Pipe winding machine for exhaust structure of marine steam turbine

Abstract

A pipe winding machine for an exhaust structure of a marine steam turbine relates to the technical field of pipe winding equipment and comprises a workbench, a horizontally-arranged winding tool is rotatably arranged on the workbench, a movable workbench is slidably arranged on one side of the winding tool in the axial direction of the winding tool, a guide block is fixed to the movable workbench, and a guide hole is formed in the guide block. A winding pipe fixing hole is formed in the winding tool. The pipe winding device solves the problems that in the steel pipe winding process of a pipe winding device in the prior art, the human participation degree is high, the limitation of the operation technology level of workers is limited, the consistency of pipe winding precision of the same batch cannot be guaranteed, the pipe winding time is long, and time and labor are wasted.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe winding equipment, in particular to a pipe winding machine. Background Art

[0002] At present, steam power systems are still the main power source for large ships, and they play an important role in converting the heat energy released by fuel combustion into propulsion energy and self-use electricity for ships. Among them, spiral tubes and electric heating wire outer sleeves are often used in the exhaust structure of marine steam turbines.

[0003] When producing and processing spiral tubes, heating wire outer sleeves and other structures, a tube winding machine is usually required. The tube winding machine extrude and push stainless steel tubes in good straight state, but the existing tube winding machines are too expensive and require manual feeding.

[0004] As the existing devices are used, their shortcomings are gradually exposed, mainly in the following aspects:

[0005] In the process of steel pipe winding, the existing pipe winding device has a high degree of human participation and is limited by the workers' operating technical level. It is impossible to ensure the consistency of the winding accuracy of the same batch, and the winding time is long, time-consuming and labor-intensive.

[0006] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] In view of the defects in the prior art, the utility model solves the problems that the traditional pipe winding device has a high degree of human participation in the steel pipe winding process, is limited by the workers' operating technical level, cannot ensure the consistency of the winding accuracy of the same batch, and takes a long time and is time-consuming and labor-intensive.

[0008] In order to solve the above problems, the utility model provides the following technical solutions:

[0009] A pipe winding machine for a marine steam turbine exhaust structure comprises a workbench on which a horizontally arranged winding tool is rotatably arranged.

[0010] A movable workbench is provided on one side of the winding tool for sliding along its axial direction, a guide block is fixed on the movable workbench, a guide hole is opened on the guide block, and a winding tube fixing hole is provided on the winding tool.

[0011] As an optimized solution, a rotating table is provided on the movable workbench for horizontal rotation, and the guide block is fixed to the top of the rotating table by a chuck.

[0012] As an optimized solution, the lower end of the rotating table is mounted on the movable workbench by means of a hand-cranked slide, and the hand-cranked slide adjusts the radial distance between the rotating table and the winding tooling.

[0013] As an optimized solution, a three-jaw chuck and a sliding head are arranged in parallel on the workbench, one end of the winding tool is clamped on the three-jaw chuck, and the other end is against the head.

[0014] As an optimized solution, a pin is rotatably provided on the ejector head, and a central groove matching the pin is provided on one end of the winding tool.

[0015] As an optimized solution, a guide rail is horizontally fixed on the workbench, and the lower end of the mandrel is slidably mounted on the guide rail by a locking device.

[0016] As an optimized solution, a main feed screw is horizontally rotatable on the workbench, the movable workbench is threadedly connected to the main feed screw, and a main feed servo motor that drives the main feed screw to rotate is also fixedly connected to the workbench.

[0017] As an optimized solution, a slide seat slidably mounted on the guide rail is fixedly connected to the movable workbench.

[0018] As an optimized solution, a reducer and a servo motor for driving the three-jaw chuck to rotate are fixedly connected to the workbench, and the servo motor is connected to the power input end of the reducer through a belt drive.

[0019] As an optimized solution, a tooling bracket is provided on the upper surface of the workbench.

[0020] As an optimized solution, a control panel and a distribution box are also provided on the workbench.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. This invention can realize the spiral winding of steel pipes. The device reduces manual participation, improves the precision control of pipe winding in the same batch, and greatly reduces the time of pipe winding;

[0023] 2. Reduce the labor intensity of employees, keep the on-site environment clean and tidy, and improve the work happiness index of employees;

[0024] 3. The operation of the equipment is simple, which is convenient for employees to use and reduces learning costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0026] Figure 1 It is a structural schematic diagram of the utility model.

[0027] In the figure: 1-workbench; 2-winding tooling; 3-movable workbench; 4-rotating table; 5-guide block; 6-chuck; 7-rotating knob; 8-hand slide; 9-adjusting handwheel; 10-three-jaw chuck; 11-thrust head; 12-thrust pin; 13-adjusting claw; 14-guide rail; 15-locking device; 16-main feed screw; 17-main feed servo motor; 18-tooling bracket; 19-reducer; 20-servo motor; 21-belt protection cover; 22-control panel; 23-distribution box; 24-winding tube fixing hole; 25-slide seat. DETAILED DESCRIPTION

[0028] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0029] like Figure 1 As shown, the pipe winding machine for the exhaust structure of a marine steam turbine comprises a workbench 1, on which a horizontally arranged winding tool 2 is rotatably provided.

[0030] A movable workbench 3 is provided on one side of the winding tool 2 for sliding along its axial direction. A guide block 5 is fixed on the movable workbench 3 . A guide hole is provided on the guide block 5 . A winding tube fixing hole 24 is provided on the winding tool 2 .

[0031] A guide hole is provided on the guide block 5, through which the steel pipe to be wound passes, and one side of the steel pipe to be wound is inserted into the winding pipe fixing hole, and the steel pipe to be wound is bent and fixed (it can be done manually or by rotating it once to fix the position).

[0032] A rotating table 4 is horizontally rotatably provided on the movable workbench 3 , and a guide block 5 is fixed to the top of the rotating table 4 by a clamp 6 .

[0033] The chuck 6 includes two plates arranged in parallel up and down, a connecting column is fixedly connected between the center positions of the two plates, the lower plate is fixedly connected to the rotating table 4, and the upper plate is threadedly connected with a plurality of bolts around the connecting column. The guide block is placed between the two plates, the lower surface of the guide block is abutted against the lower plate, and the upper surface of the guide block is abutted against the lower end of the bolt, so that the guide block 5 is pressed and fixed by the bolt, and the guide block 5 can be detachably installed by adjusting the tightness of the bolt.

[0034] The rotating platform 4 is provided with a rotating knob 7 for adjusting the angle of the rotating platform 4 .

[0035] The lower end of the rotating table 4 is mounted on the movable workbench 3 by means of a hand-cranked slide 8 , and the hand-cranked slide 8 adjusts the radial distance between the rotating table 4 and the winding tooling 2 .

[0036] A three-jaw chuck 10 and a sliding head 11 are arranged side by side on the workbench 1. One end of the winding tool 2 is clamped on the three-jaw chuck 10, and the other end is against the head 11, so as to load and unload and match winding tools 2 of different sizes.

[0037] The three-jaw chuck 10 is provided with an adjustment jaw 13, which can clamp the outer circle and also lock the inner hole.

[0038] An ejector pin 12 is rotatably provided on the ejector head 11 , and a central groove matching the ejector pin 12 is provided on one end of the winding tool 2 .

[0039] A guide rail 14 is horizontally fixed to the workbench 1 , and the lower end of the plug 11 is slidably mounted on the guide rail 14 by means of a locking device 15 .

[0040] The locking device 15 includes a support seat slidably mounted on the guide rail 14 , a stop bolt threadedly connected to the support seat, and a lower end of the stop bolt abuts against the guide rail 14 .

[0041] A main feed screw 16 is horizontally rotatably provided on the workbench 1 , the movable workbench 3 is threadedly connected to the main feed screw 16 , and a main feed servo motor 17 that drives the main feed screw 16 to rotate is also fixedly connected to the workbench 1 .

[0042] A slide seat 25 slidably mounted on the guide rail 14 is fixedly connected to the movable workbench 3 .

[0043] A reducer 19 and a servo motor 20 for driving the three-jaw chuck 10 to rotate are fixedly connected to the workbench 1. The servo motor 20 is connected to the power input end of the reducer 19 through a belt drive.

[0044] The speed reducer 19 is also provided with a belt protection cover 21 to cover the transmission belt to protect the safety of the staff.

[0045] A tool support 18 is provided on the upper surface of the workbench 1 , and the tool support 18 holds the winding tool 2 to be used.

[0046] A control panel 22 and a distribution box 23 are also provided on the workbench 1 .

[0047] A protrusion is fixedly connected to the outer wall of the winding tool 2 near one end, and a winding tube fixing hole is provided on the protrusion.

[0048] According to the specifications of the spiral tube, input the corresponding data on the control panel 22 (such as: specifications of the tube to be wound, specifications of the spiral tooling, pitch, number of windings, etc.). Start the motor, and the motor automatically runs according to the program to realize the spiral forming processing of the steel pipe. Improve the efficiency of spiral bending, reduce labor input, and realize semi-automatic winding bending through manual clamping and automatic winding of the machine. Thereby reducing production costs.

[0049] The working principle of this device is:

[0050] When winding the steel pipe, winding tools 2 of different diameters are used to produce winding pipes of different specifications;

[0051] The touch screen display control panel 22 can control each motor and adjust the rotation speed and feed rate of the spindle to achieve winding tubes with different pitches;

[0052] The three-jaw chuck 10, the reducer 19, and the servo motor 20 constitute a spindle mechanism. The servo motor 20 transmits power to the reducer 19 through a pulley connection to reduce the rotation speed and increase the torque to perform the rotation feed of the spindle; and the three-jaw chuck 10 is used to clamp the workpiece;

[0053] The distribution box 23 controls the power distribution of the entire machine, outputs power to the main feed screw 16 through the main feed servo motor 17, and controls the lateral movement of the movable workbench 3; the head 11 clamps the workpiece of the winding tool 2 to prevent it from shaking, and plays a supporting and protective role;

[0054] The rotating table 4 can clamp guide blocks of different specifications by means of a clamp 6, and the guide blocks guide the tube to be wound;

[0055] The rotating platform 4 can rotate the horizontal angle of the guide block to control the helical angle of the spiral tube;

[0056] An adjusting hand wheel 9 is provided on the hand slide 8 , and the hand slide 8 controls the rotating table 4 to move along the radial direction of the workpiece, so as to adjust the distance between the rotating table 4 and the winding tooling 2 .

[0057] The entire mechanism can use digital control of the main shaft rotation and main feed motion to achieve the winding of the winding tube.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A pipe winding machine for a marine steam turbine exhaust structure, characterized in that: The invention comprises a workbench (1), on which a horizontally arranged winding tool (2) is rotatably provided. A movable workbench (3) is provided on one side of the winding tool (2) for sliding along its axial direction, a guide block (5) is fixed on the movable workbench (3), a guide hole is provided on the guide block (5), and a winding tube fixing hole (24) is provided on the winding tool (2).

2. The pipe winding machine for the exhaust structure of a marine steam turbine according to claim 1, characterized in that: A rotating table (4) is horizontally rotatably provided on the movable workbench (3), and the guide block (5) is fixed to the top of the rotating table (4) by means of a clamp (6).

3. The pipe winding machine for the exhaust structure of a marine steam turbine according to claim 2, characterized in that: The lower end of the rotating table (4) is mounted on the movable workbench (3) by means of a hand-cranked slide (8), and the hand-cranked slide (8) adjusts the radial distance between the rotating table (4) and the winding tooling (2).

4. The pipe winding machine for the exhaust structure of a marine steam turbine according to claim 1, characterized in that: A three-jaw chuck (10) and a slidably arranged top head (11) are arranged in parallel on the workbench (1); one end of the winding tool (2) is clamped on the three-jaw chuck (10), and the other end is against the top head (11).

5. The pipe winding machine for the exhaust structure of a marine steam turbine according to claim 4, characterized in that: A push pin (12) is rotatably provided on the push head (11), and a central groove matching the push pin (12) is provided on one end of the winding tool (2).

6. The pipe winding machine for the exhaust structure of a marine steam turbine according to claim 4, characterized in that: A guide rail (14) is horizontally fixedly connected to the workbench (1), and the lower end of the top head (11) is slidably mounted on the guide rail (14) by means of a locking device (15).

7. The pipe winding machine for the exhaust structure of a marine steam turbine according to claim 1, characterized in that: The workbench (1) is provided with a main feed screw (16) for horizontal rotation, the movable workbench (3) is threadedly connected to the main feed screw (16), and the workbench (1) is also fixedly connected with a main feed servo motor (17) for driving the main feed screw (16) to rotate.

8. The pipe winding machine for the exhaust structure of a marine steam turbine according to claim 6, characterized in that: The movable workbench (3) is fixedly connected with a sliding seat (25) which is slidably mounted on the guide rail (14).

9. The pipe winding machine for the exhaust structure of a marine steam turbine according to claim 4, characterized in that: A reducer (19) and a servo motor (20) for driving the three-jaw chuck (10) to rotate are fixedly connected to the workbench (1), and the servo motor (20) is connected to the power input end of the reducer (19) through a belt drive.

10. The pipe winding machine for the exhaust structure of a marine steam turbine according to claim 1, characterized in that: A protrusion is fixedly connected to the outer wall of the winding tool (2) close to one end, and the winding tube fixing hole (24) is opened on the protrusion.

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