and a data acquisition module 41 for obtaining information on the number of turns of the crane cable drum 12 in forward and reverse rotation; an angle analysis module 42 for calculating the angle between the wire rope 11 and the rope outlet based on the number of turns information; an information communication module 43 for establishing a communication connection between the control system and the first drive mechanism 5 and the second drive mechanism 10; and an instruction execution module 44 for generating a control instruction based on the angle between the wire rope 11 and the rope outlet, and issuing the control instruction through the information communication module 43.

[0107] As described above, the embodiment of the present invention involves a device and control system for preventing wire rope wear at the rope outlet on the top of a gantry crane, which can solve the problem of damage caused by excessive friction between the crane wire rope 11 and the rope outlet 1 on the top of the machine room. It achieves more comprehensive protection and adjustment functions by dynamically adjusting the position of the wire rope cable drum 12 and the rope outlet position, and combining it with the solution of setting the nylon sleeve 15 and the wear detection mechanism at the rope outlet. For the device for preventing wire rope wear from the rope outlet at the top of the machine room of the gantry crane, its main structure is composed of the support seat 2, the first rotating shaft mechanism 3, the first rotating wheel 4, the first driving mechanism 5 and the fixed base 7, the second rotating shaft mechanism 8, the second rotating wheel 9, and the second driving mechanism 10; wherein, the support seat 2 is used to install and support the entire device, which is arranged at the rope outlet 1 at the top of the machine room, the first rotating shaft mechanism 3 is vertically arranged in the support seat 2, the first rotating wheel 4 is sleeved on the first rotating shaft mechanism 3, and under the action of the first driving mechanism 5, the first rotating shaft mechanism 3 drives the first rotating wheel 4 to rotate on a fixed axis; similarly, the second rotating shaft mechanism 8 is connected to the second rotating wheel 9, and under the action of the second driving mechanism 10, the second rotating shaft mechanism 8 can drive the second rotating wheel 9 to rotate on a fixed axis, and the rotating bearing 17 is provided in the first rotating shaft mechanism 3 and the second rotating shaft mechanism 8. The use of the rotating bearing 17 reduces the friction between the rotating shaft body 16 and the support seat 2 and the fixed base 7, thereby improving the rotation Flexibility; as for the crane wire rope 11, it extends from the cable drum 12, passes through the rope outlet 1 on the top of the machine room, and then passes through the through-hole slideway 6 on the first rotating wheel 4, and then connects to the second rotating wheel 9, and continues to extend outward to connect the sling; when the portal crane performs a lifting operation, when the angle of the wire rope 11 at the rope outlet 1 on the top of the machine room changes, the first rotating wheel 4 and the second rotating wheel 9, respectively, under the action of the first rotating shaft mechanism 3 and the second rotating shaft mechanism 8, combined with the angle change of the wire rope 11 monitored by the servo motor 20 and the absolute encoder 40, perform a single rotation or a common relative rotation, drive the wire rope 11 to swing, change the position of the wire rope 11 in the through-hole slideway 6, so as to adapt to the angle change of the wire rope 11; and the nylon sleeve 15 is provided to further reduce the friction between the wire rope 11 and the rope outlet 1 on the top of the machine room, and the wear detection mechanism can timely detect and warn the wear of the nylon sleeve 15, and replace the nylon sleeve 15 in time to ensure that the wire rope 11 can be used normally. It can be seen that compared with the existing technology, the technical solution involved in the present invention can adapt to the angle changes of the wire rope during the lifting operation, prevent excessive wear of the wire rope at the rope outlet at the top of the gantry crane room, and extend the service life of the wire rope.

[0108] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for preventing wire rope wear at the top rope outlet of a portal crane machine room, characterized in that: include: The support base is set at the rope outlet on the top of the portal crane room; A first rotating shaft mechanism provided on the support base; a first rotating wheel provided on the first rotating shaft mechanism; a first driving mechanism disposed on the first rotating wheel and connected to the first rotating shaft mechanism; a through-hole slideway provided on the first rotating wheel; The crane wire rope extends from the rope outlet on the top of the machine room and the extended end thereof passes through the through-hole slideway; a fixed base provided on the first rotating wheel; A second rotating shaft mechanism disposed inside the fixed base; a second rotating wheel provided on the second rotating shaft mechanism and connected to the crane wire rope; A second driving mechanism is provided on the second rotating wheel and is used to adjust the position of the crane wire rope in the through-hole slideway; a first mounting through-hole is provided on the first rotating wheel; The first rotating shaft mechanism passes through the first mounting through hole, and the first rotating wheel is sleeved on the first rotating shaft mechanism; a second mounting through hole provided on the second rotating wheel; The second rotating shaft mechanism passes through the second mounting through hole, and the second rotating wheel is sleeved on the second rotating shaft mechanism; The first rotating shaft mechanism and the second rotating shaft mechanism have the same structure; The first rotating shaft mechanism includes: Rotating shaft body; A rotating bearing sleeved on the rotating shaft body and connected to the rotating shaft body and the support seat; a sleeve assembly sleeved on the rotating shaft body; A sealing cover is provided at the end of the rotating shaft body and connected to the first rotating wheel.

2. The device for preventing wire rope wear at the rope outlet at the top of the portal crane machine room according to claim 1 is characterized in that: The first driving mechanism or the second driving mechanism includes: Servo motor; A transmission mechanism provided on the rotating shaft of the servo motor; One end of the transmission mechanism is connected to the servo motor shaft, and the other end is connected to the shaft body, for providing rotational power to the shaft body; The transmission mechanism is specifically a worm gear assembly or a staggered helical gear assembly.

3. The device for preventing wire rope wear at the rope outlet on the top of the portal crane machine room according to claim 1 is characterized in that: The second rotating wheel comprises: Roulette body; A first opening groove is provided on the edge of the wheel body; a first semicircular sleeve disposed in the first opening groove; An arc-shaped plate mechanism provided on the first opening groove; A second opening groove provided on the arc-shaped plate mechanism; a second semicircular sleeve disposed in the second opening groove; The first semicircular sleeve and the second semicircular sleeve are connected and combined to form a third mounting through hole.

4. The device for preventing wire rope wear at the rope outlet on the top of the portal crane machine room according to claim 3 is characterized in that: The device for preventing the steel wire rope from being worn out at the rope outlet on the top of the portal crane machine room also includes: A nylon sleeve disposed in the third mounting through hole; The crane wire rope passing through the through hole slide passes through the nylon sleeve and extends out of the third installation through hole; A socket provided on the side wall of the nylon sleeve; A wear detection mechanism provided on the nylon sleeve; The wear detection mechanism is specifically a probe detection mechanism or a visual detection mechanism.

5. The device for preventing steel wire rope wear at the rope outlet at the top of the portal crane machine room according to claim 4 is characterized in that: The probe detection mechanism includes: a wire probe set embedded in the jack; a status display connected to the wire probe set; a probe status alarm connected to the status display; The wire probe assembly is provided with a plurality of pieces, which are evenly spaced and arranged on the circumferential side wall of the nylon sleeve; The wire probe set includes a first probe, a second probe, and a third probe, and the probe lengths of the first probe, the second probe, and the third probe decrease in sequence.

6. The device for preventing steel wire rope wear at the rope outlet at the top of the portal crane machine room according to claim 5, characterized in that: The visual detection mechanism includes: A collection terminal provided on the second rotating wheel for obtaining image information of the nylon sleeve; a time relay connected to the acquisition terminal; an image comparison module connected to the acquisition terminal; The image comparison module is provided with an image comparison model for comparing the collected image of the nylon sleeve with the image of the intact nylon sleeve and outputting a nylon sleeve status indication signal; An image status alarm connected to the image comparison module.

7. The device for preventing steel wire rope wear at the rope outlet at the top of the portal crane machine room according to any one of claims 1 to 6, characterized in that: Also includes: An absolute encoder installed at the tail of the cable drum of a portal crane; A controller connected to the absolute encoder signal; The controller is signal-connected to the first drive mechanism and the second drive mechanism.

8. A control system for preventing wire rope wear at the top rope outlet of a portal crane machine room, characterized in that: include: The device for preventing wire rope wear at the rope outlet at the top of the portal crane machine room according to any one of claims 1 to 7; and a data acquisition module for obtaining information on the number of forward and reverse rotations of the crane cable drum; Angle analysis module, used to calculate the angle between the wire rope and the rope outlet based on the number of turns; An information communication module, used to establish a communication connection between the control system and the first drive mechanism and the second drive mechanism; The instruction execution module is used to generate a control instruction according to the angle between the wire rope and the rope outlet, and send the control instruction through the information communication module.

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