Device for preventing steel wire rope from being abraded at top rope outlet of gantry crane machine room

Abstract

The utility model discloses a device for preventing a steel wire rope from being abraded at a top rope outlet of a gantry crane. The device comprises a supporting seat arranged at the top rope outlet of the gantry crane, the first rotating shaft mechanism is arranged in the supporting seat; the first rotating wheel is arranged on the first rotating shaft mechanism; the first driving mechanism is connected with the first rotating shaft mechanism; the through hole slideway is arranged on the first rotating wheel; the extension end of the crane steel wire rope extending out of the machine room top rope outlet penetrates through the through hole slideway; the fixed base is arranged on the first rotating wheel; the second rotating shaft mechanism is arranged in the fixed base; the second rotating wheel is arranged on the second rotating shaft mechanism and is connected with a crane steel wire rope; the second driving mechanism is arranged on the second rotating wheel and used for adjusting the position of the crane steel wire rope. According to the technical scheme disclosed by the utility model, the angle change of the steel wire rope can be adapted in the lifting operation process, and the steel wire rope at the rope outlet of the roof of the crane is prevented from being excessively worn.

Description

Technical Field

[0001] The utility model relates to the technical field of portal cranes, and in particular to a device and a control system for preventing a steel wire rope from being worn out at a rope outlet at the top of a portal crane machine room. Background Art

[0002] A gantry crane is a heavy equipment, commonly used to carry and move heavy objects in ports, docks and other industrial environments. It converts the power of the motor into the movement of the boom and hook through a series of mechanical transmission and control systems, thereby achieving the lifting, movement and positioning of heavy objects. During the lifting transmission process, the motor drives the drum to rotate, and the wire rope on the drum is connected to the hook through a pulley block. When the drum rotates, the wire rope is rolled up or released, thereby achieving the rising or falling movement of the hook.

[0003] At present, during the operation of the portal crane, the wire rope is prone to friction with the top of the machine room at the rope outlet, causing the wire rope to wear and shorten its service life. At the same time, the wire rope is wound on the drum. When lifting up and down, the wire rope on the drum shrinks or stretches, causing the angle of the wire rope at the rope outlet on the top of the machine room to change, which further increases the friction between the wire rope and the top of the machine room, which can seriously affect the normal lifting operation of the crane.

[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 change 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. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a device and control system for preventing wire rope wear at the rope outlet at the top of the machine room of a gantry crane. The device and control system 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 at the top of the machine room of the gantry crane, and extend the service life of the wire rope.

[0006] The technical solution provided by the utility model is as follows:

[0007] The utility model provides a device for preventing abrasion of a steel wire rope at a rope outlet at the top of a machine room of a gantry crane, comprising: a support seat arranged at the rope outlet at the top of a 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; a crane steel wire rope extends out of the rope outlet at the top of the machine room, and the extended end thereof 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 steel wire rope; and a second driving mechanism arranged on the second rotating wheel and used for adjusting the position of the crane steel 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] Further, in a preferred embodiment of the present invention, the first rotating shaft mechanism and the second rotating shaft mechanism have the same structure; wherein the first rotating shaft mechanism comprises:

[0011] A shaft body;

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

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

[0014] A sealing cover is arranged 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 comprises:

[0016] Servo motor;

[0017] A transmission mechanism disposed 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, so as to provide rotational power for the shaft body;

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

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

[0021] Roulette body;

[0022] A first opening groove disposed on the edge of the wheel disc body;

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

[0024] An arc-shaped plate mechanism disposed 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 installation through hole.

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

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

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

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

[0032] A wear detection mechanism provided on the nylon 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 comprises:

[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 set 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 comprises:

[0041] A collection terminal provided on the second rotating wheel and used 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, which is used to compare and judge the collected nylon sleeve image with the intact nylon sleeve image, and output a nylon sleeve state indication signal;

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

[0046] Furthermore, in a preferred embodiment of the utility model, the device for preventing the wear of the wire rope at the top rope outlet 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 utility model provides another technical solution as follows:

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

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

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

[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 steel wire rope and the rope outlet, and send the control instruction through the information communication module.

[0056] The utility model provides a device and control system for preventing wire rope wear at a rope outlet at the top of a gantry crane machine room, wherein the device for preventing wire rope wear comprises: a support seat arranged at the rope outlet at the top of a gantry crane machine room; 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; a crane wire rope extends out from the rope outlet at 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; and a second driving mechanism arranged on the second rotating wheel and used for adjusting the position of the crane wire rope in the through-hole slideway. For 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, its main structure is 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 under the action of the second driving mechanism Under the use, the second rotating shaft mechanism can drive the second rotating wheel to rotate on a fixed axis; and 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 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, so as to adapt to the angle change of the wire rope. It can be seen that the technical solution involved in the utility model, compared with the prior art, 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 utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0058] Figure 1 A schematic diagram of the structure of the device for preventing the wear of the steel wire rope at the top rope outlet of the portal crane room provided by the embodiment of the utility model;

[0059] Figure 2 A top view of the device for preventing the wear of the steel wire rope at the rope outlet at the top of the portal crane room provided by the embodiment of the utility model;

[0060] Figure 3 A schematic diagram of the structure of the first rotating wheel provided in an embodiment of the utility model;

[0061] Figure 4 A schematic diagram of the structure of the second rotating wheel provided in an embodiment of the utility model;

[0062] Figure 5 A schematic diagram of the structure of the first rotating shaft mechanism provided in an embodiment of the utility model;

[0063] Figure 6 A schematic diagram of the structure of the transmission mechanism provided in an embodiment of the utility model;

[0064] Figure 7 A schematic diagram of the structure of the second rotating wheel provided in an embodiment of the utility model;

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

[0066] Fig. 9 A schematic structural diagram of the arc plate mechanism provided in an embodiment of the utility model;

[0067] Fig.10 A cross-sectional view of the arc-shaped plate mechanism provided in an embodiment of the utility model;

[0068] Fig.11 A schematic diagram of the three-dimensional structure of the nylon sleeve provided in an embodiment of the utility model;

[0069] Fig.12 A cross-sectional view of the nylon sleeve provided in an embodiment of the utility model;

[0070] Fig.13A schematic structural diagram of the probe detection mechanism provided in an embodiment of the utility model;

[0071] Fig.14 A schematic structural diagram of the visual detection mechanism provided in an embodiment of the utility model;

[0072] Fig.15 A schematic diagram of the installation of the absolute value encoder provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0073] In order to enable those skilled in the art to better understand the technical solutions in the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0074] 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.

[0075] 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 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0077] It should be noted that the structures, proportions, sizes, etc. illustrated 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 utility model can be implemented, so 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 contents disclosed in the present utility model without affecting the effects and purposes that can be achieved by the present utility model.

[0078] like Figures 1 to 15 As shown, an embodiment of the utility model provides a device and control system for preventing wire rope wear at the rope outlet on the top of a 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 slideway 6; a fixed base 7, a second rotating shaft mechanism 8, a second rotating wheel 9 and a second driving mechanism 10.

[0079] The utility model provides a device for preventing abrasion of a steel wire rope at a rope outlet at the top of a machine room of a gantry crane, specifically comprising: a support seat 2 arranged at a rope outlet 1 at the top of a machine room of a gantry crane; a first rotating shaft mechanism 3 arranged on the support seat 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 steel wire rope 11 extending out from the rope outlet 1 at 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 steel wire rope 11; a second driving mechanism 10 arranged on the second rotating wheel 9 and used for adjusting the position of the crane steel wire rope 11 in the through-hole slideway 6. The technical solution involved in the utility model can adapt to the angle change of the steel wire rope 11 during the lifting operation, prevent excessive wear of the steel wire rope at the rope outlet at the top of the portal crane room, and extend the service life of the steel wire rope.

[0080] The technical solution of the utility model is described in detail below in conjunction with specific embodiments:

[0081] Specifically, in a specific embodiment of the utility model, 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.

[0082] Among them, Figure 3 , Figure 4 As shown, in an embodiment of the utility model, the first rotating wheel 4 and the first rotating shaft mechanism 3, and the second rotating wheel 9 and the second rotating shaft mechanism 8 are connected by means of abutting shaft holes; the first mounting through hole 13 and the second mounting through hole 14 are respectively provided at the center of the first rotating wheel 4 and the second rotating wheel 9, the first rotating shaft mechanism 3 passes through the first mounting through hole 13 to mount the first rotating wheel 4 on the first rotating shaft mechanism 3, and the second rotating shaft mechanism 8 passes through the second mounting through hole 14 to mount the second rotating wheel 9 on the second rotating shaft mechanism 8.

[0083] Specifically, in the specific embodiment of the present utility model, the first rotating shaft mechanism 3 and the second rotating shaft mechanism 8 have the same structure.

[0084] Specifically, in a specific embodiment of the utility model, 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 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.

[0085] Among them, Figure 5 As shown, in the embodiment of the utility model, 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 is used 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 inner hole of the rotating bearing 17 and the outer ring side wall of the rotating bearing 17 abut 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 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.

[0086] Specifically, in a specific embodiment of the utility model, the first driving mechanism 5 or the second driving 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.

[0087] Specifically, in the specific embodiment of the present utility model, the transmission mechanism 21 is specifically a worm gear assembly or a staggered helical gear assembly.

[0088] Among them, Figure 5 , Figure 6 As 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 reduce the rotational power provided by the servo motor 20 and transmit it to the first rotating shaft mechanism 3 and the second rotating shaft mechanism 8; since in the 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.

[0089] Specifically, in a specific embodiment of the utility model, 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 plate mechanism 25 arranged on the first opening groove 23; a second opening groove 26 arranged on the arc 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.

[0090] Among them, Figure 7 , Figure 8As shown, in an embodiment of the utility model, 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 arranged 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 arranged 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 installation through hole 28. After the crane wire rope 11 passes through the through hole slide 6 on the first rotating wheel 4, it passes through the third installation through hole 28 and extends outward.

[0091] Specifically, in a specific embodiment of the utility model, the arc plate mechanism 25 includes: a first connecting plate 29 arranged on the upper surface of the roulette body 22; a second connecting plate 30 vertically arranged on the first connecting plate 29; the second connecting plate 30 abuts against the side wall of the roulette body 22; a connecting hole 31 is provided on the second connecting plate 30 and the side wall of the roulette body 22; a fastener is arranged in the connecting hole 31 for fixing the position of the arc plate mechanism 25.

[0092] Among them, Fig. 9 , Fig.10 As shown, in an embodiment of the utility model, 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.

[0093] Specifically, in a specific embodiment of the utility model, the device for preventing the wear of the wire rope at the rope outlet on the top of the gantry crane machine room also includes: a nylon sleeve 15 arranged in the third installation through hole 28; the crane wire rope 11 that passes through the through hole slide 6 passes through the nylon sleeve 15 and extends out from the third installation through hole 28; a socket 32 ​​arranged on the side wall of the nylon sleeve 15; a wear detection mechanism arranged on the nylon sleeve 15; the wear detection mechanism is specifically a probe detection mechanism or a visual detection mechanism.

[0094] Among them, Fig.11As shown, the nylon sleeve 15 is arranged in the third mounting through hole 28 and is clamped with the third mounting through hole 28; the crane wire rope 11 extends out from the rope outlet 1 on the top of the machine room, and after the extended end thereof passes through the through hole slide 6, the crane wire rope 11 will pass through the nylon sleeve 15 and extend out 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 condition of the nylon sleeve 15, so that the relevant staff can replace the nylon sleeve 15 in time according to the wear degree of the nylon sleeve 15.

[0095] Specifically, in the specific embodiment of the present utility model, the nylon sleeve 15 is a split structure.

[0096] Specifically, in a specific embodiment of the utility model, 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.

[0097] Among them, Fig.12 , Fig.13 As shown, in the embodiment of the utility model, the probe detection mechanism includes the wire probe group 33, the status display 34 and the status alarm device; the first probe, the second probe and the third probe of different lengths are arranged in the wire probe group 33 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, If the first probe is damaged, the status display 34 will show that the circuit is disconnected. Similarly, 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 wear degree 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.

[0098] Specifically, in a specific embodiment of the utility model, the visual detection mechanism includes: a collection terminal 37 arranged on the second rotating wheel 9 for obtaining the image information of the nylon sleeve 15; a time relay 36 connected to the collection terminal 37; an image comparison module 38 connected to the collection terminal 37; an image comparison model is arranged in the image comparison module 38, which is used to compare and judge the collected image of the nylon sleeve 15 with the intact image of the nylon sleeve 15, and output a nylon sleeve 15 status indication signal; an image status alarm 39 connected to the image comparison module 38.

[0099] Among them, Fig.14 As shown, the wear detection mechanism can also use 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 utility model, the acquisition terminal 37 uses 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 during the collection, and finally, the image status alarm 39 is used to notify the relevant staff to replace the nylon sleeve 15 when the wear threshold is reached.

[0100] Specifically, in a specific embodiment of the utility model, the device for preventing wire rope wear at the rope outlet on the top of the gantry crane machine room also includes: an absolute value encoder 40 arranged at the tail of the cable drum 12 of the gantry crane; 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.

[0101] Among them, Fig.15 As shown, in an embodiment of the utility model, 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 to transmit 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 to further reduce friction and wear.

[0102] Specifically, in the specific embodiment of the present invention, the first rotating wheel 4 and the second rotating wheel 9 are made of elastic material.

[0103] In this embodiment, the first rotating wheel 4 and the second rotating wheel 9 made of elastic material have certain bending and torsion properties, and can better adapt to the angle change of the steel wire rope 11.

[0104] As described above, the embodiment of the utility model involves a device for preventing the wear of the wire rope at the rope outlet on the top of the machine room 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 arranging the nylon sleeve 15 and the wear detection mechanism at the rope outlet. The device for preventing the wear of the wire rope at the rope outlet at the top of the machine room of the gantry crane has a main structure 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 arranged in the first rotating shaft mechanism 3 and the second rotating shaft mechanism 8, and 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 with 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 value 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 set to further reduce the friction between the wire rope 11 and the rope outlet 1 on the top of the machine room, and for the wear detection mechanism, it 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 prior art, the technical solution involved in the utility model 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 at the top of the gantry crane room, and extend the service life of the wire rope.

[0105] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for preventing steel wire rope from being worn at the rope outlet at the top of a portal crane room, characterized in that: include: A support seat provided at the top rope outlet of the portal crane room; A first rotating shaft mechanism disposed on the support seat; A first rotating wheel disposed on the first rotating shaft mechanism; A first driving mechanism is 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 its extended end passes through the through hole slideway; A fixed base disposed on the first rotating wheel; A second rotating shaft mechanism disposed inside the fixed base; A second rotating wheel disposed on the second rotating shaft mechanism and connected to the crane wire rope; A second driving mechanism is arranged on the second rotating wheel and is used to adjust the position of the crane wire rope in the through-hole slideway.

2. The device for preventing steel wire rope from being worn out at the rope outlet at the top of the portal crane room according to claim 1 is characterized in that: The first rotating wheel is provided with a first mounting through hole; 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.

3. The device for preventing steel wire rope from being worn out at the rope outlet at the top of the portal crane room according to claim 1, characterized in that: The first rotating shaft mechanism and the second rotating shaft mechanism have the same structure; The first rotating shaft mechanism comprises: A shaft body; A rotating bearing sleeved on the rotating shaft body and connected to the rotating shaft body and the supporting seat; A sleeve assembly sleeved on the rotating shaft body; A sealing cover is arranged at the end of the rotating shaft body and connected to the first rotating wheel.

4. The device for preventing steel wire rope from being worn out at the rope outlet at the top of the portal crane room according to claim 3 is characterized in that: The first driving mechanism or the second driving mechanism comprises: Servo motor; A transmission mechanism disposed 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, so as to provide rotational power for the shaft body; The transmission mechanism is specifically a worm gear assembly or a staggered helical gear assembly.

5. The device for preventing steel wire rope from being worn out at the rope outlet at the top of the portal crane room according to claim 2, characterized in that: The second rotating wheel comprises: Roulette body; A first opening groove disposed on the edge of the wheel disc body; a first semicircular sleeve disposed in the first opening groove; An arc-shaped plate mechanism disposed 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 installation through hole.

6. The device for preventing steel wire rope from being worn out at the rope outlet at the top of the portal crane room according to claim 5, characterized in that: The device for preventing the steel wire rope from being worn out at the rope outlet at 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 from the third installation through hole; A socket disposed 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.

7. The device for preventing steel wire rope from being worn out at the rope outlet at the top of the portal crane room according to claim 6, characterized in that: The probe detection mechanism comprises: 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 set 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.

8. The device for preventing steel wire rope from being worn out at the rope outlet at the top of the portal crane room according to claim 7, characterized in that: The visual detection mechanism comprises: A collection terminal provided on the second rotating wheel and used 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, which is used to compare and judge the collected nylon sleeve image with the intact nylon sleeve image, and output a nylon sleeve state indication signal.

9. The device for preventing steel wire rope from being worn out at the rope outlet at the top of the portal crane room according to claim 8, characterized in that: The visual detection mechanism also includes: An image status alarm connected to the image comparison module.

10. The device for preventing steel wire rope from being worn at the rope outlet at the top of the portal crane room according to any one of claims 1 to 9, characterized in that: The device for preventing the steel wire rope from being worn out at the rope outlet at the top of the portal crane machine room 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.

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