An automated high-pressure oil pipe inner wall strengthening device and method

Abstract

The present invention discloses an automated high-pressure oil pipe inner wall strengthening device and method, comprising a bracket and supporting legs arranged at the four corners of the lower end thereof, the lower end of the supporting legs being provided with a supporting plate, a transmission component for transmitting steel pipes being provided inside the bracket, a discharge guide plate for sending away processed steel pipes being provided on the bracket at the right end of the transmission component, an axial adjustment component for axially adjusting the steel pipe being provided at the left end of the bracket, a heating component for heating the steel pipe and a strengthening component for internal pressurization strengthening and rapid cooling of the steel pipe being provided on the right side of the axial adjustment component. The present invention is designed to address the drawbacks of existing devices, can rapidly strengthen the steel pipe internally, can eliminate stress on the steel pipe, can fine-tune the steel pipe during transportation, ensure the accuracy of docking, effectively improve the processing efficiency, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of iron pipe processing, in particular to an automated high-pressure oil pipe inner wall strengthening device and method. Background Art

[0002] High-pressure oil pipes are components of high-pressure oil circuits. The oil pipes are composed of a steel wire wrapped skeleton layer and oil-resistant and corrosion-resistant synthetic rubber inside and outside. They are used for the transportation of media such as engineering machinery hydraulic oil pipes, submarine natural gas, oil, irrigation, steel mills, and chemical plants. The oil pipes are required to withstand a certain oil pressure and have a certain fatigue strength to ensure the sealing requirements of the pipelines. Automotive high-pressure oil pipes are mainly used in high-pressure injection diesel engines and high-pressure injection direct injection gasoline engines, and can withstand the oil pressure required during engine operation.

[0003] In order to improve the performance of high-pressure oil pipes, it is necessary to strengthen the inner wall of the iron pipe. Strengthening the inner wall of the iron pipe means sealing both ends of the iron pipe, injecting high-pressure liquid to apply huge pressure, so that the iron pipe is pressurized from the inside to the outside, and equipped with heating and rapid cooling devices to strengthen the structure and eliminate its stress. However, the existing strengthening device is inefficient during operation and cannot meet the strengthening needs. Based on this, an automated high-pressure oil pipe inner wall strengthening device and method are now provided. Summary of the invention

[0004] The purpose of the present invention is to provide an automated high-pressure oil pipe inner wall strengthening device and method to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An automated high-pressure oil pipe inner wall strengthening device comprises a bracket and legs arranged at the four corners of the lower end thereof, the lower end of the legs is provided with a support plate, a transmission component for transmitting steel pipes is provided inside the bracket, a discharge guide plate for sending processed steel pipes is provided on the bracket at the right end of the transmission component, an axial adjustment component for axially adjusting the steel pipe is provided on the left end of the bracket, a heating component for heating the steel pipe and a strengthening component for internal pressurization strengthening and rapid cooling of the steel pipe are provided on the right side of the axial adjustment component, a positioning component for detecting the position of the steel pipe is provided on the bracket, and the positioning component, the strengthening component and the heating component are electrically connected to the control panel;

[0007] The strengthening component includes a plugging docking component for docking and sealing the two ends of the steel pipe and an oil supply component for inputting high-pressure oil into the steel pipe. The input end of the plugging docking component is also connected to the cooling component.

[0008] As a further solution of the present invention: the blocking docking assembly includes two mounting bases symmetrically arranged on the side surfaces of the bracket, a second vertical plate is slidably provided on the upper end of each mounting base, the lower end of the second vertical plate is connected to a first push rod for driving it to slide along the mounting base, a through hole is opened on the second vertical plate for facilitating the passage of one end of a steel pipe, a conical guide block is provided at one end of the second vertical plate close to the bracket and coaxially arranged with the through hole, a horizontally arranged second base plate is provided on the side of the second vertical plate opposite to the conical guide block, a second vertical plate is slidably provided on the upper end of the second base plate, the lower end of the second vertical plate is connected to a second push rod for driving it to slide along the second base plate, a sealing joint is provided on the second vertical plate for cooperating with the end of the steel pipe, and the other end of the sealing joint is connected to the oil supply part through a transmission liquid pipe.

[0009] As a further solution of the present invention: the oil supply part includes a high-pressure liquid pump arranged at the lower end of the bracket, and the discharge end of the high-pressure liquid pump is provided with a cooling box connected to one of the transmission liquid pipes. High-pressure oil can be input into the steel pipe through the cooling box, so as to strengthen the inner wall of the pipeline. By closing the oil inlet end of the cooling box and injecting high-pressure oil through the high-pressure liquid pump, the inner wall of the steel pipe is strengthened, and then the steel pipe is heated to eliminate stress.

[0010] As a further solution of the present invention: the cooling component includes an air intake pipe connected to the side of the transmission liquid pipe, a one-way valve is provided on the air intake pipe, and the air intake pipe is connected to an air pump for providing cooling air.

[0011] As a further solution of the present invention: the heating assembly includes a combustion seat horizontally mounted on the inner wall of the bracket, and combustion nozzles are arranged at equal intervals on the combustion seat. The gas supply end of the combustion seat is connected to a gas tank, and gas is supplied to the combustion nozzles through the gas tank, thereby heating the surface of the steel pipe. The heating assembly also includes a flipping assembly for uniformly heating the steel pipe.

[0012] As a further solution of the present invention: the flipping assembly includes two mounting frames symmetrically arranged on both sides of the bracket, the lower end of each mounting frame is connected to a lifting push rod for driving it to move up and down, and a second support roller and a first support roller are rotatably provided on each mounting frame, the second support roller and the first support roller are connected to a flipping motor for driving them to rotate, and the first support roller and the second support roller rotate in opposite directions.

[0013] As a further solution of the present invention: the positioning assembly includes a laser emitting block and a receiving block arranged on the bracket, and the positions of the laser emitting block and the receiving block correspond to each other.

[0014] As a further solution of the present invention: the axial adjustment assembly includes two straightening inclined plates symmetrically arranged on the side of the bracket, the two straightening inclined plates are in an eight-shaped structure, and a first telescopic rod and a second telescopic rod are provided between each straightening inclined plate and the bracket. The bottom of the first telescopic rod and the second telescopic rod are rotatably arranged on the side of the bracket, and the output ends of the first telescopic rod and the second telescopic rod are rotatably connected to the surface of the straightening inclined plate.

[0015] As a further solution of the present invention: the transmission component includes two left and right groups of transmission wheels, and the left and right groups of transmission wheels are connected by a transmission chain. A plurality of shifting blocks for shifting steel pipes are distributed in an array on the surface of the transmission chain. The fixed shaft end of the transmission wheel is connected and fixed to the output end of the transport motor, and the position of the left transmission wheel is lower than that of the right transmission wheel.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the present invention is designed to address the drawbacks of the existing devices, can quickly strengthen the steel pipe internally, can eliminate stress on the steel pipe, can fine-tune the steel pipe during transportation to ensure the accuracy of docking, effectively improve the processing efficiency, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 It is a top view of the structure of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the plugging docking assembly in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the flip assembly in the present invention.

[0021] Among them: bracket 11, support leg 12, flip assembly 13, high-pressure liquid pump 14, cooling box 15, transport motor 16, unloading guide plate 17, transmission chain 18, toggle block 19, blocking docking assembly 20, straightening inclined plate 21, steel pipe 22, transmission wheel 23, heating assembly 24, transmission liquid pipe 25, first push rod 26, second push rod 27, second vertical plate 28, sealing joint 29, second vertical plate 30, conical guide block 31, through-hole 32, first telescopic rod 33, second telescopic rod 34, first support roller 35, second support roller 36, mounting frame 37, lifting push rod 38. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figure 1-4 In an embodiment of the present invention, an automated high-pressure oil pipe inner wall strengthening device comprises a bracket 11 and legs 12 arranged at four corners of the lower end thereof, the lower end of the legs 12 is provided with a support plate, a transmission component for transmitting a steel pipe 22 is provided inside the bracket 11, a discharge guide plate 17 for sending away the processed steel pipe 22 is provided on the bracket 11 at the right end of the transmission component, an axial adjustment component for axially adjusting the steel pipe 22 is provided on the left end of the bracket 11, a heating component 24 for heating the steel pipe 22 and a strengthening component for internal pressurization strengthening and rapid cooling of the steel pipe 22 are provided on the right side of the axial adjustment component, a positioning component for detecting the position of the steel pipe 22 is provided on the bracket 11, and the positioning component, the strengthening component and the heating component 24 are electrically connected to the control panel;

[0025] The strengthening component includes a plugging docking component 20 for docking and plugging the two ends of the steel pipe 22 and an oil supply component for inputting high-pressure oil into the steel pipe 22. The input end of the plugging docking component 20 is also connected to the cooling component;

[0026] The blocking docking assembly 20 includes two mounting bases symmetrically arranged on the side of the bracket 11, each mounting base has a second vertical plate 30 slidably arranged on the upper end, the lower end of the second vertical plate 30 is connected to the first push rod 26 for driving it to slide along the mounting base, the second vertical plate 30 is provided with a through hole 32 for one end of the steel pipe 22 to pass through, one end of the second vertical plate 30 close to the bracket 11 is provided with a conical guide block 31 coaxially arranged with the through hole 32, a side of the second vertical plate 30 opposite to the conical guide block 31 is provided with a horizontally arranged second base plate, the upper end of the second base plate is provided with a second vertical plate 28 slidably arranged, the second The lower end of the vertical plate 28 is connected to a second push rod 27 for driving it to slide along the second base plate. The second vertical plate 28 is provided with a sealing joint 29 for matching with the end of the steel pipe 22. The other end of the sealing joint 29 is connected to the oil supply part through the transmission liquid pipe 25. In actual use, when it is detected that the position of the steel pipe 22 reaches the target position, the first push rod 26 drives the second vertical plate 30 to slide. Under the guidance of the conical surface of the conical guide block 31, the steel pipe 22 will easily pass through the through hole 32 and correspond to the position of the sealing joint 29. Then, the second push rod 27 drives the sealing joint 29 to press against the end of the steel pipe 22, thereby completing the pipe connection operation.

[0027] The oil supply part includes a high-pressure liquid pump 14 arranged at the lower end of the bracket 11, and a cooling box 15 connected to one of the transmission liquid pipes 25 is provided at the discharge end of the high-pressure liquid pump 14. The high-pressure oil can be input into the steel pipe 22 through the cooling box 15, so as to strengthen the inner wall of the pipe. By closing the oil inlet end of the cooling box 15 and injecting high-pressure oil through the high-pressure liquid pump 14, the inner wall of the steel pipe 22 is strengthened, and then the steel pipe 22 is heated to eliminate stress;

[0028] The cooling element includes an air inlet pipe connected to the side of the transmission liquid pipe 25, a one-way valve is provided on the air inlet pipe, and the air inlet pipe is connected to an air pump for providing cold air, and the air pump provides cold air to the steel pipe 22, thereby quickly cooling the high-temperature steel pipe 22;

[0029] The heating assembly 24 includes a combustion seat horizontally mounted on the inner wall of the bracket 11, and combustion nozzles are arranged at equal intervals on the combustion seat. The gas supply end of the combustion seat is connected to a gas tank, and gas is supplied to the combustion nozzles through the gas tank, so as to heat the surface of the steel pipe 22. The heating assembly 24 also includes a turning assembly 13 for uniformly heating the steel pipe 22;

[0030] The flip assembly 13 includes two mounting frames 37 symmetrically arranged on both sides of the bracket 11, and the lower end of each mounting frame 37 is connected to a lifting push rod 38 for driving it to move up and down. A second support roller 36 and a first support roller 35 are rotatably provided on each mounting frame 37. The second support roller 36 and the first support roller 35 are connected to a flip motor for driving them to rotate. The first support roller 35 and the second support roller 36 rotate in opposite directions. The mounting frame 37 is driven to rise by the lifting push rod 38, so as to support the two ends of the steel pipe 22, and then the first support roller 35 and the second support roller 36 are driven to rotate by the flip motor, so that the steel pipe 22 is continuously flipped when heated, so that the heating is more uniform.

[0031] The positioning assembly includes a laser emitting block and a receiving block arranged on the bracket 11. When the light emitted by the laser emitting block cannot be received by the receiving block, the surface steel pipe 22 blocks the signal, thereby displaying the position of the steel pipe 22;

[0032] The axial adjustment assembly includes two symmetrically arranged straightening bevel plates 21 on the side of the bracket 11, and the two straightening bevel plates 21 are in an eight-shaped structure. A first telescopic rod 33 and a second telescopic rod 34 are arranged between each straightening bevel plate 21 and the bracket 11. The bottoms of the first telescopic rod 33 and the second telescopic rod 34 are rotatably arranged on the side of the bracket 11, and the output ends of the first telescopic rod 33 and the second telescopic rod 34 are rotatably connected to the surface of the straightening bevel plate 21. By adjusting the lengths of the first telescopic rod 33 and the second telescopic rod 34 at the same time, the distance between the two straightening bevel plates 21 can be adjusted. By adjusting the lengths of the first telescopic rod 33 and the second telescopic rod 34 respectively, the straightening bevel plates 21 can be tilted at different angles, so as to better guide the steel pipe 22.

[0033] The transmission component includes two left and right groups of transmission wheels 23, which are connected by a transmission chain 18. A plurality of toggle blocks 19 for toggling the steel pipe 22 are distributed in an array on the surface of the transmission chain 18. The fixed shaft end of the transmission wheel 23 is connected and fixed to the output end of the transport motor 16. The position of the transmission wheel 23 on the left is lower than that of the transmission wheel 23 on the right, so that the transmission chain 18 is set higher on the left and lower on the right, which makes it convenient for the steel pipe 22 to press and contact with the toggle block 19 to avoid the steel pipe 22 from rolling randomly. Driven by the transport motor 16, the toggle block 19 on the transmission chain 18 drives the steel pipe 22 to move from left to right.

[0034] The working principle of the present invention is as follows: in actual use, the steel pipe 22 to be processed is placed on the transmission chain 18. Under the toggle of the toggle block 19, the steel pipe 22 will move to the right, first transport the steel pipe 22 to the position of the blocking docking assembly 20, and drive the second vertical plate 30 to slide through the first push rod 26. Under the guidance of the conical surface of the conical guide block 31, the steel pipe 22 will easily pass through the through hole 32 and correspond to the position of the sealing joint 29, and then drive the sealing joint 29 to press the steel pipe 22 through the second push rod 27. The end portion is connected to complete the pipe connection operation, and oil is delivered to the steel pipe 22 through the oil supply part to complete the strengthening treatment of the inner wall of the iron pipe. After the strengthening is completed, the steel pipe 22 is heated by the heating component 24 to eliminate the stress generated by the strengthening, and then the steel pipe 22 is moved to the position of the plugging docking component 20. At this time, cold air is provided to the steel pipe 22 through the air pump, so as to quickly cool the high-temperature steel pipe 22, and then the steel pipe 22 is driven to move to the right through the transmission chain 18, and finally unloaded along the unloading guide plate 17.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. An automated high-pressure oil pipe inner wall strengthening device, comprising a bracket (11) and legs (12) arranged at four corners of the lower end thereof, wherein a support plate is arranged at the lower end of the legs (12), characterized in that: A transmission component for transmitting the steel pipe (22) is provided inside the support (11); a discharge guide plate (17) for sending away the processed steel pipe (22) is provided on the support (11) at the right end of the transmission component; an axial adjustment component for axially adjusting the steel pipe (22) is provided at the left end of the support (11); a heating component (24) for heating the steel pipe (22) and a strengthening component for internal pressurization strengthening and rapid cooling of the steel pipe (22) are provided on the right side of the axial adjustment component; a positioning component for detecting the position of the steel pipe (22) is provided on the support (11); the positioning component, the strengthening component and the heating component (24) are electrically connected to the control panel; The strengthening component comprises a plugging docking component (20) for docking and sealing the two ends of the steel pipe (22) and an oil supply component for inputting high-pressure oil into the steel pipe (22), and the input end of the plugging docking component (20) is also connected to the cooling component; The plugging docking assembly (20) comprises two mounting base plates symmetrically arranged on the side of the bracket (11), each mounting base plate having a second vertical plate (30) slidably arranged on the upper end thereof, the lower end of the second vertical plate (30) being connected to a first push rod (26) for driving the second vertical plate (30) to slide along the mounting base plate, the second vertical plate (30) being provided with a through hole (32) for facilitating the passage of one end of the steel pipe (22), the end of the second vertical plate (30) close to the bracket (11) being provided with a conical guide block (31) coaxially arranged with the through hole (32), the side of the second vertical plate (30) opposite to the conical guide block (31) being provided with a horizontally arranged second base plate, the upper end of the second base plate being provided with a second vertical plate (28) slidably arranged, the lower end of the second vertical plate (28) being connected to a second push rod (27) for driving the second vertical plate (28) to slide along the second base plate, the second vertical plate (28) being provided with a sealing joint (29) for matching with the end of the steel pipe (22), the other end of the sealing joint (29) being connected to the oil supply member via a transmission liquid pipe (25).

2. The automated high-pressure oil pipe inner wall strengthening device according to claim 1 is characterized in that: The oil supply component comprises a high-pressure liquid pump (14) arranged at the lower end of the bracket (11), and a cooling box (15) connected to one of the transmission liquid pipes (25) is provided at the discharge end of the high-pressure liquid pump (14).

3. The automated high-pressure oil pipe inner wall strengthening device according to claim 2 is characterized in that: The cooling element comprises an air inlet pipe connected to the side of the transmission liquid pipe (25), a one-way valve is provided on the air inlet pipe, and the air inlet pipe is connected to an air pump for providing cooling air.

4. The automated high-pressure oil pipe inner wall strengthening device according to claim 1, characterized in that: The heating component (24) comprises a combustion seat horizontally mounted on the inner wall of the bracket (11), combustion nozzles are arranged at equal intervals on the combustion seat, and the gas supply end of the combustion seat is connected to a gas tank, and gas is supplied to the combustion nozzles through the gas tank. The heating component (24) also comprises a turning component (13) for uniformly heating the steel pipe (22).

5. The automated high-pressure oil pipe inner wall strengthening device according to claim 4 is characterized in that: The flip assembly (13) comprises two mounting frames (37) symmetrically arranged on both sides of the bracket (11); the lower end of each mounting frame (37) is connected to a lifting push rod (38) for driving the mounting frame to move up and down; a second support roller (36) and a first support roller (35) are rotatably provided on each mounting frame (37); the second support roller (36) and the first support roller (35) are connected to a flip motor for driving the first support roller (35) to rotate; and the first support roller (35) and the second support roller (36) rotate in opposite directions.

6. The automated high-pressure oil pipe inner wall strengthening device according to claim 1, characterized in that: The positioning component comprises a laser emitting block and a receiving block which are arranged on a bracket (11), and the positions of the laser emitting block and the receiving block correspond to each other.

7. The automated high-pressure oil pipe inner wall strengthening device according to claim 1, characterized in that: The axial adjustment assembly comprises two symmetrically arranged aligning inclined plates (21) on the side of the bracket (11), the two aligning inclined plates (21) are in an eight-shaped structure, a first telescopic rod (33) and a second telescopic rod (34) are arranged between each aligning inclined plate (21) and the bracket (11), the bottoms of the first telescopic rod (33) and the second telescopic rod (34) are rotatably arranged on the side of the bracket (11), and the output ends of the first telescopic rod (33) and the second telescopic rod (34) are rotatably connected to the surface of the aligning inclined plate (21).

8. The automated high-pressure oil pipe inner wall strengthening device according to claim 1, characterized in that: The transmission assembly comprises two groups of transmission wheels (23) on the left and right, and the two groups of transmission wheels (23) are connected by a transmission chain (18). A plurality of shifting blocks (19) for shifting the steel pipe (22) are distributed in an array on the surface of the transmission chain (18). The fixed shaft end of the transmission wheel (23) is connected and fixed to the output end of the transport motor (16), and the position of the left transmission wheel (23) is lower than that of the right transmission wheel (23).

9. The method for using the automated high-pressure oil pipe inner wall strengthening device according to any one of claims 1 to 8, characterized in that: The steel pipe (22) to be processed is placed on the transmission chain (18). Under the toggle of the toggle block (19), the steel pipe (22) moves to the right. The steel pipe (22) is first transported to the position of the plugging docking assembly (20). The second vertical plate (30) is driven to slide by the first push rod (26). Under the guidance of the conical surface of the conical guide block (31), the steel pipe (22) easily passes through the through-hole (32) and corresponds to the position of the sealing joint (29). Then, the sealing joint (29) is driven to press against the end of the steel pipe (22) by the second push rod (27). Thus, the pipe connection operation is completed, and oil is delivered to the steel pipe (22) through the oil supply part, thereby completing the strengthening treatment of the inner wall of the iron pipe. After the strengthening is completed, the steel pipe (22) is heated by the heating component (24), thereby eliminating the stress generated by the strengthening, and then the steel pipe (22) is moved to the position of the plugging docking component (20). At this time, cold air is provided to the steel pipe (22) through the air pump, thereby quickly cooling the high-temperature steel pipe (22), and then the steel pipe (22) is driven to move to the right through the transmission chain (18), and finally discharged along the discharge guide plate (17).

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