CN106759329B - Steel casing lifting guide device and steel casing lifting method - Google Patents

Abstract

The invention discloses a steel casing hoisting guide device and a steel casing hoisting method, and relates to the field of bridge construction, wherein the steel casing hoisting guide device comprises a rotating device, a supporting device and a fixing device, and the rotating device comprises: the rotary supporting seat comprises a seat body and a rotating shaft positioned at the top end of the seat body; the steel casing supporting device comprises a rotating seat, one end of the rotating seat is rotatably connected to the rotating shaft, a casing supporting component is arranged on the rotating seat, and the casing supporting component comprises a first supporting component for supporting a steel casing and a blocking component for abutting against the end part of the steel casing. In the vertical overturning process of the steel casing, the rotating device is supported at the tail end of the steel casing and is used as a rotating fulcrum when the steel casing rotates and overturns, so that the steel casing cannot rub with the ground in the rotating process, and the local deformation and damage of a bottom opening of the steel casing are avoided.

Description

A kind of steel casing lifting guide device and steel casing lifting method

technical field

The invention relates to the field of bridge construction, in particular to a steel protective tube lifting guide device and a steel protective tube hoisting method.

Background technique

With the improvement of the level of science and technology, the construction technology of large-scale bridges has also been continuously innovated and developed rapidly. Among them, the lifting and installation of steel casings are more and more widely used in lakes and rivers. Steel casings are mostly used in contact with the ground or sand. Or use the method of increasing the local rigidity of the inner cross support to carry out the lifting and installation operation. The existing construction method of the steel casing is easy to slip and rub with the contact surface during the lifting and erection process, resulting in local deformation and damage of the bottom of the steel casing.

Therefore, it is necessary to design a steel casing lifting guide device and a steel casing lifting method to solve the above problems.

SUMMARY OF THE INVENTION

In view of the defects existing in the prior art, the purpose of the present invention is to provide a steel casing lifting guide device and a steel casing lifting method which do not damage the steel casing.

In order to achieve the above purpose, the present invention adopts a steel casing lifting guide device, which includes a rotating device, a supporting device and a fixing device. A fulcrum, the supporting device is used to support the steel casing together with the rotating device when the steel casing is in a horizontal state, and the fixing device is used to support the steel casing together with the rotating device when the steel casing is rotated to a vertical state , the rotating device includes:

a rotating support base, the rotating support base includes a base body and a rotating shaft located at the top of the base body;

a rotating seat, one end of the rotating seat is rotatably connected to the rotating shaft;

a protective sleeve supporting part, the protective sleeve supporting part is mounted on the rotating seat, and the protective sleeve supporting part comprises a first supporting part for supporting the steel protective sleeve and a first supporting part for abutting the end of the steel protective sleeve stop part.

On the basis of the above technical solution, the rotating base includes a first part and a second part that are connected to each other and are perpendicular to each other, the first support member is located on the top surface of the first part, and the stop member is located on the second part. part is adjacent to the side of the first part.

On the basis of the above technical solution, the rotating support base is rotatably connected to the bottom of the second part close to the first part.

On the basis of the above technical solution, the bottom surface of the second part is installed with a first support foot away from the bottom surface of the first part.

On the basis of the above technical solution, the first support member is provided with an arc-shaped support surface, and the circularity of the arc-shaped support surface is the same as that of the steel casing.

On the basis of the above technical solution, the inner radius of the arc-shaped support surface is 40% of the diameter of the steel casing.

On the basis of the above technical solutions, the support device includes a main body portion, the bottom of the main body portion is provided with a second supporting leg, and the main body portion is provided with a second supporting member.

On the basis of the above technical solution, the fixing device includes a first fixing device and a second fixing device, the first fixing device is provided with a fixing bayonet, and the second fixing device is provided with two spaced apart Secure the stopper.

The present invention also provides a method for hoisting a steel shroud using a steel shroud hoisting guide, the method comprising the following steps:

S1, place the rotating device and the supporting device at a certain distance, and place the steel casing on the rotating device and the supporting device;

S2. Install a spreader and a wire rope at the end of the steel casing away from the rotating device, and connect the hoisting equipment;

S3. The hoisting equipment starts to lift, rotates the steel casing, and when the steel casing rotates, the rotating seat rotates synchronously with the steel casing;

S4, the steel casing is rotated to a vertical state, and a fixing device is arranged at the bottom of the steel casing away from the rotating device.

On the basis of the above technical solution, the fixing device includes a first fixing device and a second fixing device, the first fixing device is provided with a fixing bayonet, and the second fixing device is provided with two spaced apart When the steel casing is rotated to a vertical state, a first fixing device is installed at the end of the bottom of the steel casing away from the rotating device, and a second fixing device is installed in the middle area of the steel casing, and the fixed bayonet is locked. Holding the steel protective tube, the two fixed baffles are respectively abutted on both sides of the bottom of the steel protective tube.

Compared with the prior art, the advantages of the present invention are:

(1) During the vertical overturning of the steel casing, the rotating device is supported at the end of the steel casing and serves as a pivot point when the steel casing is turned over. Therefore, the steel casing will not rub against the ground during the rotation process, so that the The local deformation and damage of the bottom mouth of the protective tube are avoided.

(2) The rotating support base supports the rotating base, and the rotating base rotates synchronously when the steel casing rotates, which makes the steel casing easier to rotate during lifting, and further avoids the movement of the rotating device relative to the ground, improving the stability and safety of lifting. sex.

(3) The protective tube support member includes a first support member for supporting the steel protective tube and a stop member for abutting the end of the steel protective tube, so as to limit the steel protective tube in the horizontal and vertical directions , to prevent the steel casing from moving on the rotating device during rotation, and to improve the stability of the steel casing during rotation.

(4) The supporting device and the rotating device jointly support the steel casing when the steel casing is in a horizontal state, and the fixing device and the rotating device jointly support the steel casing when the steel casing is rotated to a vertical state, so that the steel casing is in the vertical state. It can be placed stably on the ground before and after the rotation.

(5) The first fixing device is provided with a fixed bayonet, and the second fixing device is provided with two fixed blocking pieces arranged at intervals, and the fixed bayonet clamps the steel protective tube, and the two fixed blocking pieces are respectively It is pressed against both sides of the bottom of the steel casing to improve the stability of the steel casing in the vertical state.

Description of drawings

Fig. 1 is a schematic diagram of the steel casing lifting and guiding device of the present invention when the steel casing is in a horizontal state;

Fig. 2 is the structural schematic diagram of the rotating device of the steel casing lifting and guiding device of the present invention;

Fig. 3 is the structural schematic diagram of the support device of the steel casing lifting guide device of the present invention;

Figure 4 is a schematic diagram of the steel casing lifting and guiding device of the present invention when the steel casing is in a vertical state.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , the present invention provides a steel casing lifting guide device, which includes a rotating device A, a supporting device B and a fixing device C. The rotating device A is used to support the end of the steel casing and allow the steel casing to turn over. The supporting device B is used to support the steel casing with the rotating device A when the steel casing is in a horizontal state, and the fixing device C is used to support the rotating device A when the steel casing is rotated to a vertical state. Steel casing. Since the steel casing has a rotating device A as a fulcrum during the rotation process, it will not rub against the ground, thereby avoiding local deformation and damage of the bottom of the casing.

As shown in FIG. 1 and FIG. 2 , the rotating device A includes a rotating support base 1 , a rotating base 2 and a protective tube support member 3 , and the rotating support base 1 includes a base body 10 and a rotating shaft 11 located at the top of the base body 10 . One end of the rotating base 2 It is rotatably connected to the rotating shaft 11. When the rotating device A is in use, the rotating support base 1 is supported on the ground, and the rotating base 2 can rotate relative to the rotating support base 1. When the steel casing is lifted, the rotating base 2 and the steel casing rotate synchronously , which makes the steel casing easier to rotate during lifting, further prevents the rotating device from moving relative to the ground, and improves the stability and safety of the lifting.

The protective sleeve supporting member 3 is mounted on the rotating base 2, and the protective sleeve supporting member 3 includes a first supporting member 30 for supporting the steel protective sleeve and a blocking member 31 for abutting the end of the steel protective sleeve. The rotating base 2 includes a first part 20 and a second part 21 that are connected to each other and are perpendicular to each other. . Therefore, the steel protective tube is limited in the horizontal direction and the vertical direction, so as to prevent the steel protective tube from moving on the rotating device A during rotation, and improve the stability of the steel protective tube during rotation.

The rotating support base 1 is rotatably connected with the second part 21 near the bottom of the first part 20 . The bottom surface of the second part 21 is far from the bottom surface of the first part 20 and a first supporting foot 22 is installed. When the rotating shaft 11 is close to the steel casing, when the steel casing rotates, the required torque is smaller and the rotation is easier.

The first support part 30 is provided with an arc-shaped support surface, the circularity of the arc-shaped support surface is the same as that of the steel casing, and the inner radius of the arc-shaped supporting surface is 40% of the diameter of the steel casing, so that the steel casing The cartridge can be stably placed on the first support member 30 .

As shown in FIG. 1 and FIG. 3 , the support device B includes a main body portion 4 , the bottom of the main body portion 4 is provided with a second supporting leg 40 , and the main body portion 4 is provided with a second supporting member 41 . The supporting device B is used to support the steel casing together with the rotating device A when the steel casing is in a horizontal state. The structure of the second support member 41 is the same as that of the first support member 30 to stably support the steel casing.

As shown in FIG. 4 , the fixing device C includes a first fixing device 5 and a second fixing device 6 , the first fixing device 5 is provided with a fixing bayonet 50 , and the second fixing device 6 is provided with two spacers The fixed stopper 60 is provided. The fixing device C is used to support the steel casing together with the rotating device A when the steel casing is rotated to a vertical state.

As shown in Figure 1 and Figure 4, the following describes in detail a method for hoisting a steel shroud using a hoisting guide device for a steel shroud through specific embodiments, and the method includes the following steps:

S1. Place the rotating device A and the supporting device B at a certain distance, and place the steel casing on the rotating device A and the supporting device B. The distance of the interval and the number of supporting devices B are based on the size of the steel casing. The setting shall be subject to the stable support of the steel casing.

S2, install the spreader 8 and the wire rope 7 at the end of the steel casing away from the rotating device A and connect the lifting equipment;

S3. The hoisting equipment starts to lift, rotates the steel casing, and when the steel casing rotates, the rotating seat 2 rotates synchronously with the steel casing;

S4, the steel casing is rotated to a vertical state, and a fixing device C is set at the bottom of the steel casing away from the rotating device A. The fixing device C includes a first fixing device 5 and a second fixing device 6 , the first fixing device 5 is provided with a fixing bayonet 50 , and the second fixing device 6 is provided with two fixed blocking pieces 60 arranged at intervals , when the steel casing is rotated to a vertical state, install the first fixing device 5 at the end of the bottom of the steel casing away from the rotating device A, install the second fixing device 6 in the middle area of the steel casing, and the fixing bayonet 50 To hold the steel protective tube, the two fixed baffles 60 are respectively abutted on both sides of the bottom of the steel protective tube. It can effectively improve the stability of the steel casing in the vertical state.

During the vertical overturning process of the steel casing, the rotating device A is supported on the end of the steel casing and serves as a pivot point when the steel casing is turned over. Therefore, the steel casing will not rub against the ground during the rotating process, thus avoiding the need for Local deformation and damage to the bottom of the protective tube.

The present invention is not limited to the above-mentioned embodiments. For those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection of the present invention. within the range. Contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims (5)

1. A steel casing lifting guide, comprising a rotating device (A), a supporting device (B) and a fixing device (C), the rotating device (A) being used to support the end of the steel casing and supply the steel casing The supporting device (B) is used to support the steel casing together with the rotating device (A) when the casing is in a horizontal state, and the fixing device (C) is used for the steel casing. When the cylinder is rotated to a vertical state, the steel casing is supported together with the rotating device (A), characterized in that the rotating device (A) includes: a rotating support base (1), the rotating support base (1) includes a base body (10) and a rotating shaft (11) located at the top of the base body (10); a rotating seat (2), one end of the rotating seat (2) is rotatably connected to the rotating shaft (11); A protective barrel supporting member (3), the protective barrel supporting member (3) is mounted on the rotating seat (2), and the protective barrel supporting member (3) includes a first supporting member for supporting a steel protective barrel (30) and a stop member (31) for abutting the end of the steel casing; The rotating seat (2) includes a first part (20) and a second part (21) that are connected to each other and are perpendicular to each other, the first support member (30) is located on the top surface of the first part (20), and the blocking The stop member (31) is located on the side of the second part (21) close to the first part (20); The rotating support base (1) is rotatably connected with the second part (21) near the bottom of the first part (20); A first support foot (22) is installed on the bottom surface of the first part (20) away from the bottom surface of the second part (21); The fixing device (C) includes a first fixing device (5) and a second fixing device (6), the first fixing device (5) is provided with a fixing bayonet (50), and the second fixing device ( 6) There are two fixed baffles (60) arranged at intervals. 2 . The lifting and guiding device for a steel casing according to claim 1 , wherein the first support member ( 30 ) is provided with an arc-shaped support surface, and the circularity of the arc-shaped support surface is the same as the roundness of the arc-shaped support surface. 3 . The steel casings have the same roundness. 3 . The lifting and guiding device for a steel casing according to claim 2 , wherein the inner radius of the arc-shaped supporting surface is 40% of the diameter of the steel casing. 4 . 4. A steel casing lifting guide device according to claim 1, characterized in that: the support device (B) comprises a main body part (4), and the bottom of the main body part (4) is provided with a second supporting foot (40), a second support member (41) is provided on the main body portion (4). 5. A steel casing lifting method using the steel casing lifting guide described in any one of claims 1-4, wherein the method comprises the following steps: S1. Place the rotating device (A) and the supporting device (B) at a certain distance, and place the steel casing on the rotating device (A) and the supporting device (B); S2. Install a sling and a wire rope at the end of the steel casing away from the rotating device (A) and connect the hoisting equipment; S3. The hoisting equipment starts to lift, rotates the steel casing, and when the steel casing rotates, the rotating seat (2) rotates synchronously with the steel casing; S4. The steel casing is rotated to a vertical state, and a fixing device (C) is set at the bottom of the steel casing away from the rotating device (A); The fixing device (C) includes a first fixing device (5) and a second fixing device (6), the first fixing device (5) is provided with a fixing bayonet (50), and the second fixing device ( 6) There are two fixed baffles (60) arranged at intervals. When the steel casing is rotated to a vertical state, a first fixing device (5) is installed at the end of the bottom of the steel casing away from the rotating device (A). A second fixing device (6) is installed in the middle area of the steel casing, the fixing bayonet (50) holds the steel casing, and the two fixing baffles (60) are respectively abutted on both sides of the bottom of the steel casing.

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