A method of installing a pc post

Abstract

The application provides a PC column mounting method and relates to the technical field of PC column mounting, which comprises the following steps: a control line d with the same size as the PC column is arranged around the PC column mounting position on the ground; the perpendicularity of the steel bars at the PC column mounting position is checked; the perpendicularity of the steel bars with abnormal perpendicularity is adjusted; a laser is installed according to the position of the control line d and a reference point arranged on the light position sensor; a Mecanum wheel forklift is driven to the PC column; and the PC column is lifted by using the multi-point lifting mode to avoid damage to the PC column during lifting. Meanwhile, the automatic alignment mode is used for the alignment of the PC column and the pre-buried steel bars on the ground, so that the problems of time-consuming and high risk caused by manual alignment in the process of mounting the PC column are solved.

Description

Technical Field

[0001] This invention relates to the field of PC column installation technology, and more specifically to a PC column installation method. Background Technology

[0002] PC columns (precast concrete columns) are commonly used precast components on construction sites. During the installation of PC columns, the lifting process, due to the use of single-sided lifting, is prone to damage at the column base due to the lack of fixed support points, resulting in surface peeling, scratches, minor cracks, and other general quality defects. Furthermore, during installation, once the PC column is lifted above the pre-embedded reinforcing bars in the ground, the bars need to be inserted into the pre-drilled holes at the bottom of the PC column. This process requires manual adjustment, which is time-consuming due to the weight of the PC column and the need for proper alignment. Moreover, manual adjustment during this process is inherently dangerous. Summary of the Invention

[0003] This invention provides a method for installing PC columns. By using a multi-point lifting method, damage to the PC columns during the lifting process is avoided. At the same time, an automatic alignment method is used to align the PC columns with the pre-embedded steel bars in the ground, which solves the problems of excessive time consumption and great danger in the existing manual alignment process for installing PC columns.

[0004] In view of the above problems, the technical solution proposed by the present invention is as follows:

[0005] A method for installing precast concrete (PC) columns includes a Mecanum wheel forklift, on which a fork carriage is mounted. Two grippers are sequentially mounted vertically on the fork carriage. Light position sensors, parallel to the ground, are mounted on both sides of the grippers below the fork carriage. The method also includes a controller communicatively connected to the Mecanum wheel forklift and the light position sensors, the controller driving the Mecanum wheel forklift. The method comprises the following steps:

[0006] A control line d, with the same size as the PC column, is set around the installation location of the PC column on the ground.

[0007] Check the verticality of the reinforcing bars at the installation location of the PC column, and adjust the verticality of the reinforcing bars with abnormal verticality.

[0008] Based on the position of the control line d and the reference point set on the light position sensor, the positions of the lasers set on both sides of the PC column are determined, and the control lines ac are popped out to locate the positions of the lasers on both sides of the PC column, thus obtaining two positioning points;

[0009] The laser is installed according to the positioning point, wherein the axis of the laser coincides with the positioning point;

[0010] After the PC column is lifted and made vertical using two lifting devices, it is moved to a position 15cm above the reinforcing bar and its verticality is adjusted to make it completely vertical.

[0011] Drive the Mecanum wheel forklift to the PC column and control the clamp to clamp the PC column;

[0012] When the laser is turned on, the light position sensor detects the position of the light emitted by the laser. Based on the set reference point position, the controller automatically controls the Mecanum wheel forklift to adjust the position of the PC column through the clamp.

[0013] When the light position sensor detects that the light emitted by the laser coincides with the reference point, the PC column is lowered vertically, and at the same time, the Mecanum wheel forklift is controlled to lower the fork frame so that the PC column is connected to the steel bar on the ground.

[0014] After the support rod is installed to fix the PC column, the clamp is controlled to release the PC column and the Mecanum wheel forklift is driven to move to the next PC column.

[0015] Furthermore, lifting the PC column specifically includes the following steps:

[0016] Connect the main lifting equipment to the lifting ring at one end of the PC column, tie several slings to one end of the PC column, and connect the auxiliary lifting equipment to the slings;

[0017] During lifting, the main lifting equipment and the auxiliary lifting equipment lift simultaneously. When the PC column is raised to 90cm, the auxiliary lifting equipment stops raising the height of the PC column, while the main lifting equipment continues to raise the height of the PC column until the PC column is vertical.

[0018] Remove all the slings and move the auxiliary lifting equipment.

[0019] Furthermore, the clamp includes a base, inside which a hydraulic cylinder is disposed. The output shaft of the hydraulic cylinder passes through the side wall of the base and is connected to a clamping arm outside the base. The hydraulic cylinder is communicatively connected to the controller.

[0020] Furthermore, the clamping arm includes a clamping plate and a backing plate vertically connected to its inner side.

[0021] Furthermore, an anti-slip pad is provided on the side of the clamp and the backing plate that contacts the PC column.

[0022] Furthermore, the light position sensor includes a protective housing fixedly connected to the outside of the clamp, and a light sensor array consisting of several light sensors is provided at the bottom of the protective housing.

[0023] Furthermore, the reference point is a specific light sensor on the light sensor array.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. By using a main lifting device and an auxiliary lifting device to lift the PC column simultaneously, after the PC column is lifted, the auxiliary lifting device stops raising the height of the PC column, while the main lifting device continues to raise the height of the PC column until the PC column is vertical, thus avoiding the problem of damage caused by the lack of fixed support points at the column base.

[0026] 2. During the process of aligning the holes at the bottom of the PC column with the pre-embedded steel bars in the ground, the Mecanum wheel forklift fixes the position of the PC column with the clamp, then detects the position of the laser through the light position sensor, and automatically adjusts the position of the PC column according to the sensed position so that the reference point and the positioning point coincide to complete the alignment work. Compared with the manual alignment method, it not only takes less time, but the adjustment process can also be completed automatically, which solves the problem of the danger of manual alignment in the existing PC column installation process.

[0027] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0028] Figure 1 This is a schematic flowchart of the PC column installation method disclosed in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the PC column mounting device for adjusting the position of the PC column as disclosed in an embodiment of the present invention;

[0030] Figure 3 for Figure 2 A schematic diagram of the structure after removing the PC columns;

[0031] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0032] Figure 5 This is a perspective view of the clamp disclosed in an embodiment of the present invention;

[0033] Figure 6This is a schematic diagram of the internal structure of the clamp disclosed in an embodiment of the present invention;

[0034] Figure 7 This is a communication block diagram of the PC column mounting device disclosed in an embodiment of the present invention.

[0035] Reference numerals: 1. Mecanum wheel forklift; 11. Fork carriage; 2. Clamp; 21. Base; 22. Clamping arm; 221. Clamping plate; 222. Backing plate; 223. Anti-slip mat; 23. Hydraulic cylinder; 3. Light position sensor; 31. Protective housing; 32. Light sensor; 4. Laser; 5. Controller; 6. Control line a; 7. Control line b; 8. Control line c; 9. Control line d; 10. Reinforcing bar; 111. PC column. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] like Figure 1-7 As shown, a PC column installation method includes the following steps:

[0038] S1, set a control line d9 with the same size as the PC column 111 around the installation position of the ground PC column 111;

[0039] It should be noted that the shape, size, and position of the control line d9 are completely consistent with the shape, size, and installation position of the PC column 111 base on the ground.

[0040] S2, check the verticality of the steel bar 10 at the installation position of PC column 111, and adjust the verticality of the steel bar 10 with abnormal verticality.

[0041] Specifically, the verticality of each pre-embedded steel bar 10 on the ground is measured, and the verticality of the steel bar 10 is calibrated when an abnormality is found.

[0042] S3. Based on the position of the control line d9 and the reference point set on the light position sensor 3, determine the position of the laser 4 set on both sides of the PC column 111, and pop out the control lines a6-c respectively to locate the position of the laser 4 on both sides of the PC column 111, and obtain two positioning points.

[0043] It should be noted that the reference point is set according to the actual situation, and its range should be within the light sensing area of ​​the light position sensor 3. After the clamp 2 clamps the PC column 111, since the position of the light position sensor 3 and the position of the PC column 111 surface are fixed, the distance between the control line b7 and the control line c8 and the control line a6 is determined according to the position of the reference point on the light position sensor 3 on both sides of the PC column 111 and the position of the control line d9. At the same time, the control line a6 is set to position the positioning point on the control line b7 and the control line c8.

[0044] In one embodiment, the positions of the reference points on the light position sensors 3 on both sides of the PC column 111 are set to be the same. Based on the positions of the reference points on the light position sensors 3 on both sides of the PC column 111 and the position of the control line d9, the distances between the control line b7 and the control line c8 and the control line a6 are determined respectively. At the same time, a control line a6 is set to locate the positioning points on the control line b7 and the control line c8.

[0045] In another embodiment, the positions of the reference points on the light position sensors 3 on both sides of the PC column 111 are set to be different. Based on the positions of the reference points on the light position sensors 3 on both sides of the PC column 111 and the position of the control line d9, the distances between the control line b7 and the control line c8 and the control line a6 are determined respectively. At the same time, two control lines a6 are set to be used to locate the positioning points on the control lines b7 and c8 respectively.

[0046] S4, Install laser 4 according to the positioning point, wherein the axis of laser 4 coincides with the positioning point;

[0047] It should be noted that the light emitted by laser 4 is vertically upward.

[0048] S5. After lifting PC column 111 with two lifting devices and making it vertical, move it to 15cm above the rebar 10 and adjust its verticality to make it completely vertical.

[0049] Specifically, lifting PC column 111 includes the following steps:

[0050] S5a, connect the main lifting equipment to the lifting ring at one end of the PC column 111, tie several slings to one end of the PC column 111, and connect the auxiliary lifting equipment to the slings;

[0051] S5b, during lifting, the main lifting equipment and the auxiliary lifting equipment lift at the same time. When the PC column 111 is raised to 90cm, the auxiliary lifting equipment stops raising the height of the PC column 111, and the main lifting equipment continues to raise the height of the PC column 111 until the PC column 111 is vertical.

[0052] S5c, remove all slings and move the auxiliary lifting equipment.

[0053] It should be noted that in step S5, the PC column 111 needs to be moved directly above the reinforcing bar 10 in order to align the PC column 111.

[0054] S6, drive the Mecanum wheel forklift 1 to the PC column 111, and control the clamp 2 to clamp the PC column 111;

[0055] In one embodiment, the Mecanum wheel forklift 1 can be manually driven to the PC column 111 by a person, and the gripper 2 can be controlled by the controller 5 to clamp the PC column 111.

[0056] In another embodiment, the Mecanum wheel forklift 1 is remotely driven to the PC column 111 by the controller 5, and the clamp 2 is controlled by the controller 5 to clamp the PC column 111.

[0057] S7, turn on laser 4, light position sensor 3 senses the position of the light emitted by laser 4, and according to the set reference point position, controller 5 automatically controls Mecanum wheel forklift 1 to adjust the position of PC column 111 through clamp 2;

[0058] Specifically, it includes the following steps:

[0059] S71, the controller 5 calculates the adjustment amount required to make the reference points on both sides coincide with the positioning points on both sides based on the position of the light emitted by the laser 4 at the two positioning points sensed by the light position sensors 3 on both sides of the PC column 111.

[0060] S72, the controller 5 drives the Mecanum wheel forklift 1 to move according to the calculated adjustment amount, and drives the PC column 111 to move through the clamp 2. After the reference points on both sides coincide with the positioning points on both sides, the hole at the bottom of the PC column 111 coincides with the steel bar 10 embedded in the ground, and the alignment work is completed.

[0061] S8, when the light position sensor 3 senses that the light emitted by the laser 4 coincides with the reference point, the PC column 111 is lowered vertically, and at the same time, the Mecanum wheel forklift 1 is controlled to lower the fork 11 so that the PC column 111 is connected to the steel bar 10 on the ground.

[0062] In a preferred embodiment, a detachable horizontal sensor can be installed on the surface of the PC column 111 to detect the verticality of the PC column 111. At the same time, the controller 5 is communicatively connected to the horizontal sensor. When the verticality of the PC column 111 is abnormal, the controller 5 controls the Mecanum wheel forklift 1 to adjust the tilt angle of the fork carriage 11 to control the verticality of the PC column 111 based on the detected verticality, which facilitates installation.

[0063] S9, after the support rod is fixed to the PC column 111, control the clamp 2 to release the PC column 111 and drive the Mecanum wheel forklift 1 to move to the next PC column 111.

[0064] like Figure 2-7 As shown, a PC column 111 mounting device includes a Mecanum wheel forklift 1, a fork carriage 11 on the Mecanum wheel forklift 1, two grippers 2 installed vertically on the fork carriage 11, light position sensors 3 parallel to the ground installed on both sides of the grippers 2 below the fork carriage 11, and a controller 5 communicatively connected to the Mecanum wheel forklift 1 and the light position sensors 3. The controller 5 is used to drive the Mecanum wheel forklift 1.

[0065] like Figure 2-7 As shown, the clamp 2 includes a base 21, and a hydraulic cylinder 23 is provided inside the base 21. The output shaft of the hydraulic cylinder 23 passes through the side wall of the base 21 and is connected to the clamping arm 22 outside the base 21. The hydraulic cylinder 23 is communicatively connected to the controller 5.

[0066] Specifically, the clamping arm 22 includes a clamping plate 221 and a backing plate 222 vertically connected to its inner side. The backing plate 222 and the clamping plate 221 are used to abut against the surface of the PC post 111 to clamp the PC post 111.

[0067] In a preferred embodiment, an anti-slip pad 223 is provided on the side of the clamping plate 221 and the backing plate 222 that contacts the PC column 111 to enhance the friction during the clamping process of the PC column 111. The anti-slip pad 223 is made of nitrile rubber and its surface may be provided with protrusions or grooves to further enhance the friction.

[0068] like Figure 2-7 As shown, the light position sensor 3 includes a protective housing 31 fixedly connected to the outside of the clamp 221. At the bottom of the protective housing 31, there is a light sensor 32 array consisting of several light sensors 32. After the light emitted by the laser 4 is detected by the light sensors 32 on the light sensor 32 array, the distance between the laser 4 and the reference point can be calculated and the adjustment amount of the displacement of the Mecanum wheel forklift 1 can be controlled.

[0069] It should be noted that the reference point is a specific light sensor 32 on the light sensor 32 array.

[0070] Specifically, the present invention proposes a PC column installation method that avoids damage to the PC column 111 during the lifting process by adopting a multi-point lifting method, and at the same time adopts an automatic alignment method to align the PC column 111 with the ground-embedded steel bars 10, thus solving the problems of excessive time consumption and great danger in the existing PC column 111 installation process by using manual alignment.

[0071] It should be noted that the specific models and specifications of the Mecanum wheel forklift 1, hydraulic cylinder 23, light sensor 32, laser 4, and controller 5 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0072] The power supply and operating principles of the Mecanum wheel forklift 1, hydraulic cylinder 23, light sensor 32, laser 4, and controller 5 are clear to those skilled in the art and will not be described in detail here.

[0073] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A PC column installation method, comprising a Mecanum wheel forklift (1), a fork frame (11) is arranged on the Mecanum wheel forklift (1), characterized in that, The vertical direction of the fork frame (11) is sequentially provided with two clamps (2), the two sides of the clamp (2) below the fork frame (11) are provided with light position sensors (3) parallel to the ground, and the controller (5) in communication connection with the Mecanum wheel forklift (1) and the light position sensor (3) is used for driving the Mecanum wheel forklift (1), and the controller (5) comprises the following steps: A control line d (9) consistent with the size of the PC column (111) is arranged around the installation position of the PC column (111) on the ground; The perpendicularity of the steel bars (10) at the installation position of the PC column (111) is checked, and the perpendicularity of the steel bars (10) with abnormal perpendicularity is adjusted; According to the position of the control line d (9) and the reference point arranged on the light position sensor (3), the positions of the lasers (4) arranged on both sides of the PC column (111) are determined, and the control line a (6)-c is popped out respectively to position the positions of the lasers (4) on both sides of the PC column (111), so as to obtain two positioning points; The lasers (4) are installed according to the positioning points, wherein the axes of the lasers (4) coincide with the positioning points; After the PC column (111) is lifted vertically by using two lifting devices, the PC column (111) is moved to a position 15 cm above the steel bars (10) and the perpendicularity thereof is adjusted so as to be completely vertical; The Mecanum wheel forklift (1) is driven to the PC column (111), and the clamp (2) is controlled to clamp the PC column (111); The laser (4) is turned on, the light position sensor (3) senses the position of the light emitted by the laser (4), according to the position of the set reference point, the controller (5) automatically controls the Mecanum wheel forklift (1) to adjust the position of the PC column (111) through the clamp (2); When the light emitted by the laser (4) coincides with the reference point sensed by the light position sensor (3), the PC column (111) is lowered vertically, and the Mecanum wheel forklift (1) is controlled to lower the fork frame (11) synchronously, so that the PC column (111) is connected with the steel bars (10) on the ground; After the PC column (111) is fixed by installing a support rod, the clamp (2) is controlled to release the PC column (111), and the Mecanum wheel forklift (1) is driven to move to the next PC column (111).

2. A method of installing a PC column according to claim 1, wherein: The lifting of the PC column (111) comprises the following steps: The main lifting device is connected with the lifting ring at one end of the PC column (111), and a plurality of lifting belts are bound to the one end of the PC column (111), and the auxiliary lifting device is connected with the lifting belts; During lifting, the main lifting device and the auxiliary lifting device lift simultaneously, when the PC column (111) is lifted to 90 cm, the auxiliary lifting device stops lifting the height of the PC column (111), and the main lifting device continues to lift the height of the PC column (111) to vertical; All the lifting belts are removed, and the auxiliary lifting device is removed.

3. The method of claim 1, wherein: The clamp (2) comprises a base (21), a hydraulic cylinder (23) is arranged inside the base (21), an output shaft of the hydraulic cylinder (23) is connected with a clamp arm (22) outside the base (21) through a side wall of the base (21), and the hydraulic cylinder (23) is in communication connection with the controller (5).

4. A method of installing a PC column according to claim 3, wherein: The clamp arm (22) comprises a clamp plate (221) and a back plate (222) which is vertically connected with the inner side of the clamp plate (221).

5. A method of installing a PC column according to claim 4, wherein: A non-slip pad (223) is arranged on a side of the clamp plate (221) and the back plate (222) which is in contact with the PC column (111).

6. A method of installing a PC column according to claim 4, wherein: The light ray position sensor (3) comprises a protective shell (31) which is fixedly connected with the outer side of the clamp plate (221), and a light ray sensor (32) array which is composed of a plurality of light ray sensors is arranged at the bottom of the protective shell (31).

7. A method of installing a PC column according to claim 6, wherein: The reference point is a certain light ray sensor (32) on the light ray sensor array.

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