CN212769458U

CN212769458U - Automatic leveling control system of crane

Info

Publication number: CN212769458U
Application number: CN202021712553.7U
Authority: CN
Inventors: 梁建林; 陈珂; 王智军; 陈刚
Original assignee: Henan Mine Crane Co Ltd
Current assignee: Henan Mine Crane Co Ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-03-23
Anticipated expiration: 2030-08-17

Abstract

The utility model relates to an automatic leveling control system of hoist, including cart running gear, the lower end roof beam, the both ends at lower end roof beam top are equipped with horizontal detection device, be equipped with adjusting device between lower end roof beam and the cart running gear, be equipped with the controller on the cart running gear, adjusting device includes lower free bearing, lower free bearing articulates there is last free bearing, it is fixed with the lower casing to go up the free bearing top, be fixed with hydraulic cylinder on the inside bottom surface of lower casing, hydraulic cylinder's top nestification is inside the lower end roof beam, lower extreme roof beam bottom end is fixed with the upper casing pipe, it establishes at the lower casing outside to go up the casing pipe cover, be equipped with the solenoid electric valve on hydraulic cylinder's the oil pipe, be equipped with position detecting device on the hydraulic cylinder, horizontal detection device, the solenoid electric valve. The level detection device and the position detection device transmit real-time monitoring data to the controller, and the controller performs data summarization and comparison and then regulates and controls the electromagnetic control valve to adjust the lifting of the hydraulic oil cylinder so as to achieve the purpose of automatic leveling.

Description

Automatic leveling control system of crane

Technical Field

The utility model belongs to the technical field of the hoisting machinery, especially, relate to an automatic leveling control system of hoist.

Background

The gantry crane is a gantry crane in the shape of a portal with a horizontal bridge frame arranged on four legs, runs on a ground track, and is mainly used for carrying and installing in open-air storage yards, docks, power stations, ports, railway freight stations and the like. In practical use, due to the fact that the ground of an installation site is uneven, the front and the back of a cart running track are different in height, the crane runs unstably, and safety accidents are easy to happen. However, the leveling control system commonly used in the prior art has complex operation, long leveling time and poor precision, and influences the construction efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic leveling control system of hoist to solve the automatic leveling control system operation of the hoist among the prior art complicacy, leveling time is long, the precision is poor, influences the technical problem of efficiency of construction.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the automatic leveling control system of the crane comprises a cart travelling mechanism and lower end beams symmetrically arranged above the cart travelling mechanism, wherein two symmetrically arranged level detection devices for detecting the levelness of the lower end beams are fixed at two ends of the top of the lower end beams, adjusting devices for adjusting the levelness of the lower end beams are arranged between two ends of the bottom of the lower end beams and the cart travelling mechanism, and a controller is arranged on the cart travelling mechanism; the adjusting device comprises a lower hinged support fixedly connected to the top end of the cart travelling mechanism, the lower hinged support is hinged with an upper hinged support extending upwards through a pin shaft, the top end of the upper hinged support is fixedly connected with a vertically arranged lower sleeve extending upwards, the bottom end of the lower sleeve is sealed, the top end opening is arranged, a hydraulic oil cylinder extending upwards is fixedly connected to the bottom surface inside the lower sleeve, the top end of the hydraulic oil cylinder is embedded inside the lower end beam, the bottom end of the lower end beam is fixedly connected with an upper sleeve extending downwards, the top end of the upper sleeve is sealed, the bottom end opening is arranged, the upper sleeve is sleeved outside the lower sleeve, the upper sleeve and the lower sleeve are in sliding connection, an electromagnetic control valve is arranged on an oil pipe of the hydraulic oil cylinder, and a position detecting device for detecting, the level detection device, the electromagnetic control valve and the position detection device are all electrically connected with the controller.

The level detection device is an electronic level meter which is electrically connected with the controller.

The position detection device is a grating or an encoder, and the grating and the encoder are electrically connected with the controller.

And a hydraulic oil station is fixed at the top of the lower end beam and is connected with the hydraulic oil cylinder through an oil pipe.

The utility model has the advantages that: the horizontal detection device is matched with the position detection device for use, the horizontal detection device transmits the angle value of the lower end beam to be adjusted to the controller, meanwhile, the position detection device also transmits the height value of the hydraulic oil cylinder to be adjusted to the controller, and after the controller summarizes and compares the two data, the controller comprehensively analyzes the levelness transmitted by the level detection device and the lifting height of the hydraulic oil cylinder transmitted by the position detection device and then adjusts the lifting of the hydraulic oil cylinder, thereby solving the technical problem of large measurement error of a single detection device, ensuring that the information received by the controller is the real levelness of the lower end beam, having high accuracy, improving the leveling accuracy, shortening the leveling time and improving the working efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the connection between the lower end beam and the cart traveling mechanism;

fig. 3 is a control schematic diagram of the present invention.

Reference numerals: the hydraulic oil station comprises a cart traveling mechanism 1, a cart traveling mechanism 2, a lower end beam 3, a level detection device 4, an adjusting device 6, a lower hinged support 7, an upper hinged support 8, a lower sleeve 9, a hydraulic oil cylinder 10, an upper sleeve and a hydraulic oil station 11.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model discloses a cart running gear 1 and symmetry set up the lower extreme roof beam 2 in cart running gear 1 top, the both ends at 2 tops of lower extreme roof beams are fixed with the level detection device 3 that is used for detecting 2 levelness of lower extreme roof beam that the symmetry set up, this embodiment level detection device 3 selectable electron spirit levels, but not limited to electron spirit level, electron spirit level has 10V output or RS485 output. The quantity of electron spirit level is 4, sets up respectively at the left and right sides both ends at 2 tops of two lower extreme roof beams, numbers 4 electron spirit levels, is A electron spirit level, B electron spirit level, C electron spirit level, D electron spirit level respectively. Adjusting devices 4 used for adjusting the levelness of the lower end beam 2 are arranged between the left end and the right end of the bottom of the lower end beam 2 and the cart travelling mechanism 1, and a controller is arranged on the cart travelling mechanism 1. The adjusting device 4 comprises a lower hinged support 6 welded at the top end of the cart travelling mechanism 1, the lower hinged support 6 is hinged with an upper hinged support 7 extending upwards through a pin shaft, the top end of the upper hinged support 7 is fixedly connected with a vertically arranged lower sleeve 8 extending upwards, the bottom end of the lower sleeve 8 is sealed and provided with an opening at the top end, the bottom surface inside the lower sleeve 8 is fixedly connected with a hydraulic oil cylinder 9 extending upwards, the lower end of the lower end beam 2 is provided with a mounting hole, the top end of the hydraulic oil cylinder 9 is fixed in the mounting hole through a flange, the bottom end of the lower end beam 2 is fixedly connected with an upper sleeve 10 extending downwards, the top end of the upper sleeve 10 is sealed and provided with an opening at the bottom end, the upper sleeve 10 is sleeved outside the lower sleeve 8, the upper sleeve 10 is connected with the, plays a certain role in protecting the hydraulic oil cylinder 9 and prevents the hydraulic oil cylinder 9 from moving left and right in the working process. The number of the hydraulic oil cylinders 9 is 4, the hydraulic oil cylinders are respectively arranged at the left end and the right end of the bottoms of the two lower end beams 2, the 4 hydraulic oil cylinders 9 are numbered and respectively comprise an A hydraulic oil cylinder, a B hydraulic oil cylinder, a C hydraulic oil cylinder and a D hydraulic oil cylinder, and the A hydraulic oil cylinder, the B hydraulic oil cylinder, the C hydraulic oil cylinder and the D hydraulic oil cylinder are respectively arranged in one-to-one correspondence with the A electronic level gauge, the B electronic level gauge, the C electronic level gauge and the D electronic level gauge. An A electromagnetic control valve is arranged on an oil pipe of the A hydraulic oil cylinder, a B electromagnetic control valve is arranged on an oil pipe of the B hydraulic oil cylinder, a C electromagnetic control valve is arranged on an oil pipe of the C hydraulic oil cylinder, a D electromagnetic control valve is arranged on an oil pipe of the D hydraulic oil cylinder, a position detection device for detecting the lifting height of the hydraulic oil cylinder 9 is further arranged on the hydraulic oil cylinder 9, the number of the position detection devices is 4, the position detection devices are numbered as A position detection devices, B position detection devices, C position detection devices and D position detection devices, and the A position detection devices, the B position detection devices, the C position detection devices and the D position detection devices are respectively and correspondingly arranged on the A hydraulic oil cylinder, the B hydraulic. The position detecting device described in this embodiment is a grating or an encoder, but is not limited to a grating or an encoder. The electronic level meter, the electromagnetic control valve, the grating or the encoder are all electrically connected with the controller. The top of the lower end beam 2 is fixed with a hydraulic oil station 11, and the hydraulic oil station 11 is connected with the hydraulic oil cylinder 9 through an oil pipe.

The electronic level meter, the electromagnetic control valve, the grating and the encoder described in the embodiment are all the prior art, and the specific structure is not described in detail herein.

As shown in fig. 3, the working principle of the present invention is: the A electronic level meter, the B electronic level meter, the C electronic level meter and the D electronic level meter respectively monitor the levelness of four corners at the top of the lower end beam 2 in real time and transmit data to the controller, meanwhile, the A position detection device, the B position detection device, the C position detection device and the D position detection device respectively monitor the lifting heights of the A hydraulic oil cylinder, the B hydraulic oil cylinder, the C hydraulic oil cylinder and the D hydraulic oil cylinder in real time and transmit data to the controller, the controller collects and compares the received two data, respectively and simultaneously regulating and controlling the electromagnetic control valve A, the electromagnetic control valve B, the electromagnetic control valve C and the electromagnetic control valve D to control the oil inlet/return amount of the hydraulic oil cylinder A, the hydraulic oil cylinder B, the hydraulic oil cylinder C and the hydraulic oil cylinder D, thereby adjusting the lifting of the hydraulic oil cylinder 9 and achieving the purpose of automatically adjusting the levelness of the lower end beam 2. The controller comprehensively analyzes the levelness transmitted by the level detection device 3 and the lifting height of the hydraulic oil cylinder 9 transmitted by the position detection device and then adjusts the lifting of the hydraulic oil cylinder 9, so that the problem of large measurement error of a single detection device is solved, the fact that the information received by the controller is the real levelness of the lower end beam 2 is guaranteed, the accuracy is high, the leveling time is shortened, and the working efficiency is improved. The controller can be connected into a central control human-computer interface, data information can be uploaded to the server through the reader-writer and connected to the alarm, levelness of the crane is remotely monitored through the mobile device, operators can be reminded conveniently in real time, and work efficiency is improved.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides an automatic leveling control system of hoist, includes cart running gear and symmetry and sets up the lower extreme roof beam in cart running gear top, its characterized in that: the two ends of the top of the lower end beam are fixed with symmetrically arranged level detection devices for detecting the levelness of the lower end beam, adjusting devices for adjusting the levelness of the lower end beam are arranged between the two ends of the bottom of the lower end beam and the cart travelling mechanism, and the cart travelling mechanism is provided with a controller; the adjusting device comprises a lower hinged support fixedly connected to the top end of the cart travelling mechanism, the lower hinged support is hinged with an upper hinged support extending upwards through a pin shaft, the top end of the upper hinged support is fixedly connected with a vertically arranged lower sleeve extending upwards, the bottom end of the lower sleeve is sealed, the top end opening is arranged, a hydraulic oil cylinder extending upwards is fixedly connected to the bottom surface inside the lower sleeve, the top end of the hydraulic oil cylinder is embedded inside the lower end beam, the bottom end of the lower end beam is fixedly connected with an upper sleeve extending downwards, the top end of the upper sleeve is sealed, the bottom end opening is arranged, the upper sleeve is sleeved outside the lower sleeve, the upper sleeve and the lower sleeve are in sliding connection, an electromagnetic control valve is arranged on an oil pipe of the hydraulic oil cylinder, and a position detecting device for detecting, the level detection device, the electromagnetic control valve and the position detection device are all electrically connected with the controller.

2. The automatic leveling control system of a crane according to claim 1, wherein: the level detection device is an electronic level meter which is electrically connected with the controller.

3. The automatic leveling control system of a crane according to claim 2, wherein: the position detection device is a grating or an encoder, and the grating and the encoder are electrically connected with the controller.

4. The automatic leveling control system of a crane according to claim 2, wherein: and a hydraulic oil station is fixed at the top of the lower end beam and is connected with the hydraulic oil cylinder through an oil pipe.