A turnover machine for producing a metro segment

Abstract

This invention discloses a turning machine for producing subway tunnel segments, belonging to the field of tunnel segment turning technology. It includes a base frame, with adjustable rotating components connected to both sides of the upper surface of the base frame via short columns. A turning frame is mounted on each of the adjustable rotating components. The turning frame, driven by a hydraulic cylinder mounted within the base frame, rotates the tunnel segments placed on its surface from 0° to 180°. An adjustable support component is inserted into the turning frame. Through the set turning frame and adjustable support component, relay support is achieved between the two turning frames. Combined with the hydraulic cylinder drive, the turning of the tunnel segments from 0° to 180° can be stably completed without auxiliary hoisting, improving turning efficiency. The adjustable support component on the turning frame allows adjustment of the support rod protrusion height by rotating the threaded rod, reducing stress concentration, preventing tunnel segment damage, and adapting to the production needs of tunnel segments of different specifications.

Description

Technical Field

[0001] This invention relates to the field of tunnel segment flipping technology, and more particularly to a flipping machine for producing subway tunnel segments. Background Technology

[0002] Subway shield tunnel segments are the core load-bearing components of tunnel lining. They are mostly curved precast concrete parts, which are large in size and weight. They need to be turned over during production, curing and transportation processes to meet the posture requirements for demolding, curing, painting and transportation. At present, the industry generally uses hydraulically driven turning machines to complete this process.

[0003] Existing flipping equipment mostly adopts a fixed flipping frame and fixed fulcrum structure. When the tube segment is flipped to a 90° vertical position, there is no tilt angle adjustment function. It relies entirely on vertical support, resulting in a high center of gravity, which makes it very easy to sway or even overturn. In addition, the rotating fulcrum is a fixed design. When there is a deviation in the placement of the tube segment, the rotating component is subjected to uneven force, which can easily cause damage to the components. Moreover, the position of the tube segment needs to be repeatedly adjusted manually, which seriously affects production efficiency and equipment lifespan. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that when the rotation fulcrum is fixed, the rotating component is subjected to uneven force, which can easily cause damage to the components when the placement position of the tunnel segments is deviated. Therefore, this invention proposes a turning machine for producing subway tunnel segments.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A turning machine for producing subway tunnel segments includes a base frame. Both sides of the upper surface of the base frame are connected to adjustable rotating components via short columns. A turning frame is installed on the adjustable rotating components. The turning frame drives the tunnel segments placed on its surface to turn 0° to 180° via a hydraulic cylinder assembled in the base frame. An adjustable support component is inserted into the turning frame.

[0007] The adjustable support assembly includes two first electro-hydraulic rods fixed to the bottom of the tilting frame. One end of each first electro-hydraulic rod is fixed to a linkage plate. The linkage plate is provided with a support rod that is inserted into the tilting frame at one end. The three support rods protrude from the surface of the tilting frame via threaded rods assembled in the middle of the linkage plate to support segments of different specifications.

[0008] As a further description of the above technical solution:

[0009] The adjustable support assembly also includes a threaded seat fixed inside the support rod, the threaded seat being threaded onto the threaded rod, and a washer fixed to the top of the support rod.

[0010] As a further description of the above technical solution:

[0011] The tilting frame is also equipped with two positioning components for locking the support rods. The positioning components include a push plate that is slidably installed in the tilting frame, and multiple insert rods are fixed on one side of the push plate.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the support rod is provided with multiple slots that are compatible with the insertion rod, and the inner wall of the flipping frame is equipped with a second electro-hydraulic rod, one end of which is connected to the push plate.

[0014] As a further description of the above technical solution:

[0015] The adjustable rotating assembly includes a base rod fixed to the base frame, and a bottom sliding plate is slidably connected to the base rod.

[0016] As a further description of the above technical solution:

[0017] A top rod is fixed to one side of the lower surface of the flipping frame, and a top slide plate is slidably connected inside the top rod. The top slide plate is rotatably connected to the bottom slide plate through a rotating seat.

[0018] As a further description of the above technical solution:

[0019] The bottom of the base rod is fixed with a mounting base, and a third electro-hydraulic rod is mounted on the mounting base.

[0020] As a further description of the above technical solution:

[0021] A connecting seat is fixed on the outer wall of one of the rotating seats, and one end of the third electro-hydraulic rod is connected to the connecting seat.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. Through the set tilting frame and adjustable support components, the relay support of the two tilting frames is realized. With the hydraulic cylinder drive, the segment can be stably tilted from 0° to 180° without the need for auxiliary hoisting, thus improving the tilting efficiency.

[0024] The adjustable support components on the flipping frame can adjust the height of the support rod protrusion by rotating the threaded rod, reducing stress concentration, which can not only prevent the segment from breaking, but also adapt to the production needs of segments of different specifications.

[0025] Simultaneously, during the process of the segment flipping to 90°, the first electro-hydraulic rod located at the top is activated. The first electro-hydraulic rod drives the linkage plate and support rod to move backward, so that the segment flipped to 90° is slightly tilted backward, rather than in a purely vertical state. This effectively reduces the risk of overturning caused by the shift of the segment's center of gravity and ensures the stability and safety of the flipping process.

[0026] 2. By using the adjustable rotating component, when the placement position of the tube segment is offset, the third electro-hydraulic rod is activated. The third electro-hydraulic rod pushes the rotating seat through the connecting seat, causing the top slide plate to slide inside the top rod and the bottom slide plate to slide inside the bottom rod. This adjusts the position of the rotating seat so that the rotation fulcrum is in the middle of the tube segment, ensuring uniform force during flipping and preventing damage to the adjustable rotating component due to uneven force. At the same time, it eliminates the need for repeated manual adjustment of the tube segment alignment, greatly improving production efficiency. Attached Figure Description

[0027] Figure 1 A first-view schematic diagram of the overall structure provided according to an embodiment of the present invention is shown;

[0028] Figure 2 This diagram shows the internal structure of a support rod after being cut open according to an embodiment of the present invention.

[0029] Figure 3 A schematic diagram of the cross-section of the tilting frame provided according to an embodiment of the present invention is shown;

[0030] Figure 4 The present invention provides an embodiment of the invention. Figure 2 Enlarged view of point A in the middle;

[0031] Figure 5 A second-view schematic diagram of the overall structure provided according to an embodiment of the present invention is shown;

[0032] Figure 6 A schematic diagram of the structure installation of the bottom of the tilting frame provided according to an embodiment of the present invention is shown;

[0033] Figure 7 The present invention provides an embodiment of the invention. Figure 2 Enlarged view of point B in the middle;

[0034] Figure 8 A schematic diagram of a tube segment placed on a flipping frame according to an embodiment of the present invention is shown.

[0035] Legend:

[0036] 10. Base frame; 11. Tilting frame; 12. Hydraulic cylinder;

[0037] 20. Adjustable rotating assembly; 21. Base rod; 22. Bottom slide plate; 23. Top rod; 24. Top slide plate; 25. Rotating seat; 26. Third electro-hydraulic rod;

[0038] 30. Adjustable support assembly; 31. First electro-hydraulic rod; 32. Linkage plate; 33. Support rod; 34. Threaded seat; 35. Threaded rod;

[0039] 40. Positioning assembly; 41. Push plate; 42. Insert rod; 43. Slot; 44. Second electro-hydraulic rod. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0041] like Figure 1 - Figure 8 As shown, the present invention provides:

[0042] A turning machine for producing subway tunnel segments includes a base frame 10, with adjustable rotating components 20 connected to both sides of the upper surface of the base frame 10 via short columns, and a turning frame 11 mounted on the adjustable rotating components 20.

[0043] The adjustable rotating assembly 20 includes a bottom rod 21 fixed to the bottom frame 10, a bottom slide plate 22 slidably connected to the bottom rod 21, a top rod 23 fixed to one side of the lower surface of the tilting frame 11, a top slide plate 24 slidably connected inside the top rod 23, the top slide plate 24 being rotatably connected to the bottom slide plate 22 via a rotating seat 25, a mounting seat fixed to the bottom of the bottom rod 21, a third electro-hydraulic rod 26 mounted on the mounting seat, a connecting seat fixed to the outer wall of one of the rotating seats 25, and one end of the third electro-hydraulic rod 26 being connected to the connecting seat;

[0044] Specifically, during the placement of the tunnel segments, when the segment is not centered, the third electric hydraulic rod 26 is activated to push the rotating seat 25, which in turn moves the top slide plate 24 and the bottom slide plate 22 between the top rod 23 and the bottom rod 21. This allows the three rotating seats 25 to be positioned in the center of the tunnel segment, ensuring uniform force distribution during rotation. This prevents uneven pressure distribution caused by the segment's placement position shift, thus avoiding damage to the rotating seats 25 due to uneven force. Furthermore, the position needs to be repeatedly adjusted during segment placement to ensure it is centered, significantly reducing the time required for adjusting the segment's position.

[0045] The tilting frame 11 is driven by the hydraulic cylinder 12 installed in the base frame 10 to tilt the tube segments placed on its surface from 0° to 180°.

[0046] Specifically, one end of the hydraulic cylinder 12 is rotatably connected to the base frame 10, and the other end is rotatably connected to the tilting frame 11. It should also be noted that a hydraulic pump station is provided on one side of the base frame 10 to control the hydraulic cylinder 12. The hydraulic pump station is a known technology, and its specific structure will not be described in detail here.

[0047] Meanwhile, the short-side load-bearing parts of both tilting frames 11 are composed of four load-bearing rods. However, the four load-bearing rods on the two tilting frames 11 are staggered, so that when the tilting frame 11 in the horizontal state rotates 90°, the load-bearing rods on it will be staggered with the load-bearing rods on the other tilting frame 11, and there will be no interference. At the same time, during the segment tilting process, the contact points between the load-bearing rods and the segments can be switched evenly, reducing the instantaneous force on a single contact point, reducing the risk of scratches and pressure damage on the segment surface, and extending the service life of the load-bearing rods of the tilting frame 11, reducing the cost of component wear and maintenance.

[0048] In the initial state, one of the flipping frames 11 is in a horizontal state and is used to place the tube segment, while the other flipping frame 11 is in a vertical state and is used to take over when the tube segment continues to flip after flipping 90°. In this state, when the horizontal flipping frame 11 drives the tube segment on it to flip 90°, the bottom of the tube segment will also come into contact with the support rod on the other flipping frame 11 (i.e., the flipping frame 11 in the initial state is vertical). At this time, the hydraulic cylinder 12 drives the flipping frame 11 to rotate, and the tube segment will continue to flip with it and will also flip over so that the other side faces upward.

[0049] like Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, an adjustable support assembly 30 is inserted into the flip frame 11;

[0050] The adjustable support assembly 30 includes two first electro-hydraulic rods 31 fixed to the bottom of the tilting frame 11. One end of the first electro-hydraulic rod 31 is fixed to a linkage plate 32. The linkage plate 32 is provided with a support rod 33 with one end inserted into the tilting frame 11. The three support rods 33 protrude from the surface of the tilting frame 11 through a threaded rod 35 assembled in the middle of the linkage plate 32. It should be noted that the degree of protrusion of the three support rods 33 can be adjusted separately as needed to support tube segments of different specifications.

[0051] Specifically, the threaded rod 35 is rotatably connected to the middle of the linkage plate 32, and the bottom end of the threaded rod 35 is provided with an internal hexagonal groove. When adjusting, personnel need to use a hexagonal wrench to rotate the threaded rod 35. At the same time, when the tube segment is rotated to 90° by the flipping frame 11, the first electric hydraulic rod 31 located above can be activated to drive the linkage plate 32 and the support rod 33 connected to it to move backward a certain distance, so that after the tube segment is flipped 90°, it is slightly tilted backward instead of vertical. In this state, the tube segment can avoid the instability of being placed in a vertical state.

[0052] The adjustable support assembly 30 also includes a threaded seat 34 fixed inside the support rod 33. The threaded seat 34 is threaded onto the threaded rod 35. A washer is fixed to the top of the support rod 33. Preferably, the washer at the end of the support rod 33 on the horizontal flip frame 11 is flat to adapt to the flat surface of the tube segment. In a set of support rods 33 on the vertical flip frame 11, the washer at the end of the support rods 33 on both sides is arc-shaped, and the washer at the end of the support rod 33 in the middle is flat to adapt to the arc-shaped surface of the tube segment.

[0053] Specifically, before actual use, the threaded rods 35 at different positions are rotated to drive the threaded seat 34 to move the support rod 33 upward, so that the support rods 33 at different positions are moved to the positions that match the support segments.

[0054] like Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, the tilting frame 11 is also equipped with two positioning components 40 for locking the support rod 33. The positioning component 40 includes a push plate 41 that is slidably installed in the tilting frame 11, and multiple insert rods 42 are fixed on one side of the push plate 41.

[0055] The outer wall of the support rod 33 is provided with multiple slots 43 that are compatible with the insertion rod 42. The inner wall of the flipping frame 11 is equipped with a second electric hydraulic rod 44, one end of which is connected to the push plate 41.

[0056] Specifically, before the support rod 33 needs to be moved, the push plate 41 is pulled by the second electro-hydraulic rod 44 to move the insertion rod 42 backward, thereby releasing the restriction on the position of the support rod 33. After the support rod 33 has been moved, the push plate 41 is pushed by the second electro-hydraulic rod 44 to move the insertion rod 42 forward, so that the insertion rod 42 is inserted into the slot 43 on the outer wall of the support rod 33 at the corresponding position, thereby reinforcing the position of the support rod 33.

[0057] Specifically, the turning machine, originally used for producing subway tunnel segments, operates / is used as follows:

[0058] 1. Initial Equipment Debugging: Check the status of each component of the equipment to ensure that the base frame 10 is placed stably and that the hydraulic pump station, hydraulic cylinder 12, adjustable rotating component 20, tilting frame 11, adjustable support component 30 and positioning component 40 are all working properly; adjust the initial state so that one tilting frame 11 is in a horizontal state (for placing the tube segment) and the other tilting frame 11 is in a vertical state (for relay support); according to the specifications of the tube segment to be tilted, use a hex wrench to rotate the threaded rod 35 of the adjustable support component 30 to drive the threaded seat 34 to move the support rod 33 up and down, adjust the height of the support rod 33, and at the same time ensure that the top of the support rod 33 on the horizontal tilting frame 11 is a flat shim, and the top shim of the support rod 33 on the vertical tilting frame 11 meets the requirements of arc shape (both sides) and flat shape (middle);

[0059] 2. Positioning and locking of support rod 33: After the support rod 33 is adjusted to the position, the second electric hydraulic rod 44 of the positioning component 40 is activated. The second electric hydraulic rod 44 pushes the push plate 41, which drives the insertion rod 42 to be inserted into the corresponding slot 43 on the outer wall of the support rod 33, thereby locking and positioning the support rod 33 to prevent displacement during subsequent flipping.

[0060] 3. Segment Placement and Centering Adjustment: Place the segment to be flipped on the horizontal flipping frame 11, ensuring that the segment and the pad at the top of the support rod 33 are in close contact; observe the segment placement position. If there is an off-center load, activate the third electro-hydraulic rod 26 of the adjustable rotating assembly 20. The third electro-hydraulic rod 26 pushes the rotating seat 25 to move, causing the top slide plate 24 and bottom slide plate 22 to slide in the top rod 23 and bottom rod 21 respectively. Adjust the position of the rotating seat 25 so that the rotation fulcrum is in the middle of the segment, thereby achieving segment centering and ensuring uniform force during flipping.

[0061] 4. First rotation of the tunnel segment (0°~90°): The hydraulic cylinder 12 is extended and retracted by the hydraulic pump station on one side of the bottom frame 10. The hydraulic cylinder 12 drives the horizontally rotating frame 11 to slowly rotate around the adjustable rotating component 20, thereby driving the tunnel segment to rotate synchronously. During the rotation, the first electric hydraulic rod 31 located above is activated, which drives the linkage plate 32 and the support rod 33 to move backward, so that the tunnel segment is slightly tilted backward when it is rotated to 90°. At this time, the bottom of the tunnel segment is in close contact with the support rod 33 on the initially vertical rotating frame 11, completing the first rotation and relay support switching.

[0062] 5. Second flip of the tube segment (90°~180°): By switching the driving direction of the hydraulic cylinder 12 through the hydraulic pump station, the flipping frame 11 (originally in the vertical state) that receives the tube segment continues to rotate around the adjustable rotating component 20, driving the tube segment to flip from 90° to 180°, realizing the flipping of the tube segment, and meeting the processing and maintenance needs of different sides of the tube segment in the production process.

[0063] 6. Segment Removal and Equipment Reset: After the segment is flipped 180°, control the extension and retraction of the hydraulic cylinder 12 to keep the flipping frame 11 in a stable state and remove the flipped segment; then, control the hydraulic cylinder 12 and each electric hydraulic rod to reset through the hydraulic pump station, restore the two flipping frames 11 to their initial state (one horizontal and one vertical), release the insertion rod 42 of the positioning component 40, and repeat the above steps according to the specifications of the next set of segments for continuous production.

[0064] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A turning machine for producing subway tunnel segments, comprising a base frame (10), characterized in that, Both sides of the upper surface of the bottom frame (10) are connected to adjustable rotating components (20) by mounting short columns. A flipping frame (11) is installed on the adjustable rotating component (20). The flipping frame (11) is driven to rotate the tube segments placed on its surface from 0° to 180° by a hydraulic cylinder (12) assembled in the bottom frame (10). An adjustable support component (30) is inserted into the flipping frame (11). The adjustable support assembly (30) includes two first electric hydraulic rods (31) fixed to the bottom of the tilting frame (11). One end of the first electric hydraulic rod (31) is fixed with a linkage plate (32). The linkage plate (32) is provided with a support rod (33) with one end inserted into the tilting frame (11). The three support rods (33) are protruding from the surface of the tilting frame (11) through a threaded rod (35) assembled in the middle of the linkage plate (32) to support tube segments of different specifications. The flipping frame (11) is also equipped with two positioning components (40) for locking the support rod (33). The positioning component (40) includes a push plate (41) that is slidably installed in the flipping frame (11). Multiple insert rods (42) are fixed on one side of the push plate (41). The outer wall of the support rod (33) is provided with a plurality of slots (43) that are compatible with the insert rod (42), and the inner wall of the flipping frame (11) is provided with a second electric hydraulic rod (44), one end of the second electric hydraulic rod (44) is connected to the push plate (41); The adjustable rotating assembly (20) includes a bottom rod (21) fixed to the bottom frame (10), and a bottom slide plate (22) is slidably connected to the bottom rod (21). A top rod (23) is fixed on one side of the lower surface of the flipping frame (11). A top slide plate (24) is slidably connected inside the top rod (23). The top slide plate (24) is rotatably connected to the bottom slide plate (22) through a rotating seat (25).

2. A turning machine for producing subway tunnel segments according to claim 1, characterized in that, The adjustable support assembly (30) also includes a threaded seat (34) fixed inside the support rod (33), the threaded seat (34) being threaded onto the threaded rod (35), and a washer being fixed to the top of the support rod (33).

3. A turning machine for producing subway tunnel segments according to claim 1, characterized in that, The bottom of the base rod (21) is fixed with a mounting base, and a third electro-hydraulic rod (26) is mounted on the mounting base.

4. A turning machine for producing subway tunnel segments according to claim 3, characterized in that, One of the rotating seats (25) has a connecting seat fixed on its outer wall, and one end of the third electric hydraulic rod (26) is connected to the connecting seat.

Images