Pipe rolling machine

Abstract

The utility model provides a tube rolling machine, which comprises a walking frame, the base is connected with the walking frame; the pipe twisting mechanism is connected with the base, and the pipe twisting mechanism is located above the base; the two reaction oil cylinders are symmetrically arranged on the two sides of the base, one end of each reaction oil cylinder is connected with the walking frame, and the other end of each reaction oil cylinder is connected with the base; the control device is used for controlling the telescopic state of the reaction oil cylinder and is respectively connected with the reaction oil cylinder and the pipe twisting mechanism. The pipe twisting machine provided by the embodiment of the utility model is high in pipe sleeving efficiency and high in transition efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipe rolling machine technology, and in particular to a pipe rolling machine. Background Technology

[0002] During the pressing of the casing, the base of the pipe rolling machine is easily lifted by the reaction force, which weakens the pressing capacity and reduces the pressing efficiency. In addition, when construction equipment such as rotary drilling rigs are towing the pipe rolling machine to move to another site, it is inconvenient to install steel wire ropes for hoisting, resulting in low relocation efficiency. Utility Model Content

[0003] This utility model provides a pipe rolling machine to solve the problems of low pipe rolling efficiency and low transfer efficiency in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model embodiment provides a tube rolling machine, including:

[0006] Walking frame;

[0007] A base, which is connected to the walking frame;

[0008] A tube-rubbing mechanism is connected to the base and is located above the base;

[0009] Two reaction cylinders are symmetrically arranged on both sides of the base, wherein one end of each reaction cylinder is connected to the walking frame and the other end is connected to the base.

[0010] A control device for controlling the extension and retraction state of the reaction cylinder, the control device being connected to both the reaction cylinder and the pipe-rubbing mechanism.

[0011] Optionally, the control device includes:

[0012] A first hydraulically controlled directional valve is connected to the reaction cylinder via a lock-up valve.

[0013] An integrated block, which is connected to the lock-up valve, includes an accumulator and a safety valve.

[0014] Optionally, one end of the reaction cylinder is connected to the traveling frame via a universal joint, and the other end of the reaction cylinder is connected to the base via the universal joint.

[0015] Optionally, the tube-rubbing mechanism includes:

[0016] A first bracket, which is connected to the base;

[0017] The second bracket has a first through hole and is connected to the base via a pressure-pulling cylinder.

[0018] A clamping cylinder is connected to the second bracket, and the clamping cylinder is fixed to the inner side of the second bracket around the first through hole;

[0019] Two pipe-rubbing cylinders are symmetrically arranged on both sides of the second support. One end of the pipe-rubbing cylinder is connected to the first support, and the other end of the pipe-rubbing cylinder is connected to the second support.

[0020] The control device is connected to the pressure-pulling cylinder, the clamping cylinder, and the tube-rubbing cylinder, respectively.

[0021] The control device controls the movement of the pressing and pulling cylinder to drive the second bracket to move up and down relative to the base; the control device controls the movement of the clamping cylinder to adjust the diameter of the first through hole; the control device controls the movement of the tube rolling cylinder to drive the second bracket to rotate left and right.

[0022] Optionally, the control device includes:

[0023] A second hydraulic control directional valve is used to control the movement of the pipe-rubbing cylinder, and the second hydraulic control directional valve is connected to the pipe-rubbing cylinder.

[0024] Optionally, the control device includes:

[0025] A third hydraulically controlled directional valve is used to control the movement of the pressure-pulling cylinder and the clamping cylinder, and the third hydraulically controlled directional valve is connected to the pressure-pulling cylinder and the clamping cylinder respectively.

[0026] The beneficial effects of this utility model are:

[0027] The pipe-rolling machine provided in this embodiment includes: a traveling frame, a base, a pipe-rolling mechanism, a reaction cylinder, and a control device. Compared with the prior art, this embodiment has two reaction cylinders arranged between the traveling frame and the base, and the two reaction cylinders are symmetrical on both sides of the base. In addition, the extension and retraction states of the reaction cylinders are controlled by the control device. When the pipe-rolling mechanism in the pipe-rolling machine is performing the downward sleeve operation, the control device controls the reaction cylinder to be in the extended state and maintains the extended thrust, so that the base is subjected to a downward pressure and is close to the ground, which can offset part of the reaction force of the downward sleeve and improve the working efficiency of the pipe-rolling machine. When the pipe-rolling machine completes the operation, the control device controls the reaction cylinder to be in the retracted state, thereby raising the base and the pipe-rolling mechanism as a whole, which facilitates the transfer operation of the pipe-rolling machine and improves the transfer efficiency. Attached Figure Description

[0028] Figure 1 This is a top view of the tube rolling machine provided by this utility model;

[0029] Figure 2 A schematic diagram showing the side section of the tube rolling machine provided by this utility model;

[0030] Figure 3 This is a schematic diagram showing the structure of the control system of the tube rolling machine provided by this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Walking frame; 2. Base; 3. Reaction cylinder; 41. Locking valve; 42. Accumulator; 43. Safety valve; 50. First through hole; 51. First bracket; 52. Second bracket; 53. Pressing and pulling cylinder; 54. Clamping cylinder; 55. Tube rubbing cylinder. Detailed Implementation

[0033] To make the technical problems, technical solutions, and advantages of this utility model clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this utility model. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this utility model. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0034] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0035] In various embodiments of this utility model, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of this utility model embodiment.

[0036] like Figures 1 to 3 As shown, this utility model addresses the problems of low sleeve efficiency and low transfer efficiency of existing tube rolling machines by providing a tube rolling machine, comprising:

[0037] Walking frame 1;

[0038] Base 2, which is connected to the walking frame 1;

[0039] A tube-rubbing mechanism is connected to the base 2 and is located above the base 2.

[0040] Two reaction cylinders 3 are symmetrically arranged on both sides of the base 2, wherein one end of each reaction cylinder 3 is connected to the walking frame 1 and the other end is connected to the base 2.

[0041] A control device for controlling the extension and retraction state of the reaction cylinder 3, the control device being connected to both the reaction cylinder 3 and the pipe-rubbing mechanism.

[0042] In this embodiment of the utility model, the tube rolling machine includes: a traveling frame 1, a base 2, a tube rolling mechanism, a reaction cylinder 3, and a control device. The tube rolling mechanism is used to process the sleeve, such as pressing down the sleeve. The traveling frame 1 is generally connected to a drive mechanism, which controls the movement of the traveling frame 1, thereby driving the entire tube rolling machine to move. Figure 3 As shown, the drive mechanism controls the drive state through a hydraulic directional valve. Compared to the prior art, this embodiment of the invention has two reaction cylinders 3 arranged between the walking frame 1 and the base 2, and the two reaction cylinders 3 are symmetrical on both sides of the base 2. In addition, the extension and retraction states of the reaction cylinders 3 are controlled by a control device. When the pipe rolling mechanism in the pipe rolling machine is performing the downward pressing sleeve operation, the control device controls the reaction cylinders 3 to be in the extended state and maintain the extended thrust, so that the base 2 is subjected to oblique downward pressure and is close to the ground, which can offset part of the reaction force of the downward pressing sleeve and improve the working efficiency of the pipe rolling machine. When the pipe rolling machine completes the operation, the control device controls the reaction cylinders 3 to be in the retracted state, thereby raising the base 2 and the pipe rolling mechanism as a whole, which facilitates the transfer operation of the pipe rolling machine and improves the transfer efficiency.

[0043] Optionally, the control device includes:

[0044] The first hydraulically controlled directional valve is connected to the reaction cylinder 3 via a lock-up valve 41.

[0045] An integrated block, which is connected to the lock-up valve 41, includes an accumulator 42 and a safety valve 43.

[0046] In this embodiment of the invention, compared to the prior art, a reaction cylinder 3 is added, and consequently, a control device corresponding to the reaction cylinder 3 is added, as detailed below. Figure 3As shown in the figure, the hydraulic control directional valve connected to the reaction cylinder 3 is the first hydraulic control directional valve. The first hydraulic control directional valve is connected to the reaction cylinder 3 through the first pipeline, and a lock-up valve 41, an accumulator 42 and a safety valve 43 are provided on the pipeline. The accumulator 42 and the safety valve 43 are integrated in one integrated block.

[0047] Specifically, when the pipe-rolling mechanism in the pipe-rolling machine performs the downward sleeve operation, the first hydraulic control directional valve is switched to the first working position, allowing hydraulic oil to flow through the first pipeline to the reaction cylinder 3. The locking valve 41 is also locked, and the accumulator 42 is activated, causing the reaction cylinder 3 to be in the extended state and maintain its extended thrust. Consequently, the base 2 experiences downward pressure and is pressed against the ground, which partially counteracts the downward sleeve reaction force. After the first hydraulic control directional valve resets, the locking valve 41 and the accumulator 42 ensure that the reaction cylinder 3 continuously applies pressure to the base 2 for a period of time until the pipe-rolling machine completes its operation. After the pipe-rolling machine completes its operation, during the relocation operation, the first hydraulic control directional valve is switched to the second working position, allowing hydraulic oil to flow back through the first pipeline within the reaction cylinder 3. The locking valve 41 is unlocked, and the accumulator 42 is activated, causing the reaction cylinder 3 to be in the retracted state. This raises the base 2 and the pipe-rolling mechanism as a whole, facilitating the relocation of the pipe-rolling machine.

[0048] The main function of the safety valve in this embodiment is to protect the control device and the reaction cylinder 3 from overpressure damage. When the pressure exceeds the set value, the safety valve will automatically open to release some of the pressure and maintain the normal operation of the tube rolling machine.

[0049] Optionally, one end of the reaction cylinder 3 is connected to the traveling frame 1 via a universal joint, and the other end of the reaction cylinder 3 is connected to the base 2 via the universal joint.

[0050] In this embodiment of the utility model, the reaction cylinder 3 is connected to the walking frame 1 and the base 2 respectively through universal joints, and the reaction cylinder 3 can switch between extension and retraction states more flexibly.

[0051] Optionally, the tube-rubbing mechanism includes:

[0052] A first bracket 51 is connected to the base;

[0053] The second bracket 52 is provided with a first through hole 50, and the second bracket 52 is connected to the base 2 through a pressure-pulling cylinder 53.

[0054] A clamping cylinder 54 is connected to the second bracket 52, and the clamping cylinder 54 surrounds the first through hole 50 and is fixed to the inner side of the second bracket 52.

[0055] Two pipe-rubbing cylinders 55 are symmetrically arranged on both sides of the second bracket 52. One end of the pipe-rubbing cylinder 55 is connected to the first bracket 51, and the other end of the pipe-rubbing cylinder 55 is connected to the second bracket 52.

[0056] The control device is connected to the pressure-pulling cylinder 53, the clamping cylinder 54 and the tube-rubbing cylinder 55 respectively.

[0057] The control device controls the movement of the pressing and pulling cylinder 53, which drives the second bracket 52 to move up and down relative to the base; the control device controls the movement of the clamping cylinder 54 to adjust the diameter of the first through hole 50; the control device controls the movement of the tube rubbing cylinder 55 to drive the second bracket 52 to rotate left and right.

[0058] In this embodiment of the utility model, the first bracket 51 is fixedly connected to the base 2, and the second bracket 52 is connected to the base 2 through the pressure-pulling cylinder 53. The first bracket 51 and the second bracket 52 are connected by the tube-rubbing cylinder 55. In addition, the second bracket 52 is provided with a first through hole 50. When the tube-rubbing machine is working, the sleeve is placed in the first through hole 50, and a clamping cylinder 54 is provided inside the second bracket 52 surrounding the first through hole 50.

[0059] Furthermore, the control device can control the extension and retraction states of the tube-rubbing cylinder 55, the extension and retraction states of the pressure-drawing cylinder 53, and the tension state of the clamping cylinder 54. Specifically, the two tube-rubbing cylinders 55 on both sides of the second bracket 52 are the first tube-rubbing cylinder and the second tube-rubbing cylinder, respectively. The control device controls the first tube-rubbing cylinder to extend and the second tube-rubbing cylinder to retract, causing the second bracket 52 to rotate in the first direction; the control device controls the first tube-rubbing cylinder to retract and the second tube-rubbing cylinder to extend, causing the second bracket 52 to rotate in the second direction, which is opposite to the first direction. For example, if the first direction is clockwise, the second direction is counterclockwise. The control device controls the pressure-drawing cylinder 53 to switch from the retracted state to the extended state, causing the second bracket 52 to move upward; the control device controls the pressure-drawing cylinder 53 to switch from the extended state to the retracted state, causing the second bracket 52 to move downward. The clamping cylinder 54 is controlled by a control device to switch between the loosening state and the clamping state. When the clamping cylinder 54 is in the loosening state, the sleeve can swing or move within the first through hole 50. When the clamping cylinder 54 is in the clamping state, the sleeve is fixed within the first through hole 50.

[0060] Optionally, the control device includes:

[0061] A second hydraulic control directional valve is used to control the movement of the pipe-rubbing cylinder 55, and the second hydraulic control directional valve is connected to the pipe-rubbing cylinder 55.

[0062] In this embodiment of the utility model, such as Figure 3 As shown in the figure, the hydraulic control directional valve connected to the pipe-rubbing cylinder 55 is a second hydraulic control directional valve. The second hydraulic control directional valve is connected to the pipe-rubbing cylinder 55 via a second pipeline. By controlling the second hydraulic control directional valve in the control device to switch to the working position, hydraulic oil flows through the first pipeline to the pipe-rubbing cylinder 55 or flows back from the pipe-rubbing cylinder 55 to the first pipeline, thereby controlling the extension and retraction state of the pipe-rubbing cylinder 55. It should be noted that the second hydraulic control directional valve can be the same as the first hydraulic control directional valve of the reaction cylinder 3, or it can be a different hydraulic control directional valve; this utility model does not limit this.

[0063] Optionally, the control device includes:

[0064] A third hydraulic control directional valve is used to control the movement of the pressure-pulling cylinder 53 and the clamping cylinder 54. The third hydraulic control directional valve is connected to the pressure-pulling cylinder 53 and the clamping cylinder 54 respectively.

[0065] In this embodiment of the utility model, such as Figure 3 As shown in the figure, the hydraulic control directional valve connected to the pressure-drawing cylinder 53 and the clamping cylinder 54 is the third hydraulic control directional valve. The third hydraulic control directional valve is connected to the pressure-drawing cylinder 53 through the third pipeline, and the fourth hydraulic control directional valve is connected to the clamping cylinder 54 through the fourth pipeline. By controlling the third hydraulic control directional valve to switch to the working position, the extension and retraction state of the pressure-drawing cylinder 53 and the tension state of the clamping cylinder 54 are controlled.

[0066] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0070] The above describes the preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this utility model, and these improvements and modifications are also within the protection scope of this utility model.

Claims

1. A tube rolling machine, characterized in that, include: Walking frame (1); Base (2), which is connected to the walking frame (1); A tube-rubbing mechanism is connected to the base (2) and is located above the base (2); Two reaction cylinders (3) are symmetrically arranged on both sides of the base (2), wherein one end of each reaction cylinder (3) is connected to the walking frame (1) and the other end is connected to the base (2). A control device for controlling the extension and retraction state of the reaction cylinder (3) is connected to the reaction cylinder (3) and the pipe rubbing mechanism respectively.

2. The tube rolling machine according to claim 1, characterized in that, The control device includes: The first hydraulic control directional valve is connected to the reaction cylinder (3) via a lock-up valve (41); An integrated block, which is connected to the lock-up valve (41), includes an accumulator (42) and a safety valve (43).

3. The tube rolling machine according to claim 1, characterized in that, One end of the reaction cylinder (3) is connected to the traveling frame (1) via a universal joint, and the other end of the reaction cylinder (3) is connected to the base (2) via the universal joint.

4. The tube rolling machine according to claim 1, characterized in that, The tube-rubbing mechanism includes: The first bracket (51) is connected to the base; The second bracket (52) is provided with a first through hole (50), and the second bracket (52) is connected to the base (2) through a pressure-pulling cylinder (53); A clamping cylinder (54) is connected to the second bracket (52), and the clamping cylinder (54) surrounds the first through hole (50) and is fixed to the inside of the second bracket (52); Two rubbing cylinders (55) are symmetrically arranged on both sides of the second bracket (52). One end of the rubbing cylinder (55) is connected to the first bracket (51), and the other end of the rubbing cylinder (55) is connected to the second bracket (52). The control device is connected to the pressure-pulling cylinder (53), the clamping cylinder (54), and the tube-rubbing cylinder (55), respectively. The control device controls the movement of the pressing and pulling cylinder (53) to drive the second bracket (52) to move up and down relative to the base; the control device controls the movement of the clamping cylinder (54) to adjust the diameter of the first through hole (50); the control device controls the movement of the tube rubbing cylinder (55) to drive the second bracket (52) to rotate left and right.

5. The tube rolling machine according to claim 4, characterized in that, The control device includes: A second hydraulic control directional valve is used to control the movement of the pipe-rubbing cylinder (55), and the second hydraulic control directional valve is connected to the pipe-rubbing cylinder (55).

6. The tube rolling machine according to claim 4, characterized in that, The control device includes: A third hydraulic control directional valve is used to control the movement of the pressure-pulling cylinder (53) and the clamping cylinder (54), and the third hydraulic control directional valve is connected to the pressure-pulling cylinder (53) and the clamping cylinder (54) respectively.

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