Hydraulic pipe piece turnover machine

Abstract

The utility model relates to the technical field of turnover equipment, in particular to a hydraulic pipe piece turnover machine. Which comprises a base frame and is characterized in that a mounting base plate is arranged on one side of the base frame, a control box is arranged at the top of the mounting base plate, a mounting frame is arranged in the center of the top of the base frame, and the mounting frame is formed by combining a first L-shaped support and a second L-shaped support. And efficient, safe and accurate duct piece overturning operation is achieved. A stable supporting structure is formed by the base frame and the symmetrically-arranged L-shaped supports and is matched with the control box integrated with the installation base plate, and the overall stability and operation convenience of equipment are guaranteed. A hydraulic pump driving motor is matched with a speed reducer to provide stable power output, and an independent cooling fan guarantees continuous and stable operation of the system; the two sets of turnover mechanisms are designed in a differentiated mode, and the stress distribution of the first turnover mechanism is optimized through double connecting supports.

Description

TECHNICAL FIELD

[0001] The utility model relates to a turnover equipment technical field, especially a hydraulic pipe piece turnover machine. BACKGROUND

[0002] The traditional pipe piece turnover operation has significant defects: in the shield tunnel construction, the 3-8 tons heavy concrete pipe piece needs to be turned over by 180 degrees, at present mainly relies on the crane to cooperate with manual operation, not only is inefficient (needs 4 people to cooperate operation, single time consumption is more than 30 minutes), also has serious safety hazard (pipe piece falling accident accounts for 23% of construction accidents), and the turnover precision is difficult to guarantee (angle error reaches ± 15 degrees). The existing hydraulic turnover equipment also has prominent problems: single oil cylinder drive leads to torque imbalance (pipe piece inclination rate exceeds 5%), anti-skid rubber pad is easy to age (friction coefficient reduces to 0.6 below), steel structure frame is heavy (12 meters span equipment dead weight reaches 12 tons), these defects seriously restrict the construction efficiency and quality.

[0003] Chinese patent discloses a pipe piece turnover machine (publication number: CN 204851295 U) including base, is equipped with support frame on the base, 4 support bars, support rod A, support rod B jointly constitute movable bracket, the both sides of support bar are equipped with at least 2 steel plates respectively and constitute the notched structure, rubber pad is buckled with support bar through the notch, simultaneously utilizes screw fixation;The both sides of rubber pad are low in the middle, the rear end of support frame is connected through hinge and both sides support bar;The base is equipped with hydraulic oil cylinder, but this pipe piece turnover machine has systemic problems such as low efficiency, great safety hazard, poor precision (± 15 ° error), equipment defects (single oil cylinder imbalance, anti-skid failure, structure is heavy), seriously restricts construction quality and safety, therefore needs a hydraulic pipe piece turnover machine. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the systemic problems such as low efficiency, great safety hazard, poor precision (± 15 ° error) of pipe piece turnover machine in prior art, equipment defects (single oil cylinder imbalance, anti-skid failure, structure is heavy) seriously restrict construction quality and safety's shortcoming, and proposes a hydraulic pipe piece turnover machine.

[0005] The utility model discloses a hydraulic pipe piece turnover machine, including base frame, its characterized in being: one side of base frame is equipped with installation base plate, the top of installation base plate is equipped with control box, the top center of base frame is equipped with mounting frame, the mounting frame is composed of first L type support and second L type support, be equipped with upstroke switch A and upstroke switch B between first L type support and second L type support, the both sides edge of base frame top is equipped with first support beam and second support beam respectively, be equipped with downstroke switch C in first support beam, be equipped with downstroke switch D in second support beam, one side of first L type support is equipped with first oil cylinder hinged seat, one side of second L type support is equipped with second oil cylinder hinged seat, one side of first L type support is equipped with first turnover mechanism, one side of second L type support is equipped with second turnover mechanism, be equipped with hydraulic pipe piece on first turnover mechanism and second turnover structure. Double L type support combination frame provides symmetrical stress structure, avoids the partial load (the measured anti-tilting ability improves 40%) when the pipe piece overturns;Four stroke switch layout realizes bidirectional up / down limit position double detection, and positioning error is less than or equal to ± 2 DEG. The base frame is separated from the installation base plate, which is convenient for expanding the frame length according to the size of the pipe piece.

[0006] Preferably, the control box top is equipped with hydraulic pump drive motor, one side of hydraulic pump drive motor is equipped with speed reducer, the other side of hydraulic pump drive motor is equipped with cooling fan. The speed reducer improves the motor output torque by 3-5 times, matches the hydraulic pump demand power (more than 15% energy saving);Cooling fan independent air duct design, control box internal temperature rise is less than or equal to 25 DEG C (the measured hydraulic oil temperature keeps 50 DEG C ± 5 DEG C).

[0007] Preferably, the first turnover structure includes a first L-shaped turnover support plate, a first connecting seat is provided on one side of the bottom of the first L-shaped turnover support plate and associated with the first support beam, a second connecting seat is provided on the other side of the bottom of the first L-shaped turnover support plate and associated with the first L-shaped support, a first hydraulic oil cylinder is provided on the bottom of the first L-shaped turnover support plate, one end of the first oil cylinder is associated with the first connecting seat and the first support beam, and the other end of the first oil cylinder is associated with the second connecting seat. The oil cylinder thrust is decomposed into vertical / horizontal component force through the double support, reducing the support bending moment (stress concentration is reduced by 30%); the double hinge points form a four-bar mechanism, and the pipe piece overturning angular velocity fluctuation rate is less than 8%.

[0008] Preferably, the second overturning structure comprises a second L-shaped overturning support plate, one side of the second L-shaped overturning support plate is provided with a third connecting support, the other side is provided with a fourth connecting support and is associated with the second L-shaped support, and the bottom of the second L-shaped overturning support plate is provided with a second hydraulic oil cylinder, one end of the second hydraulic oil cylinder is associated with the third connecting support, and the other end is associated with a second oil cylinder hinged seat. The asymmetric design allows the two overturning mechanisms to have an assembly error of 2-3mm, avoiding being stuck; the oil cylinder and the hinged seat are fixed on one side, and the replacement time is shortened to 15 minutes (compared with 45 minutes for the traditional structure).

[0009] Preferably, one side of the inner wall of the first L-shaped overturning support plate and the second L-shaped overturning support plate is provided with a plurality of multi-spring damping elements and is arranged side by side, and the other side is provided with an anti-skid rubber pad. The spring array can attenuate vibrations below 60Hz; the friction coefficient of the rubber pad is greater than or equal to 1.2, ensuring that the 5-ton pipe piece does not slide relative to each other.

[0010] Preferably, the main body of the first L-shaped overturning support plate and the second L-shaped overturning support plate is made of high-strength aluminum alloy, and the base frame and the mounting base plate are made of Q345B low-alloy steel. The aluminum alloy parts are 55% lighter than the steel parts, and the energy consumption of the equipment movement is reduced; the Q345B base is crack-free after 200,000 fatigue tests, and is suitable for open-air construction environment.

[0011] The utility model has the advantages that:

[0012] The application realizes efficient, safe and accurate pipe piece overturning operation through the cooperation of various functional components. The base frame and the symmetrically arranged L-shaped support form a stable support structure, which, together with the integrated control box of the mounting base plate, ensures the overall stability and operation convenience of the equipment. The hydraulic pump drive motor cooperates with the speed reducer to provide stable power output, and the independent cooling fan ensures the continuous and stable operation of the system. The two overturning mechanisms are designed differently, the first overturning mechanism optimizes the stress distribution through double connecting supports, the second overturning mechanism improves the assembly fault tolerance through unilateral hinging, and the obliquely arranged hydraulic oil cylinder realizes smooth overturning action. The travel switch system realizes double position detection, ensuring accurate control of the overturning angle. The combination of multi-spring damping elements and anti-skid rubber pads effectively absorbs impact and prevents pipe piece sliding. In terms of material selection, the high-strength aluminum alloy overturning support plate realizes lightweight, and the Q345B steel base frame ensures the structural strength. The whole system realizes automatic operation, precise positioning, multiple safety protection and convenient maintenance through modular design, fully meeting the high-standard requirements of large pipe piece overturning operation in shield construction, improving the operation efficiency by 20 times, and significantly reducing the risk of manual operation and equipment maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0014] Figure 1 It is a front view structural flow schematic diagram of the present application.

[0015] Figure 2 It is a front view structural flow schematic diagram of the present application.

[0016] Figure 3 It is a front view structural flow schematic diagram of the present application.

[0017] Figure 4 It is a right view structural flow schematic diagram of the present application.

[0018] Figure 5 It is a left view structural flow schematic diagram of the present application.

[0019] Figure 6 It is a top view structural flow schematic diagram of the present application.

[0020] In the figure: 1, control box; 2, installation base plate; 3, down stroke switch C; 4, first connecting support; 5, first support beam; 6, first hydraulic oil cylinder; 7, base frame; 8, first oil cylinder hinge seat; 9, first L-shaped support; 10, second L-shaped support; 11, second support beam; 12, down stroke switch D; 13, second oil cylinder hinge seat; 14, second hydraulic oil cylinder; 15, third connecting support; 16, multi-spring damping piece; 17, anti-skid rubber pad; 18, second L-shaped turnover support plate; 19, up stroke switch A; 20, up stroke switch B; 21, first L-shaped turnover support plate; 22, hydraulic pipe piece; 23, speed reducer; 24, hydraulic pump driving motor; 25, cooling fan. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] EMBODIMENT

[0023] Please refer to Figures 1-6As shown, a hydraulic pipe piece turnover machine includes a base frame 7, characterized in that: one side of the base frame 7 is provided with a mounting base plate 2, the top of the mounting base plate 2 is provided with a control box 1, the top center of the base frame 7 is provided with a mounting frame, the mounting frame is composed of a first L-shaped support 9 and a second L-shaped support 10, the first L-shaped support 9 and the second L-shaped support 10 are provided with an upstroke switch A19 and an upstroke switch B20, the top of the base frame 7 is provided with a first support beam 5 and a second support beam 11 on both sides, the first support beam 5 is provided with a downstroke switch C3, the second support beam 11 is provided with a downstroke switch D12, one side of the first L-shaped support 9 is provided with a first oil cylinder hinge seat 8, one side of the second L-shaped support 10 is provided with a second oil cylinder hinge seat 13, one side of the first L-shaped support 9 is provided with a first turnover mechanism, one side of the second L-shaped support 10 is provided with a second turnover mechanism, and the first turnover mechanism and the second turnover structure are provided with a hydraulic pipe piece 22. The double L-shaped support combined frame provides a symmetrical force structure to avoid pipe piece tilting (the actual anti-tilting ability is improved by 40%); the four stroke switch layout realizes double detection of the bidirectional up / down limit position, and the positioning error is ≤±2°; the base frame 7 and the mounting base plate 2 are designed separately, which facilitates the expansion of the frame length according to the size of the pipe piece.

[0024] In this embodiment, the top of the control box 1 is provided with a hydraulic pump driving motor 24, one side of the hydraulic pump driving motor 24 is provided with a speed reducer 23, and the other side of the hydraulic pump driving motor 24 is provided with a cooling fan 25. The speed reducer 23 increases the motor output torque by 3-5 times to match the hydraulic pump demand power (more than 15% energy saving); the cooling fan 25 is independently designed in the air duct, and the internal temperature rise of the control box 1 is ≤25℃ (the actual hydraulic oil temperature is maintained at 50±5℃).

[0025] In this embodiment, the first turnover structure includes a first L-shaped turnover support plate 21, one side of the bottom of the first L-shaped turnover support plate 21 is provided with a first connecting support 4 and is associated with the first support beam 5, the other side is provided with a second connecting support and is associated with the first L-shaped support 9, the bottom of the first L-shaped turnover support plate 21 is provided with a first hydraulic oil cylinder 6, one end of the first oil cylinder is associated with the first connecting support 4 and the first support beam 5, and the other end is associated with the second connecting support. The oil cylinder thrust is decomposed into vertical / horizontal components through double supports, reducing the support bending moment (stress concentration is reduced by 30%); double hinge points form a four-bar mechanism, and the pipe piece overturning angular velocity fluctuation rate is <8%.

[0026] In this embodiment, the second overturning structure includes a second L-shaped overturning support plate 18, one side of which is provided with a third connecting support 15, the other side is provided with a fourth connecting support and is associated with the second L-shaped support 10, and the bottom of the second L-shaped overturning support plate 18 is provided with a second hydraulic oil cylinder 14, one end of which is associated with the third connecting support 15, and the other end is associated with a second oil cylinder hinge seat 13. Asymmetric design allows 2-3mm assembly error of two overturning mechanisms to avoid jamming; one-sided fixation of the oil cylinder and the hinge seat shortens the replacement time to 15 minutes (compared with 45 minutes of traditional structure).

[0027] In this embodiment, the inner wall of the first L-shaped overturning support plate 21 and the second L-shaped overturning support plate 18 is provided with a plurality of multi-spring damping elements 16 and parallel arrangement design on one side, and is provided with an anti-skid rubber pad 17 on the other side. The spring array can attenuate vibration below 60Hz; the friction coefficient of the rubber pad is ≥1.2, which ensures that the 5-ton pipe segment does not slide relative to each other.

[0028] In this embodiment, the main body material of the first L-shaped overturning support plate 21 and the second L-shaped overturning support plate 18 is high-strength aluminum alloy, and the material of the base frame 7 and the mounting base plate 2 is Q345B low alloy steel. The aluminum alloy parts are 55% lighter than the steel ones, and the energy consumption of the equipment movement is reduced; the Q345B base is crack-free after 200,000 fatigue tests, and is suitable for open-air construction environment.

[0029] The implementation principle of this embodiment is:

[0030] (1) Start-up stage

[0031] When the operator presses the start button of the control box 1, the hydraulic pump driving motor 24 starts to work, driving the speed reducer 23 to reduce the speed (about 200rpm), so that the hydraulic pump outputs high-pressure oil (pressure about 25MPa), at the same time, the cooling fan 25 automatically runs to prevent the hydraulic oil from overheating.

[0032] (2) Pipe segment placement stage

[0033] When the pipe segment needs to be overturned, the worker places the pipe segment between the first L-shaped overturning support plate 21 and the second L-shaped overturning support plate 18; after the pipe segment contacts the support plate, the multi-spring damping element 16 is compressed (compression amount about 15mm), providing buffer to prevent pipe segment from being damaged by collision; at the same time, the anti-skid rubber pad 17 (the surface is provided with diamond pattern) tightly presses the pipe segment to prevent sliding (friction coefficient ≥1.2).

[0034] (3) Overturning stage

[0035] When the hydraulic system starts to supply oil, high pressure oil enters the first hydraulic cylinder 6 and the second hydraulic cylinder 14, pushing the cylinder piston to extend, the first hydraulic cylinder 6 is connected to the first support beam 5 (through the first connecting support 4) at one end and connected to the first L-shaped support 9 (through the second connecting support) at the other end, the second hydraulic cylinder 14 is connected to the second L-shaped support 10 (through the second cylinder hinge seat 13) at one end and connected to the third connecting support 15 at the other end, the cylinder pushes the overturning support plate to slowly overturn the pipe piece (0°→90°), when the pipe piece approaches 90°, the upstroke switch A19 and the upstroke switch B20 are triggered, the hydraulic system stops supplying oil, and the pipe piece stops at the set position.

[0036] (4) Return phase

[0037] When the pipe piece needs to be lowered, the hydraulic system supplies oil in reverse, the cylinder piston retracts, and the pipe piece slowly falls from 90° to the horizontal position, when the pipe piece approaches the horizontal position, the downstroke switch C3 or the downstroke switch D12 is triggered, the hydraulic system stops, and the pipe piece is stably returned to the original position, if the cylinder pressure is too high (more than 28MPa), the hydraulic system will automatically release pressure to prevent equipment damage, if the travel switch fails, the mechanical stop plate will forcibly stop the overturning to avoid the pipe piece falling.

[0038] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The basic principles, main features and advantages of the present application have been shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A hydraulic segment turning machine, comprising a base frame (7), characterized in that: The base frame (7) has a mounting base plate (2) on one side, and a control box (1) on the top of the mounting base plate (2). The base frame (7) has a mounting frame at the top center. The mounting frame is composed of a first L-shaped bracket (9) and a second L-shaped bracket (10). An upward stroke switch A (19) and an upward stroke switch B (20) are provided between the first L-shaped bracket (9) and the second L-shaped bracket (10). The base frame (7) has a first support beam (5) and a second support beam (11) on the top two sides respectively. A downward stroke switch C (3) is provided in the first support beam (5), and a downward stroke switch D (12) is provided in the second support beam (11). A first hydraulic cylinder hinge seat (8) is provided on one side of the first L-shaped bracket (9), and a second hydraulic cylinder hinge seat (13) is provided on one side of the second L-shaped bracket (10). A first flipping mechanism is provided on one side of the first L-shaped bracket (9), and a second flipping mechanism is provided on one side of the second L-shaped bracket (10). Hydraulic tube segments (22) are provided on the first flipping mechanism and the second flipping structure.

2. The hydraulic segment turning machine according to claim 1, characterized in that: The control box (1) is equipped with a hydraulic pump drive motor (24) on the top, a reducer (23) is provided on one side of the hydraulic pump drive motor (24), and a cooling fan (25) is provided on the other side of the hydraulic pump drive motor (24).

3. The hydraulic segment turning machine according to claim 1, characterized in that: The first flipping mechanism includes a first L-shaped flipping support plate (21). The first L-shaped flipping support plate (21) has a first connecting support (4) on one side of its bottom and is associated with a first support beam (5). The other side has a second connecting support and is associated with a first L-shaped bracket (9). The bottom of the first L-shaped flipping support plate (21) has a first hydraulic cylinder (6). One end of the first cylinder is associated with the first connecting support (4) and the first support beam (5), and the other end is associated with the second connecting support.

4. A hydraulic segment turning machine according to claim 1, characterized in that: The second flipping structure includes a second L-shaped flipping support plate (18). The second L-shaped flipping support plate (18) has a third connecting support (15) on one side and a fourth connecting support on the other side, which is associated with the second L-shaped bracket (10). The bottom of the second L-shaped flipping support plate (18) is provided with a second hydraulic cylinder (14). One end of the second hydraulic cylinder (14) is associated with the third connecting support (15), and the other end is associated with the second cylinder hinge seat (13).

5. A hydraulic segment turning machine according to claim 3, characterized in that: The first L-shaped flip support plate (21) and the second L-shaped flip support plate (18) are each provided with several multi-spring shock absorbers (16) on one side of their inner walls, arranged in parallel, and an anti-slip rubber pad (17) is provided on the other side.

6. A hydraulic segment turning machine according to claim 5, characterized in that: The main body of the first L-shaped flip support plate (21) and the second L-shaped flip support plate (18) is made of high-strength aluminum alloy, and the base frame (7) and the mounting base plate (2) are both made of Q345B low alloy steel.

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