CN218411518U - Trolley reel cable tension detection device - Google Patents

Abstract

The utility model relates to a dolly reel cable tension detection device, including setting up the guide pulley between travelling roll table afterbody and the cable drum of travelling bogie, the cable is walked around from the guide pulley below, the guide pulley is connected with the subassembly of weighing. The guide wheel is longitudinally arranged, and central shafts at the front end and the rear end of the guide wheel are respectively arranged on the guide wheel bracket; the weighing assembly comprises a weighing sensor arranged below the guide wheel bracket, the bottom of the guide wheel bracket is connected with the detection part of the weighing sensor, and the weighing sensor is used for detecting the gravity of the guide wheel and the guide wheel bracket. Because the cable exerts the oblique ascending power of perpendicular to tangential direction to the guide pulley, and this power can offset the weight of a part of guide pulley and guide pulley support, recycles the weight that the subassembly that weighs detected guide pulley and guide pulley support, can detect the cable tension size in the travelling bogie operation to judge whether the cable receive and releases normally along with the dolly removal, can effectively reduce the operation risk, prevent the fault amplification, improve production efficiency.

Description

Trolley reel cable tension detection device

The technical field is as follows:

the utility model relates to a dolly reel cable tension detection device.

The background art comprises the following steps:

the use of transport carriages in industrial production sites is very widespread, for example, hot rolled finished coils are also transported in fixed tracks by using transport carriages, wherein a power cable of the carriage applies torque to a cable drum by a torque motor or a spring type drum, so that the cable keeps tension during the operation, and the cable of the transport carriage extends or is recovered along with the movement of the carriage. However, if the torque motor or the spring winding drum is abnormal (for example, a chain between the motor and the cable winding drum falls off), the tension-lost cable cannot be effectively recovered, and finally the cable scattered on the track by the tension-lost cable is broken by the transportation trolley; or the reel mechanism is blocked, and the cable is broken due to overlarge tension in the running process of the trolley, so that the production is seriously affected and great potential safety hazards exist.

The utility model has the following contents:

the utility model discloses make the improvement to the problem that above-mentioned prior art exists, promptly the utility model aims to solve the technical problem that a dolly reel cable tension detection device is provided, structural design is reasonable, can detect the dolly operation in-process cable tension size to judge whether the cable receive and releases normally along with the dolly removal.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a dolly reel cable tension detection device, is including setting up the guide pulley between the operation roll table afterbody of travelling bogie and cable drum, and the cable is walked around from the guide pulley below, the guide pulley is connected with the subassembly of weighing.

Furthermore, the guide wheel is longitudinally arranged, and central shafts at the front end and the rear end of the guide wheel are respectively arranged on the guide wheel bracket; the weighing assembly comprises a weighing sensor arranged below the guide wheel bracket, the bottom of the guide wheel bracket is connected with the detection part of the weighing sensor, and the weighing sensor is used for detecting the gravity of the guide wheel and the guide wheel bracket.

Further, the weighing sensor is electrically connected with the transport trolley through the control unit, and when the weighing sensor detects that the gravity of the guide wheel and the guide wheel bracket is higher than or lower than a set value, the control unit outputs a stop signal to the transport trolley so as to stop the transport trolley.

Further, the control unit adopts a PLC.

Further, still include the HMI computer with control unit electric connection, when weighing sensor detects that guide pulley and guide pulley support's gravity is higher than or is less than the setting value, control unit sends the signal to the HMI computer, and the HMI computer shows alarm information.

Compared with the prior art, the utility model discloses following effect has: the utility model has the advantages of reasonable design, because the oblique ascending power of perpendicular to tangential direction is applyed to the guide pulley to the cable, and this power can offset the weight of partly guide pulley and guide pulley support, the weight of recycling weighing subassembly detection guide pulley and guide pulley support can detect travelling bogie operation in-process cable tension size to judge whether the cable receive and releases normally along with the dolly removal, can effectively reduce the operational risk, prevent the fault amplification, improve production efficiency.

Description of the drawings:

FIG. 1 is a schematic view of the front view structure of the embodiment of the present invention;

fig. 2 is a schematic diagram of an embodiment of the present invention.

1-transporting the trolley; 2-a cable; 3-a guide wheel; 4-a weighing sensor; 5-a cable drum; 6-PLC;7-HMI computer; 8-a guide wheel bracket; f-force applied by the cable to the guide wheel; g-the resultant force measured by the load cell; the angle theta is the included angle between the tangent center point of the cable and the guide wheel and the vertical line of the center point of the guide wheel.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-2, the utility model relates to a trolley drum cable tension detection device, including the guide pulley 3 that sets up between the operation roll table afterbody of travelling bogie 1 and cable drum 5, cable 2 walks around from the guide pulley 3 below and contacts with guide pulley 3, cable drum 5 is rotated by torque motor or spring reel drive, guide pulley 3 is connected with the subassembly of weighing, guide pulley 3 is vertical setting, the front and back both ends center pin of guide pulley 3 is installed respectively on guide pulley support 8; the subassembly of weighing is including installing in the weighing sensor 4 of guide bracket 8 below, and the bottom of guide bracket 8 is connected with weighing sensor 4's detection portion, and weighing sensor 4 is used for detecting guide pulley 3 and guide bracket 8's gravity.

In this embodiment, the weighing sensor 4 is electrically connected to the transportation cart 1 through the control unit, and when the weighing sensor 4 detects that the gravity of the guide wheel 3 and the guide wheel bracket 8 is higher or lower than a set value, the control unit outputs a stop signal to the transportation cart to stop the transportation cart. The method specifically comprises the following steps: if the tension of the cable is abnormally increased or the tension of the cable is lost in the moving process of the transport trolley, the situation that the cable is abnormally recovered and has a fault is judged, and then the signals of the weighing sensors are processed by the control unit and then interlock the transport trolley to stop running.

In this embodiment, the control unit employs a PLC6; the weighing sensor 4 adopts a pressure weighing sensor.

In the embodiment, the device further comprises an HMI computer 7 electrically connected with the control unit, when the weighing sensor 4 detects that the gravity of the guide wheel 3 and the guide wheel support 8 is higher or lower than a set value (the set value is the integral gravity of the guide wheel and the guide wheel support), the control unit transmits a signal to the HMI computer 7, and the HMI computer 7 displays alarm information to prompt an operator to check the trolley cable and the cable drum on site.

As shown in fig. 2, the guide wheel is subjected to stress analysis, when the transportation trolley 1 runs and the winding drum torque motor runs, the cable 2 is tensioned and straightened, the cable contacts the guide wheel 3, a force F which is perpendicular to the tangential direction and obliquely upward is applied to the guide wheel 3, the force F can counteract a part of the integral gravity of the guide wheel bracket 8 and the guide wheel 3, and the force F can be displayed on the reading of the weighing sensor 4. When the winding drum is abnormal in winding, for example, the cable is not stretched, the cable 2 is hung to the ground under the gravity and cannot contact the guide wheel 3. At this time, the force F is equal to 0, and the reading of the load cell 4 is equal to the overall gravity of the guide wheel and the guide wheel bracket. When reel mechanical structure card hinders, the cable 2 receives too big tension during travelling of travelling bogie, has the cable risk of breaking, and power F will become very big when comparing normal operating this moment, receives this influence, closes power G and will diminish, can react out by weighing sensor equally. Therefore, the working condition of the cable of the trolley can be judged in a program according to the reading acquired by the weighing sensor, if the working condition is abnormal, the control unit outputs an OFF signal to stop the movement of the trolley, and outputs alarm information on an HMI computer picture to prompt an operator that the cable is abnormally recovered and prompt the operator to check the cable and a cable drum on site. And an operator checks whether the trolley cable is normal on site, if the trolley cable is abnormal, the trolley cable can be processed in time, and the alarm can be reset after the trolley cable is not abnormal. The device can effectively reduce the operation risk of equipment, prevent the fault from being enlarged, and improve the production efficiency.

It should be noted that the weighing sensor, the PLC, and the HMI computer are all existing products, and corresponding models can be selected as needed, and the connection relationship between the weighing sensor, the PLC, and the HMI computer is also the prior art, and will not be described herein repeatedly.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using a bolt or screw connection) can also be understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be formed by a plurality of solitary component parts equipment, also can be for the solitary part that the integrated into one piece technology made out.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: modifications can still be made to the embodiments of the invention or equivalents may be substituted for some of the features; without departing from the spirit of the technical solution of the present invention, the present invention should be covered by the technical solution of the present invention.

Claims (5)

1. The utility model provides a dolly reel cable tension detection device, is including setting up the guide pulley between travelling table afterbody and the cable drum of travelling bogie, and its characterized in that is walked around to the cable from the guide pulley below: the guide wheel is connected with the weighing component.

2. The trolley drum cable tension detection device as claimed in claim 1, wherein: the guide wheel is longitudinally arranged, and central shafts at the front end and the rear end of the guide wheel are respectively arranged on the guide wheel bracket; the weighing assembly comprises a weighing sensor arranged below the guide wheel bracket, the bottom of the guide wheel bracket is connected with the detection part of the weighing sensor, and the weighing sensor is used for detecting the gravity of the guide wheel and the guide wheel bracket.

3. The trolley reel cable tension detection device as claimed in claim 2, wherein: the weighing sensor is electrically connected with the transport trolley through the control unit, and when the weighing sensor detects that the gravity of the guide wheel and the guide wheel bracket is higher than or lower than a set value, the control unit outputs a stop signal to the transport trolley so as to stop the transport trolley.

4. The trolley drum cable tension detection device as claimed in claim 3, wherein: the control unit adopts a PLC.

5. The trolley reel cable tension detection device of claim 3, wherein: the control unit is electrically connected with the control unit, and when the weighing sensor detects that the gravity of the guide wheel and the guide wheel bracket is higher than or lower than a set value, the control unit transmits a signal to the HMI computer, and the HMI computer displays alarm information.

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