Segment-type shaft assembly device and construction method

Abstract

The present invention discloses a segment-type shaft assembly device, comprising: a balance frame body, a fixed pin assembly and a flap component; the balance frame body has a bottom plate and side walls, the bottom plate at the front end of the balance frame body horizontally extends a certain distance beyond the side wall on this side, the extended end of the bottom plate at the front end of the balance frame body is rotatably connected to the flap component, the flap assembly has a segment placement area, and the flap assembly is provided with a baffle on one side of the bottom plate, the height of the baffle is less than the extended length of the bottom plate, so that after the flap assembly rotates 90°, the baffle can be placed on the extended end of the bottom plate, and a fixed pin assembly is arranged on the side wall at the front end of the balance frame body, and the pin shaft of the fixed pin assembly passes through the side wall at the front end of the balance frame body. The present invention has...

Description

Technical Field

[0001] The present invention relates to the technical field of shaft construction. More specifically, the present invention relates to a segment-type shaft assembly device and a construction method. Background Art

[0002] With the development of prefabricated and assembled construction methods, the shaft structure has gradually adopted prefabricated and assembled structures instead of the traditional in-situ casting mode. For prefabricated assembly structures, the hoisting and assembly of components are very important steps. Since the segments are usually stored with the inner arc surface facing up on site, it is necessary to adjust them to a vertical state for hoisting and assembly during shaft segment assembly. The conventional method is to use a turning machine for flipping, but generally, a turning machine is not specifically configured at the construction site, and directly hoisting vertically will cause damage to the segments, affecting their use. Summary of the Invention

[0003] The object of the present invention is to provide a segment-type shaft assembly device and a construction method, which achieve stable and vertical placement of the segments during hoisting, without skew, and the segments will not be damaged during the hoisting process.

[0004] The technical solution adopted by the present invention to solve this technical problem is: a segment-type shaft assembly device, comprising: a balance frame body, a fixed pin assembly, and a turning component;

[0005] The balance frame body has a bottom plate and side walls. The bottom plate at the front end of the balance frame body horizontally extends a certain distance beyond the side wall on this side. The extended end of the bottom plate at the front end of the balance frame body is rotatably connected to the turning component. The turning component has a segment placement area, and a baffle is provided on one side of the turning component located on the bottom plate. The height of the baffle is less than the length of the extension of the bottom plate, so that after the turning component rotates 90°, the baffle can be placed on the extended end of the bottom plate. A fixed pin assembly is provided on the side wall at the front end of the balance frame body, and the pin shaft of the fixed pin assembly passes through the side wall at the front end of the balance frame body.

[0006] Preferably, a plurality of chains are connected to the side wall of the balance frame body, and the tops of the chains are connected to form a lifting point.

[0007] Preferably, the turning component includes a fork and a baffle, and the fork and the baffle are respectively rotatably connected to the front end of the balance frame body, and the baffle is perpendicular to the fork.

[0008] Preferably, the fork and the baffle are respectively rotatably connected to the bottom plate at the front end of the balance frame body through hinges.

[0009] Preferably, the balance frame body includes a bottom plate and side walls. The side walls include side guard plates and guardrails. The side guard plates are welded around the bottom plate, and the guardrails are installed on the side guard plates. A cross brace is connected between the guardrails at the front and rear ends of the balance frame.

[0010] Preferably, the fixed pin assembly includes a disc with a pin hole and a cylindrical pin shaft; the disc is fixed to the guardrail at the front end of the receiving balance frame.

[0011] The present invention also provides a construction method for a segmental shaft, comprising the following steps:

[0012] a. Assembling and sinking the steel cutting edge;

[0013] b. Segment assembling and excavation with sinking, specifically:

[0014] In shallow or easily sinkable strata, the segments are assembled forward, that is, in the way of excavating and sinking one section and then connecting one higher section. The specific implementation method is as follows:

[0015] After the previous ring of segments sinks in place, lift the segments horizontally to the fork, with the concave surface facing up and one side closely against the baffle; through the fork and the baffle, turn the segments 90° to the vertical state, and connect and fix the fixed pin to the secondary grouting hole on the inner side of the segments; after removing the fork, lift the segments and the installation workers together to the assembling position. Then, use square timbers to support the segments obliquely on the outside, and connect the segments to the adjacent blocks through bolts on the inside. After the hoisting is completed, excavate and sink in place, and then successively hoist the next ring of segments in a cycle;

[0016] When encountering difficult-to-sink strata during the sinking process, the segments are assembled reversely, that is, in the way of excavating one section and then assembling one section downward. The specific implementation method is as follows:

[0017] First, chisel and recover the steel cutting edge at the bottom, excavate downward by the height of one ring of segments, and then carry out segment hoisting. First, lift the segments horizontally to the fork, with the concave surface facing up and one side closely against the baffle; then turn the segments 90° to the vertical state, and connect and fix the fixed pin to the secondary grouting hole on the inner side of the segments; after removing the fork, lift the segments and the installation workers together to the assembling position at the bottom of the shaft, connect the segments to the previous section of segments by longitudinal bolts, and then successively hoist other segments for circumferential connection.

[0018] c. Pouring the reinforced concrete for the bottom slab.

[0019] The present invention has at least the following beneficial effects:

[0020] 1. The device of the present application solves the problem of segment breakage caused by segment hoisting;

[0021] 2. The device of the present application has a simple structure, can be used as an auxiliary device for segment hoisting and a special device for segment vertical assembly, reduces the on-site assembly difficulty, and can effectively guarantee the accuracy;

[0022] 3. When encountering a difficult-to-sink formation, the effect of using the conventional pressing and sinking method is very little, and it is easy to cause an increase in the force on the connecting bolts between the segments. The device of the present application can easily solve the above problems.

[0023] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front view of the segment-type shaft assembly device of the present invention;

[0025] Figure 2 is the top view of the segment-type shaft assembly device of the present invention;

[0026] Figure 3 is the side view of the segment-type shaft assembly device of the present invention;

[0027] Figure 4 is the three-dimensional view of the segment-type shaft assembly device of the present invention;

[0028] Figure 5 is the schematic diagram of the segment placement of the present invention;

[0029] Figure 6 is the schematic diagram of the segment being flipped 90° to the vertical state of the present invention;

[0030] Figure 7 is the schematic diagram of the removal of the fork of the present invention;

[0031] Figure 8 is the schematic diagram after the removal of the fork of the present invention;

[0032] Figure 9 is the schematic diagram of the forward assembly of the present invention;

[0033] Figure 10 is the schematic diagram of the downward assembly of the present invention.

[0034] DESCRIPTION OF THE REFERENCE NUMERALS: 1 balance frame body, 2 fixed pin assembly, 3 segment flipping member, 4 chain, 5 lifting point, 6 fork, 7 baffle, 8 hinge, 9 bottom plate, 10 side guard plate, 11 guardrail, 12 cross brace, 13 disc, 14 pin shaft, 15 segment. DETAILED DESCRIPTION OF THE INVENTION

[0035] The present invention will be described in detail and completely below with reference to the drawings. Those of ordinary skill in the art will be able to implement the present invention based on these descriptions. Before describing the present invention in conjunction with the drawings, it should be particularly noted that: the technical solutions and technical features provided in each part including the following description can be combined with each other without conflict.

[0036] In addition, the embodiments of the present invention involved in the following description are generally only a part of the embodiments of the present invention, rather than all embodiments. Therefore, all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0037] The following further elaborates on the present invention in detail in conjunction with the accompanying drawings and embodiments, and the specific implementation process is as follows:

[0038] As Figures 1 - 8 shown, the present invention provides a segment-type shaft assembly device, including: a balance frame body 1, a fixed pin assembly 2, and a flap component 3;

[0039] The balance frame body 1 has a bottom plate 9 and side walls. The bottom plate 9 at the front end of the balance frame body 1 horizontally extends a certain distance beyond the side wall on this side. The extended end of the bottom plate 9 at the front end of the balance frame body 1 is rotatably connected to the flap component 3. The flap assembly has a segment 15 placement area, and there is a baffle 7 on one side of the flap assembly located on the bottom plate 9. The height of the baffle 7 is less than the length of the extension of the bottom plate 9, so that after the flap assembly rotates 90°, the baffle 7 can be placed on the extended end of the bottom plate 9. The fixed pin assembly 2 is provided on the side wall at the front end of the balance frame body 1, and the pin shaft 14 of the fixed pin assembly 2 passes through the side wall at the front end of the balance frame body 1.

[0040] In the above embodiment, on the one hand, the balance frame body 1 serves as a counterweight to ensure the balance of the overall device after lifting, and on the other hand, it can serve as a hanging basket for installation operations.

[0041] This technical solution may further include the following technical details to better achieve the technical effect: A plurality of chains 4 are connected to the side wall of the balance frame body 1, and the top ends of the chains 4 are connected to form a lifting point 5, which is convenient for lifting operations.

[0042] This technical solution may further include the following technical details to better achieve the technical effect: The flap component 3 includes a fork 6 and a baffle 7. The fork 6 and the baffle 7 are respectively rotatably connected to the front end of the balance frame body 1, and the baffle 7 is perpendicular to the fork 6.

[0043] This technical solution may further include the following technical details to better achieve the technical effect: The fork 6 and the baffle 7 are respectively rotatably connected to the bottom plate 9 at the front end of the balance frame body 1 through hinges 8, and the fork 6 and the baffle 7 can respectively rotate 90° around the hinges 8.

[0044] This technical solution may further include the following technical details to better achieve the technical effect: The balance frame 1 includes a bottom plate 9 and side walls. The side walls include side guard plates 10 and guardrails 11. The side guard plates 10 are welded around the bottom plate 9. The guardrails 11 are installed on the side guard plates 10. A cross brace 12 is connected between the guardrails 11 at the front and rear ends of the balance frame.

[0045] This technical solution may further include the following technical details to better achieve the technical effect: The fixed pin assembly 2 includes a disc 13 with a pin hole and a cylindrical pin shaft 14. The disc 13 is fixed to the guardrail 11 at the front end of the balance frame body 1. The segment 15 is connected to the balance frame body 1 by inserting the pin shaft 14 into the secondary grouting hole of the segment 15.

[0046] The present invention also provides a construction method for a segment-type shaft, including the following steps:

[0047] a. Assemble and sink the steel cutting edge; specifically:

[0048] a1. Weld the steel cutting edge to complete the segmented welding of the steel cutting edge.

[0049] a2. Excavate the foundation pit: Make appropriate slopes according to the site conditions and the size of the caisson, and manually assist in trimming. Provide appropriate protection for the slope surface.

[0050] a3. Construct the cushion: Uniformly and symmetrically lay a sand cushion along the axis of the bottom of the cutting edge. Build a brick cushion on the sand cushion. After completion of the masonry, use cement mortar to level it to ensure the flatness of the cushion.

[0051] a4. Assemble the steel cutting edge: Measure and mark the outer contour position of the steel cutting edge on the brick cushion. At the same time, mark and check the position of each piece of the steel cutting edge. Weld two lifting lugs on the transverse steel plate of the steel cutting edge. Use a truck crane to lift the first piece of the steel cutting edge onto the brick cushion. Manually assist in positioning and support it with square timbers to ensure that it is vertically placed without tipping over. Lift the second piece of the steel cutting edge, support it and then bolt-connect it to the first piece of the cutting edge and tighten. Sequentially lift and connect each piece of the steel cutting edge. When the steel cutting edge forms a ring, tighten all the bolts again to ensure the stable connection of the steel cutting edge.

[0052] b. Assemble the segment 15, excavate and sink, specifically:

[0053] As Figure 9 shown, in shallow or easily sinkable strata, the segment 15 is assembled forward, that is, in the way of excavating and sinking one section and connecting one higher section. The specific implementation method is:

[0054] As Figure 5 shown, after the previous ring of the segment 15 sinks in place, lift the segment 15 horizontally onto the fork 6, with the concave surface facing up and one side closely against the baffle 7; As Figure 6As shown, the segment 15 is flipped 90° to the vertical state by the fork 6 and the baffle 7, and the fixing pin is connected and fixed to the secondary grouting hole inside the segment 15; as Figures 7 - 8 shown, after removing the fork 6, the segment 15 and the installation worker are lifted together to the assembly position. Then, the outside of the segment 15 is obliquely supported by square timbers to prevent the segment 15 from tipping over, and the segment 15 is connected to the adjacent segment by bolts inside. After the hoisting is completed, after the excavation and sinking are in place, the next ring of segment 15 is hoisted in turn;

[0055] As Figure 10 shown, when encountering a difficult-to-sink formation during the sinking process, the segment 15 is assembled reversely, that is, by excavating one section and assembling one section downward. The specific implementation method is as follows:

[0056] First, chisel and recover the steel cutting edge at the bottom, excavate the height of one ring of segment 15 downward, and then hoist the segment 15. First, horizontally hoist the segment 15 onto the fork 6 with the concave surface facing up and one side closely attached to the baffle 7; then flip the segment 15 90° to the vertical state, and connect and fix the fixing pin to the secondary grouting hole inside the segment 15; after removing the fork 6, hoist the segment 15 and the installation worker together to the assembly position at the bottom of the shaft, connect the segment 15 to the upper segment 15 with longitudinal bolts, and then hoist other segments 15 in turn for circumferential connection.

[0057] c. Pour the reinforced concrete of the bottom slab 9.

[0058] Although the embodiments of the present invention have been disclosed above, it is not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the embodiments shown and described here.

Claims

1. A segment-type shaft assembly device, characterized in that, Comprising: A balance frame body, a fixed pin assembly and a turning piece component; The balance frame body has a bottom plate and side walls. The bottom plate at the front end of the balance frame body horizontally extends a certain distance beyond the side wall on this side. The extended end of the bottom plate at the front end of the balance frame body is rotatably connected to the turning piece component. The turning piece component has a segment placing area, and there is a baffle on one side of the turning piece component located on the bottom plate. The height of the baffle is less than the length of the extension of the bottom plate, so that after the turning piece component rotates 90°, the baffle can be placed on the extended end of the bottom plate. A fixed pin assembly is provided on the side wall at the front end of the balance frame body, and the pin shaft of the fixed pin assembly passes through the side wall at the front end of the balance frame body.

2. The segment-type shaft assembly device according to claim 1, characterized in that, A plurality of chains are connected to the side walls of the balance frame body, and the tops of the chains are connected to form a lifting point.

3. The segment-type shaft assembly device according to claim 1, characterized in that, The turning piece component includes a fork and a baffle. The fork and the baffle are respectively rotatably connected to the front end of the balance frame body, and the baffle is perpendicular to the fork.

4. The segment-type shaft assembly device according to claim 3, characterized in that, The fork and the baffle are respectively rotatably connected to the bottom plate at the front end of the balance frame body through hinges.

5. The segment-type shaft assembly device according to claim 1, wherein The balance frame body includes a bottom plate and side walls. The side walls include side guard plates and guardrails. The side guard plates are welded around the bottom plate, and the guardrails are installed on the side guard plates. A cross brace is connected between the guardrails at the front and rear ends of the balance frame.

6. The segment-type shaft assembly device according to claim 5, wherein, The fixed pin assembly includes a disc with a pin hole and a cylindrical pin shaft; the disc is fixed to the guardrail at the front end of the balance frame body under stress.

7. A construction method using the segment-type shaft assembly device as described in claim 3, characterized in that, Including the following steps: a. Assemble and sink the steel cutting edge; b. Segment assembly, excavation and sinking, specifically: In shallow or easily sinkable strata, the segments are assembled forward, that is, in the way of excavating and sinking one section and then connecting one higher section. The specific implementation method is: After the previous ring of segments sinks in place, lift the segments horizontally to the fork, with the concave side up and one side closely against the baffle; turn the segments 90° to the vertical state through the fork and the baffle, and connect and fix the fixed pin assembly with the secondary grouting holes inside the segments; after removing the fork, lift the segments and the installation workers together to the assembly position. Then, the outside of the segments is obliquely supported by square timbers, and the inside is connected to the adjacent segments by bolts. After the hoisting is completed, excavate and sink in place, and then cycle to hoist the next ring of segments in turn; When encountering difficult-to-sink strata during the sinking process, the segments are assembled reversely, that is, in the way of excavating one section and then assembling one section downward. The specific implementation method is: First, chisel and recover the steel cutting edge at the bottom, excavate downward by the height of one ring of segments, and then carry out segment hoisting. First, lift the segments horizontally to the fork, with the concave side up and one side closely against the baffle; then turn the segments 90° to the vertical state, and connect and fix the fixed pin assembly with the secondary grouting holes inside the segments; after removing the fork, lift the segments and the installation workers together to the assembly position at the bottom of the shaft, connect the segments to the upper section of segments with longitudinal bolts, and then hoist other segments in turn for circumferential connection; c. Pour the bottom slab reinforced concrete.

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