Steel tube rolling mill

Abstract

The utility model relates to the technical field of steel pipe production, in particular to a steel pipe rolling mill, which processes a hollow billet through a pipe rolling device, cleans the pipe rolling device through a cleaning device, reduces the influence of sundries on the processing precision of equipment, cleans residual lubricating oil on a pipeline through a scraping device, and improves the production efficiency. The practicability of the device is improved; comprising a rack, a hydraulic cylinder and a core rod, the hydraulic cylinder is horizontally installed on the left end face of the rack, and the core rod is connected to the moving end of the hydraulic cylinder; comprising a pipe rolling device, a cleaning device and a scraping device, the pipe rolling device is installed on a rack, the cleaning device is installed on the pipe rolling device, and the scraping device is installed on the pipe rolling device.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe production, in particular to a steel pipe rolling mill. Background Art

[0002] The cyclic tube mill, also known as the pilger mill, is a hot rolling mill with a variable cross-section round hole. It uses the cyclic rolling method to feed the rough tube in sections for processing. This tube mill is mainly used to produce large diameter, medium and thick wall tubes and special-shaped tubes. It can even use its forging characteristics to produce alloy steel tubes; its working principle is to roll the rough tube through a variable diameter and variable width rolling groove with a slightly tapered long mandrel.

[0003] The Chinese utility model patent with application number CN202320903867.2 in the prior art involves a steel pipe cold rolling machine, including a fixed seat, a rotating ring, a rotating brush, a dust hood, a dust collection box, and a powerful fan, etc., which can ensure that dust and impurities will not be mixed with the steel pipe when the steel pipe is cold rolled, and prevent the dust and impurities attached to the surface of the steel pipe from being cold rolled into the steel pipe, affecting the quality of the steel pipe.

[0004] However, in actual use, the rotating brush of the above device needs to be cleaned regularly, and the bristles of the rotating brush may fall off during use, which increases the labor intensity of the operator. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a steel pipe rolling mill which processes rough pipes through a pipe rolling device, cleans the pipe rolling device through a cleaning device, reduces the influence of debris on the processing accuracy of the equipment, cleans the residual lubricating oil on the pipe through a scraping device, and improves the practicality of the device.

[0006] The utility model discloses a steel pipe rolling mill, comprising a frame, a hydraulic cylinder and a mandrel, wherein the hydraulic cylinder is horizontally mounted on the left end surface of the frame, and the mandrel is connected to the movable end of the hydraulic cylinder; the utility model comprises a pipe rolling device, a cleaning device and a scraping device, wherein the pipe rolling device is mounted on the frame, the cleaning device is mounted on the pipe rolling device, and the scraping device is mounted on the pipe rolling device; the rough pipe is processed by the pipe rolling device, and the pipe rolling device is cleaned by the cleaning device, so as to reduce the influence of sundries on the processing accuracy of the equipment, and the residual lubricating oil on the pipe is cleaned by the scraping device, so as to improve the practicability of the device.

[0007] Preferably, the tube rolling device comprises a processing box, a support plate, a rolling frame, a special-shaped roller, a gear, a reducer and a motor. The processing box is installed on the upper end surface of the frame, and a group of circular holes are respectively arranged on the left end surface and the right end surface of the processing box. Two groups of support plates are horizontally installed in the processing box, and the two groups of support plates are respectively located on the front and rear sides of the circular holes of the processing box. Teeth are arranged on the upper and lower end surfaces of the support plates. A group of gears are respectively installed on the upper and lower parts of the front and rear parts of the rolling frame. The upper and lower groups of gears on the same side of the rolling frame are respectively meshed and connected with the teeth on the front and rear groups of support plates. The support plates Two groups of special-shaped rollers are installed in the upper and lower parts of the middle part, and the mandrel is located between the two groups of special-shaped rollers. A group of reducers are installed on the upper and lower parts of the front end surface of the rolling frame respectively. An electric motor is installed on the reducer, and the output end of the reducer passes through the rolling frame and is connected to the gears at the corresponding position; when the electric motor is turned on, the power is transmitted to the respectively connected gears through the reducer to drive the gears to rotate on the support plate, thereby driving the special-shaped rollers on the rolling frame to roll the rough pipe on the mandrel, and the horizontal movement process of the rolling frame is limited by two groups of support plates, thereby improving the stability of the device processing.

[0008] Preferably, the cleaning device includes a hydraulic oil tank, an oil pump and an oil spray head. The hydraulic oil tank and the oil pump are installed on the upper end surface of the processing box, the input end of the oil pump is connected to the inside of the hydraulic oil tank, and a group of oil spray heads are respectively installed on the upper and lower right end surfaces of the rolling frame, and the output end of the oil pump is connected to the two groups of oil spray heads through a hose; the oil pump is turned on to extract the lubricating oil in the hydraulic oil tank and pressurize it into the oil spray heads, and the oil is sprayed from the upper and lower groups of oil spray heads onto the upper surfaces of the upper and lower groups of special-shaped rollers, so as to clean the surfaces of the special-shaped rollers and reduce the influence of debris adhered to the surfaces of the special-shaped rollers on the equipment processing.

[0009] Preferably, it also includes a hot air blower, an annular tube and a nozzle. The hot air blower is installed on the upper part of the right end surface of the processing box, and the annular tube is installed on the middle part of the right end surface of the processing box through a bracket. Multiple groups of nozzles are installed on the inner side surface of the annular tube. The core rod passes through the middle part of the annular tube, and the output end of the hot air blower is connected to the multiple groups of nozzles. The hot air blower is turned on to heat the air and send it into the multiple groups of nozzles, which are sprayed onto the surface of the steel pipe by the multiple groups of nozzles to heat the lubricating oil on the surface of the steel pipe, reduce the viscosity of the lubricating oil, and make the lubricating oil slide from the pipe, thereby reducing the amount of residual lubricating oil on the surface of the steel pipe and improving the practicability of the device.

[0010] Preferably, the scraping device includes an annular groove, a rectangular limiting groove, an annular chuck and a rubber ring. An annular groove is opened on the inner side surface of the circular hole on the right end face of the processing box, and a group of rectangular limiting grooves are respectively arranged on the upper and lower front end faces of the annular groove. Two groups of blocks are symmetrically arranged on the side faces of the annular chuck, and a rubber ring is installed on the inner side face of the annular chuck. By placing the annular chuck into the annular groove, the rubber ring scrapes off the lubricating oil remaining on the surface of the steel pipe, thereby reducing the amount of lubricating oil remaining on the surface of the steel pipe and improving the practicability of the device.

[0011] Preferably, it also includes a magnet, and the annular groove is equipped with a magnet; the magnet adsorbs the block on the annular chuck to prevent the annular chuck from vibrating and falling off due to equipment processing, thereby improving the practicability of the device.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the rough pipe is processed by the pipe rolling device, the pipe rolling device is cleaned by the cleaning device, the influence of debris on the processing accuracy of the equipment is reduced, and the residual lubricating oil on the pipe is cleaned by the scraping device, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the first cross-sectional structure of the utility model;

[0015] Figure 3 It is a second cross-sectional structural schematic diagram of the utility model;

[0016] Figure 4 It is a second axonometric structural schematic diagram of the utility model;

[0017] Figure 5 It is a partial enlarged structural schematic diagram of the utility model;

[0018] Markings in the attached drawings: 1. frame; 2. hydraulic cylinder; 3. mandrel; 4. processing box; 5. support plate; 6. rolling frame; 7. special-shaped roller; 8. gear; 9. reducer; 10. motor; 11. hydraulic oil tank; 12. oil pump; 13. oil spray head; 14. hot air blower; 15. annular pipe; 16. spray head; 17. annular groove; 18. rectangular limit groove; 19. annular chuck; 20. rubber ring; 21. magnet. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The pipe rolling device is installed on the frame 1, the cleaning device is installed on the pipe rolling device, and the scraping device is installed on the pipe rolling device;

[0022] First, insert the steel pipe on the mandrel 3, then turn on the motor 10 to transmit power to the respective connected gears 8 through the reducer 9 to drive the gears 8 to rotate on the support plate 5, thereby driving the special-shaped rollers 7 on the rolling frame 6 to roll the rough pipe on the mandrel 3; during the processing, turn on the oil pump 12 to extract the lubricating oil in the hydraulic oil tank 11 and pressurize it to the oil spray head 13, and the upper and lower groups of oil spray heads 13 spray it onto the upper surfaces of the upper and lower groups of special-shaped rollers 7 to clean the surface of the special-shaped rollers 7; and turn on the hot air blower 14 to heat the air and send it to multiple groups of spray heads 16, and the multiple groups of spray heads 16 spray it onto the surface of the steel pipe, heat the lubricating oil on the surface of the steel pipe, reduce the viscosity of the lubricating oil, and make the lubricating oil slide from the pipeline, and finally use the rubber ring 20 to scrape off the residual lubricating oil on the surface of the steel pipe;

[0023] The tube rolling device includes a processing box 4, a support plate 5, a rolling frame 6, a special-shaped roller 7, a gear 8, a reducer 9 and a motor 10. The processing box 4 is installed on the upper end surface of the frame 1. The left end surface and the right end surface of the processing box 4 are respectively provided with a group of circular holes. Two groups of support plates 5 are horizontally installed in the processing box 4. The two groups of support plates 5 are respectively located at the front and rear sides of the circular hole of the processing box 4. Teeth are arranged on the upper and lower end surfaces of the support plates 5. A group of gears 8 are respectively installed on the upper and lower parts of the front part and the upper and lower parts of the rear part of the rolling frame 6. The upper and lower groups of gears 8 on the same side of the rolling frame 6 are respectively meshed and connected with the teeth on the front and rear groups of the support plates 5. Two groups of special-shaped rollers 7 are installed on the upper and lower parts of the middle part of the support plate 5. The mandrel 3 is located between the upper and lower groups of special-shaped rollers 7. A group of reducers 9 are respectively installed on the upper and lower parts of the front end surface of the rolling frame 6. The motor 10 is installed on the reducer 9. The output end of the reducer 9 passes through the rolling frame 6 and is connected with the gear 8 at the corresponding position;

[0024] The cleaning device includes a hydraulic oil tank 11, an oil pump 12 and an oil spray head 13. The hydraulic oil tank 11 and the oil pump 12 are installed on the upper end surface of the processing box 4. The input end of the oil pump 12 is connected to the inside of the hydraulic oil tank 11. A group of oil spray heads 13 are respectively installed on the upper and lower right end surfaces of the rolling stand 6. The output end of the oil pump 12 is connected to the two groups of oil spray heads 13 through a hose.

[0025] The processing box 4 further comprises a hot air blower 14, an annular tube 15 and an air jet 16. The hot air blower 14 is installed on the upper part of the right end surface of the processing box 4. The annular tube 15 is installed on the middle part of the right end surface of the processing box 4 through a bracket. Multiple groups of air jets 16 are installed on the inner side of the annular tube 15. The core rod 3 passes through the inner middle part of the annular tube 15. The output end of the hot air blower 14 is connected to the multiple groups of air jets 16.

[0026] The scraping device includes an annular groove 17, a rectangular limiting groove 18, an annular chuck 19 and a rubber ring 20. An annular groove 17 is opened on the inner side of the circular hole on the right end face of the processing box 4. A group of rectangular limiting grooves 18 are respectively arranged on the upper and lower front ends of the annular groove 17. Two groups of blocks are symmetrically arranged on the side of the annular chuck 19. A rubber ring 20 is installed on the inner side of the annular chuck 19.

[0027] It also includes a magnet 21, and the magnet 21 is installed in the annular groove 17;

[0028] The rough pipe is processed by the pipe rolling device, and the pipe rolling device is cleaned by the cleaning device to reduce the influence of debris on the processing accuracy of the equipment. The residual lubricating oil on the pipe is cleaned by the scraping device, which improves the practicality of the device.

[0029] The hydraulic oil tank 11, oil pump 12, hot air blower 14, reducer 9 and motor 10 of a steel tube rolling mill of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steel tube rolling mill; characterized in that, The invention comprises a pipe rolling device, a cleaning device and a scraping device. The pipe rolling device is mounted on a frame (1), the cleaning device is mounted on the pipe rolling device, and the scraping device is mounted on the pipe rolling device. The cleaning device comprises a hydraulic oil tank (11), an oil pump (12) and an oil spray head (13). The hydraulic oil tank (11) and the oil pump (12) are mounted on the upper end surface of the processing box (4). The input end of the oil pump (12) is connected to the inside of the hydraulic oil tank (11). A group of oil spray heads (13) are respectively mounted on the upper and lower right end surfaces of the rolling frame (6). The output end of the oil pump (12) is connected to two groups of oil spray heads (13) through a hose; the scraping device comprises an annular groove (17), a rectangular limiting groove (18), an annular chuck (19) and a rubber ring (20); an annular groove (17) is opened on the inner side of the circular hole on the right end face of the processing box (4); a group of rectangular limiting grooves (18) are respectively arranged on the upper and lower front ends of the annular groove (17); two groups of clamping blocks are symmetrically arranged on the side of the annular chuck (19); and a rubber ring (20) is installed on the inner side of the annular chuck (19).

2. A steel tube rolling mill according to claim 1, characterized in that: The tube rolling device comprises a processing box (4), a support plate (5), a rolling stand (6), a special-shaped roller (7), a gear (8), a reducer (9) and a motor (10). The processing box (4) is installed on the upper end surface of the frame (1). The left end surface and the right end surface of the processing box (4) are respectively provided with a group of circular holes. Two groups of support plates (5) are horizontally installed in the processing box (4). The two groups of support plates (5) are respectively located at the front and rear sides of the circular holes of the processing box (4). The upper and lower end surfaces of the support plates (5) are both provided with teeth. The front upper part of the rolling stand (6) is provided with a plurality of support plates (5). A group of gears (8) are respectively installed at the upper and lower parts of the lower and rear parts. The upper and lower groups of gears (8) on the same side of the rolling frame (6) are respectively meshed with the teeth on the front and rear groups of support plates (5). Two groups of special-shaped rollers (7) are installed at the upper and lower parts of the middle part of the support plate (5). The mandrel (3) is located between the upper and lower groups of special-shaped rollers (7). A group of reducers (9) are respectively installed at the upper and lower parts of the front end surface of the rolling frame (6). An electric motor (10) is installed on the reducer (9). The output end of the reducer (9) passes through the rolling frame (6) and is connected to the gears (8) at the corresponding position.

3. A steel tube rolling mill according to claim 2, characterized in that: The invention also comprises a hot air blower (14), an annular tube (15) and an air jet head (16). The hot air blower (14) is installed at the upper part of the right end surface of the processing box (4). The annular tube (15) is installed at the middle part of the right end surface of the processing box (4) through a bracket. A plurality of groups of air jet heads (16) are installed on the inner side surface of the annular tube (15). The core rod (3) passes through the inner middle part of the annular tube (15). The output end of the hot air blower (14) is connected to the plurality of groups of air jet heads (16).

4. A steel tube rolling mill according to claim 3, characterized in that: It also includes a magnet (21), and the magnet (21) is installed in the annular groove (17).

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