CN219676587U - Arm code radio frequency identification device of crane arm - Google Patents

Abstract

The utility model discloses an arm sign indicating number radio frequency identification device for discernment single cylinder bolt jib loading boom, arm sign indicating number radio frequency identification device includes read write line and radio frequency electronic tags, the read write line install in on the hydro-cylinder of jib loading boom, radio frequency electronic tags installs on each flexible arm tail of jib loading boom, works as when the plug pin mechanism of jib loading boom aligns with the arm pin on the flexible arm, through the read write line reads the arm sign indicating number of jib loading boom that radio frequency electronic tags stores. The utility model greatly simplifies the structure of the arm code recognition device, reduces the failure rate and improves the reliability.

Description

Arm code radio frequency identification device of crane arm

Technical Field

The utility model relates to a crane, in particular to an arm code radio frequency identification device for identifying a single-cylinder bolt crane arm.

Background

At present, the telescopic in-place detection of the crane boom in China adopts a proximity switch and a wedge block to extrude, the proximity switch is arranged in the wedge block, when the boom is retracted, an installation block on the boom is close to and extrudes with the wedge block, when the crane boom moves to a position where the proximity switch is installed, the proximity switch detects an obstacle and sends a signal to a controller, and motion control is realized. But often the proximity switch and the wedge are deformed and damaged by the extrusion.

Chinese utility model patent CN114105011a discloses: in the crane boom adopting the single-cylinder bolt telescopic mechanism, a cylinder barrel of the oil cylinder is provided with a plug pin mechanism, and the plug pin mechanism is connected with a tail arm pin of a corresponding telescopic boom when the oil cylinder stretches out and draws back, so that the corresponding telescopic boom is connected with the cylinder barrel of the oil cylinder. The crane boom of the crane is provided with a plurality of sections of telescopic arms, and when the oil cylinder stretches, the connection of the cylinder barrel of the oil cylinder with which section of telescopic arm is needed to be determined so as to ensure the operation safety of the crane. And determining which section of telescopic arm is connected with the cylinder barrel of the oil cylinder, namely acquiring an arm code of the crane, wherein the arm code is an important parameter for the operation safety of the crane. The existing crane is realized in a binary coding mode by arranging a plurality of proximity switches to be matched with the sensing blocks, specifically, three proximity switches are installed on a cylinder barrel of an oil cylinder in parallel, and a sensing block is installed at the tail of each telescopic arm. The proximity switches are connected with the controller, the three proximity switches represent three binary systems, the electricity obtained by sensing the three proximity switches and the sensing piece on the sensing block is represented as 1, and the electricity is lost when the sensing piece is located outside the sensing range of the proximity switches, and the electricity is represented as 0. The sensing blocks on the arm tail of each telescopic arm are different in position, for example, the sensing blocks on the sensing block of the arm tail of a first section of telescopic arm correspond to the first proximity switch, the sensing blocks on the sensing block of the arm tail of a second section of telescopic arm correspond to the second proximity switch, the sensing blocks on the sensing block of the arm tail of a third section of telescopic arm correspond to the first proximity switch and the second proximity switch, the sensing blocks on the sensing block of the arm tail of a fourth section of telescopic arm correspond to the third proximity switch, the sensing blocks on the sensing block of the arm tail of a fifth section of telescopic arm correspond to the first proximity switch and the third proximity switch, and the sensing blocks on the sensing block of the arm tail of a sixth section of telescopic arm correspond to the second proximity switch and the third proximity switch; when the cylinder barrel of the oil cylinder is connected with the first section to the sixth section of telescopic arm, the controller correspondingly obtains codes of 001, 010, 011, 100, 101 and 110 through three proximity switches to serve as arm codes of the crane, and the controller determines the connection state of the telescopic arm and the oil cylinder through the arm codes.

However, the above-mentioned existing arm code recognition system has the following disadvantages: a plurality of proximity switches are required to be installed, so that the number is large, faults are easy to occur, and the cost is high; in the application process, the sensing block at the tail of the telescopic boom is deformed by extruding the dovetail groove, so that the sensing block is easy to crush, the detection function is invalid, and the normal telescopic boom cannot be completed due to sensing errors.

Disclosure of Invention

To prior art's defect, the utility model provides an arm sign indicating number radio frequency identification device for discernment single cylinder bolt jib loading boom.

The arm code radio frequency identification device comprises a reader-writer and a radio frequency electronic tag, wherein the reader-writer is arranged on an oil cylinder barrel of the lifting arm, the radio frequency electronic tag is arranged on each telescopic arm tail of the lifting arm, and when an inserting and pulling pin mechanism of the lifting arm is aligned with an arm pin on the telescopic arm, the arm code of the lifting arm stored in the radio frequency electronic tag is read through the reader-writer.

Optionally, the reader comprises a reader housing, a reader circuit board, a reader module and a transmitting antenna assembly; the reader-writer circuit board is connected with the reader-writer module by adopting a wire harness; the reader-writer circuit board is connected with the antenna by adopting a radio frequency line; the system also comprises a control host, wherein the control host is connected with the identification device through a control bus.

The beneficial effects of this novel are: the novel arm code identification device adopts a radio frequency technology, and the arm code is read through a wireless radio frequency without setting a complex proximity sensor, so that the structure of the arm code identification device is greatly simplified, the failure rate is reduced, and the reliability is improved; the radio frequency technology is adopted to conveniently modify the content of the arm code in the radio frequency tag, so that the maintenance of the crane arm is facilitated.

Drawings

FIG. 1 is a schematic diagram of an arm code identification device;

fig. 2 is an electrical schematic diagram of the arm code recognition device.

Detailed Description

In order to make the above objects, features and advantages of the present utility model more comprehensible, the following detailed description of the embodiments accompanied with the accompanying drawings makes the above and other objects, features and advantages of the present utility model more clear. Like reference numerals refer to like parts throughout the several views of the drawings. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the utility model.

The terms and words used in the following description and claims are not limited to written meanings, but are used only by new people to enable a clear and consistent understanding of the present utility model. It will be apparent to those skilled in the art, therefore, that the following descriptions of the various embodiments of the present utility model are provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims and their equivalents.

It should be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a module" includes reference to one or more such modules. The advantages and features of the present utility model and the manner in which the same may be accomplished are more readily understood by reference to the following detailed description of the embodiments and the accompanying drawings. This novel may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

As shown in fig. 1, the arm code identification device of the present utility model can be used to identify the arm code of the single-cylinder bolt boom, where the arm code corresponds to the position of the cylinder barrel of the cylinder, and is used to determine which section of the telescopic arm is aligned with the arm pin on the specific section of the telescopic arm when the pin inserting and extracting operation is performed. The arm code recognition device comprises a reader-writer and an electronic tag, wherein the reader-writer is arranged on a cylinder barrel of the oil cylinder, and the electronic tag is arranged on the arm tail of each telescopic arm.

The utility model adopts a non-contact detection mode to fix the electronic tag at the position of the original proximity switch, replaces the position to be detected with the electronic tag of the plurality of proximity switches, writes the position information of the relevant arm section in the electronic tag, reads the position information of the arm section in the electronic tag when the reader-writer approaches the electronic tag, then transmits the information to the vehicle-mounted host computer to judge the position, and realizes the mode of detecting the position after extrusion in the original scheme.

Referring to fig. 2, the reader includes a reader housing, a reader circuit board, a reader module, and a transmitting antenna assembly. The reader-writer circuit board is connected with the reader-writer module by adopting a wire harness and is connected with the antenna by adopting a radio frequency wire. When the crane arm code stretches out and draws back, the reader reads the label signal when reaching the detection range, and then the relevant information is transmitted to the host computer through the bus signal to make corresponding start/stop actions.

The novel arm code identification device adopts a radio frequency technology, and the arm code is read through a wireless radio frequency without setting a complex proximity sensor, so that the structure of the arm code identification device is greatly simplified; the radio frequency technology is adopted to conveniently modify the content of the arm code in the radio frequency tag, so that the maintenance of the crane arm is facilitated.

Although the technology has been illustrated and described with respect to one or more implementations, alterations and/or modifications may be made to the illustrated examples without departing from the spirit and scope of the appended claims. In particular regard to the various functions performed by the above described components or structures (assemblies, devices, circuits, systems, etc.), the terms (including a reference to a "means") used to describe such components are intended to correspond, unless otherwise indicated, to any component or structure which performs the specified function of the described component (e.g., that is functionally equivalent), even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations. In addition, while a particular feature may have been disclosed with respect to only one of several implementations, such feature may be combined with one or more other features of the other implementations as may be desired and advantageous for any given or particular application. Furthermore, to the extent that the terms "includes," including, "" has, "" containing, "or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term" comprising.

In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The foregoing description is only of a preferred embodiment of the present utility model, which can be embodied in many other forms other than as described herein, and therefore the present utility model is not limited to the specific implementations disclosed above. And that any person skilled in the art may make numerous variations and modifications to the novel solution or modifications to equivalent embodiments using the method and technical content disclosed above, without departing from the scope of the novel solution. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model without departing from the content of the present novel technical solution still falls within the scope of the present novel technical solution.

Claims (5)

1. The arm code radio frequency identification device for identifying the single-cylinder bolt lifting arm is characterized by comprising a reader-writer and a radio frequency electronic tag, wherein the reader-writer is arranged on an oil cylinder barrel of the lifting arm, the radio frequency electronic tag is arranged on each telescopic arm tail of the lifting arm, and when an inserting and pulling pin mechanism of the lifting arm is aligned with an arm pin on the telescopic arm, the arm code of the lifting arm stored in the radio frequency electronic tag is read through the reader-writer.

2. The identification device of claim 1, wherein the reader comprises a reader housing, a reader circuit board, a reader module, and a transmitting antenna assembly.

3. The identification device of claim 2, wherein the reader circuit board is connected to the read/write module using a wiring harness.

4. The identification device of claim 2, wherein the reader circuit board is connected to the antenna using a radio frequency line.

5. The identification device of claim 1, further comprising a control host, the control host being coupled to the identification device via a control bus.