CN215857209U

CN215857209U - Bridge detects moving platform's perpendicular arm connection structure

Info

Publication number: CN215857209U
Application number: CN202122128601.9U
Authority: CN
Inventors: 范英
Original assignee: Liuzhou Boao Machinery Manufacturing Co ltd
Current assignee: Liuzhou Boao Machinery Manufacturing Co ltd
Priority date: 2021-09-04
Filing date: 2021-09-04
Publication date: 2022-02-18
Anticipated expiration: 2031-09-04

Abstract

The utility model relates to a vertical arm connecting structure of a bridge detection moving platform, which comprises a rotary supporting arm and a vertical arm, wherein the vertical arm is connected with the end part of the rotary supporting arm through a turnover mechanism; the turnover mechanism comprises a turnover plate, two side plates, two turnover oil cylinders and a guide limiting device connected with the vertical arm, wherein the guide limiting device comprises four limiting guide wheel sets which are distributed in a rectangular shape and are respectively positioned at the upper end and the lower end of the two side plates, and the vertical arm is vertically arranged and positioned between the horizontally opposite limiting guide wheel sets, so that the vertical arm can slide up and down in the vertical direction; the turnover mechanism is also provided with a lifting mechanism for controlling the vertical arm to ascend or descend. According to the utility model, through the matching of the limiting guide wheel and the sliding guide wheel, the vertical arm can be limited to move up and down only along the vertical direction but not to swing in the front, back, left and right directions, so that the vertical arm is prevented from swinging in the working process, the safety is improved, the swinging abrasion is reduced, and the service life of the equipment is prolonged.

Description

Bridge detects moving platform's perpendicular arm connection structure

Technical Field

The utility model belongs to the technical field of bridge detection equipment, and relates to a vertical arm connecting structure of a bridge detection mobile platform.

Background

Along with the continuous perfection of national infrastructure, the total amount of bridges is continuously increased, bridges are built on rivers, vehicles can conveniently run, therefore, the stability and the safety of the bridges are very important, the regular detection and maintenance of the bridges are also continuously increased, the demand on bridge detection vehicles is increased, the bridge detection vehicles are common mobile bridge detection maintenance auxiliary equipment, a flexible and movable working platform is provided for workers, and the bridge detection maintenance efficiency is greatly improved.

With the development of the technology, some portable bridge detection platforms are also appeared in the market, but the detection platforms are insufficient in overall rigidity, and the guide limiting structure of the vertical arm is unreasonable in design, so that the bridge detection platform can shake and is unstable in the working process, potential safety hazards exist, and the safety risk of bridge detection personnel is increased; the shaking seriously causes accelerated abrasion of the equipment, and the service life is short. In addition, in the existing bridge detection platform, the lifting of the vertical arm usually adopts an elongated hydraulic oil cylinder as a lifting driving device, so that the overall dimension is increased, and the turnover transportation is not convenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vertical arm connecting structure of a bridge detection moving platform, which has the advantages of simple structure, flexible action, small shake during expansion operation and high safety, and effectively solves the problems in the background technology.

The technical scheme adopted by the utility model for realizing the purpose is as follows: a vertical arm connecting structure of a bridge detection moving platform comprises a rotary supporting arm and a vertical arm, wherein the vertical arm is connected with the end part of the rotary supporting arm through a turnover mechanism; the turnover mechanism comprises a turnover plate, two side plates, two turnover oil cylinders and a guide limiting device used for being connected with a vertical arm, wherein the two side plates are symmetrically welded on two side edges of the turnover plate respectively; the guide limiting device comprises four limiting guide wheel sets which are distributed in a rectangular shape and are respectively positioned at the upper end and the lower end of the two side plates, two side edges of one surface, connected with the turnover mechanism, of the vertical arm are respectively provided with a guide rod matched with the limiting guide wheel sets, and the vertical arm is vertically arranged and is positioned between the horizontally opposite limiting guide wheel sets, so that the vertical arm can slide up and down in the vertical direction; and the turnover mechanism is also provided with a lifting mechanism for controlling the vertical arm to ascend or descend.

The further technical scheme of the utility model is as follows: the limiting guide wheel set comprises a limiting guide wheel and two sliding guide wheels, the limiting guide wheel is connected with the corresponding side plate through a rotating shaft I and a guide wheel seat respectively, the axis of the limiting guide wheel is perpendicular to the turnover plate, a sliding groove is concavely arranged on the circumferential surface of the middle part of the limiting guide wheel, and a guide rod of the vertical arm is positioned in the sliding groove of the corresponding limiting guide wheel so as to be in sliding fit with the limiting guide wheel; two slip leading wheels are fixed a position in the outside of spacing leading wheel through pivot II and fixed bolster respectively, and two slip leading wheels set up both sides around the guide bar relatively, the axis of slip leading wheel is perpendicular with the direction of motion of guide bar, the guide bar is located between two corresponding slip leading wheels and with slip leading wheel sliding contact.

The further technical scheme of the utility model is as follows: the lifting mechanisms are divided into two groups and respectively comprise a lifting motor, a lifting gear and lifting racks, and the lifting racks are oppositely arranged on two inner side edges of one surface of the vertical arm connected with the turnover mechanism; the lifting motors are respectively and fixedly connected to the turnover plates of the turnover mechanism, the lifting gears are connected with the rotating shafts of the corresponding lifting motors, and the lifting gears are meshed with the corresponding lifting racks to form gear rack transmission pairs.

The vertical arm connecting structure of the bridge detection mobile platform has the following beneficial effects due to the adoption of the scheme:

1. according to the utility model, the limit guide wheels and the two sliding guide wheels are arranged on the turnover mechanism to connect the vertical arm to the rotary supporting arm, and the limit guide wheels are matched with the sliding guide wheels, so that the vertical arm can be limited to move up and down only along the vertical direction but not swing in the front, back, left and right directions, accurate limit and guide are realized, the vertical arm is prevented from swinging in the working process, the safety is improved, the swinging abrasion is reduced, and the service life of equipment is prolonged;

2. the lifting mechanism is matched with a gear rack, the lifting gear is driven to rotate by the lifting motor, and the lifting rack meshed with the lifting gear drives the vertical arm to move up and down.

The following describes a vertical arm connecting structure of a bridge inspection mobile platform according to the present invention with reference to the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic structural view of a turning support arm and a turning mechanism according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another orientation;

FIG. 3 is an enlarged view at A in FIG. 1;

FIG. 4 is a schematic structural view of a position limiting guide wheel;

FIG. 5 is one of the schematic structural views of the vertical arm in connection with the canting mechanism;

FIG. 6 is a second schematic view of the connection between the vertical arm and the turnover mechanism;

the reference numbers illustrate: 21-rotary supporting arm, 23-turnover mechanism, 231-turnover plate, 2311-first turnover hinging seat, 2312-second turnover hinging seat, 232-side plate, 233-turnover oil cylinder, 234-limiting guide wheel set, 2341-limiting guide wheel, 2342-rotating shaft I, 2343-guide wheel seat, 2344-sliding guide wheel, 2345-rotating shaft II, 2346-fixing support, 2347-sliding chute, 24-vertical arm, 241-guide rod, 271-lifting motor, 272-lifting gear and 273-lifting rack.

Detailed Description

As shown in fig. 1 to 6, the vertical arm connecting structure of the mobile bridge inspection platform according to the present invention includes a rotary supporting arm 21 and a vertical arm 24, wherein the vertical arm 24 is connected to an end of the rotary supporting arm 21 through a turnover mechanism 23.

The turnover mechanism 23 comprises a turnover plate 231, two side plates 232, two turnover oil cylinders 233 and a guiding and limiting device for connecting with the vertical arm 24, wherein the two side plates 232 are symmetrically welded and connected to two side edges of the turnover plate 231 respectively, two side edges of the rear side surface of the turnover plate 231 are respectively provided with a first turnover hinge seat 2311 and a second turnover hinge seat 2312, two side surfaces of the front end of the rotary support arm 21 are respectively hinged with the first turnover hinge seat 2311 through a rotating shaft, the rear ends of the cylinder bodies of the two turnover oil cylinders 233 are respectively hinged with two side surfaces of the rotary support arm 21, the front ends of the telescopic rods of the turnover oil cylinders 233 are respectively hinged with the corresponding second turnover hinge seats 2312, and the telescopic rods of the turnover oil cylinders 233 stretch to enable the turnover plate 231 to turn around the first turnover hinge seats 2311; the guide limiting device comprises four limiting guide wheel sets 234, the four limiting guide wheel sets 234 are distributed in a rectangular shape and are respectively positioned at the upper end and the lower end of the two side plates 232, two side edges of one surface, connected with the turnover mechanism 23, of the vertical arm 24 are respectively provided with a guide rod 241 matched with the limiting guide wheel sets 234, and the vertical arm 24 is vertically arranged and is positioned between the horizontally opposite limiting guide wheel sets 234, so that the vertical arm 24 can slide up and down in the vertical direction; in this embodiment, the limiting guide wheel set 234 includes a limiting guide wheel 2341 and two sliding guide wheels 2344, the limiting guide wheels 2341 are connected with the corresponding side plate 232 through a rotating shaft i 2342 and a guide wheel seat 2343 respectively, the axis of the limiting guide wheel 2341 is perpendicular to the turnover plate 231, a sliding groove 2347 is concavely formed in the circumferential surface of the middle part of the limiting guide wheel 2341, and the guide rod 241 of the vertical arm 24 is positioned in the sliding groove 2347 of the corresponding limiting guide wheel 2341 so as to be in sliding fit with the limiting guide wheel 2341; the two sliding guide wheels 2344 are positioned on the outer side of the limiting guide wheel 2341 through the rotating shaft II 2345 and the fixing bracket 2346 respectively, the two sliding guide wheels 2344 are oppositely arranged on the front side and the rear side of the guide rod 241, the axis of each sliding guide wheel 2344 is perpendicular to the moving direction of the guide rod 241, and the guide rod 241 is located between the corresponding two sliding guide wheels 2344 and is in sliding contact with the sliding guide wheels 2344.

According to the utility model, the four limit guide wheels 2341 of the guide limiting device limit that the vertical arm 24 cannot swing in the left-right direction, the sliding guide wheel 2344 arranged at the position corresponding to the limit guide wheel 2341 can limit that the vertical arm 24 cannot swing in the front-back direction, and the limit guide wheel 2341 is matched with the sliding guide wheel 2344, so that the vertical arm 24 can be limited to move up and down only along the vertical direction and cannot swing in the front-back direction, the left-right direction and the front-back direction, accurate limiting and guiding are realized, the vertical arm 24 is prevented from swinging in the working process, the safety is improved, the swinging abrasion is reduced, and the service life of the equipment is prolonged.

The vertical arm 24 is further provided with two groups of lifting mechanisms for controlling the vertical arm 24 to ascend or descend, in this embodiment, the two groups of lifting mechanisms respectively comprise a lifting motor 271, a lifting gear 272 and a lifting rack 273, and the lifting racks 273 are oppositely arranged on two inner side edges of one surface of the vertical arm 24 connected with the turnover mechanism 23; the lifting motors 271 are respectively fixedly connected to the turnover plates 231 of the turnover mechanism 23, the lifting gears 272 are connected to the rotating shafts of the corresponding lifting motors 271, the lifting gears 272 are meshed with the corresponding lifting racks 273 to form gear-rack transmission pairs, the lifting motors 271 can drive the lifting gears 272 to rotate, and the lifting racks 273 meshed with the lifting gears 272 drive the vertical arms 24 to move up and down.

The above embodiments are only preferred embodiments of the present invention, and the structure of the present invention is not limited to the forms of the above embodiments, and any modifications, equivalents and the like within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical arm connecting structure of a bridge detection moving platform comprises a rotary supporting arm (21) and a vertical arm (24), wherein the vertical arm (24) is connected with the end part of the rotary supporting arm (21) through a turnover mechanism (23); it is characterized in that the turnover mechanism (23) comprises a turnover plate (231), two side plates (232), two turnover oil cylinders (233) and a guiding and limiting device which is used for connecting with the vertical arm (24), the two side plates (232) are respectively and symmetrically welded and connected with the two side edges of the turnover plate (231), a first overturning hinging seat (2311) and a second overturning hinging seat (2312) are respectively arranged at two side edges of the rear side surface of the overturning plate (231), two side surfaces of the front end of the rotary supporting arm (21) are hinged with a first overturning hinging seat (2311) through rotating shafts respectively, the rear ends of cylinder bodies of two overturning oil cylinders (233) are hinged with two side surfaces of the rotary supporting arm (21) respectively, the front ends of telescopic rods of the overturning oil cylinders (233) are hinged with corresponding second overturning hinging seats (2312) respectively, and the telescopic rods of the overturning oil cylinders (233) stretch to enable the overturning plate (231) to overturn and rotate around the first overturning hinging seat (2311); the guide limiting device comprises four limiting guide wheel sets (234), the four limiting guide wheel sets (234) are distributed in a rectangular shape and are respectively positioned at the upper end and the lower end of the two side plates (232), guide rods (241) matched with the limiting guide wheel sets (234) are respectively arranged on two side edges of one surface, connected with the turnover mechanism (23), of the vertical arm (24), and the vertical arm (24) is vertically arranged and is positioned between the horizontally opposite limiting guide wheel sets (234), so that the vertical arm (24) can vertically slide in the vertical direction; the turnover mechanism (23) is also provided with a lifting mechanism for controlling the vertical arm (24) to ascend or descend.

2. The vertical arm connecting structure of the bridge inspection mobile platform of claim 1, wherein: the limiting guide wheel set (234) comprises a limiting guide wheel (2341) and two sliding guide wheels (2344), the limiting guide wheel (2341) is connected with the corresponding side plate (232) through a rotating shaft I (2342) and a guide wheel seat (2343) respectively, the axis of the limiting guide wheel (2341) is perpendicular to the turnover plate (231), a sliding groove (2347) is formed in the circumferential surface of the middle of the limiting guide wheel (2341) in a recessed mode, and a guide rod (241) of the vertical arm (24) is positioned in the sliding groove (2347) of the corresponding limiting guide wheel (2341) and is in sliding fit with the limiting guide wheel (2341); the two sliding guide wheels (2344) are positioned on the outer side of the limiting guide wheel (2341) through the rotating shaft II (2345) and the fixing support (2346) respectively, the two sliding guide wheels (2344) are arranged on the front side and the rear side of the guide rod (241) oppositely, the axis of each sliding guide wheel (2344) is perpendicular to the moving direction of the guide rod (241), and the guide rod (241) is located between the corresponding two sliding guide wheels (2344) and is in sliding contact with the sliding guide wheels (2344).

3. The vertical arm connecting structure of the bridge inspection mobile platform of claim 1, wherein: the two groups of lifting mechanisms respectively comprise a lifting motor (271), a lifting gear (272) and lifting racks (273), and the lifting racks (273) are oppositely arranged on two inner side edges of one surface, connected with the turnover mechanism (23), of the vertical arm (24); the lifting motors (271) are respectively and fixedly connected to the turnover plates (231) of the turnover mechanisms (23), the lifting gears (272) are connected with the rotating shafts of the corresponding lifting motors (271), and the lifting gears (272) are meshed with the corresponding lifting racks (273) to form gear-rack transmission pairs.