CN2572180Y - Gas-electricity mixing transmission rotary joint - Google Patents

Abstract

The utility model relates to a gas-electric mixed transmission rotary joint. It contains a rotating body supported by bearings in a fixed housing. There is a turntable at the inner end of the rotating body, and a rotary air pipe joint is installed at the outer end. The rotating air pipe joint is connected to the air passage on the turntable through the central channel of the rotating body; a wiring The column is in pressing contact with the rotating shaft at the end of the rotating body through a pressing mechanism. The utility model transmits gas and electricity to the rotating body in the rotating machine, without causing wires and air pipes to be entangled, and is safe and convenient to use. The utility model is suitable for gas transmission and power transmission of rotating parts in various machines, and is especially suitable for gas transmission and power transmission of robot welding units.

Description

Gas-electric mixed transmission rotary joint

Technical field:

The utility model relates to a gas-electricity mixed transmission rotary joint used for gas and electricity transmission to rotating parts in a rotary machine.

Background technique:

In the prior art, it is often necessary to transmit gas and electricity to the rotating parts in the rotating machinery. For example, in the robot welding unit, the workpiece is fixed on the rotating body for welding, and it is necessary to transmit electricity and inert shielding gas to it. The existing technology is to directly connect the rotating body with the wire and the air pipe. When the rotating body rotates, the wire and the air pipe are entangled, which is inconvenient to use and often causes accidents.

Utility model content:

The purpose of the utility model is to provide a gas-electric mixed transmission rotary joint, which can transmit gas and electricity to the rotating body in the rotary machine without causing wires and gas pipes to be entangled, and is safe and convenient to use.

In order to achieve the above object, the utility model adopts the following technical solutions:

A gas-electric mixed transmission rotary joint, including a rotating body supported by bearings in a fixed housing, is characterized in that the inner end of the rotating body has a turntable, and the outer end is equipped with a rotary air pipe joint, and the rotating air pipe joint passes through the central channel of the rotating body And communicate with the air passage on the turntable; a terminal post is pressed and contacted with the rotating shaft at the end of the rotating body through a pressing mechanism.

The structure of the above-mentioned pressing mechanism can be designed as follows: a fixed seat is connected to the fixed housing, a guide sleeve is fixedly connected to the fixed seat, the guide sleeve is slidably matched with the terminal, the upper end of the terminal is fixedly engaged with an annular collar, a The compression spring is sleeved on the terminal and the two ends are respectively supported on the top surface of the guide sleeve and the lower plane of the clip ring.

The rotating shaft in the middle part of the rotating body is covered with a layer of insulating material, and the electrode plate is embedded on the insulating material layer. The wire is introduced from the end of the rotating body, passes through the axial hole in the rotating body, and then passes through the insulating material layer to connect to the electrode plate; The fixed casing extends to the top of the electrode plate to form a carbon brush fixing plate, and the carbon brush is fixedly installed, and the carbon electrode at the lower end of the carbon brush is pressed into contact with the electrode plate.

The bracket of the above-mentioned fixed housing is fixedly connected with the base pole through the insulating isolation plate.

Compared with the prior art, the utility model has the following obvious features and advantages: the outer end of the rotating body of the utility model has a terminal post that is pressed and contacted, so that the electricity input from the connecting post can be transmitted to the end of the rotating body through the rotating body On the turntable, at the same time, the rotary air pipe joint at the outer end can input gas through the central channel and transport it to the end of the rotating body, so as to realize the gas and electricity mixed transmission, and the wire and air pipe will not be entangled due to the rotation of the rotating body, which is safe and convenient to use. The utility model also realizes the connection between the external wire and the wire in the rotating body through the carbon brush, which can be used to transmit the sensor signal installed on the rotating body to realize automatic production. The utility model is suitable for gas transmission and power transmission to rotating bodies in various rotating machines, and is especially suitable for gas transmission and power transmission of robot welding units.

Description of drawings:

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is a right side view of Fig. 1 .

Detailed ways:

A preferred embodiment of the present utility model is: referring to Fig. 1 and Fig. 2, the gas-electric mixed transmission rotary joint includes a fixed housing 2 which supports a rotating body 1 through a bearing 3, and the inner end of the rotating body 1 has a turntable , and the outer end is equipped with a rotary air pipe joint 8, which is connected to the air passage 15 on the rotating disk through the central channel of the rotating body 1; The structure of the above-mentioned pressing mechanism is: a fixed base 10 is connected to the fixed housing 2, a guide sleeve 11 is fixedly connected to the fixed base 10, the guide sleeve 11 is slidably matched with the terminal 12, and the upper end of the terminal 12 is fixedly engaged with a An annular collar 17, a compression spring 9 is sleeved on the terminal post 12 and the two ends are respectively supported on the top surface of the guide sleeve 11 and the lower plane of the collar 17. A layer of epoxy resin layer 5 is covered on the rotating shaft in the middle of the rotating body 1, and an electrode plate 7 is embedded on the epoxy resin layer 5. The wire 16 is introduced from the inner end of the rotating body 1, passes through the axial hole in the rotating body 1, and then The electrode plate 7 is connected through the epoxy resin layer 5; the fixed shell 2 extends to the top of the electrode plate 7 to form a carbon brush fixing plate 4, and the carbon brush 6 is fixedly installed. The bracket of the above-mentioned fixed housing 2 is fixedly connected with the base pole 14 through the insulating spacer plate 13 . This gas-electricity mixed transmission rotary joint is used in the robot welding unit. The workpiece to be welded is installed on the rotary table at the inner end of the mixed transmission rotary joint through the fixture. The circuit connected to the workpiece is connected to the terminal through the rotary body, and the inert protective gas flows from the rotary gas pipe joint. Input, while the rotary phase sensor signal installed on the workpiece has carbon brush output.

Claims (4)

1. A gas-electric mixed transmission rotary joint, comprising a fixed housing (2) supporting a rotating body (1) through bearings (3), characterized in that the inner end of the rotating body (1) has a turntable, and the outer A rotary air pipe joint (8) is installed at the end, and the rotary air pipe joint (8) communicates with the air passage (15) on the rotary table through the central passage of the rotary body (1); a terminal post (12) is connected to the rotary body ( 1) The rotating shaft at the outer end is pressed into contact. 2. A gas-electric mixed transmission rotary joint according to claim 1, characterized in that the structure of its pressing mechanism is: a fixed seat (10) is connected to the fixed housing (2), and a fixed seat (10) is A guide sleeve (11) is fixedly connected, the guide sleeve (11) is slidingly matched with the terminal (12), the upper end of the terminal (12) is fixedly clamped with an annular collar (17), and a compression spring (9) is set on the terminal On the post (12) and the two ends are respectively supported on the top surface of the guide sleeve (11) and the lower plane of the collar (17). 3. A gas-electric mixed transmission rotary joint according to claim 1, characterized in that a layer of insulating material (5) is covered on the rotating shaft in the middle of the rotating body (1), and electrodes are embedded on the insulating material layer (5) The plate (7), the wire (16) is introduced from the inner end of the rotating body (1), passes through the axial hole in the rotating body (1), and then passes through the insulating material layer (5) to connect the electrode plate (7); the fixed shell The body (2) extends to the top of the electrode plate (7) to form a carbon brush fixing plate (4) and the carbon brush (6) is fixedly installed, and the carbon electrode at the lower end of the carbon brush (6) is pressed into contact with the electrode plate (7). 4. A gas-electricity mixed transmission rotary joint according to claim 1, characterized in that the support of the fixed housing (2) is fixedly connected to the base pole (14) through an insulating isolation plate (13).

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