A positioning method for positioning a device for transporting PC prefabricated components

Abstract

The application discloses a positioning method of a positioning device for transporting PC prefabricated components and belongs to the technical field of PC prefabricated component transporting devices. When the edge of the PC prefabricated component in the width direction is mostly located in the supporting plate, the positioning method comprises the following steps: S1, installing a plurality of clamping positioning mechanisms at the designated positions on both sides of the supporting plate of the plate car according to the shape of the PC prefabricated component; S2, hoisting the PC prefabricated component above the supporting plate of the plate car by using a crane; S3, adjusting the position of the positioning vertical plate on the supporting plate by using a sliding part, and under the pushing action of the positioning vertical plate, the PC prefabricated component is located directly above the expected position of the supporting plate for placing the PC prefabricated component; and S4, adjusting the position of the remaining positioning vertical plate, so that the positioning vertical plate is in contact with the side surface of the PC prefabricated component. The technical scheme solves the problem that in the prior art, when the PC prefabricated component is hoisted onto the plate car, it is difficult to fall into the expected placing position of the supporting plate, and the risk of later transportation is increased.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of PC prefabricated component transportation device, and particularly relates to a positioning method of a positioning device for transporting PC prefabricated components. BACKGROUND

[0002] The PC prefabricated component for engineering outer wall has the characteristics of "high, heavy and special shape", and needs to be transported by a board car after maintenance.

[0003] In the prior art, the PC prefabricated component is usually lifted by a crane, and then the position and angle of the PC prefabricated component above the supporting plate are continuously adjusted through the movement of the crane hook, or the angle and position of the suspended PC prefabricated component are adjusted by manual pushing. The main purpose is to position the PC prefabricated component on the supporting plate, and try to place it in the middle of the supporting plate of the board car, so as to ensure the uniform distribution of the weight on the supporting plate, thereby reducing the problems such as board car tilting caused by uneven weight distribution during transportation. At the same time, the solution to the above problem in the prior art also includes designing a lifting tool for lifting the PC prefabricated component by the crane, such as increasing the number of lifting points and lifting ropes, to reduce the shaking during lifting. However, this method also cannot completely avoid the shaking of the PC prefabricated component during lowering, that is, the effect of placing the PC prefabricated component in the specified position during lifting is limited.

[0004] The above-mentioned various methods have limited effect on placing the PC prefabricated component in the specified position on the board car. In practice, the positioning process of the PC prefabricated component is slow, and the shaking of the PC prefabricated component during lifting cannot be avoided. When manually pushing, it is difficult to overcome the action force of shaking, and there is also a certain risk. Therefore, a device for positioning the PC prefabricated component during loading is needed. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a positioning method of a positioning device for transporting PC prefabricated components, to solve the problem that it is difficult to position the falling position of the PC prefabricated component when lifting it onto the board car in the prior art, and the PC prefabricated component cannot be placed in the expected placement position of the supporting plate, which increases the risk of later transportation.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] The positioning method of the positioning device for transporting PC prefabricated components includes the following steps when the edges of the PC prefabricated component in the width direction are mostly located in the supporting plate:

[0008] S1, according to the shape of the PC prefabricated component, install several clamping positioning mechanisms at designated positions on both sides of the supporting plate of the plate trolley;

[0009] S2, use the crane to hoist the PC prefabricated component above the supporting plate of the plate trolley;

[0010] S3, adjust the position of the positioning vertical plate on the supporting plate through the sliding component, and under the pushing action of the positioning vertical plate, the PC prefabricated component is located directly above the intended position of the supporting plate for placing the PC prefabricated component;

[0011] S4, adjust the position of the remaining positioning vertical plate, so that the positioning vertical plate is in contact with the side surface of the PC prefabricated component;

[0012] S5, the crane slowly lowers the PC prefabricated component, so that the PC prefabricated component is placed on the supporting plate;

[0013] S6, adjust the position of the positioning vertical plate again through the sliding component, so that each positioning vertical plate is in close contact with the PC prefabricated component;

[0014] When the edge of the PC prefabricated component in the width direction is mostly located outside the supporting plate, and the PC prefabricated component is provided with a through hole, the positioning method comprises the following steps:

[0015] S7, according to the shape of the PC prefabricated component, install several clamping positioning mechanisms at designated positions on both sides of the supporting plate of the plate trolley;

[0016] S8, use the crane to hoist the PC prefabricated component above the supporting plate of the plate trolley;

[0017] S9, adjust the position of the positioning vertical plate on the supporting plate through the sliding component, so that part of the positioning vertical plate is located at the four corners of the through hole of the PC prefabricated component;

[0018] S10, adjust the position of the positioning vertical plate in the through hole through the sliding component, and push the PC prefabricated component to be directly above the intended position for placing;

[0019] S11, the crane slowly lowers the PC prefabricated component, so that the PC prefabricated component is placed on the supporting plate;

[0020] S12, adjust the position of the positioning vertical plate in the through hole, so that it is distributed at the four corners of the through hole and is in close contact with the side wall of the through hole;

[0021] S13, according to the shape of the PC prefabricated component, adjust the position of the remaining positioning vertical plate, so that it is in close contact with the outer wall of the PC prefabricated component located in the supporting plate.

[0022] Further, the positioning device is arranged on the supporting plate of the plate truck, comprising a plurality of clamping positioning mechanisms arranged along the length direction of the supporting plate, the clamping positioning mechanism comprising a clamping assembly for clamping on both sides of the supporting plate and a clamping and positioning assembly for clamping and positioning the PC prefabricated component;

[0023] The clamping assembly comprises a hollow rectangular mounting plate, both ends of the rectangular mounting plate are provided with clamping end plates, the clamping end plates are detachably connected with the side surface of the supporting plate in the width direction, the inside of the rectangular mounting plate is symmetrically provided with a sliding part along the length direction, the sliding part is provided with a positioning vertical plate, the positioning vertical plate is arranged perpendicularly to the supporting plate, and the other end of the positioning vertical plate is fixedly connected to the sliding part.

[0024] A plurality of equidistantly distributed limiting columns are symmetrically arranged on the lower surface of the width edge of the supporting plate, the limiting columns and the clamping end plates are provided with clamping blocks for connecting the two, the clamping blocks are provided with at least one limiting through hole matched with the limiting columns and one limiting through slot matched with the clamping end plates, the clamping blocks and the clamping end plates are both provided with positionally corresponding limiting holes, the limiting holes are provided with limiting pins, one side of the clamping block facing the middle part of the supporting plate is provided with a return spring, one end of the return spring is fixed to the limiting pin, and the other end of the return spring is fixed to the clamping block.

[0025] Further, the sliding part comprises a sliding block, a screw rod and a fixed block, the fixed block is arranged in the middle part of the rectangular mounting plate, both ends of the screw rod are rotatably connected to the fixed block and the clamping end plate respectively, one end of the screw rod rotatably connected to the clamping end plate protrudes outward from the outer side surface of the clamping end plate, the sliding block is provided with a threaded hole matched with the screw rod, the sliding block is threadedly connected to the screw rod, and both ends of the sliding block are in contact with the inner wall of the rectangular mounting plate.

[0026] Further, the symmetrically arranged positioning vertical plates are respectively provided with a rectangular outer sleeve and an inner sliding tube, one end of the inner sliding tube is slidably arranged in the inside of one end of the outer sleeve, both ends of the outer sleeve and the inner sliding tube are provided with sliding grooves, the sliding grooves are sleeved on the positioning vertical plate, both the outer sleeve and the inner sliding tube are provided with a plurality of positioning holes, and the positioning holes are provided with positioning pins.

[0027] Further, the outer sleeve and the inner sliding tube are staggered on the plurality of positioning vertical plates on the same side.

[0028] Further, the width of the outer sleeve is equal to the spacing between the adjacent rectangular mounting plates, and the height of the outer sleeve is equal to the height of the rectangular mounting plate.

[0029] Further, one end of the outer sleeve and the inner sliding tube connected with the positioning vertical plate is provided with an outwardly extending lifting sleeve, and the lifting sleeve is detachably connected with the outer sleeve and the inner sliding tube respectively.

[0030] Further, the upper side of the rectangular mounting plate is provided with an elastic cloth, both ends of the elastic cloth are fixed on both end portions of the rectangular mounting plate, and the positioning vertical plate is connected with the sliding component through the elastic cloth.

[0031] Further, the positioning vertical plate is rotationally connected with the sliding component, and an air bag is arranged on the side of the positioning vertical plate in contact with the PC prefabricated component.

[0032] The present application has the following beneficial effects:

[0033] (1) The positioning device in the technical solution can be arranged on the supporting plate according to the shape of the PC prefabricated component, can position the hoisting falling position of the PC prefabricated component and guide the falling track, can improve the accuracy of hoisting the PC prefabricated component to the specified position on the supporting plate, and can eliminate the problem that the uneven force on the supporting plate causes the flat car to easily tilt and other dangerous problems in the transportation process.

[0034] (2) The positioning device can limit the PC prefabricated component on the supporting plate, and can ensure the stability of the PC prefabricated component in the transportation process.

[0035] (3) The positioning device can position, guide and clamping limit the PC prefabricated component such as special-shaped parts and super-wide parts, and further improve the transportation effect of the flat car on the PC prefabricated component.

[0036] Other advantages, objects and features of the present application will be set forth in the following specification, and in part will become apparent to those skilled in the art from the present application, or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and obtained by the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to make the purpose, technical scheme and beneficial effects of the present application clearer, the present application provides the following drawings for illustration:

[0038] Figure 1 It is a perspective view of the positioning device installed on the supporting plate of the present application;

[0039] Figure 2 It is another perspective view of the positioning device installed on the supporting plate of the present application;

[0040] Figure 3 It is a sectional view of the positioning device of the present application;

[0041] Figure 4 It is a schematic view of the positioning and clamping method of the special-shaped part in the positioning method of the positioning device of the present application;

[0042] Figure 5The schematic view of the PC prefabricated component stacking and transporting in the positioning method of the positioning device of the present application;

[0043] Figure 6 The schematic view of the positioning and clamping method of the PC prefabricated component with super width and through hole in the positioning method of the positioning device of the present application;

[0044] Figure 7 The schematic view of the engineering example of the PC prefabricated component with super width and through hole applied in the present application.

[0045] The signs in the drawings are as follows:

[0046] The pallet 1, the rectangular mounting plate 2, the fixed block 3, the screw 4, the clamping end plate 5, the limiting column 6, the clamping block 7, the limiting through slot 8, the limiting through hole 9, the limiting hole 10, the limiting pin 11, the return spring 12, the sliding block 13, the positioning vertical plate 14, the outer sleeve 15, the inner sliding tube 16, the positioning hole 17, the positioning pin 18, the special-shaped part 19, the standard part 20, and the super width part 21. DETAILED DESCRIPTION

[0047] As shown in Figure 4 and Figure 5 The positioning method of the positioning device for transporting the PC prefabricated component, when the edge of the PC prefabricated component in the width direction is mostly located in the pallet 1, a method for positioning the special-shaped PC prefabricated component or the standard PC prefabricated component by using the positioning device is disclosed in the present technical solution, and the positioning method comprises the following steps:

[0048] S1, according to the shape of the PC prefabricated component, a plurality of clamping positioning mechanisms are installed at the designated positions on both sides of the pallet 1 of the pallet car;

[0049] S2, the PC prefabricated component is hoisted to the upper side of the pallet 1 of the pallet car by using the crane;

[0050] S3, the position of the positioning vertical plate 14 on the pallet 1 is adjusted by the sliding part, and the PC prefabricated component is located directly above the position of the pallet 1 for placing the PC prefabricated component under the pushing action of the positioning vertical plate 14;

[0051] S4, the position of the remaining positioning vertical plate 14 is adjusted, so that the positioning vertical plate 14 is in contact with the side surface of the PC prefabricated component;

[0052] S5, the PC prefabricated component is slowly lowered and sent by the crane, so that the PC prefabricated component is placed on the pallet 1;

[0053] S6, the position of the positioning vertical plate 14 is adjusted again by adjusting the sliding part, so that each positioning vertical plate 14 is in close contact with the PC prefabricated component.

[0054] It should be noted that when the PC prefabricated component is a special-shaped part 19 (irregular shape) or a standard part 20 (regular shape), the position of the positioning vertical plate 14 can be adjusted, and multi-point positioning and clamping limiting can be performed to improve the positioning and limiting effect of the special-shaped part 19.

[0055] As shown in Figure 6 When the edges of the PC prefabricated component in the width direction are mostly located outside the supporting plate 1, and the PC prefabricated component is provided with a through hole, a method for positioning an ultra-wide PC prefabricated component by using the positioning device is also disclosed in the technical solution, and the positioning method comprises the following steps:

[0056] S7. According to the shape of the PC prefabricated component, a plurality of clamping positioning mechanisms are installed at designated positions on both sides of the supporting plate 1 of the plate car;

[0057] S8. The PC prefabricated component is hoisted to above the supporting plate 1 of the plate car by using a crane;

[0058] S9. The position of the positioning vertical plate 14 on the supporting plate 1 is adjusted by the sliding part, so that part of the positioning vertical plate 14 is located at the four corners of the through hole of the PC prefabricated component;

[0059] S10. The position of the positioning vertical plate 14 in the through hole is adjusted by the sliding part, so that the PC prefabricated component is pushed to directly above the intended placement position;

[0060] S11. The PC prefabricated component is slowly lowered by the crane, so that the PC prefabricated component is placed on the supporting plate 1;

[0061] S12. The position of the positioning vertical plate 14 in the through hole is adjusted so that it is distributed at the four corners of the through hole and tightly contacts the side wall of the through hole;

[0062] S13. According to the shape of the PC prefabricated component, the positions of the remaining positioning vertical plates 14 are adjusted so that they tightly contact the outer wall of the PC prefabricated component located in the supporting plate 1.

[0063] In the above two positioning methods, stacking transportation can be realized. When the ultra-wide part 21 is stacked and transported, the end of the outer sleeve 15 and the inner sliding tube 16 connected with the positioning vertical plate 14 is provided with an outwardly extending lifting sleeve, and the lifting sleeve is detachably connected with the outer sleeve 15 and the inner sliding tube 16. This arrangement is to increase the contact length and area of the upper PC prefabricated component with the sleeper (outer sleeve 15 and inner sliding tube), and to improve the stability of placement.

[0064] In order to further explain the practicality and importance of the positioning device for the plate car transportation, an example of the transportation of an ultra-wide piece 21 is listed, the construction project of Tsinghua University Shenzhen Graduate School Innovation Base Construction Project (Phase II), which is a 22-story office and experimental comprehensive building, wherein the PC prefabricated component of the outer wall has the characteristics of "high, heavy, and special shape", the component height is 4.21m-6.28m,

[0065] The component weight is 1.65t-9.74t, wherein the general weight of the component is 6.32t, the appearance of the prefabricated component is "double U type", and the surface is provided with a through channel, that is, it meets the positioning and transportation method of the ultra-wide component in the technical scheme.

[0066] As shown in Figures 1-3 In an implementable manner, the positioning device is arranged on the supporting plate 1 of the plate car, and includes a plurality of clamping positioning mechanisms arranged along the length direction of the supporting plate 1, the clamping positioning mechanism includes a clamping assembly for clamping on both sides of the supporting plate 1 and a clamping and positioning assembly for clamping and positioning the PC prefabricated component, and the clamping assembly and the side surface of the supporting plate 1 are detachably connected;

[0067] It should be noted that in the specific embodiment, the clamping and positioning assembly positions the PC prefabricated component in advance by positioning the position of the hoisting and falling of the PC prefabricated component and positioning the position of the PC prefabricated component on the plate car, and also guides the falling path of the falling PC prefabricated component.

[0068] Specifically, the clamping assembly includes an internally hollow rectangular mounting plate 2 arranged on the supporting plate 1, which can play the role of a sleeper during transportation, avoiding the full contact of the PC prefabricated component with the supporting plate 1, which can cause the problem of the PC prefabricated component not being hoisted in the later stage, both ends of the rectangular mounting plate 2 are provided with clamping end plates 5, the clamping end plates 5 are welded and fixed vertically on the end portions of the rectangular mounting plate 2, the clamping end plates 5 and the side surface of the supporting plate 1 in the width direction are detachably connected, the inside of the rectangular mounting plate 2 is symmetrically provided with a sliding component along the length direction, the sliding component is provided with a positioning vertical plate 14, the positioning vertical plate 14 is arranged vertically to the supporting plate 1, and the other end of the positioning vertical plate 14 is fixedly connected to the sliding component;

[0069] Specifically, the detachable connection between the clamping end plate 5 and the supporting plate 1 is that a plurality of equidistantly distributed limiting columns 6 are symmetrically arranged on the lower surface of the width edge of the supporting plate 1, the limiting columns 6 and the clamping end plate 5 are provided with clamping blocks 7 for connecting the two, the clamping block 7 is provided with at least one limiting through hole 9 matched with the limiting column 6 and one limiting through slot 8 matched with the clamping end plate 5, the clamping block 7 and the clamping end plate 5 are both provided with position corresponding limiting holes 10, the limiting hole 10 is provided with a limiting pin 11, the side of the clamping block 7 facing the middle of the supporting plate 1 is provided with a reset spring 12, one end of the reset spring 12 is fixed on the limiting pin 11, and the other end is fixed on the clamping block 7, when connected, the limiting pin 11 is pulled to make the limiting pin 11 out of the limiting hole 10, then the end of the clamping end plate 5 is in the limiting through slot 8, and at least two limiting columns 6 are in the limiting through hole 9 of the clamping block 7, then the limiting pin 11 is released, under the action of the reset spring 12, the limiting pin 11 passes through the limiting holes 10 of the clamping block 7 and the clamping end plate 5, that is, the clamping block 7 is connected to the clamping end plate 5, avoiding the sliding of the clamping block 7, the reset spring 12 is arranged to connect the limiting pin 11 to the clamping block 7, and an acting force is applied to the limiting pin 11 to avoid it from being separated under the condition of vibration.

[0070] The detachable connection is that the clamping end plate 5, the limiting column 6 and the supporting plate 1 are connected as a whole through the clamping block 7, that is, when either side of the two side positioning vertical plates 14 is stressed, the stress can be dispersed to the supporting plate 1 through the two side plates, so that the whole supporting plate 1 is stressed, and the bearing capacity and limiting effect of the positioning vertical plate 14 are improved.

[0071] The working principle of the above technical scheme is that:

[0072] According to the length and width of the PC prefabricated component, the position of the PC prefabricated component placed on the supporting plate 1 is selected in advance, then the clamping and positioning mechanism is installed at the corresponding position of the supporting plate 1, then in the process of hoisting and lowering the PC prefabricated component (in the air), the positioning vertical plate 14 is moved to the PC prefabricated component and pushes the PC prefabricated component to move, so that it moves to the position above the selected placement position, then the remaining positioning vertical plates 14 are all moved to contact with the side surface of the PC prefabricated component, then the PC prefabricated component is lowered by the crane, so that the PC prefabricated component slides down along the side wall of the positioning vertical plate 14, that is, it can accurately slide down to the specified position at the end of the supporting plate 1, and in the sliding process, the PC prefabricated component will not shake due to the limiting of the positioning vertical plate 14, so that the placement position is more accurate, and the problem of uneven stress on the supporting plate 1 does not occur, avoiding the danger of eccentric stress in the transportation process, and the abutting and clamping of the positioning vertical plate 14 can also limit the sliding of the PC prefabricated component in the transportation process, further improving the transportation safety.

[0073] In an implementable mode, the sliding component includes the sliding block 13, the screw rod 4 and the fixed block 3, the fixed block 3 is arranged at the middle part of the rectangular mounting plate 2, the two ends of the screw rod 4 are rotationally connected to the fixed block 3 and the clamping end plate 5 respectively, and the end of the screw rod 4 and the clamping end plate 5 rotationally connected protrudes out of the outer side surface of the clamping end plate 5, the sliding block 13 is provided with a threaded hole matched with the screw rod 4, the sliding block 13 is threadedly connected to the screw rod 4, and the two ends of the sliding block 13 are in contact with the inner wall of the rectangular mounting plate 2, the end screw rod 4 is rotated, of course, the rotation can be manually performed by a wrench or an electric tool, and then the sliding block 13 is moved, and the movement of the positioning vertical plate 14 is driven, and it needs to be noted that, in the technical solution, the purpose of the independent movement of the two sliding components is to adjust the positions of the two positioning vertical plates 14 at different distances, that is, the shape of the special-shaped piece 19 can be better adapted to, and the positioning, guiding and clamping effects of the special-shaped piece 19 are improved.

[0074] In an implementable mode, the positioning vertical plate 14 is provided with the outer sleeve pipe 15 and the inner sliding pipe 16 which are symmetrically arranged and have a rectangular cross section, one end of the inner sliding pipe 16 is slidably arranged in the inner end of the outer sleeve pipe 15, the other ends of the outer sleeve pipe 15 and the inner sliding pipe 16 are provided with sliding grooves which are sleeved on the positioning vertical plate 14, the outer sleeve pipe 15 and the inner sliding pipe 16 are provided with a plurality of positioning holes 17, and the positioning holes 17 are provided with positioning pins 18.

[0075] The outer sleeve pipe 15 and the inner sliding pipe 16 are arranged to prevent the relative sliding of the outer sleeve pipe 15 and the inner sliding pipe 16 when the outer sleeve pipe 15 and the inner sliding pipe 16 are connected by the positioning pins 18, at this time, the outer sleeve pipe 15 and the inner sliding pipe 16 can limit the deformation of the two positioning vertical plates 14 to the outside, that is, the rigidity of the positioning vertical plate 14 can be enhanced, which can be understood as a transverse reinforcing rib, of course, the end of the outer sleeve pipe 15 and the inner sliding pipe 16 which is slidably connected to the positioning vertical plate 14 can be tightly fixed to the positioning vertical plate 14 by a high-strength bolt or the like, so that the outer sleeve pipe 15 and the inner sliding pipe 16 are in close contact with the upper surface of the PC prefabricated component, at this time, the outer sleeve pipe 15 and the inner sliding pipe 16 can also limit the upward and downward displacement of the PC prefabricated component, thereby avoiding the problem that the PC prefabricated component jumps up and down when the vehicle bumps.

[0076] Meanwhile, the outer sleeve pipe 15 and the inner sliding pipe 16 also play the role of sleepers, so that the PC prefabricated components stacked up and down can be separated by a certain distance, the contact area of the stacked components is reduced, and the problem that the rust-proof or thermal insulation layer on the surface of the PC prefabricated component is damaged by friction is avoided, of course, a rubber pad layer is preferably arranged on the inner sleeve pipe and the outer sliding pipe to avoid rigid contact and also play the role of anti-skid.

[0077] In an implementable mode, the outer sleeve pipe 15 and the inner sliding pipe 16 are staggered on the positioning vertical plates 14 on the same side, and the reason for the staggering is that the height of the outer sleeve pipe 15 is higher, and if all are arranged on one side, there will be a situation of high on one side and low on the other side, and therefore the staggering can avoid the problem of inclination when the PC prefabricated part is placed thereon.

[0078] In an implementable mode, the width of the outer sleeve pipe 15 is equal to the spacing between the adjacent rectangular mounting plates 2, and the height of the outer sleeve pipe 15 is equal to the height of the rectangular mounting plate 2, and this arrangement is to place the outer sleeve pipe 15 and the inner sliding pipe 16 between the adjacent rectangular mounting plates 2 without using them. The gap between the adjacent rectangular mounting plates 2 is filled to make it flat, which facilitates the support plate 1 to prevent some smaller other goods.

[0079] In an implementable mode, the upper side of the rectangular mounting plate 2 is provided with an elastic cloth, the two ends of the elastic cloth are fixed on the two end portions of the rectangular mounting plate 2, the positioning vertical plate 14 passes through the elastic cloth and is connected with the sliding component, and the movement of the positioning vertical plate 14 drags the elastic cloth to deform and move, thereby always covering the rectangular mounting plate 2 to avoid the problem that some falling objects of the PC prefabricated part enter to cause the sliding effect of the sliding component to be poor.

[0080] In an implementable mode, the positioning vertical plate 14 is rotationally connected to the sliding component, and the side of the positioning vertical plate 14 in contact with the PC prefabricated part is provided with an air bag. The purpose of the rotational connection of the positioning vertical plate 14 is to adjust the angle of the positioning vertical plate 14 by rotation, so that the positioning vertical plate 14 can better contact the outer wall of the curved PC prefabricated part, and the positioning, clamping and guiding effects are improved. The setting of the air bag can protect the side of the PC prefabricated part and also has a buffering effect. The rotational connection can be achieved by high-strength bolts and nuts, which can realize rotation and position limitation. Of course, at this time, the sliding connection between the outer sleeve pipe 15 and the inner sliding pipe 16 and the positioning vertical plate 14 should be provided with a avoiding groove adapted to the rotation of the positioning vertical plate 14, or the positioning vertical plate 14 at the connection is provided in a tubular shape, which can adapt to rotation.

[0081] The above setting is based on the positioning vertical plate 14 being rectangular, because the rectangular setting has a large contact area and a large friction force with the PC prefabricated part, which can better contact and position the side of the PC prefabricated part. Of course, it can also be selected in a tubular shape to better contact the rotation and the arc surface. The actual situation can be selected and designed according to the actual situation.

[0082] Finally, it should be noted that the above preferred embodiments are merely intended to illustrate the technical solutions of the present application but not to limit the present application. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various modifications can be made in form and details without departing from the scope of the present application defined by the claims.

Claims

1. A positioning method for positioning device for transporting PC prefabricated components, characterized in that: when the edge of the PC prefabricated component in the width direction is mostly located in the supporting plate, the positioning method comprises the following steps: S1, installing a plurality of clamping positioning mechanisms at the designated positions on both sides of the supporting plate of the flat car according to the shape of the PC prefabricated component; S2, hoisting the PC prefabricated component above the supporting plate of the flat car by using the crane; S3, adjusting the position of the positioning vertical plate on the supporting plate by using the sliding component, and making the PC prefabricated component be located directly above the expected position of the supporting plate for placing the PC prefabricated component under the pushing action of the positioning vertical plate; S4, adjusting the position of the remaining positioning vertical plate, and making the positioning vertical plate contact with the side surface of the PC prefabricated component; S5, slowly hoisting the PC prefabricated component downward by the crane, and making the PC prefabricated component be located on the supporting plate; S6, adjusting the position of the positioning vertical plate again by using the sliding component, and making each positioning vertical plate tightly contact with the PC prefabricated component; when the edge of the PC prefabricated component in the width direction is mostly located outside the supporting plate, and the PC prefabricated component is provided with a through hole, the positioning method comprises the following steps: S7, installing a plurality of clamping positioning mechanisms at the designated positions on both sides of the supporting plate of the flat car according to the shape of the PC prefabricated component; S8, hoisting the PC prefabricated component above the supporting plate of the flat car by using the crane; S9, adjusting the position of the positioning vertical plate on the supporting plate by using the sliding component, and making part of the positioning vertical plate be located at the four corners of the through hole of the PC prefabricated component; S10, adjusting the position of the positioning vertical plate in the through hole by using the sliding component, and pushing the PC prefabricated component to be located directly above the expected position; S11, slowly hoisting the PC prefabricated component downward by the crane, and making the PC prefabricated component be located on the supporting plate; S12, adjusting the position of the positioning vertical plate in the through hole, and making the positioning vertical plate be distributed at the four corners of the through hole and tightly contact with the side wall of the through hole; S13, adjusting the position of the remaining positioning vertical plate according to the shape of the PC prefabricated component, and making the positioning vertical plate tightly contact with the outer wall of the PC prefabricated component located in the supporting plate. The positioning device is arranged on the supporting plate of the flat car, and comprises a plurality of clamping positioning mechanisms arranged along the length direction of the supporting plate, wherein the clamping positioning mechanism comprises a clamping assembly arranged on both sides of the supporting plate and a clamping and positioning assembly arranged for clamping and positioning the PC prefabricated component; the clamping assembly comprises a rectangular mounting plate with a hollow inside, both ends of the rectangular mounting plate are provided with clamping end plates, the clamping end plates are detachably connected with the side surface in the width direction of the supporting plate, the inside of the rectangular mounting plate is symmetrically provided with a sliding component along the length direction, the sliding component is provided with a positioning vertical plate, the positioning vertical plate is arranged perpendicularly to the supporting plate, and the other end of the positioning vertical plate is fixedly connected with the sliding component. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The positioning method of the positioning device for transporting the PC prefabricated component according to claim 1, characterized in that: ​ ​ The lower surface of the width edge of the supporting plate is symmetrically provided with a plurality of equidistantly distributed limiting columns, the limiting columns and the clamping end plate are provided with clamping blocks for connecting the two, the clamping blocks are provided with at least one limiting through hole matched with the limiting columns and one limiting through slot matched with the clamping end plate, the clamping blocks and the clamping end plate are both provided with positionally corresponding limiting holes, the limiting holes are provided with limiting pins, one end of a return spring provided on the side of the clamping block facing the middle part of the supporting plate is fixed on the limiting pin, and the other end is fixed on the clamping block.

3. A positioning method for positioning the positioning device for transporting the PC prefabricated component according to claim 2, characterized in that: The sliding component includes a sliding block, a screw rod and a fixing block, the fixing block is arranged in the middle part of the rectangular mounting plate, both ends of the screw rod are rotatably connected to the fixing block and the clamping end plate respectively, and the end of the screw rod rotatably connected to the clamping end plate protrudes outward from the clamping end plate, the sliding block is provided with a threaded hole matched with the screw rod, the sliding block is in threaded connection with the screw rod, and both ends of the sliding block are in contact with the inner wall of the rectangular mounting plate.

4. The positioning method of the positioning device for transporting the PC prefabricated component according to claim 2, characterized in that: The positioning vertical plates symmetrically arranged are respectively provided with a rectangular outer sleeve and an inner sliding tube, one end of the inner sliding tube is slidably arranged in the inner part of one end of the outer sleeve, both the outer sleeve and the inner sliding tube are provided with a sliding groove at the other end, the sliding groove is sleeved on the positioning vertical plate, both the outer sleeve and the inner sliding tube are provided with a plurality of positioning holes, and the positioning holes are provided with positioning pins.

5. A positioning method for positioning the positioning device for transporting the PC prefabricated component according to claim 4, characterized in that: The outer sleeve and the inner sliding tube are alternately arranged on the positioning vertical plates on the same side.

6. The positioning method of the positioning device for transporting the PC prefabricated component according to claim 4, characterized in that: The width of the outer sleeve is equal to the spacing between adjacent rectangular mounting plates, and the height of the outer sleeve is equal to the height of the rectangular mounting plate.

7. The positioning method of the positioning device for transporting the PC prefabricated component according to claim 4, characterized in that: The end of the outer sleeve and the inner sliding tube connected with the positioning vertical plate is provided with an outwardly extending lifting sleeve, and the lifting sleeve is detachably connected with the outer sleeve and the inner sliding tube respectively.

8. The positioning method of the positioning device for transporting the PC prefabricated component according to claim 2, characterized in that: The upper part of the rectangular mounting plate is provided with an elastic cloth, both ends of the elastic cloth are fixed on both end parts of the rectangular mounting plate, and the positioning vertical plate is connected with the sliding component through the elastic cloth.

9. The positioning method of the positioning device for transporting the PC prefabricated component according to claim 2, characterized in that: The positioning vertical plate is rotatably connected with the sliding component, and the side of the positioning vertical plate in contact with the PC prefabricated component is provided with an air bag.

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