Large-span vertical low-slump concrete warehousing device

Abstract

The invention relates to the technical field of concrete transportation equipment, and particularly discloses a large-span vertical low-slump concrete warehousing device. The walking track comprises a left walking track and a right walking track; the left walking track is arranged on the left side wall of the tail water channel. The right walking track is arranged on the right side wall of the tail water channel. The left end of the large-span truss is connected to the left walking track, and the right end is connected to the right walking track; the driving device is arranged at the bottom of the large-span truss and used for driving the large-span truss to move along the walking track. The material conveying structure is connected to the large-span truss and used for conveying concrete to the bottom end of the tail water channel from the large-span truss. The large-span truss is driven by the driving device to move on the walking track, the conveying structure is used for vertical conveying, concrete is conveyed to the bottom end of the tail water channel, low-slump concrete conveying is completed, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete transportation equipment, and particularly relates to a large-span vertical low-slump concrete feeding device into a bin. Background Art

[0002] The tailrace of a hydropower station is a channel that discharges the tail water from the power station building to the downstream riverbed. The two sides of the tailrace of the hydropower station are tail water retaining walls. After the concrete pouring of the tail water retaining walls is completed, the middle is the tail water floor slab concrete. The tail water floor slab concrete is connected to the water outlet of the power station building. To increase the anti-scouring and wear-resistant performance of the tail water floor slab concrete and ensure the construction quality of the tail water floor slab concrete, it is required by design to use concrete with a slump of 50 - 70 mm for pouring.

[0003] Conventional concrete is poured into the bin by means of building a concrete chute. To ensure the fluidity of the concrete, the slump of the concrete in the chute is usually 180 mm - 200 mm, and the slump is relatively large. When pumping concrete (boom pump or stationary pump) is used for pouring, the slump is not less than 160 mm. The slumps of the above two pouring processes are both relatively large, and the hydration heat of the concrete is relatively high. The tail water floor slab belongs to large-volume and large-area slab-shaped concrete, and is extremely prone to cracking, resulting in the inability to guarantee the construction quality of the concrete, causing damage to the concrete floor slab during power generation, and affecting the power generation efficiency of the project. Therefore, only low-slump concrete can be used for pouring during the construction of the tail water floor slab concrete. However, it is not applicable to use the above two methods for pouring into the bin. Therefore, a large-span vertical low-slump concrete feeding device into a bin is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a large-span vertical low-slump concrete feeding device into a bin, so as to solve the problem that the existing concrete feeding methods are only applicable to the transportation of concrete with a relatively large slump and are unable to transport concrete with a relatively small slump.

[0005] To solve the above technical problems, the technical solutions adopted by the present invention are as follows: A large-span vertical low-slump concrete feeding device into a bin, comprising a large-span truss, a walking track, a driving device, and a feeding structure; The walking track includes a left walking track and a right walking track; the left walking track is arranged on the left side wall of the tailrace, and the right walking track is arranged on the right side wall of the tailrace; The large-span truss is connected to the left walking track at the left end and to the right walking track at the right end; The driving device is arranged at the bottom of the large-span truss and is used to drive the large-span truss to move along the walking track; The feeding structure is connected to the large-span truss and is used to transport the concrete from the large-span truss to the bottom end of the tailrace.

[0006] As a further technical solution of the above scheme, the left traveling track includes a traveling frame and a plurality of support cylinders; the plurality of support cylinders are arranged along the top of the left side wall of the tailrace channel, and the upper ends of the support cylinders support to the bottom of the traveling frame, supporting the traveling frame in a horizontal state.

[0007] As a further technical solution of the above scheme, the driving device includes a left driving member and a right driving member; the left driving member includes a first motor and a first roller, the first motor is arranged at the lower left of the large-span truss, the output shaft of the first motor is connected to the first roller, and the first roller is used in matching with the left traveling track; the right driving member has the same structure as the left driving member, is arranged on the right side of the large-span truss, and is used in matching with the right traveling track.

[0008] As a further technical solution of the above scheme, the feeding structure includes an aggregate hopper and a chute; the aggregate hopper is arranged on the large-span truss, the upper end of the chute is connected to the discharge port of the aggregate hopper, and the lower end of the chute is aligned with the bottom end of the tailrace channel.

[0009] As a further technical solution of the above scheme, a plurality of the feeding structures are provided and distributed along the cross-bar direction of the large-span truss.

[0010] As a further technical solution of the above scheme, it further includes a second motor, a second roller and a limit frame; the limit frame bears the lower end of the aggregate hopper, and a second motor is arranged at the lower end of the limit frame, the output shaft of the second motor is connected to the second roller, and the second roller moves along the bottom cross-bar of the large-span truss, driving the aggregate hopper to move horizontally.

[0011] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention respectively arranges traveling tracks on both sides of the tailrace channel of the hydropower station, sets the large-span cross beam on the traveling tracks, and drives the large-span truss to move on the traveling tracks through the driving device; during the movement of the large-span truss, the feeding structure is used for vertical feeding to transport the concrete to the bottom end of the tailrace channel of the hydropower station. As the large-span truss moves, the concrete covers each position of the tailrace channel. The form of the aggregate hopper and the chute is adopted to adapt to the transportation of low-slump concrete, completing the transportation of low-slump concrete and improving the construction efficiency. Description of the Drawings

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the tailrace channel.

[0013] Figure 2 It is a side structural schematic diagram of this device.

[0014] Figure 3 It is a front schematic diagram of the connection relationship between the large-span truss and the driving device.

[0015] Figure 4Schematic diagram of the connection relationship of another embodiment of the long-span truss and the material conveying structure.

[0016] The interpretations of the labels in the figure are as follows: Long-span truss - 1; Left traveling track - 21; Traveling frame - 211; Support oil cylinder - 212; Right traveling track - 22; Left driving member - 31; First motor - 311; First roller - 312; Right driving member - 32; Aggregate hopper - 41; Chute - 42; Tailrace - 5; Second motor - 61; Second roller - 62; Limit frame - 63. Specific implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention, so as to have a further understanding of the concept of the present invention, the technical problems to be solved, the technical features constituting the technical solutions, and the technical effects brought.

[0018] As Figures 1 - 4 shown, a long-span vertical low-slump concrete feeding device includes a long-span truss 1, traveling tracks, a driving device, and a material conveying structure; The traveling tracks include a left traveling track 21 and a right traveling track 22; the left traveling track 21 is arranged on the left side wall of the tailrace 5, and the right traveling track 22 is arranged on the right side wall of the tailrace 5; The long-span truss 1 is connected to the left traveling track 21 at the left end and to the right traveling track 22 at the right end; The driving device is arranged on the long-span truss 1 and is used to drive the long-span truss 1 to move along the traveling tracks 2; The material conveying structure is arranged on the long-span truss 1 and is used to transport the concrete from the long-span truss 1 to the bottom end of the tailrace 5.

[0019] When using this device, first, the traveling tracks are erected on the left side wall and the right side wall of the tailrace 5, and the left end and the right end of the long-span truss 1 are respectively connected to the left traveling track 21 and the right traveling track 22. At this time, the concrete is transported from the long-span truss 1 to the bottom end of the tailrace 5 through the material conveying structure; start the driving device to drive the long-span truss 1 to move along the traveling tracks, expand the area of concrete feeding, and complete the feeding operation.

[0020] As Figure 2As shown, as a preferred embodiment, the left traveling track 21 includes a traveling frame 211 and a plurality of support cylinders 212; the plurality of support cylinders 212 are arranged along the top of the left side wall of the tailrace canal 5, and the upper ends of the support cylinders 212 support to the bottom of the traveling frame 211 to support the traveling frame 211 in a horizontal state. In this embodiment, since the radian of the left and right side walls of the tailrace canal 5 varies at different positions, when setting the traveling frame 211, the length of the support cylinder 212 is adjusted according to the position of the support cylinder 212, and the traveling frame 211 is jacked up to make the traveling frame 211 in a horizontal state. At the same time, the large-span truss requires multi-point support, and using a plurality of support cylinders 212 to support at different positions can further improve the stability of the device.

[0021] As Figure 3 shown, as a preferred embodiment, the driving device includes a left driving member 31 and a right driving member 32; the left driving member 31 includes a first motor 311 and a first roller 312. The first motor 311 is arranged at the lower left side of the large-span truss 1, and the output shaft of the first motor 311 is connected to the first roller 312. The first roller 312 is used in matching with the left traveling track 21; the right driving member 32 has the same structure as the left driving member 31 and is arranged on the right side of the large-span truss 1 and is used in matching with the right traveling track 22. In this embodiment, when the first motor 311 is started, the first motor 311 drives the first roller 312 to rotate, and the first roller 312 moves along the left traveling track 21; at the same time, the right driving member 32 moves on the right side, jointly driving the large-span truss 1 to move.

[0022] As Figure 3 shown, as a preferred embodiment, the material conveying structure includes a collecting hopper 41 and a chute 42; the collecting hopper 41 is arranged on the large-span truss 1, and the upper end of the chute 42 is connected to the discharge port of the collecting hopper 41, and the lower end of the chute 42 is aligned with the bottom end of the tailrace canal 5. In this embodiment, when conveying concrete, the operator adds materials from the collecting hopper 41, and the concrete is transported vertically downward through the chute 42 and falls from the outlet of the chute 42 to the bottom end of the tailrace canal 5. By directly using the chute 42 to transport low-slump concrete, it adapts to lower fluidity and ensures the transportation efficiency of the concrete.

[0023] As a preferred embodiment, a plurality of the material conveying structures are provided and distributed along the cross-bar direction of the large-span truss 1. In this embodiment, in order to further improve the coverage area and uniformity of the concrete, a plurality of material conveying structures are provided, and different material conveying structures convey materials at different positions simultaneously, improving the conveying efficiency.

[0024] As Figure 4As shown, as a preferred embodiment, it further includes a second motor 61, a second roller 62 and a limit frame 63; the limit frame 63 bears the lower end of the aggregate hopper 41, and a second motor 61 is provided at the lower end of the limit frame 63. The output shaft of the second motor 61 is connected to the second roller 62, and the second roller 62 moves along the bottom crossbar of the long-span truss 1 to drive the aggregate hopper 41 to move horizontally. In the embodiment, there is only one feeding structure. When feeding, the second motor 61 is started. The second motor 61 rotates to drive the second roller 62 to rotate. The second roller 62 moves on the bottom crossbar of the long-span truss 1 to drive the limit frame 63 and the aggregate hopper 41 to move. At this time, the chute 42 moves below the aggregate hopper 41 to increase the conveying coverage range of the concrete material and improve the conveying efficiency of the concrete; the second roller 62 is provided as four, which can be individually paired with four second motors 61 or can move synchronously through an existing transmission structure. The limit frame 63 is used as an installation support to improve stability; since this device is applied to the transportation of low-slump concrete and the fluidity of the concrete is poor, multiple transports should be avoided. Therefore, the movement of the chute 42 itself facilitates the transportation of the concrete.

[0025] The "connection" and "fixation" mentioned in the description of the present invention can be fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention should be understood according to the specific situation.

[0026] In the description of the present invention, terms such as "center", "upper", "lower", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large-span vertical low-slump concrete silo device, characterized by: It comprises a large-span truss (1), a walking track, a driving device and a material conveying structure; The walking track comprises a left walking track (21) and a right walking track (22); the left walking track (21) is arranged on the left side wall of the tailwater channel (5), and the right walking track (22) is arranged on the right side wall of the tailwater channel (5); A long-span truss (1), the left end of which is connected to the left walking track (21), and the right end of which is connected to the right walking track (22); A driving device, arranged at the bottom of the large-span truss (1), and used to drive the large-span truss (1) to move along the walking track; The material conveying structure is connected to the long-span truss (1) and is used to transport concrete from the long-span truss (1) to the bottom end of the tailwater channel (5).

2. A large-span vertical low-slump concrete storage device as claimed in claim 1, characterized in that: The left walking track (21) comprises a walking frame (211) and a plurality of supporting cylinders (212); the plurality of supporting cylinders (212) are arranged along the top of the left side wall of the tailwater channel (5), and the upper ends of the supporting cylinders (212) are supported to the bottom of the walking frame (211), so that the walking frame (211) is supported in a horizontal state.

3. A large-span vertical low-slump concrete storage device as claimed in claim 1, characterized in that: The driving device comprises a left driving member (31) and a right driving member (32); the left driving member (31) comprises a first motor (311) and a first roller (312); the first motor (311) is arranged at the lower left side of the long-span truss (1); the output shaft of the first motor (311) is connected to the first roller (312); the first roller (312) is used in conjunction with the left walking track (21); the right driving member (32) has the same structure as the left driving member (31), is arranged on the right side of the long-span truss (1), and is used in conjunction with the right walking track (22).

4. A large-span vertical low-slump concrete storage device as claimed in claim 1, characterized in that: The material conveying structure comprises a collecting hopper (41) and a chute (42); the collecting hopper (41) is arranged on the large-span truss (1), the upper end of the chute (42) is connected to the discharge port of the collecting hopper (41), and the lower end of the chute (42) is aligned with the bottom end of the tailwater channel (5).

5. A large-span vertical low-slump concrete storage device as claimed in claim 4, characterized in that: The material conveying structures are provided in plurality and are distributed along the crossbar direction of the long-span truss (1).

6. A large-span vertical low-slump concrete storage device as claimed in claim 4, characterized in that: It also includes a second motor (61), a second roller (62) and a limiting frame (63); the limiting frame (63) supports the lower end of the collecting hopper (41), and the lower end of the limiting frame (63) is provided with a second motor (61), the output shaft of the second motor (61) is connected to the second roller (62), and the second roller (62) moves along the bottom cross bar of the large-span truss (1), driving the collecting hopper (41) to move horizontally.

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