Hydropower station multifunctional runner bent aggregate transfer cart

Abstract

A multifunctional turning wheel bent frame aggregate transfer trolley for a hydropower station comprises a trolley body, turning plates and a lifting plate, rolling wheels are arranged at the four corners of the bottom of the trolley body, the turning plates are arranged on the two sides of the trolley body, and the turning plates are hinged to the upper end face of the trolley body through first hinges. A supporting device is arranged between the turnover plate and the trolley body, a lifting plate is arranged in the trolley body, movable hanging rings are arranged at the four corners of the upper end face of the trolley body, and a handrail is connected to the outer side wall of the trolley body. According to the utility model, through free change of the form, the device can be suitable for carrying aggregate of bent frames with different specifications, can be manually pushed on the flat ground and can also be hoisted in the air, so that the personal safety of workers is ensured while the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance equipment for hydropower stations, in particular to a cart for transporting aggregates of a multifunctional runner rack of a hydropower station. Background Art

[0002] During the overhaul of Francis turbine generator sets at large and medium-sized hydropower stations, runner maintenance is a critical and complex task. During maintenance, runner maintenance rack aggregates must be stored in the tailwater operation gallery (the lowest accessible level). These aggregates typically consist of components of varying lengths and weights, and their assembly and disassembly are crucial to ensuring the proper operation of the turbine.

[0003] However, in actual operation, the aggregate transportation process faces many challenges:

[0004] 1. Traditional wheelbarrows are usually simple in design and cannot bear the weight of multiple heavy aggregates. The wheelbarrows are small in size and cannot handle large and special-shaped aggregates.

[0005] 2. In the absence of suitable tools, on-site workers often use manual lifting to transport aggregates, which is not only inefficient but also prone to fatigue and injury.

[0006] 3. During the transportation process, due to the weight and size of the aggregate, accidents such as slipping and collision are prone to occur, which brings greater safety risks to on-site workers. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a multifunctional rotary wheel rack aggregate transfer cart for hydropower stations. The cart can be suitable for transporting rack aggregates of different specifications by freely changing its shape. It can be pushed manually on the ground or lifted in the air, which improves the operation efficiency while ensuring the personal safety of workers.

[0008] A multifunctional wheel-rack aggregate transfer cart for a hydropower station comprises a trolley body, a folding plate and a lifting plate. Rollers are provided at the four corners of the bottom of the trolley body, folding plates are provided at both sides of the trolley body, the folding plates are hinged to the upper end surface of the trolley body through a first hinge, a supporting device is provided between the folding plate and the trolley body, a lifting plate is provided inside the trolley body, movable lifting rings are provided at the four corners of the upper end surface of the trolley body, and a handrail is connected to the outer side wall of the trolley body.

[0009] In a preferred embodiment, the supporting device includes a hydraulic rod, one end of which is hinged to the bottom surface of the folding plate through a second hinge, and the other end of the hydraulic rod is hinged to the front and rear side walls of the trolley body through a third hinge.

[0010] In the preferred solution, strip-shaped slide grooves are provided at the front and rear sides of the trolley body, and side rods are vertically connected to the side walls of the lifting plate. The side rods are clamped in the slide grooves and enable the lifting plate to slide vertically along the strip-shaped slide grooves.

[0011] In the preferred solution, the movable lifting ring includes a telescopic column, a ring-shaped lifting ring and a dial plate; cylindrical grooves are opened at the four corners of the trolley body, the telescopic column is clamped in the cylindrical groove and slides freely up and down, a baffle is provided on the top surface of the cylindrical groove to limit the telescopic column, the upper end of the telescopic column is connected to the ring-shaped lifting ring, and a dial plate is provided on the side wall of the telescopic column.

[0012] In the preferred solution, the folding plate is fixed by a first limiting device after being flipped upward, and the lifting plate is fixed by a second limiting device after sliding to the upper end surface of the trolley body.

[0013] In the preferred solution, the first limiting device includes a first side plate, a first threaded hole and a first limiting bolt. The first side plate is fixedly welded to the side wall of the folding plate. The first threaded hole is correspondingly opened on the first side plate and the trolley body. The first limiting bolt locks the position of the folding plate after passing through the first threaded hole.

[0014] In the preferred solution, the second limiting device includes a second side plate, a second threaded hole and a second limiting bolt. The second side plate is fixedly welded to the upper end face of the trolley body. The second side plate and the lifting plate are correspondingly provided with second limiting bolts. The second limiting bolt passes through the second threaded hole to lock the position of the lifting plate.

[0015] In a preferred solution, the trolley body is equipped with a partition, and both sides of the partition are movably connected to the strip-shaped sliding grooves on the side walls of the trolley body.

[0016] In a preferred solution, fixing holes are evenly formed on the folding plate and the lifting plate.

[0017] A multifunctional wheel-rack aggregate transfer cart for a hydropower station has the following beneficial effects during actual use:

[0018] 1. This trolley adopts mechanized transportation mode to replace traditional manual handling, which greatly improves its transportation efficiency while ensuring its safety;

[0019] 2. The trolley can freely unfold the folding plates on both sides and lift the internal lifting plate, thereby effectively increasing the bearing area of the top of the trolley, making it suitable for transporting large or special-shaped aggregates;

[0020] 3. When the device needs to be lifted, the four corner lifting rings of the trolley can be raised freely. When transporting large materials, they can also be retracted into the cylindrical slot to ensure the flatness of the top. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is an enlarged schematic diagram of the support device structure of the utility model;

[0024] Figure 3 This is an enlarged schematic diagram of the structure of the first limiting device of the utility model;

[0025] Figure 4 This is an enlarged schematic diagram of the structure of the second limiting device of the utility model;

[0026] Figure 5 This is an enlarged schematic diagram of the movable lifting ring structure of the utility model;

[0027] Figure 6 This is a schematic diagram of the partition installation method of the utility model.

[0028] In the figure: trolley body 1, roller 2, handrail 3, folding plate 4, lifting plate 5, side rod 501, movable lifting ring 6, telescopic column 601, ring lifting ring 602, dial plate 603, supporting device 7, hydraulic rod 701, second hinge 702, third hinge 703, first hinge 8, first limiting device 9, first side plate 901, first threaded hole 902, first limiting bolt 903, second limiting device 10, second side plate 101, second threaded hole 102, second limiting bolt 103, strip slide 11, cylindrical groove 12, baffle 13, partition 14, fixing hole 15. DETAILED DESCRIPTION

[0029] like Figure 1 As shown, a multifunctional wheel-rack aggregate transfer cart for a hydropower station includes a trolley body 1, a folding plate 4 and a lifting plate 5. Rollers 2 are provided at the four corners of the bottom of the trolley body 1, and folding plates 4 are provided on both sides of the trolley body 1. The folding plates 4 are hinged to the upper end surface of the trolley body 1 through a first hinge 8. A supporting device 7 is provided between the folding plate 4 and the trolley body 1. A lifting plate 5 is provided inside the trolley body 1, and movable lifting rings 6 are provided at the four corners of the upper end surface of the trolley body 1. A handrail 3 is connected to the outer wall of the trolley body 1.

[0030] During use of the device, the trolley body 1 can be moved by pushing the handrail 3, and the trolley body 1 can facilitate the transportation of aggregate materials. The top area of the trolley body 1 can be expanded by flipping the folding plate 4 around the first hinge 8, and the lifting plate 5 can be spliced into one with the folding plate 4 by lifting it upward, so as to be suitable for the transportation of large or special-shaped aggregates.

[0031] The preferred solution is Figure 2 As shown, the supporting device 7 includes a hydraulic rod 701, one end of the hydraulic rod 701 is hinged to the bottom surface of the folding plate 4 through a second hinge 702, and the other end of the hydraulic rod 701 is hinged to the front and rear side walls of the trolley body 1 through a third hinge 703. The above structure can facilitate manual flipping of the folding plate 4 and effectively save the external force applied during flipping.

[0032] The preferred solution is Figure 4 As shown, a strip-shaped slide groove 11 is opened at the front and rear sides of the trolley body 1, and a side rod 501 is vertically connected to the side wall of the lifting plate 5. The side rod 501 is clamped in the slide groove and enables the lifting plate 5 to slide vertically along the strip slide groove 11. When the lifting plate 5 needs to be moved up and down, it is only necessary to hold the side rod 501 and move it up and down to move the lifting plate 5 synchronously.

[0033] The preferred solution is Figure 5 As shown, the movable lifting ring 6 includes a telescopic column 601, an annular lifting ring 602 and a dial plate 603; cylindrical grooves 12 are opened at the four corners of the trolley body 1, the telescopic column 601 is clamped in the cylindrical groove 12 and slides freely up and down, and a baffle 13 is provided on the top surface of the cylindrical groove 12 to limit the telescopic column 601 to prevent the telescopic column 601 from sliding out of the upper end of the cylindrical groove 12, and the upper end of the telescopic column 601 is connected with an annular lifting ring 602, and a dial plate 603 is provided on the side wall of the telescopic column 601. The telescopic column 601 can be moved up and down by dialing the dial plate 603. When the annular lifting ring 602 extends out of the cylindrical groove 12, it can be conveniently connected to the cable. When large aggregates need to be transported, the movable lifting ring 6 can be retracted into the cylindrical groove 12 to ensure the flatness of the top of the trolley, without affecting the transportation of large materials by the trolley body 1 and achieving full flat loading.

[0034] The preferred solution is Figure 3 and Figure 4 As shown, after the movable folding plate 4 is flipped upward by 90°, it is limited and fixed by the first limiting device 9, and after the lifting plate 5 slides to the upper end surface of the trolley body 1, it is limited and fixed by the second limiting device 10; the first limiting device 9 includes a first side plate 901, a first threaded hole 902 and a first limiting bolt 903, and the first side plate 901 is fixedly welded to the side wall of the folding plate 4, and the first threaded hole 902 is correspondingly opened on the first side plate 901 and the trolley body 1, and the first limiting bolt 903 locks the position of the folding plate 4 after passing through the first threaded hole 902; the second limiting device 10 includes a second side plate 101, a second threaded hole 102 and a second limiting bolt 103, and the second side plate 101 is fixedly welded to the upper end surface of the trolley body 1, and the second side plate 101 and the lifting plate 5 are correspondingly opened with a second limiting bolt 103, and the second limiting bolt 103 locks the position of the lifting plate 5 after passing through the second threaded hole 102.

[0035] The preferred solution is Figure 6 As shown, the trolley body 1 is equipped with a partition 14, and both sides of the partition 14 are movably connected to the strip slide 11 on the side wall of the trolley body 1; if materials need to be loaded in compartments and classified, the partition 14 can be installed in advance and used to classify and store materials; when classification is not required, the partition 14 can be selected not to be installed.

[0036] The preferred solution is Figure 6 As shown, fixing holes 15 are evenly opened on the folding plate 4 and the lifting plate 5. When transporting large aggregates and other materials, a cable tie or a fixing rope can be passed through the fixing hole 15 and tied to the folding plate 4 and the lifting plate 5 to prevent the objects from slipping during operation and causing safety accidents.

Claims

1. A multifunctional wheel rack aggregate transport cart for a hydropower station, comprising a cart body (1), a folding plate (4) and a lifting plate (5), characterized in that: Rollers (2) are provided at the four corners of the bottom of the trolley body (1), folding plates (4) are provided at both sides of the trolley body (1), the folding plates (4) are hinged to the upper end surface of the trolley body (1) through a first hinge (8), a supporting device (7) is provided between the folding plates (4) and the trolley body (1), a lifting plate (5) is provided inside the trolley body (1), movable lifting rings (6) are provided at the four corners of the upper end surface of the trolley body (1), and a handrail (3) is connected to the outer wall of the trolley body (1).

2. The multifunctional wheel rack aggregate transport cart for a hydropower station according to claim 1, characterized in that: The supporting device (7) includes a hydraulic rod (701), one end of which is hinged to the bottom surface of the folding plate (4) via a second hinge (702), and the other end of which is hinged to the front and rear side walls of the trolley body (1) via a third hinge (703).

3. The multifunctional wheel-rack aggregate transport cart for a hydropower station according to claim 1 is characterized in that: The trolley body (1) is provided with strip-shaped slide grooves (11) at the front and rear sides, and the side walls of the lifting plate (5) are vertically connected to side rods (501) correspondingly. The side rods (501) are engaged in the slide grooves and enable the lifting plate (5) to slide vertically along the strip-shaped slide grooves (11).

4. The multifunctional wheel-rack aggregate transport cart for a hydropower station according to claim 1 is characterized in that: The movable lifting ring (6) includes a telescopic column (601), an annular lifting ring (602) and a dial plate (603); cylindrical grooves (12) are provided at the four corners of the trolley body (1), the telescopic column (601) is clamped in the cylindrical groove (12) and slides freely up and down, a baffle (13) is provided on the top surface of the cylindrical groove (12) and limits the telescopic column (601), the upper end of the telescopic column (601) is connected to the annular lifting ring (602), and a dial plate (603) is provided on the side wall of the telescopic column (601).

5. The multifunctional wheel rack aggregate transport cart for a hydropower station according to claim 1, characterized in that: The folding plate (4) is rotated upward by 90 degrees and then fixed in position by a first limiting device (9). The lifting plate (5) is slid to the upper end surface of the trolley body (1) and then fixed in position by a second limiting device (10).

6. The multifunctional wheel-rack aggregate transport cart for a hydropower station according to claim 5, characterized in that: The first limiting device (9) includes a first side plate (901), a first threaded hole (902) and a first limiting bolt (903). The first side plate (901) is fixedly welded to the side wall of the folding plate (4). The first threaded hole (902) is correspondingly provided on the first side plate (901) and the trolley body (1). The first limiting bolt (903) passes through the first threaded hole (902) to lock the position of the folding plate (4).

7. The multifunctional wheel-rack aggregate transport cart for a hydropower station according to claim 5, characterized in that: The second limiting device (10) includes a second side plate (101), a second threaded hole (102) and a second limiting bolt (103). The second side plate (101) is fixedly welded to the upper end surface of the trolley body (1). The second limiting bolt (103) is correspondingly provided on the second side plate (101) and the lifting plate (5). The second limiting bolt (103) passes through the second threaded hole (102) to lock the position of the lifting plate (5).

8. The multifunctional wheel-rack aggregate transport cart for a hydropower station according to claim 3 is characterized by: The trolley body (1) is equipped with a partition (14), and both sides of the partition (14) are movably connected to the strip-shaped sliding grooves (11) on the side walls of the trolley body (1).

9. The multifunctional wheel-rack aggregate transport cart for a hydropower station according to claim 1, characterized in that: Fixing holes (15) are evenly formed on the folding plate (4) and the lifting plate (5).

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