CN218252815U

CN218252815U - Tube drawing mechanism for centrifugal cast tube production

Info

Publication number: CN218252815U
Application number: CN202221667547.3U
Authority: CN
Inventors: 田少宾; 冯永星; 李鹏飞; 胡胜西
Original assignee: Henan Jiuzhou Cast Pipe Technology Co ltd
Current assignee: Henan Jiuzhou Cast Pipe Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-10
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a tube drawing mechanism for centrifugal cast tube production, which comprises a frame, a placing rack and a hydraulic telescopic rod; the tube drawing mechanism for centrifugal cast tube production can realize automatic tube drawing, has high tube drawing efficiency and safety, can improve the flexibility of the clamping plates by adopting gear and rack transmission, and can clamp and fix cast tubes by three synchronously-opened clamping plates; can stretch out and draw back the regulation to splint through pneumatic telescopic rod, the setting of leading wheel can improve the stability of operation, and the constant head tank combines hydraulic telescopic rod's setting can be accepted the cast tube.

Description

Tube drawing mechanism for centrifugal cast tube production

Technical Field

The utility model relates to a centrifugal cast tube processing technology field specifically is a tube drawing mechanism is used in production of centrifugal cast tube.

Background

Cast iron pipes are widely used in water supply and gas transmission pipelines due to their advantages of high strength, good plasticity, strong corrosion resistance, etc. Cast iron pipes are usually produced by hot die coating processes. The hot mold coating method comprises the following general process flows: the heat-insulating coating with a certain thickness is sprayed on the inner surface of a cast pipe die (pipe die for short), and the coating has the effects of prolonging the cooling time of molten iron, eliminating cementite generated by chilling and prolonging the service life of the pipe die. And uniformly pouring molten iron which is qualified in smelting and spheroidizing into a rotary pipe die along with an inoculant, solidifying and forming under the action of centrifugal force, feeding the formed cast pipe into an annealing furnace for low-temperature annealing, and pulling out the cast pipe from the pipe die through a pipe pulling mechanism after the annealing is finished.

The existing cast tube drawing is manually operated by workers, so that the efficiency is low; particularly, because the temperature of the pipe casting mold is higher during pipe drawing, the temperature of the cast pipe is also higher, and workers are easily scalded due to improper operation; meanwhile, when the automatic tube drawing mechanism for producing the partial centrifugal cast tube is used, a tube drawing head of the automatic tube drawing mechanism is easy to clamp a shell after the cast tube is pulled for a long time, so that the production efficiency is influenced.

Disclosure of Invention

The utility model provides a tube drawing mechanism is used in production of centrifugal cast tube can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a tube drawing mechanism for centrifugal cast tube production comprises a rack, a placing rack and a hydraulic telescopic rod; the upper surface of frame is equipped with moving platform, moving platform's lower surface mounting has the link, install the protection casing on the link, install pneumatic telescopic link on the protection casing, pneumatic telescopic link's flexible end is connected with the connecting rod, the connecting rod sets up the inside at the protection casing, the other end of connecting rod is connected with first rack plate, the lateral surface annular equipartition of first rack plate has three bar tooth, first rack plate is connected with the second rack plate through the gear train that sets up at the protection casing medial surface, second rack plate and the constant head tank sliding connection who sets up at protection casing lateral surface tip, install splint on the second rack plate.

Further, the rack sets up in the below of frame, and the upper surface of rack adopts the slope design, and the cast tube is placed on the rack, and hydraulic telescoping rod's quantity is two, and two hydraulic telescoping rod symmetries set up in the left and right sides of rack, and hydraulic telescoping rod's up end is equipped with the constant head tank.

Furthermore, a speed reducer and a motor are installed on the mobile platform, an output shaft of the motor is connected with an input shaft of the speed reducer, an output shaft of the speed reducer is connected with a gear, a rack is installed on the upper surface of the rack, and the rack is meshed with the gear.

Furthermore, the rear end of the upper surface of the moving platform is provided with a guide wheel, the front end of the upper surface of the moving platform is provided with a bearing roller, the upper surface of the rack is provided with a guide rail, and the guide wheel is arranged on the guide rail.

Furthermore, the number of the second rack plates is three, and the three second rack plates are annularly and uniformly distributed around the outer side surface of the protective cover.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the tube drawing mechanism for centrifugal cast tube production can realize automatic tube drawing, has high tube drawing efficiency and safety, can improve the flexibility of the clamping plates by adopting gear rack transmission, and can clamp and fix a cast tube by three synchronously-opened clamping plates;

2. can stretch out and draw back the regulation to splint through pneumatic telescopic rod, the stability of operation can be improved in the setting of leading wheel, and the constant head tank combines hydraulic telescopic rod's setting to accept the cast tube.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is a partially enlarged view of a portion B in fig. 2.

In the figure: the device comprises a rack 1, a positioning groove 2, a hydraulic telescopic rod 3, a placing frame 4, a cast pipe 5, a moving platform 6, a rack 7, a guide rail 8, a guide wheel 9, a conical positioning end 10, a clamping plate 11, a positioning column 12, a protective cover 13, a second rack plate 14, a bearing roller 15, a speed reducer 16, a motor 17, a pneumatic telescopic rod 18, a connecting frame 19, a connecting rod 20, a first rack plate 21 and a gear set 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, if the directional descriptions such as "up", "down", "front", "back", "left", "right", etc. are referred to, the directional or positional relationships indicated are based on the directional or positional relationships shown in fig. 1, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. When a feature is referred to as being "disposed," "secured," or "connected" to another feature, it can be directly disposed, secured, or connected to the other feature or be indirectly disposed, secured, or connected to the other feature.

Referring to fig. 1-4, the present invention provides a technical solution: a tube drawing mechanism for centrifugal cast tube production comprises a rack 1, a placing rack 4 and a hydraulic telescopic rod 3; rack 4 sets up in the below of frame 1, the upper surface of rack 4 adopts the slope design, the one end that rack 4's upper surface is close to frame 1 is higher than the one end that frame 1 was kept away from to the upper surface of rack 4, cast pipe 5 places on rack 4, the quantity of hydraulic telescoping rod 3 is two, two 3 symmetries of hydraulic telescoping rod set up the left and right sides at rack 4, hydraulic telescoping rod 3's up end is equipped with constant head tank 2, can accept the pipe fitting of extracting through constant head tank 2.

The upper surface of frame 1 is equipped with guide roller group, the upper surface of frame 1 is equipped with moving platform 6, moving platform 6's upper surface rear end is equipped with leading wheel 9, leading wheel 9 is used for preventing moving platform 6 off tracking, moving platform 6's upper surface front end is equipped with bearing gyro wheel 15, the upper surface of frame 1 is equipped with guide rail 8, leading wheel 9 sets up on guide rail 8, install reduction gear 16 and motor 17 on the moving platform 6, the output shaft of motor 17 links to each other with reduction gear 16's input shaft, reduction gear 16's output shaft has the gear, the last surface mounting of frame 1 has rack 7, rack 7 and gear engagement, it can moving platform 6's position along the walking of rack 7 to drive the gear through motor 17.

Moving platform 6's lower surface mounting has link 19, install protection casing 13 on the link 19, the left end middle part of protection casing 13 is equipped with reference column 12, the tip of reference column 12 is equipped with toper location end 10, install pneumatic telescopic rod 18 on the protection casing 13, pneumatic telescopic rod 18's flexible end is connected with connecting rod 20, connecting rod 20 sets up the inside at protection casing 13, the other end of connecting rod 20 is connected with first rack plate 21, the lateral surface annular equipartition of first rack plate 21 has three bar tooth, first rack plate 21 is connected with second rack plate 14 through the gear train 22 that sets up at protection casing 13 medial surface, second rack plate 14 and the 2 sliding connection of constant head tank that set up at protection casing 13 lateral surface tip, install splint 11 on second rack plate 14, the quantity of second rack plate 14 is three, three second rack plate 14 annular equipartition is around the lateral surface of protection casing 13.

When in use: during tube drawing, it is rotatory to drive the gear by motor 17 work, the gear is walked along rack 7, insert splint 11 in cast tube 5, pneumatic telescopic link 18 extension promotes first rack board 21 and removes, first rack board 21 pushes out second rack board 14 through gear train 22, second rack board 14 drives splint 11 and carries out the centre gripping to the inner wall of pipe fitting, after the centre gripping is accomplished, motor 17 work is extracted cast tube 5, cast tube extracts the back, drive hydraulic telescoping rod 3 by outside linear electric motor and remove, move hydraulic telescoping rod 3 to cast tube 5 below, hydraulic telescoping rod 3 extension lifts up constant head tank 2, lift up the pipe fitting by constant head tank 2, after the completion of lifting, outside linear electric motor drives hydraulic telescoping rod 3 and removes, can place the pipe fitting on rack 4 through hydraulic telescoping rod 3.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a centrifugal cast tube production is with tube drawing mechanism which characterized in that: comprises a frame (1), a placing rack (4) and a hydraulic telescopic rod (3); the upper surface of frame (1) is equipped with moving platform (6), the lower surface mounting of moving platform (6) has link (19), install protection casing (13) on link (19), install pneumatic telescopic rod (18) on protection casing (13), the flexible end of pneumatic telescopic rod (18) is connected with connecting rod (20), connecting rod (20) set up the inside in protection casing (13), the other end of connecting rod (20) is connected with first rack plate (21), the lateral surface annular equipartition of first rack plate (21) has three bar tooth, first rack plate (21) are connected with second rack plate (14) through gear train (22) that set up at protection casing (13) medial surface, second rack plate (14) with set up the constant head tank sliding connection at protection casing (13) lateral surface tip, install splint (11) on second rack plate (14).

2. The tube drawing mechanism for centrifugally casting the tube according to claim 1, wherein: the rack (4) is arranged below the rack (1), the upper surface of the rack (4) is designed to be a slope, the number of the hydraulic telescopic rods (3) is two, the two hydraulic telescopic rods (3) are symmetrically arranged on the left side and the right side of the rack (4), and the upper end face of each hydraulic telescopic rod (3) is provided with a positioning groove (2).

3. The tube drawing mechanism for centrifugally casting the tube according to claim 1, wherein: a speed reducer (16) and a motor (17) are mounted on the moving platform (6), an output shaft of the motor (17) is connected with an input shaft of the speed reducer (16), an output shaft of the speed reducer (16) is connected with a gear, a rack (7) is mounted on the upper surface of the rack (1), and the rack (7) is meshed with the gear.

4. The tube drawing mechanism for centrifugally casting the tube according to claim 1, wherein: the rear end of the upper surface of the moving platform (6) is provided with a guide wheel (9), the front end of the upper surface of the moving platform (6) is provided with a bearing roller (15), the upper surface of the rack (1) is provided with a guide rail (8), and the guide wheel (9) is arranged on the guide rail (8).

5. The tube drawing mechanism for centrifugally casting the tube according to claim 1, wherein: the number of the second rack plates (14) is three, and the three second rack plates (14) are annularly and uniformly distributed around the outer side surface of the protective cover (13).