Flexible angle deflection monitoring device based on shipbuilding portal crane

Abstract

A flexible angle deflection monitoring device based on a shipbuilding portal crane relates to the technical field of cranes, is mounted between a main beam and a flexible supporting leg of the shipbuilding portal crane, and comprises a driving arm, a transmission rod and a deflection monitoring mechanism, the deflection monitoring mechanism is mounted at the top of the flexible supporting leg; the driving arm is vertically connected with the bottom of the main beam in a fastening manner; a U-shaped slot is formed in the bottom of the driving arm; one end of the transmission rod extends into the U-shaped slot, and the other end is in transmission connection with the deflection monitoring mechanism; the end, located in the U-shaped open groove, of the transmission rod is fixedly connected with an S-shaped spring, and the two ends of the S-shaped spring abut against the two groove walls of the U-shaped open groove correspondingly. The end, located in the U-shaped open groove, of the transmission rod is fixedly connected with the S-shaped spring, the two ends of the S-shaped spring abut against the two groove walls of the U-shaped open groove correspondingly, the S-shaped spring can effectively eliminate the matching error between the transmission rod and the U-shaped open groove, and meanwhile the relative displacement of the driving arm and the transmission rod in the vertical direction is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a flexible angular deflection monitoring device based on a shipbuilding gantry crane. Background Art

[0002] Due to the large span and long travel distance of shipbuilding gantry cranes, the problem of the trolley's rigid and flexible leg walking correction is a pain point in the industry. The quality of the trolley's correction function directly affects the working efficiency of the shipbuilding gantry crane.

[0003] A Chinese patent (publication number: CN101759099A) discloses a new type of deflection limiter for a shipbuilding gantry crane; the patent includes a transmission arm, the bottom end of which is hinged to the rear end of the fork, and a pin is set on the rear end of the fork; when the trolley traveling mechanism is moving, due to the asynchronous movement of the trolley traveling mechanism of the two side legs, the main beam rotates accordingly relative to the flexible leg, and drives the transmission arm to rotate together, and the force generated by the rotation of the transmission arm is transmitted to the fork, driving the fork to move in an arc path with the pin as the center point; in actual use, it is found that due to the relative displacement of the transmission arm and the fork in the vertical direction when heavy load and no load are generated, the transmission arm and the fork will also generate relative displacement in the vertical direction when the main beam rotates relative to the flexible leg, so the transmission arm and the fork need to be matched with clearance, resulting in a large error in the transmission between the fork and the fork rod, which in turn affects the detection accuracy. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology, the utility model discloses a flexible angular deflection monitoring device based on a shipbuilding gantry crane.

[0005] In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

[0006] A flexible angular deflection monitoring device based on a shipbuilding gantry crane is installed between the main beam and the flexible support leg of the shipbuilding gantry crane, and includes a driving arm, a transmission rod and a deflection monitoring mechanism; the deflection monitoring mechanism is installed on the top of the flexible support leg; the driving arm is vertically and fastened to the bottom of the main beam, and a U-shaped slot is provided at the bottom of the driving arm; one end of the transmission rod extends into the U-shaped slot, and the other end is transmission-connected to the deflection monitoring mechanism; one end of the transmission rod located in the U-shaped slot is fastened to an S-shaped spring, and the two ends of the S-shaped spring respectively contact the two slot walls of the U-shaped slot.

[0007] Preferably, two groove walls in the U-shaped groove are provided with sliding grooves corresponding to the S-shaped spring at positions corresponding to the S-shaped spring.

[0008] Preferably, the deflection monitoring mechanism comprises a mounting base fixedly connected with the flexible leg, a deflection detection arm is rotatably connected with the mounting base through a fixed shaft, an encoder is installed on the deflection detection arm corresponding to the position of the fixed shaft, and a transmission rod is fixedly connected with the deflection detection arm through a support.

[0009] Preferably, limit switches are installed on the mounting base corresponding to the positions of four corner ends of the deflection detection arm.

[0010] Preferably, a scale is arranged on one end of the mounting base corresponding to the deflection detection arm, and the deflection detection arm is provided with a pointer structure matched with the scale.

[0011] Preferably, a monitoring camera is arranged on one side of the mounting base corresponding to the scale.

[0012] By adopting the technical scheme, the utility model has the advantages of the following:

[0013] The utility model discloses a flexible angle deflection monitoring device based on shipbuilding portal crane, simple structure, easy to assemble, strong reliability, the driving arm is connected with the vertical fastening of main beam bottom, and the U -shaped slot is established in the driving arm bottom, and the one end of transmission rod is in the U -shaped slot, and the one end of transmission rod is fixedly connected with S -shaped spring in the U -shaped slot, and S -shaped spring both ends respectively in the corresponding friction of two groove walls of U -shaped slot, and S -shaped spring can effectively eliminate the cooperation error between transmission rod and U -shaped slot, and simultaneously do not affect the relative displacement of driving arm and transmission rod in the vertical direction.

[0014] The utility model further installs the encoder on the position of the deflection detection arm corresponding fixed shaft, and the rotation angle of the deflection detection arm is monitored in real time through the encoder, can convert the rotation angle of the deflection detection arm into the deflection between the main beam and the flexible leg, thereby can make the operator real -time check the deflection between the main beam and the flexible leg, so as to make the adjustment in time, avoid causing downtime, influence operation process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the connection structure schematic diagram of driving arm and transmission rod;

[0017] Figure 3 It is the bottom view of driving arm;

[0018] Figure 4 It is the structural schematic diagram of S -shaped spring;

[0019] Figure 5 It is the structural schematic diagram of deflection monitoring mechanism.

[0020] In the figure: 1, main beam; 2, flexible leg; 3, driving arm; 4, transmission rod; 5, deflection monitoring mechanism; 5-1, mounting seat; 5-2, deflection detection arm; 5-3, fixed shaft; 5-4, encoder; 5-5, limit switch; 5-6, scale; 6, U-shaped slot; 7, S-shaped spring; 8, sliding groove. DETAILED DESCRIPTION

[0021] The utility model can be explained in detail through the following examples, the purpose of the utility model is disclosed to protect all technical improvements within the scope of the utility model, in the description of the utility model, it needs to be understood that if there are terms "upper", "lower", "front", "rear", "left", "right" and the like indicate the orientation or position relationship, only corresponds to the drawing of the present application, in order to facilitate the description of the utility model, and not indicate or imply that the device or element must have a particular orientation.

[0022] Example 1, in combination with the attached Figures 1 to 4 A flexible angle deflection monitoring device based on shipbuilding portal crane is installed between the main beam 1 and the flexible leg 2 of the shipbuilding portal crane, which comprises a driving arm 3, a transmission rod 4 and a deflection monitoring mechanism 5; the deflection monitoring mechanism 5 is installed at the top of the flexible leg 2, and the deflection monitoring mechanism 5 is a commercially available device. The driving arm 3 is vertically and tightly connected with the bottom of the main beam 1, and the bottom of the driving arm 3 is provided with a U-shaped slot 6; one end of the transmission rod 4 extends into the U-shaped slot 6, and the other end is in transmission connection with the deflection monitoring mechanism 5, that is, when there is relative deflection between the main beam 1 and the flexible leg 2, the driving arm 3 can drive the transmission rod 4 to deflect in the horizontal plane; the transmission rod 4 serves as an input component of the deflection monitoring mechanism 5, and is used for transmitting the deflection amount between the main beam 1 and the flexible leg 2 to the deflection monitoring mechanism 5.

[0023] One end of the transmission rod 4 located in the U-shaped slot 6 is tightly connected with an S-shaped spring 7, and the two ends of the S-shaped spring 7 respectively abut against the two groove walls of the U-shaped slot 6, so that the S-shaped spring 7 can effectively eliminate the matching error between the transmission rod 4 and the U-shaped slot 6, and at the same time, does not affect the relative displacement of the driving arm 3 and the transmission rod 4 in the vertical direction.

[0024] It should be noted that the elastic force of the S-shaped spring 7 is greater than the force required by the deflection monitoring mechanism 5 during work, so as to avoid causing the deflection monitoring mechanism 5 to be unable to work normally.

[0025] Further, as shown in the attached Figure 2 and 3 , the two groove walls in the U-shaped slot 6 are provided with sliding grooves 8 corresponding to the positions of the S-shaped spring 7, that is, the two ends of the S-shaped spring 7 are respectively in sliding connection with the two sliding grooves 8, so as to improve the stability of the S-shaped spring 7 without affecting the relative displacement of the driving arm 3 and the transmission rod 4 in the vertical direction, and prevent the S-shaped spring 7 from accidentally coming out of the U-shaped slot 6.

[0026] Embodiment 2, in combination with the accompanying drawings Figure 1 and 5 A flexible angle deflection monitoring device based on a shipbuilding gantry crane, which is different from Embodiment 1 in that, on the basis of Embodiment 1, the deflection monitoring mechanism 5 comprises a mounting seat 5-1 fixedly connected corresponding to the flexible leg 2, a deflection detection arm 5-2 rotatably connected at the top of the mounting seat 5-1 through a fixed shaft 5-3, an encoder 5-4 installed corresponding to the position of the fixed shaft 5-3 on the deflection detection arm 5-2, and the transmission rod 4 is fixedly connected corresponding to the deflection detection arm 5-2 through a bracket; when there is a relative deflection between the main beam 1 and the flexible leg 2, the driving arm 3 can drive the transmission rod 4 to deflect in the horizontal plane, the transmission rod 4 drives the deflection detection arm 5-2 to rotate around the fixed shaft 5-3, and the rotation angle of the deflection detection arm 5-2 is monitored in real time through the encoder 5-4, which can convert the rotation angle of the deflection detection arm 5-2 into the deflection amount between the main beam 1 and the flexible leg 2, so that the operator can view the deflection amount between the main beam 1 and the flexible leg 2 in real time, so as to make timely adjustment and avoid causing downtime and affecting the operation process.

[0027] The mounting seat 5-1 is provided with a limit switch 5-5 corresponding to the position of each of the four corner ends of the deflection detection arm 5-2, when the deflection amount between the main beam 1 and the flexible leg 2 is greater than the allowable safety value, the deflection detection arm 5-2 can trigger the corresponding limit switch 5-5, and the limit switch 5-5 sends an alarm and a shutdown signal to prevent safety accidents.

[0028] The mounting seat 5-1 is provided with a scale 5-6 corresponding to one end of the deflection detection arm 5-2, and the deflection detection arm 5-2 is provided with a pointer structure corresponding to the scale 5-6, that is, the rotation angle of the deflection detection arm 5-2 can be directly indicated by the cooperation of the pointer structure of the deflection detection arm 5-2 and the scale 5-6, which is convenient for assembly and debugging operation.

[0029] Further, the mounting seat 5-1 is provided with a monitoring camera corresponding to one side of the scale 5-6, that is, the monitoring camera is aimed at the scale 5-6 for shooting in the subsequent use process, so as to monitor the rotation angle of the deflection detection arm 5-2 in real time, compare the rotation angle directly monitored by the monitoring camera with the rotation angle detected by the encoder 5-4, confirm the normal operation of the encoder 5-4, and effectively improve the overall reliability.

[0030] The utility model discloses the part of not detailed is prior art, for the person skilled in the art, apparently the utility model is not limited to the details of the above exemplary embodiments, and can realize the utility model with other specific forms without departing from the spirit or basic characteristics of the utility model, therefore, no matter from which point, should be regarded as exemplary, and is non - limitative, aims at including all changes in the meaning and range of equivalent elements in the utility model.

Claims

1. A flexible angle deflection monitoring device based on shipbuilding gantry crane, installed between the main beam (1) and the flexible leg (2) of the shipbuilding gantry crane, characterized in that: The utility model provides a flexible support leg driving device, including drive arm (3), transmission rod (4) and deflection monitoring mechanism (5), deflection monitoring mechanism (5) is installed at the top of flexible support leg (2), drive arm (3) is connected with the bottom of main beam (1) vertically and is fastened, and the bottom of drive arm (3) is equipped with U-shaped slot (6), and one end of transmission rod (4) extends into U-shaped slot (6), and the other end is connected with deflection monitoring mechanism (5) transmission, and the one end of transmission rod (4) in U-shaped slot (6) is fastened with S-shaped spring (7), and the both ends of S-shaped spring (7) respectively correspond with the two groove walls of U-shaped slot (6) and touch.

2. The flexible angle deflection monitoring device based on shipbuilding gantry crane as claimed in claim 1, wherein: The both ends of S-shaped spring (7) correspond with the two groove walls of U-shaped slot (6) and touch.

3. The flexible angle deflection monitoring device based on shipbuilding gantry crane as claimed in claim 1, wherein: The deflection monitoring mechanism (5) includes a mounting base (5-1) that is fastened to the flexible support leg (2), a deflection detection arm (5-2) that is rotatably connected to the mounting base (5-1) by a fixed shaft (5-3), an encoder (5-4) that is installed on the deflection detection arm (5-2) corresponding to the position of the fixed shaft (5-3), and a transmission rod (4) that is fastened to the deflection detection arm (5-2) by a bracket.

4. The flexible angle deflection monitoring device based on shipbuilding gantry crane as claimed in claim 3, wherein: The mounting base (5-1) is provided with a limit switch (5-5) corresponding to each of the four corner ends of the deflection detection arm (5-2).

5. The flexible corner deflection monitoring device based on shipbuilding gantry crane as claimed in claim 3, wherein: The mounting base (5-1) is provided with a scale (5-6) corresponding to one end of the deflection detection arm (5-2), and the deflection detection arm (5-2) is provided with a pointer structure corresponding to the scale (5-6).

6. The flexible corner deflection monitoring device based on shipbuilding gantry crane as claimed in claim 5, wherein: The mounting base (5-1) is provided with a monitoring camera corresponding to one side of the scale (5-6).

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