A tube rolling machine

Abstract

The present invention discloses a pipe rolling machine, which relates to the field of building construction, including a chassis, etc. A lower chuck is arranged in the chassis, a pressure-drawing oil cylinder is installed on the chassis, an upper chuck arranged above the lower chuck is controlled to rise and fall by the pressure-drawing oil cylinder, a clamping oil cylinder is arranged on one side of the upper chuck, which is used to clamp and fix the casing on the machine extending into the upper chuck, the top of the casing on the machine is connected and driven by a crane, the bottom of the casing on the machine passes through the lower chuck, and is clamped and fixed by a lower clamping oil cylinder connected to the lower chuck; one end of the straightening oil cylinder is connected to the upper chuck, and the other end of the straightening oil cylinder is connected to the control valve block; a pipe rolling oil cylinder is arranged on each side of the straightening oil cylinder, which is used to push the upper chuck to rotate the casing on the machine, and the pipe rolling oil cylinder is connected and driven by the control valve block. The beneficial effects of the present invention are: the pipe rolling operation is fast and efficient, the operation is more stable, the casing can be fixed according to the actual diameter of the pipe, and damage caused by over-tightening can be avoided, and at the same time, over-loosening can be avoided to cause the pipe to slip.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to a pipe rolling machine. Background Art

[0002] The pipe rolling machine is a very important mechanical equipment in construction. It can lower the casing into the bored pile well by rotating it, so as to build bored piles faster. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a tube rolling machine which has the advantages of simple structure, convenient use, safety and reliability.

[0004] The objective of the present invention is achieved through the following technical scheme: the tube rolling machine comprises a chassis, a lower chuck, an upper chuck, a tube rolling cylinder and a straightening cylinder, wherein the lower chuck is arranged in the chassis, a pressing and drawing cylinder is installed on the chassis, the upper chuck arranged above the lower chuck is controlled to rise and fall by the pressing and drawing cylinder, a clamping cylinder is arranged on one side of the upper chuck, which is used to clamp and fix the casing on the machine extending into the upper chuck, the top end of the casing on the machine is connected and driven by a crane, the bottom end of the casing on the machine passes through the lower chuck, and is clamped and fixed by a lower clamping cylinder connected to the lower chuck; one end of the straightening cylinder is connected to the upper chuck, and the other end of the straightening cylinder is connected to the control valve block; a tube rolling cylinder is arranged on each side of the straightening cylinder, which is used to push the upper chuck to rotate the casing on the machine, and each tube rolling cylinder is connected and driven by the control valve block.

[0005] As a further technical solution, two support seats are provided on the lower chuck, which are respectively located directly below the edges of both sides of the upper chuck and are used to support the upper chuck.

[0006] As a further technical solution, a remote control interface and a power supply interface are provided on one side of the control valve block. The remote control interface is used to connect an external remote control device to remotely control the tube rolling machine; the power supply interface is used to connect an external circuit.

[0007] As a further technical solution, a mechanical interface plate is installed on the side of the chassis away from the casing on the machine for connecting a crane to allow the entire tube rolling machine to move.

[0008] The beneficial effects of the present invention are as follows: the tube rolling operation is fast and efficient, the operation is more stable, the casing can be fixed according to the actual diameter of the pipe, and damage caused by over-tightening can be avoided, while over-loosening can be avoided to cause the pipe to slip. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention.

[0010] Explanation of the reference numerals in the accompanying drawings: chassis 1, lower chuck 2, lower clamping cylinder 3, support seat 4, pressing and drawing cylinder 5, clamping cylinder 6, upper chuck 7, upper casing 8, tube rubbing cylinder 9, straightening cylinder 10, control valve block 11, remote control interface 12, power interface 13, mechanical interface board 14. DETAILED DESCRIPTION

[0011] The present invention will be described in detail below with reference to the accompanying drawings:

[0012] Example: As attached Figure 1 As shown, the tube rolling machine comprises a chassis 1, a lower chuck 2, an upper chuck 7, a tube rolling cylinder 9 and a straightening cylinder 10. The chassis 1 is provided with a lower chuck 2, and a pressing and drawing cylinder 5 is installed on the chassis 1. The upper chuck 7 arranged above the lower chuck 2 is controlled to rise and fall by the pressing and drawing cylinder 5. A clamping cylinder 6 is provided on one side of the upper chuck 7 for clamping and fixing the machine casing 8 extending into the upper chuck 7. The top of the machine casing 8 is connected and driven by a crane, and the bottom of the machine casing 8 passes through the lower chuck 2 and is clamped and fixed by the lower clamping cylinder 3 connected to the lower chuck 2; one end of the straightening cylinder 10 is connected to the upper chuck 7, and the other end of the straightening cylinder 10 is connected to the control valve block 11; a tube rolling cylinder 9 is provided on both sides of the straightening cylinder 10, which is used to push the upper chuck 7 to rotate the machine casing 8 within the range of 70°-80°, and each tube rolling cylinder 9 is connected and driven by the control valve block 11. Preferably, two support seats 4 are provided on the lower chuck 2, which are respectively located directly below the edges of the upper chuck 7 on both sides and are used to support the upper chuck. A remote control interface 12 and a power supply interface 13 are provided on one side of the control valve block 11. The remote control interface 12 is used to connect an external remote control device to remotely control the tube rolling machine; the power supply interface 13 is used to connect an external circuit. A mechanical interface board 14 is installed on the side of the chassis 1 away from the casing 8 on the machine for connecting a crane to move the entire tube rolling machine.

[0013] The working process of the present invention is as follows: when the pipe rolling machine is working, the starting casing with the casing drill bit is hoisted into the upper chuck 7 and the lower chuck 2 of the pipe rolling machine by a crane, and the casing is adjusted vertically by a guide correction mechanism (pressing and pulling cylinder 5 and straightening cylinder 10), and then the casing is clamped by a clamping device (clamping cylinder 6 and upper chuck 7), and the clamping device and the casing are swung left and right within a certain angle by the alternating extension and contraction of the pipe rolling cylinders 9 on both sides, and the pressing and pulling cylinder 5 presses the casing into the formation quickly. When the casing is pressed into the formation to a depth that reaches the maximum stroke of the pressing and pulling cylinder 5, the clamping cylinder 6 shortens the action and releases the casing. The pressing and pulling cylinder 5 extends the idle stroke to lift the upper chuck 7 to the upper dead point, and the upper chuck 7 clamps the casing again, and the pressing and pulling cylinder 5 presses the casing down by one cylinder stroke. Repeat the above actions, the rotary drilling rig grabs the rock and soil in the casing, and the pipe rolling machine cooperates to synchronously press the casing into the designed pile depth. When pouring concrete, rub and pull out the casing, and pull out the casing while pouring, until all the casings are pulled out and the pile is poured.

[0014] It is understandable that, for those skilled in the art, any equivalent replacement or change to the technical solution and inventive concept of the present invention should fall within the protection scope of the claims attached to the present invention.

Claims

1. A tube rolling machine, characterized in that: The machine comprises a chassis (1), a lower chuck (2), an upper chuck (7), a tube-rubbing cylinder (9) and a straightening cylinder (10). The chassis (1) is provided with a lower chuck (2). A pressing and drawing cylinder (5) is installed on the chassis (1). The upper chuck (7) arranged above the lower chuck (2) is controlled to rise and fall by the pressing and drawing cylinder (5). A clamping cylinder (6) is provided on one side of the upper chuck (7) for clamping and fixing an on-machine casing (8) inserted into the upper chuck (7). The top end of the on-machine casing (8) is connected to a crane via a lifting device. The lower end of the casing (8) on the machine passes through the lower chuck (2) and is clamped and fixed by the lower clamping cylinder (3) connected to the lower chuck (2); one end of the straightening cylinder (10) is connected to the upper chuck (7), and the other end of the straightening cylinder (10) is connected to the control valve block (11); a tube-rolling cylinder (9) is provided on each side of the straightening cylinder (10) for pushing the upper chuck (7) to rotate the casing (8) on the machine, and each tube-rolling cylinder (9) is connected and driven by the control valve block (11); The lower chuck (2) is provided with two support seats (4), which are respectively located directly below the edges of both sides of the upper chuck (7) and are used to support the upper chuck; A remote control interface (12) and a power supply interface (13) are provided on one side of the control valve block (11); the remote control interface (12) is used to connect an external remote control device to remotely control the tube rolling machine; and the power supply interface (13) is used to connect an external circuit.

2. The tube rolling machine according to claim 1, characterized in that: A mechanical interface plate (14) is installed on the side of the chassis (1) away from the casing (8) on the machine for connecting to a crane to allow the entire tube rolling machine to move.

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