CN204565075U - The chuck swelling device of the centrifugal drawbench of ductile iron pipe - Google Patents

Abstract

The utility model relates to a chuck tensioning device of a centrifugal extubation machine for ductile iron pipes, which comprises a chuck seat, a clamping rod, and four tensioning rods. Tightening seat, four tensioning rods are evenly distributed on the outside of the clamping rod, the end of the tensioning rod is fixed with the chuck seat, and the inside of the front end of the tensioning rod is provided with a tensioning groove, and the tensioning seat is snapped into the tensioning groove and mutually anastomosis; the outside of the front end of the tensioning rod is provided with a block. The utility model has a reasonable structural design, and the chuck tensioning device has a good tensioning effect in the ductile iron pipe, is not easy to disengage, is not easy to wear, and improves work efficiency.

Description

Chuck Tensioning Device of Ductile Iron Pipe Centrifugal Pulling Machine

technical field

The utility model relates to a chuck tightening device of a centrifugal extubation machine for ductile iron pipes, which belongs to the technical field of machinery industry.

Background technique

Ductile iron pipes are used in underground water pipes. During production, they are centrifugally poured with rotating molds, and the formed pipes must be pulled out of the molds.

Extubation machines in the prior art are driven by a frequency converter and a motor, and the clamps are opened and reset by a mechanical structure. The disadvantages are: during the drawing process driven by the frequency converter and the motor, due to the large and heavy ductile iron pipe workpiece, it cannot be started and stopped quickly, which affects the work efficiency; the mechanical structure of the fixture is in use, due to the large force of the fixture. Parts are worn out.

Utility model content

The technical problem to be solved by the utility model is to overcome the above-mentioned deficiencies in the prior art, and to design a centrifugal drawing of a ductile iron pipe with a reasonable structure, a good effect of drawing the pipe, and a firm and stable fit between the chuck and the ductile iron pipe workpiece. The chuck tensioning device of the pipe machine.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a chuck tensioning device for a centrifugal extubation machine for ductile iron pipes, which is characterized in that it includes a chuck seat, a clamping rod, four tensioning rods, a clamping rod Inserted into the chuck seat, the front end of the clamp rod is provided with a tension seat, four tension rods are evenly distributed on the outside of the clamp rod, the end of the tension rod is fixed with the chuck seat, and the inside of the front end of the tension rod is provided with a The tightening groove, the tensioning seat snaps into the tensioning groove and coincides with each other; the outside of the front end of the tensioning rod is provided with a locking block. The chuck tensioning device is connected with the extubation device of the ductile iron pipe centrifugal extubation machine. When the collet tensioning device extends into the ductile iron pipe, the extubation device pushes the clamp rod forward, and the tensioning seat stretches the tensioning groove, four A tensioning rod is tightened in the ductile iron pipe for drawing.

The clamping block described in the utility model is installed on the tensioning rod through the clamping seat, the clamping seat is fixed on the tensioning rod through the screw pin, and the clamping block is fixed on the clamping seat. The clamping block is firmly fixed and the tightening effect is good.

The material of the block in the utility model is tungsten steel, which is not easy to wear and prolongs the service life.

The clamping rod of the utility model is provided with a reset claw, and the reset claw is fixed on the top of the clamping rod. The reset claw is provided with four elastic arms, and the four elastic arms respectively press the tops of the four tensioning rods. When the four tensioning rods are stretched outwards, the reset claws are stretched outwards, and the drawing is completed, the chuck tensioning device leaves the ductile iron pipe, and the four tensioning rods reset under the action of the reset claws.

The chuck seat described in the utility model is provided with a lubricating sleeve, and the clamping rod passes through the lubricating sleeve, so that the clamping rod slides smoothly.

Compared with the prior art, the utility model has the following obvious effects: the structural design is reasonable, the chuck tensioning device has a good tensioning effect in the ductile iron pipe, is not easy to disengage, is not easy to wear, and improves work efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the closed structure of the tension rod of the present invention.

Fig. 2 is a schematic diagram of the structure of the utility model after the tension rod is stretched.

FIG. 3 is a schematic structural diagram of the left view of FIG. 1 .

Detailed ways

Below in conjunction with accompanying drawing and through embodiment the utility model is further described.

Example:

Referring to Figures 1 to 3, this embodiment includes a chuck seat 71, a clamping rod 72, and four tensioning rods 73, the clamping rod 72 is inserted into the chucking seat 71, and the front end of the clamping rod 72 is provided with a tensioning seat 74, Four tensioning rods 73 are evenly distributed on the outer side of the clamping rod 72. The ends of the tensioning rods 73 are fixed to the chuck seat 71. The inner side of the front end of the tensioning rod 73 is provided with a tensioning groove 75, and the tensioning seat 74 is snapped into the clamping seat 71. The grooves 75 fit together; the outside of the front end of the tensioning rod 73 is provided with a block 76 .

In this embodiment, the clamping block 76 is mounted on the tensioning rod 73 through the clamping seat 77 , the clamping seat 77 is fixed on the tensioning rod 73 through the screw pin 78 , and the clamping block 76 is fixed on the clamping seat 77 . The clamping block 76 is firmly fixed, and the tightening effect is good.

In this embodiment, the material of the block 76 is tungsten steel, which is not easy to wear and prolongs the service life.

In this embodiment, the clamp rod 72 is provided with a reset claw 79, and the reset claw 79 is fixed on the top of the clamp rod 72. The reset claw 79 is provided with four elastic arms 791, and the four elastic arms 791 press the four tension rods 73 respectively. top. When the four tensioning rods 73 were stretched outwards, the reset claws 79 were stretched outwards, and the drawing was completed.

In this embodiment, a lubricating sleeve 70 is disposed inside the collet seat 71 , and the clamping rod 72 passes through the lubricating sleeve 70 to make the clamping rod 72 slide smoothly.

When in use, the chuck tensioning device is connected with the extubation device of the ductile iron pipe centrifugal extubation machine, the chuck tensioning device extends into the ductile iron pipe, pushes the clamp rod 72 to rotate forward, and the tensioning seat 74 supports the tensioning groove 75 Open, four tensioning rods 73 are tightened in the ductile iron pipe, and draw.

In addition, it should be noted that, in the specific embodiments described in this specification, as long as the specific shape and size of the parts are not specified, the parts can be in any shape and size that is suitable for the structure; at the same time, the names of the parts are It can also be different. All equivalent or simple changes made according to the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent.

Claims (5)

1. A chuck tensioning device for a centrifugal extubation machine for ductile iron pipes, characterized in that it includes a chuck seat, a clamping rod, and four tensioning rods, the clamping rod is inserted into the chucking seat, and the front end of the clamping rod is set There is a tensioning seat, four tensioning rods are evenly distributed on the outside of the clamping rod, the end of the tensioning rod is fixed with the chuck seat, and the inside of the front end of the tensioning rod is provided with a tensioning groove, and the tensioning seat snaps into the tensioning groove And coincide with each other; the outside of the front end of the tension rod is provided with a block. 2. The chuck tensioning device of the centrifugal extubation machine for ductile iron pipes according to claim 1, characterized in that: the clamping block is installed on the tensioning rod through a clamping seat, and the clamping seat is fixed by a screw pin On the tensioning rod, the clamping block is fixed on the clamping seat. 3. The chuck tensioning device of the centrifugal extubation machine for ductile iron pipes according to claim 2, characterized in that: the material of the clamping block is tungsten steel. 4. According to claim 1 or 3, the chuck tensioning device of the centrifugal extubation machine for ductile iron pipes is characterized in that: the clamp rod is provided with a reset claw, the reset claw is fixed on the top of the clamp rod, and the reset claw Four elastic arms are arranged, and the four elastic arms respectively press the tops of the four tensioning rods. 5 . The chuck tensioning device of the centrifugal extubation machine for ductile iron pipes according to claim 4 , wherein a lubricating sleeve is arranged inside the chuck seat, and the clamping rod passes through the lubricating sleeve. 6 .