Rope disorder detection device and winch trolley

Abstract

The utility model belongs to the technical field of cranes, and particularly relates to a disordered rope detection device and a winch trolley. The disordered rope detection device comprises supporting frames symmetrically arranged on the peripheral side of a winding drum, wherein the two supporting frames are correspondingly arranged at the two ends of a winding groove, used for winding a steel wire rope, of the winding drum; the transmitting end and the receiving end of the photoelectric sensor are respectively mounted on the two support frames through mounting mechanisms; wherein a detection path between the transmitting end and the receiving end of the photoelectric sensor is parallel to the winding axis of the winding drum. The height of the steel wire rope wound on the winding drum is ingeniously utilized, whether the steel wire rope is disordered or not is accurately judged, the winch trolley is controlled in real time according to the detected result, safety accidents caused by continuous lifting of the lifting mechanism when the steel wire rope is disordered are avoided, the risk of the safety accidents is greatly reduced, and meanwhile the safety of the winch trolley is guaranteed. The problem of damage to the steel wire rope caused by disordered ropes is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of cranes, and in particular relates to a tangled rope detection device and a winch trolley. Background Art

[0002] The winch trolley is an important part of the crane, used to retract and release the wire rope. The winch trolleys on the market generally include a lifting mechanism, a power source, a wire rope, and a drum for winding the wire rope. In order to ensure the stability of the winch trolley, the wire rope on the drum is mostly wound in a single layer. However, in actual operation, the wire rope is easily wound multiple times or cross-wound at the same position on the drum during the winding process, which is a tangled rope phenomenon.

[0003] In the prior art, there is no detection and judgment on whether the winch trolley has tangled ropes. If the hoisting trolley has tangled ropes and the lifting mechanism continues to lift, safety accidents are likely to occur and the wire rope is easily damaged. Utility Model Content

[0004] The purpose of the utility model is to design a tangled rope detection device and a winch trolley, which are used to perform real-time detection of tangled ropes when tangled ropes occur, and control the winch trolley according to the detection result, so as to ensure that the lifting mechanism does not continue to lift when tangled ropes occur, thereby solving the safety problems and component damage problems caused by the lifting mechanism continuing to lift when tangled ropes occur.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A tangled rope detection device, comprising:

[0007] Support frames are symmetrically arranged around the drum, and the two support frames correspond to the two ends of the winding groove of the drum for winding the wire rope;

[0008] A photoelectric sensor, wherein the transmitting end and the receiving end of the photoelectric sensor are respectively mounted on the two support frames through a mounting mechanism, and is used to detect the height of the wire rope wound on the drum; wherein,

[0009] The detection path between the transmitting end and the receiving end of the photoelectric sensor is parallel to the winding axis of the roll.

[0010] Specifically, the distance between the detection path of the photoelectric sensor and the bottom of the winding groove is L; L is greater than one times the diameter of the wound steel wire rope and less than two times the diameter of the steel wire rope.

[0011] Specifically, there are two photoelectric sensors, which are respectively mounted on two mounting mechanisms, and the two photoelectric sensors are redundant with each other.

[0012] Specifically, the mounting mechanism includes a connecting plate fixedly connected to the support frame through a fixing component and a sensor mounting seat mounted on the connecting plate through an adjusting component; the transmitting end and the receiving end of the photoelectric sensor are respectively mounted on two sensor mounting seats.

[0013] Specifically, the adjustment assembly includes an adjustment plate, a fixing hole provided on the adjustment plate, an adjustment slot provided on the connecting plate, and a fastening bolt for penetrating the fixing hole and the adjustment slot; wherein,

[0014] The extension line of the adjusting long hole is perpendicular to the winding axis of the reel.

[0015] Specifically, the fixing assembly includes a fixing plate and at least two fixing bolts;

[0016] When the connecting plate is fixedly installed with the supporting frame, the fixing bolts are respectively located on the upper end surface and the lower end surface of the supporting frame, and pass through the fixing plate and the connecting plate in sequence and are screwed and fastened with the matching nuts.

[0017] Specifically, the support frame is arc-shaped and is installed on the frame of the hoisting trolley.

[0018] A hoisting trolley comprises the tangled rope detection device as described above.

[0019] Specifically, it also includes a rope pressing assembly installed at the end of the support frame, and the rope pressing assembly includes a rope pressing frame fixedly connected to the end of the support frame and a rope pressing drum rotatably installed on the rope pressing frame, and the rope pressing drum is used to adjust the height and position of the wire rope wound on the drum.

[0020] The beneficial effects of the utility model of a tangled rope detection device and a winch trolley are:

[0021] The utility model is provided with a photoelectric sensor on the peripheral side of the drum for detecting the height of the steel wire rope wound on the drum. The height of the steel wire rope wound on the drum is cleverly utilized to realize accurate judgment on whether the steel wire rope is tangled. The hoisting trolley is controlled in real time according to the detected result to avoid the safety accidents caused by the lifting mechanism continuing to lift when the rope is tangled, thereby greatly reducing the risk of safety accidents and avoiding the damage of the steel wire rope caused by the tangled rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is a front view of the installation of the rope disorder detection device and the reel in the embodiment of the utility model.

[0024] Figure 2 yes Figure 1 Partial cross-sectional view at BB in the middle.

[0025] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0026] Figure 4 It is an installation diagram of the fixing assembly of the embodiment of the utility model.

[0027] In the figure: 1. reel, 2. support frame, 3. winding groove, 4. photoelectric sensor, 5. mounting mechanism, 51. fixing assembly, 511. fixing plate, 512. fixing bolt, 52. connecting plate, 53. adjusting assembly, 531. adjusting plate, 532. fixing hole, 533. fastening bolt, 534. adjusting long hole, 6. wire rope, 7. rope pressing assembly, 71. rope pressing frame, 72. rope pressing drum. DETAILED DESCRIPTION

[0028] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0029] like Figure 1-Figure 4 The specific embodiment of the utility model of a disordered rope detection device shown in the figure comprises support frames 2 symmetrically arranged on the side of the drum 1, the two support frames 2 corresponding to the two ends of the winding groove 3 of the drum 1 for winding the wire rope 6, and also comprises a photoelectric sensor 4, the transmitting end and the receiving end of the photoelectric sensor 4 are respectively installed on the two support frames 2 through the installation mechanism 5, and are used to detect the height of the wire rope 6 wound on the drum 1, wherein the detection path between the transmitting end and the receiving end of the photoelectric sensor 4 is parallel to the winding axis of the drum 1. The support frame 2 in this embodiment is arc-shaped and is installed on the frame of the hoisting trolley, see Figure 1 The support frame 2 and the frame are fixed by welding or bolts, and there is no absolute limitation on the fixing method of the support frame 2 and the frame. It should be understood that the connection between the drum 1 and the frame of the winch trolley through the bearing frame is a technical solution that should be clear to those skilled in the art, and no detailed illustration is given here.

[0030] In order to avoid safety hazards caused by tangled ropes, a detection device for real-time detection of tangled ropes of the wire rope 6 is installed on the peripheral side of the drum 1, that is, a photoelectric sensor 4 for detecting the height of the wire rope 6 wound on the drum 1 is arranged on the peripheral side of the drum 1. The height of the wire rope 6 wound on the drum 1 is cleverly used to accurately determine whether the wire rope 6 is tangled. The winch trolley is controlled in real time according to the detected result to avoid the lifting mechanism continuing to lift when the rope is tangled, thereby greatly reducing the risk of safety accidents. At the same time, to avoid the problem of damage to the wire rope 6 caused by tangled ropes, it only needs to be modified on the existing winch trolley, and there is no need to make large-scale changes to the existing winch trolley. The overall structure is simple, installation is convenient, and the cost is low.

[0031] Specifically, see Figure 3 , the distance between the detection path of the photoelectric sensor 4 in this embodiment and the bottom of the winding groove 3 is L, and L is greater than one times the diameter of the wound wire rope 6 and less than two times the diameter of the wire rope 6. When the wire rope 6 is tangled on the drum 1, the wire rope 6 bulges, that is, the height of the wire rope 6 wound on the drum 1 increases, and the wire rope 6 in the tangled state blocks the path illuminated by the photoelectric sensor 4, and the sensor loses the photoelectric signal, that is, it is judged as tangled rope; when there is no obstacle blocking the path between the transmitting end and the receiving end of the electric sensor, the signal of the photoelectric sensor 4 is normal, and it is judged that there is no tangled rope phenomenon. When it is judged as tangled rope, the lifting mechanism is controlled to prohibit further lifting, but it can be lowered, thereby avoiding the occurrence of safety accidents and damage to the wire rope 6.

[0032] As a preferred implementation, in this embodiment, there are two photoelectric sensors 4, which are respectively installed on two installation mechanisms 5. The two photoelectric sensors 4 are redundant with each other, that is, each photoelectric sensor 4 is both a transmitting end and a receiving end. After the first photoelectric sensor 4 transmits a photoelectric signal, it is received by the second photoelectric sensor 4. Similarly, the second photoelectric sensor 4 can also transmit a photoelectric signal. Through the two photoelectric sensors 4 respectively installed at both ends of the reel 1, they illuminate each other. Even if one photoelectric sensor 4 is damaged, it is still possible to detect tangled ropes, thereby ensuring the stability of the tangled rope detection device.

[0033] like Figure 2 As shown, the mounting mechanism 5 in this embodiment includes a connecting plate 52 fixedly connected to the support frame 2 through a fixing component 51 and a sensor mounting seat installed on the connecting plate 52 through an adjusting component 53. The transmitting end and the receiving end of the photoelectric sensor 4 are respectively installed on the two sensor mounting seats. In this embodiment, there are two redundant photoelectric sensors 4, which are respectively installed on the sensor mounting seats.

[0034] For further explanation, see Figure 3The adjustment assembly 53 in this embodiment includes an adjustment plate 531, a fixing hole 532 provided on the adjustment plate 531, an adjustment slot 534 provided on the connecting plate 52, and a fastening bolt 533 for penetrating the fixing hole 532 and the adjustment slot 534; wherein the extension line of the adjustment slot 534 is perpendicular to the winding axis of the drum 1. The setting of the adjustment assembly 53 can adjust the position of the photoelectric sensor 4 in the vertical direction according to the diameter of the steel wire rope 6, that is, adjust the detection path of the photoelectric sensor 4, so that the present tangled rope detection device can detect tangled ropes of steel wire ropes 6 of different diameters, thereby enhancing the applicability of the tangled rope detection device.

[0035] like Figure 4 As shown, in this embodiment, the fixing assembly 51 includes a fixing plate 511 and at least two fixing bolts 512. When the connecting plate 52 is fixedly installed with the support frame 2, the fixing bolts 512 are respectively located on the upper end surface and the lower end surface of the support frame 2, and sequentially pass through the fixing plate 511 and the connecting plate 52 and are screwed and fastened with the matching nuts. As a preferred embodiment, there are two fixing bolts 512, which are respectively located on the upper end surface and the lower end surface of the support frame 2 to fix the connecting plate 52 on the support frame 2.

[0036] It should be understood that the winch trolley equipped with the above-mentioned tangled rope detection device should also fall within the protection scope required by the utility model. To further ensure the safety of the winch trolley, a rope pressing assembly 7 for adjusting the height of the steel wire rope 6 wound on the drum 1 is also installed at the end of the support frame 2. The rope pressing assembly 7 includes a rope pressing frame 71 fixedly connected to the end of the support frame 2 and a rope pressing drum 72 rotatably mounted on the rope pressing frame 71. The rope pressing drum 72 is used to adjust the height and position of the steel wire rope 6 wound on the drum 1. The setting of the rope pressing assembly 7, combined with the tangled rope detection device, can reduce the occurrence of tangled ropes while avoiding the occurrence of safety accidents caused by the tangled ropes not being discovered, and extend the service life of the rope pressing assembly 7, the steel wire rope 6 and other components. It should be understood that the winch trolley of the utility model also includes a controller to send control commands to various components in the winch trolley. The specific implementations that can be thought of by those skilled in the art can be applied to the utility model. The specific implementation of the controller will not be described in detail here.

[0037] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A tangled rope detection device, characterized in that: include: Support frames (2) are symmetrically arranged on the circumference of the drum (1), and the two support frames (2) correspond to the two ends of a winding groove (3) on the drum (1) for winding the steel wire rope (6); A photoelectric sensor (4), wherein the transmitting end and the receiving end of the photoelectric sensor (4) are respectively mounted on the two support frames (2) via a mounting mechanism (5), and is used to detect the height of the steel wire rope (6) wound on the drum (1); wherein: The detection path between the transmitting end and the corresponding receiving end of the photoelectric sensor (4) is parallel to the winding axis of the reel (1).

2. A tangled rope detection device according to claim 1, characterized in that: The distance between the detection path of the photoelectric sensor (4) and the bottom of the winding groove (3) is L; L is greater than one times the diameter of the wound steel wire rope (6) and less than two times the diameter of the steel wire rope (6).

3. The tangled rope detection device according to claim 1, characterized in that: There are two photoelectric sensors (4), which are respectively mounted on two mounting mechanisms (5), and the two photoelectric sensors (4) are redundant with each other.

4. The tangled rope detection device according to claim 1, characterized in that: The mounting mechanism (5) comprises a connecting plate (52) fixedly connected to the support frame (2) via a fixing assembly (51) and a sensor mounting seat mounted on the connecting plate (52) via an adjusting assembly (53); a transmitting end and a receiving end of the photoelectric sensor (4) are respectively mounted on the two sensor mounting seats.

5. A tangled rope detection device according to claim 4, characterized in that: The adjustment assembly (53) comprises an adjustment plate (531), a fixing hole (532) provided on the adjustment plate (531), an adjustment long hole (534) provided on the connecting plate (52), and a fastening bolt (533) for penetrating the fixing hole (532) and the adjustment long hole (534); wherein: An extension line of the adjusting long hole (534) is perpendicular to the winding axis of the reel (1).

6. A tangled rope detection device according to claim 4, characterized in that: The fixing assembly (51) comprises a fixing plate (511) and at least two fixing bolts (512); When the connecting plate (52) and the support frame (2) are fixedly mounted, the fixing bolts (512) are respectively located on the upper end surface and the lower end surface of the support frame (2), and sequentially pass through the fixing plate (511) and the connecting plate (52) to be screwed and fastened with matching nuts.

7. The tangled rope detection device according to claim 1, characterized in that: The support frame (2) is arc-shaped and is mounted on the frame of the hoisting trolley.

8. A winch trolley, characterized in that: It comprises the rope tangling detection device as described in any one of claims 1 to 7.

9. The hoisting trolley according to claim 8, characterized in that: It also includes a rope pressing assembly (7) mounted at the end of the support frame (2), the rope pressing assembly (7) comprising a rope pressing frame (71) fixedly connected to the end of the support frame (2) and a rope pressing drum (72) rotatably mounted on the rope pressing frame (71), the rope pressing drum (72) being used to adjust the height and position of the steel wire rope (6) wound on the drum (1).

Images