Adjustable arm support of pipe lifting machine

Abstract

The utility model relates to the technical field of pipe cranes, in particular to an adjustable arm support of a pipe crane. The problem that in the prior art, hoisting and placing angle adjustment of a pipe hoisting machine need to be completed by multiple workers together is solved, and the practicability of equipment is improved. Comprising a bottom frame, a first connecting arm is rotationally connected to the bottom frame, a sliding groove is formed in the first connecting arm, a second connecting arm is slidably connected into the sliding groove, a first lifting steel wire rope and a second lifting steel wire rope are arranged on the second connecting arm, a first hook is fixed to one end of the first lifting steel wire rope, and a second hook is fixed to one end of the second lifting steel wire rope. A first control structure for controlling the extension lengths of the first lifting steel wire rope and the second lifting steel wire rope is arranged on the underframe; and a second control structure for controlling the first lifting steel wire rope to rotate relative to the second lifting steel wire rope is arranged on the second connecting arm. During carrying, the number of workers needing to operate is smaller, and high practicability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe hoisting machine technical field, specifically, relates to a adjustable arm support of pipe hoisting machine. BACKGROUND

[0002] Pipe hoisting machine is the important equipment of petroleum and natural gas pipeline construction, is mainly used for the pipe of large -diameter, the mouth and the ditch work of putting. Among them, the pipe hoisting machine arm support is the core component of pipe hoisting machine, and it is through hydraulic system or mechanical telescoping to complete the lifting and handling of heavy objects.

[0003] The working of the pipe hoisting machine arm support in the prior art is: first, move the pipe hoisting machine to the handling piece, then connect the hook on the pipe hoisting machine with the top of the handling piece, then start the pipe hoisting machine to make the handling piece separate from the ground, then move the handling piece to the position where it needs to be placed, and rotate the handling piece to the appropriate angle, and finally lower the hook and place the handling piece.

[0004] Although this can achieve the handling of the handling piece, there are still the following problems: if the handling piece is moved to the position close to the position to be placed and it is found that the placement angle is not appropriate, then the handling piece needs to be manually rotated to the appropriate angle until it is completely lowered, which requires multiple operators to operate simultaneously to complete the handling process, and the device has poor practicality. INVENTION CONTENTS

[0005] The utility model provides a adjustable arm support of pipe hoisting machine, solveed the problem that the pipe hoisting machine hoisting adjustment placement angle needs multiple workers to complete together in the prior art, improved the practicality of equipment.

[0006] The technical scheme of the utility model is as follows:

[0007] A adjustable arm support of pipe hoisting machine, including the chassis,

[0008] The first connecting arm is rotatably connected to the chassis, the first connecting arm is provided with a sliding groove, the second connecting arm is slidably connected in the sliding groove, the second connecting arm is provided with a first lifting steel wire rope and a second lifting steel wire rope, one end of the first lifting steel wire rope is fixedly provided with a first hook, one end of the second lifting steel wire rope is fixedly provided with a second hook, the chassis is provided with a first control structure for controlling the extension length of the first lifting steel wire rope and the second lifting steel wire rope, and the second connecting arm is provided with a second control structure for controlling the rotation of the first lifting steel wire rope relative to the second lifting steel wire rope.

[0009] Further, the first control structure comprises a first driving motor, a first placing groove and a second placing groove are fixed on an output shaft of the first driving motor, the first placing groove and the second placing groove are both cylindrical structures, the first lifting steel wire rope is fixedly wound with the first placing groove, and the second lifting steel wire rope is fixedly wound with the second placing groove.

[0010] Further, the second control structure comprises a rotating disc, a connecting piece is arranged at an end of the second connecting arm, a fixing frame is fixed on the connecting piece, a rotating groove is arranged on the fixing frame, the rotating disc is rotationally connected with the rotating groove, a first sliding hole and a second sliding hole are arranged on the rotating disc, the first lifting steel wire rope is slidably connected with the first sliding hole, and the second lifting steel wire rope is slidably connected with the second sliding hole.

[0011] Further, the connecting piece is fixedly connected with the second connecting arm through screw threads, a first turning hole and a second turning hole are arranged on the connecting piece, the first lifting steel wire rope passes through the first turning hole and is slidably connected with the first turning hole, and the second lifting steel wire rope passes through the second turning hole and is slidably connected with the second turning hole.

[0012] Further, a second driving motor is fixed on the top of the connecting piece, and an output shaft of the second driving motor is fixedly connected with the center of the rotating disc.

[0013] Further, a telescopic piece is arranged at the bottom of the sliding groove, a fixed end of the telescopic piece is fixedly connected with the bottom of the sliding groove, and a telescopic end of the telescopic piece is fixedly connected with the second connecting arm.

[0014] Further, a first supporting arm is rotationally connected on the base frame, a second supporting arm is rotationally connected on the first supporting arm, a third driving motor is fixed on the base frame, and an output shaft of the third driving motor is fixedly connected with the first supporting arm.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] The working process of the embodiment is as follows: when the carrying piece needs to be carried, the first hook and the second hook are fixed on both ends of the carrying piece at the same time, the first driving motor and the third driving motor are started to make the carrying piece separate from the ground, the pipe lifting machine is moved to the placing position of the carrying piece, the second driving motor is started to make the carrying piece rotate to a suitable placing angle, and finally the first driving motor and the second driving motor are used to place the carrying piece on the carrying position to be placed, and the first hook and the second hook are removed.

[0017] The utility model discloses a second control device is provided on the second connecting arm, when carrying the carrying piece to the carrying position of waiting to place, through the second control structure adjustment carrying piece angle of placement, so that carrying piece can be placed directly in the position of needing to place, need not manual rotation, the utility model discloses the worker of operation when carrying is less, has stronger practicality. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further detailed below in combination with the drawings and specific embodiment.

[0019] Figure 1 It is the structure schematic diagram of prior art for this embodiment;

[0020] Figure 2 It is the whole structure schematic diagram for this embodiment;

[0021] Figure 3 It is the structure schematic diagram of second control structure in this embodiment;

[0022] Figure 4 It is the connection structure schematic diagram of third drive motor in this embodiment;

[0023] Figure 5 It is the structure schematic diagram of first control structure in this embodiment;

[0024] Figure 6 It is the connection structure schematic diagram of first connecting arm and second connecting arm in this embodiment.

[0025] In the drawing:

[0026] 1, the base frame;11, first drive motor;111, first placement slot;112, second placement slot;2, first connecting arm;21, sliding slot;211, telescopic piece;3, second connecting arm;4, connecting piece;41, first steering hole;42, second steering hole;5, second drive motor;6, fixed frame;61, rotation slot;71, first hook;711, first lifting steel wire rope;72, second hook;721, second lifting steel wire rope;8, third drive motor;81, first support arm;82, second support arm;9, rotation disc;91, first sliding hole;92, second sliding hole. DETAILED DESCRIPTION

[0027] The technical scheme in the utility model embodiments will be described clearly and completely below in combination with the utility model embodiments, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are involved in the protection scope of the utility model.

[0028] AsFigures 2-5 As shown in the drawings, the embodiment provides an adjustable arm support of a pipe hoisting machine.

[0029] The first connecting arm 2 is rotatably arranged on the base frame 1, the sliding groove 21 is arranged in the first connecting arm 2, the second connecting arm 3 is slidingly arranged in the sliding groove 21, the first lifting steel wire 711 and the second lifting steel wire 721 are arranged on the second connecting arm 3, the first hook 71 is fixedly arranged at one end of the first lifting steel wire 711, the second hook 72 is fixedly arranged at one end of the second lifting steel wire 721, the first control structure is arranged on the base frame 1, and the first control structure is arranged on the base frame 1. The first lifting steel wire 711 and the second lifting steel wire 721 are used to control the extension length of the first lifting steel wire 711 and the second lifting steel wire 721, and the second control structure is arranged on the second connecting arm 3. The second control structure is arranged on the second connecting arm 3, and the second control structure is arranged on the second connecting arm 3. The first lifting steel wire 711 is used to control the rotation of the first lifting steel wire 711 relative to the second lifting steel wire 721.

[0030] The first supporting arm 81 is rotatably arranged on the base frame 1, the second supporting arm 82 is rotatably arranged on the first supporting arm 81, the third driving motor 8 is fixedly arranged on the base frame 1, and the first supporting arm 81 is fixedly connected with the output shaft of the third driving motor 8. The design is to control the rotation angle of the first connecting arm 2 by controlling the third driving motor 8.

[0031] The telescopic piece 211 is arranged at the bottom of the sliding groove 21, the fixed end of the telescopic piece 211 is fixedly connected with the bottom of the sliding groove 21, and the telescopic end of the telescopic piece 211 is fixedly connected with the second connecting arm 3. The telescopic piece 211 in the embodiment is a hydraulic cylinder or an air cylinder, wherein the hydraulic cylinder or the air cylinder is prior art, and the embodiment will not be described here.

[0032] The first control structure in the embodiment includes a first driving motor 11, and the first placing groove 111 and the second placing groove 112 are fixedly arranged on the output shaft of the first driving motor 11. The first placing groove 111 and the second placing groove 112 are both cylindrical structures, the first lifting steel wire 711 is fixedly wound with the first placing groove 111, and the second lifting steel wire 721 is fixedly wound with the second placing groove 112. Such design can control the extension length of the first lifting steel wire 711 and the second lifting steel wire 721 at the same time by using the first motor, thereby reducing the number of driving motors and the manufacturing cost of the product.

[0033] The second control structure in the embodiment comprises a rotating disc 9, the connecting piece 4 is arranged at the end of the second connecting arm 3, the fixing frame 6 is fixedly arranged on the connecting piece 4, the rotating groove 61 is arranged on the fixing frame 6, the rotating disc 9 is in rotating connection with the rotating groove 61, the first sliding hole 91 and the second sliding hole 92 are arranged on the rotating disc 9, the first lifting steel wire rope 711 is in sliding connection with the first sliding hole 91, and the second lifting steel wire rope 721 is in sliding connection with the second sliding hole 92. Such a design makes the rotating disc 9 rotate to drive the first lifting steel wire rope 711 and the second lifting steel wire rope 721 to rotate, so that the carrying piece connected with the first lifting steel wire rope 711 and the second lifting steel wire rope 721 rotates, and the placement position of the carrying piece is conveniently adjusted.

[0034] The second driving motor 5 in the embodiment is fixedly arranged at the top of the connecting piece 4, and the output shaft of the second driving motor 5 is fixedly connected with the center of the rotating disc 9. The rotation of the rotating disc 9 is controlled by the second driving motor 5, and the control end of the second motor can be added when driving, without adding an operating worker, so that the labor cost is reduced.

[0035] The connecting piece 4 and the second connecting arm 3 in the embodiment are fixedly connected through threads, the first rotating hole 41 and the second rotating hole 42 are arranged on the connecting piece 4, the first lifting steel wire rope 711 passes through the first rotating hole 41 and is in sliding connection with the first rotating hole 41, and the second lifting steel wire rope 721 passes through the second rotating hole 42 and is in sliding connection with the second rotating hole 42. Such a design makes the first lifting steel wire rope 711 and the second lifting steel wire rope 721 move when the second connecting arm 3 and the first connecting arm 2 move, so that the first lifting steel wire rope 711 and the second lifting steel wire rope 721 will not be separated from the second connecting arm 3.

[0036] The first driving motor 11, the second driving motor 5 and the third driving motor 8 in the embodiment are all two-phase motors.

[0037] The working process of the embodiment is as follows: when the carrying piece needs to be carried, the first hook 71 and the second hook 72 are fixed on both ends of the carrying piece at the same time, the first driving motor 11 and the third driving motor 8 are started to make the carrying piece separate from the ground, the pipe lifting machine is moved to the placement position of the carrying piece, the second driving motor 5 is started to make the carrying piece rotate to an appropriate placement angle, and finally the first driving motor 11 and the second driving motor 5 are used to place the carrying piece at the carrying position to be placed, and the first hook 71 and the second hook 72 are removed.

[0038] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable boom of a pipelayer, comprising a base frame (1), characterized in that: The base frame (1) is rotatably connected to a first connecting arm (2), a sliding groove (21) is provided in the first connecting arm (2), a second connecting arm (3) is slidingly connected in the sliding groove (21), a first lifting wire rope (711) and a second lifting wire rope (721) are provided on the second connecting arm (3), a first hook (71) is fixed to one end of the first lifting wire rope (711), and a second hook (72) is fixed to one end of the second lifting wire rope (721), a first control structure for controlling the extension length of the first lifting wire rope (711) and the second lifting wire rope (721) is provided on the base frame (1), and a second control structure for controlling the rotation of the first lifting wire rope (711) relative to the second lifting wire rope (721) is provided on the second connecting arm (3).

2. The adjustable boom of a pipelayer according to claim 1, characterized in that: The first control structure includes a first drive motor (11), and a first placement slot (111) and a second placement slot (112) are fixed on the output shaft of the first drive motor (11), and the first placement slot (111) and the second placement slot (112) are both cylindrical structures. The first lifting wire rope (711) is wound and fixed with the first placement slot (111), and the second lifting wire rope (721) is wound and fixed with the second placement slot (112).

3. The adjustable boom of a pipelayer according to claim 2, characterized in that: The second control structure includes a rotating disk (9), a connecting member (4) is provided at the end of the second connecting arm (3), a fixing frame (6) is fixed on the connecting member (4), a rotating groove (61) is provided on the fixing frame (6), the rotating disk (9) is rotatably connected to the rotating groove (61), the rotating disk (9) is provided with a first sliding hole (91) and a second sliding hole (92), the first lifting wire rope (711) is slidingly connected to the first sliding hole (91), and the second lifting wire rope (721) is slidingly connected to the second sliding hole (92).

4. The adjustable boom of a pipelayer according to claim 3, characterized in that: The connecting member (4) is fixed to the second connecting arm (3) by a threaded connection. The connecting member (4) is provided with a first steering hole (41) and a second steering hole (42). The first lifting wire rope (711) passes through the first steering hole (41) and is slidably connected to the first steering hole (41). The second lifting wire rope (721) passes through the second steering hole (42) and is slidably connected to the second steering hole (42).

5. The adjustable boom of a pipelayer according to claim 3, characterized in that: A second drive motor (5) is fixed to the top of the connecting member (4), and an output shaft of the second drive motor (5) is fixedly connected to the center of the rotating disk (9).

6. The adjustable boom of a pipelayer according to claim 1, characterized in that: A telescopic member (211) is provided at the bottom of the sliding groove (21), a fixed end of the telescopic member (211) is fixedly connected to the bottom of the sliding groove (21), and a telescopic end of the telescopic member (211) is fixedly connected to the second connecting arm (3).

7. The adjustable boom of a pipelayer according to claim 1, wherein: The base frame (1) is also rotatably connected to a first support arm (81), and the first support arm (81) is rotatably connected to a second support arm (82). A third drive motor (8) is also fixed to the base frame (1), and an output shaft of the third drive motor (8) is fixedly connected to the first support arm (81).

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