Clay gun machine with positioning module having isolation transmission function

Abstract

The utility model discloses a clay gun machine with a positioning module having an isolation transmission function, which comprises a clay gun machine body, the clay gun machine body is provided with a big arm, the big arm is provided with an encoder and the positioning module, the positioning module is electrically connected with the encoder, the positioning module is used for detecting the position of the big arm in real time, and the clay gun machine is further provided with an electrical isolation module. The electrical isolation module is connected in series between the positioning module and the encoder, the electrical isolation module adopts an optical coupler converter, and rapid switching of the positioning module is realized through the optical coupler converter, so that current transmission of the positioning module is isolated; according to the utility model, the electrical isolation module is arranged, so that the short-circuit burning loss of the positioning module caused by splashing iron flowers during the operation of the clay gun machine is avoided, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mud gun machine maintenance, in particular to a mud gun machine with a positioning module having an isolation transmission function. Background Art

[0002] Mud cannon machines and opening machines are the most basic process equipment in front of the furnace. In order to achieve remote one-button control, it is necessary to install encoders and positioning modules on the mud cannon machines, so that their position information can be accurately detected in real time. At the same time, some communication facilities are installed to establish a connection between the on-site mud cannon machines and the remote control center. However, the iron flowers splashed by the mud cannon machines or opening machines during operation can easily cause the positioning modules to short-circuit and burn, resulting in the failure of the one-button control function and affecting normal production. The existing positioning modules generally use FM351 modules, which are imported products with a unit price of about 4,000 yuan, and the stocking period is more than three months, making it difficult for the supply chain to keep up.

[0003] The connection between the front D-type port of the FM351 module and the encoder is as follows Figure 3 As shown in the figure, the D-type port has 15 pins in total. Only 6 pins need to be led out to the wiring terminal to connect with the encoder cable. The functions of each pin in the figure are shown in the following table:

[0004]

[0005] In actual production, the short circuit of the positioning module is usually divided into the following three situations: 1. The 24V power line is short-circuited. When the positive and negative poles of the 24V power line are short-circuited, a large short-circuit current will be generated, and the encoder power supply is taken from the positioning module. The internal circuit board will carry this fault short-circuit current and directly damage the FM351 module; 2. The 24V power supply is connected in series with the clock pulse circuit. When the 24V power line and the clock pulse circuit are short-circuited, the 24V voltage will be connected in series with the 5V clock signal circuit, breaking down the related circuit board chip and causing damage to the FM351 module; 3. The 24V power supply is connected in series with the data pulse circuit. When the 24V power line and the data pulse circuit are short-circuited, the 24V voltage will be connected in series with the 5V data signal circuit, breaking down the related circuit board chip and causing damage to the FM351 module. Utility Model Content

[0006] The purpose of the utility model is to solve the problems raised in the above-mentioned background technology and to provide a mud gun machine having a positioning module with an isolation transmission function, so as to prevent the burning of the FM351 module due to a short circuit as much as possible.

[0007] The specific technical scheme of the utility model is as follows: a mud cannon machine having a positioning module with an isolation transmission function, comprising a mud cannon machine body, the mud cannon machine body being provided with a large arm, an encoder and a positioning module being mounted on the large arm, the positioning module being electrically connected to the encoder, the positioning module being used to detect the position of the large arm in real time, and also being provided with an electrical isolation module, the electrical isolation module being connected in series between the positioning module and the encoder, the electrical isolation module adopting an optocoupler converter, the optocoupler converter being used to realize rapid switching of the positioning module, thereby isolating the current transmission of the positioning module.

[0008] Preferably, the optical coupler converter, the positioning module and the encoder are all connected to the same 24V DC power supply.

[0009] Preferably, the positioning module adopts an FM351 module, the optocoupler converter adopts a DST-1R2P-D optocoupler converter, and the encoder model is AVM58-0.

[0010] Preferably, the clock pulse of the FM351 module first passes through the electrical isolation module before reaching the encoder, and the data pulse returned from the encoder first passes through the electrical isolation module before reaching the FM351 module.

[0011] The beneficial effects of the utility model are as follows: by setting the electrical isolation mode, the probability of the positioning module FM351 module burning out is greatly reduced, and the corresponding maintenance and replacement costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the functional block diagram of the optical coupler converter DST-1R2P-D of the utility model;

[0013] Figure 2 This is a wiring schematic diagram between the optical coupling converter, the positioning module and the encoder of the utility model;

[0014] Figure 3 It is a schematic diagram of the connection between the positioning module and the encoder in the prior art. DETAILED DESCRIPTION

[0015] See also Figure 1-2 The present embodiment provides a mud gun machine having a positioning module with an isolation transmission function, including a mud gun machine body, the mud gun machine body is provided with a large arm, an encoder and a positioning module are mounted on the large arm, the positioning module is electrically connected to the encoder, the positioning module is used to detect the position of the large arm in real time, and an electrical isolation module is also provided, the electrical isolation module is connected in series between the positioning module and the encoder, the electrical isolation module adopts an optocoupler converter, and the positioning module is quickly switched on and off through the optocoupler converter, thereby isolating the current transmission of the positioning module.

[0016] Preferably, the optical coupler converter, the positioning module and the encoder are all connected to the same 24V DC power supply.

[0017] Preferably, the positioning module adopts an FM351 module, the optocoupler converter adopts a DST-1R2P-D optocoupler converter, and the encoder model is AVM58-0.

[0018] Preferably, the clock pulse of the FM351 module first passes through the electrical isolation module before reaching the encoder, and the data pulse returned from the encoder first passes through the electrical isolation module before reaching the FM351 module.

[0019] The working principle of the utility model is as follows: when the flying iron sparks on site cause the 24V power line and the clock pulse circuit to be short-circuited, the DST-1R2P-D optocoupler converter can automatically cut off the loop between the FM351 module, thereby preventing the 24V voltage from being series-connected to the 5V clock signal loop and causing breakdown of related circuit board chips, causing damage to the FM351 module; when the 24V power line and the data pulse circuit are short-circuited, the DST-1R2P-D optocoupler converter can also automatically cut off the loop between the FM351 module, thereby preventing the 24V voltage from being series-connected to the 5V data signal loop and causing breakdown of related circuit board chips, causing damage to the FM351 module.

[0020] The DST-1R2P-D optocoupler converter in this embodiment is a fast switching component, and its speed can reach 2 MHz, which can fully meet the requirement of fast disconnection of the circuit.

[0021] Since the FM351 module and the AVM58-0 encoder both use differential signals, the input and output ends of the DST-1R2P-D optocoupler converter used in the utility model are both differential signals, and the signal processing meets the requirements.

[0022] The DST-1R2P-D optocoupler converter is supplied by a domestic electronics manufacturer in Shenzhen. There are also manufacturers that can supply similar products, and the quoted price is only 40.8 yuan. It has a low price and a fast and reliable supply chain, which can meet the spare parts needs.

Claims

1. A mud cannon machine with a positioning module having an isolation transmission function, comprising a mud cannon machine body, the mud cannon machine body is provided with a large arm, an encoder and a positioning module are mounted on the large arm, the positioning module is electrically connected to the encoder, and the positioning module is used to detect the position of the large arm in real time, characterized in that: An electrical isolation module is also provided, which is connected in series between the positioning module and the encoder. The electrical isolation module adopts an optical coupling converter, and the optical coupling converter is used to realize rapid switching of the positioning module, thereby isolating the current transmission of the positioning module.

2. According to claim 1, a mud gun machine having a positioning module with an isolation transmission function, characterized in that: The optical coupler converter, the positioning module and the encoder are all connected to the same 24V DC power supply.

3. According to claim 2, a mud gun machine having a positioning module with an isolation transmission function, characterized in that: The positioning module adopts the FM351 module, the optical coupler converter adopts the DST-1R2P-D optical coupler converter, and the encoder model is AVM58-0.

4. The mud gun machine with a positioning module having an isolation transmission function according to claim 3, characterized in that: The clock pulse of the FM351 module first passes through the electrical isolation module before reaching the encoder, and the data pulse returned from the encoder first passes through the electrical isolation module before reaching the FM351 module.

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