WO2023071111A1

WO2023071111A1 - Crane pulley testing device for ocean engineering

Info

Publication number: WO2023071111A1
Application number: PCT/CN2022/089857
Authority: WO
Inventors: 蓝兰; 韩文涛; 林果
Original assignee: 天津大学滨海工业研究院有限公司
Priority date: 2021-10-28
Filing date: 2022-04-28
Publication date: 2023-05-04
Also published as: CN215986125U

Abstract

The present utility model relates to the technical field of the testing of crane pulleys, and particularly relates to a crane pulley testing device for ocean engineering, the crane pulley testing device comprising a workbench, wherein a rectangular groove is provided at the upper end of the workbench; a lifting plate is movably mounted in the rectangular groove; a square groove is provided in a side wall of the lifting plate; a rack is fixedly mounted on an inner wall of the square groove; a vertical plate is fixedly mounted at the upper end of the workbench; a bolt is mounted inside the vertical plate in a threaded manner; a gear is fixedly mounted on a side wall of the bolt; moving holes are uniformly and equidistantly provided in the side wall of the lifting plate; a clamping mechanism is movably mounted inside the moving holes; the clamping mechanism comprises a fixed column, which is fixedly connected to the lifting plate; a movable column is movably mounted inside each of the four moving holes; springs are movably sleeved on surfaces of the four movable columns; and a moving bar is fixedly mounted at one end of each of the four movable columns away from the lifting plate, such that the apparatus can limit a test pulley during use, and the pulley cannot be damaged under the action of the springs.

Description

Marine engineering crane pulley detection device

technical field

The present application relates to the technical field of crane pulley detection, in particular to a detection device for a crane pulley in marine engineering.

Background technique

The pulley is a small wheel with grooves around the periphery and can rotate around the axis. It consists of a disc with grooves that can rotate around the central axis and a flexible cable (rope, tape, steel cable, chain, etc.) that crosses the disc. A simple machine that rotates around a central axis is called a pulley.

Disclosed as Chinese patent: a kind of ocean engineering crane pulley detection device, publication number: CN211042699U, it is through the setting of tightening screw rod, limit seat, pulley and fixed rod, when tightening screw rod is screwed out by wrench, limit seat is taken off , and then remove the pulley from the pin-connected bearing, replace the other pulley pin-connected bearing, and then tighten the tightening screw and the limit seat with a wrench to tighten the pulley, which can quickly replace the pulley, which is convenient for quick detection of multiple pulleys. However, when the device is used, the pulley is fixed by a screw rod, which is easy to cause damage to the pulley during the fixing process, thereby affecting the detection data.

Utility model content

The purpose of this utility model is to provide a detecting device for a pulley of an ocean engineering crane, so as to solve the problems raised in the above-mentioned background technology.

The embodiment of the present application adopts the following technical scheme: the offshore engineering crane pulley detection device includes a workbench, a rectangular groove is opened on the upper end of the workbench, a lifting plate is movably installed inside the rectangular groove, and the side wall of the lifting plate is set There is a square groove, the inner wall of the square groove is fixedly installed with a rack, the upper end of the workbench is fixedly installed with a vertical plate, the internal thread of the vertical plate is installed with bolts, the side wall of the bolt is fixedly installed with gears, the lifting There are movable holes evenly and equidistantly on the side wall of the board;

A detection mechanism is fixedly installed on the side wall of the riser;

A clamping mechanism is movably installed inside the movable hole.

The detection mechanism includes a motor body, the motor body is fixedly connected with the vertical plate, the lower end of the motor body is fixedly installed with a support seat, the output end of the motor body is fixedly installed with a toothed plate, and the toothed plate is meshed with a A chain, the end of the chain away from the chainring is engaged with a pulley.

The clamping mechanism includes a fixed column, and the fixed column is fixedly connected with the lifting plate. There are movable columns installed inside the four movable holes, and springs are movably sleeved on the surfaces of the four movable columns. The ends of the movable columns away from the lifting plate are all fixedly equipped with moving bars, and the ends of the four moving bars away from the springs are fixedly installed with extrusion discs.

Preferably, the pulley, the extrusion disc and the side wall of the threaded ring are all provided with circular grooves, and the fixed column is movably arranged in the circular grooves.

Preferably, a threaded ring is provided at the front end of the pulley, and the threaded ring is threadedly mounted on the surface of the fixing column.

Preferably, the two ends of the four springs are respectively fixedly connected with the lifting plate and the moving bar.

The above at least one technical solution adopted in the embodiment of the present application can achieve the following beneficial effects:

First, when in use, turn the bolt clockwise first, and then drive the fixed gear to rotate clockwise under the clockwise rotation of the bolt. At this time, the clockwise rotation of the gear drives the gear rack meshed with it to move upward , at this time, set the pulley movable on the fixed column, turn the threaded ring at this time, squeeze the pulley to move backward under the rotation of the threaded ring, at this time, squeeze the extrusion plate to move backward under the movement of the pulley, this When the extrusion plate squeezes the moving bar, the spring is deformed, and the elastic force is generated to limit the pulley, so that the device can limit the pulley to be detected during use, and the spring will not cause damage to the pulley during the limit. damage, ensuring the integrity of the pulley;

Second, set the chain inside the pulley at this time, then turn the bolt counterclockwise to drive the pulley down to tighten the chain, then open the motor body, and drive the chainring connected to its output shaft under the action of the motor body to generate At this time, under the rotation of the sprocket, the chain and the pulley meshed with it are driven to rotate synchronously, so as to effectively detect the rotation speed of the pulley, and the detection effect is better.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments of the application and their descriptions are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;

Fig. 2 is a schematic diagram of the connection structure of the utility model vertical plate;

Fig. 3 is a schematic diagram of the connection structure of the lifting plate of the present invention;

Fig. 4 is a schematic diagram of the connection structure of the fixed column of the present invention.

In the figure: 11, working table; 12, rectangular slot; 13, lifting plate; 14, square slot; 15, rack; 16, vertical plate; 17, bolt; 18, gear; 19, movable hole; 21, motor body ; 22, support seat; 23, chainring; 24, chain;

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the offshore engineering crane pulley detection device includes a workbench 11, the upper end of the workbench 11 is provided with a rectangular groove 12, and the inside of the rectangular groove 12 is movable with a lifting plate 13, the lifting plate 13 The side wall is provided with a square groove 14, the inner wall of the square groove 14 is fixed with a rack 15, the upper end of the workbench 11 is fixed with a vertical plate 16, the internal thread of the vertical plate 16 is installed with a bolt 17, and the side wall of the bolt 17 is fixed with a gear 18, the side wall of the lifting plate 13 is evenly and equidistantly provided with movable holes 19;

A detection mechanism is fixedly installed on the side wall of the vertical plate 16;

A clamping mechanism is movably installed inside the movable hole 19 .

The detection mechanism includes a motor body 21, the motor body 21 is fixedly connected with the riser 16, the lower end of the motor body 21 is fixedly installed with a support seat 22, the output end of the motor body 21 is fixedly installed with a toothed disc 23, and the inner part of the toothed disc 23 is meshed with a chain 24 , the end of the chain 24 away from the chainring 23 is engaged with a pulley 25 .

The clamping mechanism includes a fixed column 31, which is fixedly connected with the lifting plate 13, and the inside of the four movable holes 19 is equipped with a movable column 32, and the surfaces of the four movable columns 32 are movably sleeved with springs 33, and the four movable columns 32 is fixedly installed with moving bar 34 at one end far away from lifting plate 13, and four springs 33 two ends are fixedly connected with lifting plate 13 and moving bar 34 respectively, and four moving bars 34 are fixedly installed with extruding bar 34 far away from one end of spring 33. Disc 35, pulley 25 front ends are provided with threaded ring 36, and threaded ring 36 threads are installed on fixed post 31 surfaces, and pulley 25, extruding disc 35 and threaded ring 36 side walls are all provided with circular grooves, and fixed post 31 activities are arranged in circular grooves. in the slot.

When in use, first turn the bolt 17 clockwise, and then drive the fixed gear 18 to rotate clockwise under the clockwise rotation of the bolt 17, and then drive the rack meshed with it under the clockwise rotation of the gear 18 15 moves upwards. At this time, the pulley 25 is movably sleeved on the fixed column 31. At this time, the threaded ring 36 is rotated again, and the pulley 25 is squeezed to move backward under the rotation of the threaded ring 36. Press the extrusion plate 35 to move backward, at this time, the extrusion plate 35 presses the moving bar 34 to drive the spring 33 to deform and generate elastic force to limit the pulley 25, so that the device can limit the position of the pulley 25 to be detected when it is in use , and the pulley 25 will not be damaged under the action of the spring 33; at this time, the chain 24 is sleeved inside the pulley 25, and then the bolt 17 is turned counterclockwise to drive the pulley 25 to move downward so that the chain 24 is tightened, and then opened The motor body 21 drives the toothed disc 23 connected to its output shaft to rotate under the action of the motor body 21. At this time, the chain 24 and the pulley 25 engaged with it are driven to rotate synchronously under the rotation of the toothed disc 23, thereby effectively The rotating speed of the pulley 25 is detected, and the detection effect is better.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, commodity, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only examples of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

The marine engineering crane pulley detection device includes a workbench (11), a rectangular groove (12) is opened on the upper end of the workbench (11), and a lifting plate (13) is movably installed inside the rectangular groove (12). In that: the side wall of the lifting plate (13) is provided with a square groove (14), the inner wall of the square groove (14) is fixedly installed with a rack (15), and the upper end of the workbench (11) is fixedly installed with a vertical plate (16), the internal thread of the riser (16) is equipped with bolts (17), the side walls of the bolts (17) are fixedly equipped with gears (18), and the side walls of the lifting plate (13) are evenly and equidistantly provided with Movable hole (19);

The side wall of the riser (16) is fixedly equipped with a detection mechanism;

A clamping mechanism is movably installed inside the movable hole (19).
The marine engineering crane pulley detection device according to claim 1, characterized in that: the detection mechanism includes a motor body (21), the motor body (21) is fixedly connected to the riser (16), and the motor body ( 21) A support seat (22) is fixedly installed at the lower end, a toothed disc (23) is fixedly installed at the output end of the motor body (21), and a chain (24) is engaged inside the toothed disc (23), and the chain (24) A pulley (25) is engaged with one end away from the chainring (23).
The marine engineering crane pulley detection device according to claim 2, characterized in that: the clamping mechanism includes a fixed column (31), the fixed column (31) is fixedly connected with the lifting plate (13), and the four Movable posts (32) are all movably installed inside the movable holes (19), and springs (33) are all movably sleeved on the surfaces of four described movable posts (32), and four described movable posts (32) are away from lifting plates (13 ) are all fixedly installed with a moving bar (34), and one end of four described moving bars (34) is fixedly installed with an extruding plate (35) away from the spring (33).
The marine engineering crane pulley detection device according to claim 3, characterized in that: the side walls of the pulley (25), squeeze disc (35) and threaded ring (36) are all provided with circular grooves, and the fixed column ( 31) The activity is arranged in the circular groove.
The marine engineering crane pulley detection device according to claim 4, characterized in that: the front end of the pulley (25) is provided with a threaded ring (36), and the threaded ring (36) is threadedly mounted on the surface of the fixing column (31).
The offshore engineering crane pulley detection device according to claim 3, characterized in that: the two ends of the four springs (33) are fixedly connected to the lifting plate (13) and the moving bar (34) respectively.