Transfer device for a miter gate leaf
By designing a transfer device to realize the transfer and centralized storage of the gate leaves of the stacked beam gate, the problem of high structural and performance requirements of the hoist was solved, the amount of civil engineering work and cost were reduced, and safety and timeliness were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-23
AI Technical Summary
In hydropower station projects, the opening and closing of stacked beam gates requires the hoisting of beam segments one by one, resulting in high requirements for the structure and performance of the hoist. In addition, a gate storage slot needs to be reserved in the direction perpendicular to the water flow, resulting in a large amount of civil engineering work. Furthermore, conventional improvement solutions are costly, occupy a large area, and pose high safety risks.
Design a transfer device including a water inlet, a stacked beam gate storage area, a gantry crane track and a one-way gantry crane. Through the horizontally arranged gantry crane track and the vertically intersecting trolley track, the transfer trolley and lifting mechanism are used to realize the transfer and storage of the stacked beam gate leaves. Combined with the one-way gantry crane, the stacked beam gate leaves are centrally stored.
It reduces the amount of civil engineering work, improves operational safety and timeliness, saves project investment, and avoids the high cost and space occupation of large-span, large-capacity bidirectional gantry cranes.
Smart Images
Figure CN224393751U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of design of opening and closing mechanisms for stacked beam gates in water conservancy and hydropower projects, specifically relating to a transfer device for the gate leaf of a stacked beam gate. Background Technology
[0002] In hydropower station projects, compared to large integral planar gates, stacked beam gates, used as maintenance gates for gate slot inspection and maintenance, offer advantages such as simple structure, easy manufacturing, lower cost, and more convenient and flexible transportation and installation. They are particularly suitable for situations with large orifice sizes or limited on-site hoisting capabilities. However, because stacked beam gates consist of multiple independent beam segments, each segment needs to be hoisted individually during opening and closing, and the transport and storage of these segments require multiple repetitions. This places high demands on the structure and performance of the hoisting mechanism. Furthermore, sufficient space needs to be reserved as a gate storage slot on the dam section perpendicular to the water flow direction of the gate slot, resulting in a large amount of civil engineering work and high construction costs. In some projects, due to terrain and investment constraints, it is not feasible to set up a gate storage slot along the gate slot direction, requiring the establishment of independent gate leaf storage areas on both sides of the gate slot. The conventional solution for these design schemes is to change the unidirectional gantry crane to a bidirectional gantry crane, significantly increasing the gantry crane's span and capacity. However, this also has disadvantages such as high cost, large footprint, and high safety risks. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a transfer device for the gate leaf of a stacked beam gate, which can conveniently realize the reverse transport of the gate leaf of the stacked beam gate in the vertical direction of the one-way gantry crane running track, so as to facilitate the centralized storage of the gate leaf of the stacked beam gate.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a transfer device for the gate leaf of a stacked beam gate, including a water inlet, a stacked beam gate storage area, a gantry crane track, and a one-way gantry crane. A gate slot for the stacked beam gate is provided on the side wall of the water inlet. The gantry crane track is arranged horizontally above the gate slot. The one-way gantry crane is installed on the gantry crane track and is equipped with a grab beam. The gantry crane track extends along the width of the water inlet, so that the one-way gantry crane has a first state located directly above the gate slot and a second state located beside the water inlet. A trolley track intersecting perpendicularly to the gantry crane track is arranged beside the water inlet. A transfer trolley is installed on the trolley track and is equipped with a power unit to drive it to reciprocate along the trolley track. The structure includes a transfer trolley with a lifting mechanism and a loading platform for transferring and placing the stacked beam gate leaves. The trolley track has a first end near the gantry crane track and a second end away from the gantry crane track. The stacked beam gate storage area is located at the second end of the trolley track, and storage platforms for storing the stacked beam gate leaves are arranged on both sides of the trolley track. When the transfer trolley is at the first end of the trolley track, the one-way gantry crane can place the stacked beam gate leaves on the loading platform or lift them from the loading platform by grabbing the beam. When the transfer trolley is at the second end of the trolley track, the stacked beam gate leaves can be lowered and placed on the storage platform or lifted from the storage platform by lifting the loading platform.
[0005] A further preferred embodiment is that the lifting mechanism includes four hydraulic cylinders arranged in a rectangular shape, and the loading platform is composed of support blocks located at the moving ends of the hydraulic cylinders.
[0006] A further preferred embodiment is that the transfer trolley is equipped with a limit screw for fixing and connecting the gate leaf of the stacked beam gate. The axis of the limit screw is set vertically, and a limit nut is provided on the limit screw.
[0007] A further preferred option is to install limit blocks on the transfer trolley at both ends of its travel direction to limit the gate leaf of the stacked beam gate.
[0008] A further preferred embodiment is that the first and second ends of the trolley track are respectively equipped with trolley stops that limit the movement of the transfer trolley, and the transfer trolley is equipped with a travel limit component that cooperates with the trolley stops.
[0009] A further preferred option is that the storage platform is equipped with limiting protrusions or limiting grooves that serve to position and limit the gate leaf of the stacked beam gate.
[0010] A further preferred embodiment is that the power mechanism of the transfer trolley includes an electric motor, a reducer, and wheels, with the output end of the electric motor connected to the input end of the wheels through the reducer.
[0011] The operating principle of this utility model is as follows: When it is necessary to remove the gate leaf of the stacked beam gate from the gate slot of the water inlet, the gate leaf is first transported to the junction of the gate machine track and the trolley track by the one-way gantry crane. Then, the transfer trolley is operated to the designated location below the one-way gantry crane (i.e., the first end of the trolley track). The lifting mechanism is started to lift the loading platform to connect the gate leaf. After the gate leaf is fixed, the gate leaf is transported back to the stacked beam gate storage area (i.e., the second end of the trolley track) by the transfer trolley. At this time, the loading platform is lowered by the lifting mechanism to place the gate leaf on the storage platform. After the transfer trolley exits, it runs to the junction of the gate machine track and the trolley track. The above operation is repeated until all the gate leaves of the stacked beam gate are transferred.
[0012] When it is necessary to install the gate leaf of the stacked beam gate into the gate slot of the water inlet, the lifting mechanism is used to lower the loading platform to a suitable height in advance (below the support surface of the storage platform). The transfer trolley is then operated to the area where the storage platform is located (i.e., the second end of the trolley track). The lifting mechanism is then activated to lift the loading platform to connect the gate leaf of the stacked beam gate. After the gate leaf of the stacked beam gate is fixed, the transfer trolley is used to transport the gate leaf of the stacked beam gate to the designated location below the one-way gantry crane (i.e., the first end of the trolley track). At this time, the one-way gantry crane is used to hoist and place the gate leaf of the stacked beam gate into the gate slot of the stacked beam gate. The above operation is repeated until all the gate leaves of the stacked beam gate are installed.
[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: When hydropower station projects are limited by terrain and investment and cannot set up storage slots along the gate slot direction of the stacked beam gate, the storage of the gate leaves of the stacked beam gate can only be selected on both sides of the gate slot. The operation mode of the unidirectional gantry crane cannot meet the requirements, while the large-span, large-capacity bidirectional gantry crane not only occupies a large space, but also has excessively high construction costs, which is neither economical nor practical, and also puts higher requirements on the overall stability and structural design of the bidirectional gantry crane. By using the transfer trolley of this utility model in conjunction with the unidirectional gantry crane for the relocation of the gate leaves of the stacked beam gate, not only is the problem of limited operating space solved, but the amount of civil engineering work is also significantly reduced, greatly increasing the safety and timeliness of the relocation of the gate leaves of the stacked beam gate, and the effect of saving project investment is significant. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall planar layout of the present invention (the attached diagram shows a double-hole gate, with the right water inlet hole in cross-section, and the gantry crane track corresponding to the top of the right water inlet hole is not shown).
[0015] Figure 2 for Figure 1 A magnified view of the left-hand area;
[0016] Figure 3This is a schematic diagram of the elevation layout of the transfer trolley in this utility model (the stacked beam gate leaf has been fixed).
[0017] Figure 4 This is a schematic diagram of the planar layout of the transfer trolley in this utility model (excluding the gate leaf of the stacked beam gate).
[0018] The following are marked in the diagram: 1. Water inlet hole; 2. Stacked beam gate storage area; 3. Gantry crane track; 4. One-way gantry crane; 5. Trolley track; 6. Transfer trolley; 7. Stacked beam gate leaf; 8. Storage platform; 9. Limit screw; 10. Limit nut; 11. Limit stop; 12. Trolley stop; 13. Travel limit component; 21. Hydraulic cylinder; 22. Hydraulic pipeline; 23. Hydraulic pump station; 24. Power supply device; 25. Electrical control cabinet; 31. Electric motor; 32. Reducer; 33. Wheel. Detailed Implementation
[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0020] Please see Figures 1 to 4 This utility model includes a water inlet 1, a stacked beam gate storage area 2, a gantry crane track 3, and a one-way gantry crane 4. A stacked beam gate slot is provided on the side wall of the water inlet 1. The gantry crane track 3 is arranged horizontally above the stacked beam gate slot. The one-way gantry crane 4 is installed on the gantry crane track 3 and is equipped with a grab beam. The one-way gantry crane 4, grab beam, and gantry crane track 3 are existing conventional complete sets of equipment. The grab beam is a core lifting device in hydraulic engineering for the gate hoist to perform hooking or unhooking operations with the gate leaf underwater. It is mainly divided into three technical types: mechanical, hydraulic, and pneumatic. This utility model preferably uses a mechanical or hydraulic grab beam. The gantry crane track 3 extends along the width direction of the water inlet 1 (i.e., arranged perpendicular to the water flow direction), so that the one-way gantry crane 4 has a first state located directly above the stacked beam gate slot and a second state located beside the water inlet 1. A trolley track 5, perpendicular to the gantry crane track 3, is arranged beside the water inlet 1. A transfer trolley 6 is mounted on the trolley track 5 and is equipped with a power mechanism to drive it to move back and forth along the trolley track 5. It is understood that the intersection of the gantry crane track 3 and the trolley track 5 must not impede the normal movement of the one-way gantry crane 4 and the transfer trolley 6. A gap is reserved at the intersection for the wheels 33 to pass through; this is common knowledge in the art. Generally, there are two parallel gantry crane tracks 3, and two parallel trolley tracks 5.
[0021] The transfer trolley 6 is equipped with a lifting mechanism and a loading platform for transferring and placing the stacked beam gate leaf 7. The trolley track 5 has a first end located near the gantry crane track 3 and a second end located away from the gantry crane track 3. The stacked beam gate storage area 2 is located at the second end of the trolley track 5, and storage platforms 8 for storing and placing the stacked beam gate leaf 7 are arranged on both sides of the trolley track 5. When the transfer trolley 6 is located at the first end of the trolley track 5, the one-way gantry crane 4 can place the stacked beam gate leaf 7 on the loading platform or lift the stacked beam gate leaf 7 by grabbing the beam. 7. Lifting from the loading platform means that the transfer trolley 6 can be moved to a suitable position below the one-way gantry crane 4, and the lifting stroke of the grab beam is matched with the lifting stroke of the loading platform to meet the normal transfer of the stacked beam gate leaf 7. When the transfer trolley 6 is located at the second end of the trolley track 5, the lifting of the loading platform can lower the stacked beam gate leaf 7 to the storage platform 8 or lift the stacked beam gate leaf 7 from the storage platform 8. That is, the position of the upper plane of the storage platform 8 should be between the highest and lowest points of the stroke of the upper plane of the loading platform. The lifting mechanism in this utility model preferably adopts the structure of hydraulic cylinder 21. The stroke of hydraulic cylinder 21 should not be too large. Under the premise of ensuring lifting capacity, the vertical distance between the position of the upper plane of the storage platform 8 and the highest point of the stroke of the upper plane of the loading platform, and the vertical distance between the position of the upper plane of the storage platform 8 and the lowest point of the stroke of the upper plane of the loading platform should be controlled within 50mm to 100mm. To further improve reliability, the lifting mechanism includes four hydraulic cylinders 21 arranged in a rectangle, corresponding to the four corners of the gate leaf 7 on the bottom surface. It is understood that a necessary safety distance should be maintained between the edge of the gate leaf 7 and the support surface of the hydraulic cylinders 21. The loading platform can use a simple support structure, as long as it meets the required support strength for the gate leaf 7. To simplify the overall structure, the loading platform can be directly composed of support blocks located at the movable ends of the hydraulic cylinders 21. In actual operation, to ensure the synchronization of the lifting of the four hydraulic cylinders 21, improve the stability of the gate leaf 7, and simplify the overall system, it is preferable to integrate the hydraulic pump station 23 into one unit, with the hydraulic cylinders 21 and the hydraulic pump station 23 connected via hydraulic pipes 22. It is understood that the transfer trolley 6 generally also needs to be equipped with a necessary electrical control cabinet 25. The hydraulic pump station 23 and the electrical control cabinet 25 can be arranged in suitable positions on the transfer trolley 6. In a preferred embodiment of this utility model, for ease of operation, the hydraulic pump station 23 and the electrical control cabinet 25 are both arranged at the rear end of the transfer trolley 6 (the end closest to the gantry crane track 3).
[0022] To better ensure the safety of the gate leaf 7 of the stacked beam gate during transportation, in some preferred embodiments, the transport trolley 6 is equipped with limiting screws 9 for fixing and connecting the gate leaf 7. The axis of the limiting screw 9 is vertically arranged, and a limiting nut 10 is provided on the limiting screw 9. The number of limiting screws 9 can be set multiple according to the actual situation. In a preferred embodiment of this utility model, there are four limiting screws 9 arranged in a rectangle, corresponding to the four corner positions of the gate leaf 7 at the bottom. In practice, the limiting screws 9 first pass through the corresponding connecting holes on the gate leaf 7, and then the limiting nuts 10 are fixed and tightened.
[0023] To better ensure the safety of the gate leaf 7 of the stacked beam gate during transportation, in some preferred embodiments, the transport trolley 6 is equipped with limit blocks 11 at both ends of its traveling direction to limit the movement of the gate leaf 7. Figure 3 In the illustrated embodiment, the transport trolley 6 travels in a left-right direction, and only the right-end limiting block 11 is shown. The limiting block 11 can generally be a square block structure, i.e., a square post made of wood. In some other preferred embodiments, the limiting screw 9, the limiting nut 10, and the limiting block 11 can be combined.
[0024] To better ensure the safety of the transfer trolley 6 during operation, in some other preferred embodiments, the first and second ends of the trolley track 5 are respectively equipped with trolley stops 12 that limit the movement of the transfer trolley 6, and the transfer trolley 6 is provided with a travel limiter 13 that cooperates with the trolley stops 12.
[0025] To better ensure the safety of the gate leaf 7 of the stacked beam gate during storage, the storage platform 8 is equipped with a limiting protrusion or a limiting groove that positions and limits the gate leaf 7. The specific structural form used, whether a limiting protrusion or a limiting groove, can be determined by considering the specific structure of the gate leaf 7. For example, if the structure corresponding to the gate leaf 7 is a locking hole, the corresponding structure on the storage platform 8 is generally designed as a limiting protrusion, thus eliminating the need for an additional latch.
[0026] The power mechanism of the transfer trolley 6 can be implemented in various ways, as long as it can travel normally on the trolley track 5. In a preferred embodiment of this utility model, the power mechanism of the transfer trolley 6 includes a motor 31, a reducer 32, and wheels 33. The output end of the motor 31 is connected to the input end of the wheels 33 through the reducer 32. In a more specific embodiment, based on the size and weight of each independent beam segment of the stacked beam gate, each transfer trolley 6 is equipped with four sets of wheels 33. The wheel diameter of each wheel is preferably 500mm. Based on the operating frequency and working conditions of the transfer trolley 6, the initial working level is selected as M3, the operating speed is 1.21~12.1m / min, the motor 31 is preferably BX90S4 IP55 F, the power is 1.1kW, the speed is 1425r / min, and the reducer 32 is preferably 303R4-185-FZ-P90-B0 with a transmission ratio i=185. The electric motor 31 is operated by the electrical control cabinet 25, and the entire transfer trolley 6 is powered by the power supply device 24.
[0027] In this invention, the opening and closing of the gate leaf 7 of the stacked beam gate (i.e., its lifting and lowering within the gate slot) and its transfer along the orifice direction (i.e., its transfer along the length of the gantry crane track 3) are both operated by the unidirectional gantry crane 4. When it reaches the top of the transfer trolley 6, the gate leaf 7 is placed on the loading platform of the transfer trolley 6. The control cabinet 25 then uses wheels 33 to drive the transfer trolley 6 to the designated stacked beam gate storage area 2. This invention is mainly applicable when the stacked beam gate storage area 2 is located on the left and right sides of the gate slot, making it easier to move the gate leaf 7 vertically along the gantry crane track 3, ensuring centralized storage of the gate leaf 7.
[0028] To ensure the safety and stability of the gate leaf 7 during loading and unloading, the descent speed of the gate leaf 7 must be strictly controlled when the one-way gantry crane 4 is operating to lower it. The speed should be adjusted in real time according to the position of the locking hole of the gate leaf 7. At the same time, to ensure the uniformity of the force on the hydraulic cylinder 21, the gate leaf 7 should be kept as horizontal as possible when it contacts the loading platform on the transfer trolley 6. After the loading is completed, check the contact force of each set of hydraulic cylinders 21. Only when there is no shaking, tilting, pressure loss or instability can the grab lock of the one-way gantry crane 4 be released. Before the transfer trolley 6 starts the transfer, the limit screw 9 and limit nut 10 of each set of gate leaf 7 should be firmly and reliably secured. After the transfer trolley 6 moves to the designated storage platform 8 in the stacked beam gate storage area 2, the position of the transfer trolley 6 is checked to ensure that the locking hole of the stacked beam gate leaf 7 is aligned with the locking device (limiting protrusion or limiting groove) of the storage platform 8. The hydraulic pump station 23 is operated slowly. After the stacked beam gate leaf 7 is fully in place, the transfer trolley 6 is withdrawn to the intersection of the gantry crane track 3 and the trolley track 5. The above operation is repeated until all stacked beam gate leaves 7 have been transferred.
[0029] When it is necessary to install the gate leaf 7 of the stacked beam gate into the gate slot of the water inlet 1, the lifting mechanism is used to lower the loading platform to a suitable height in advance (below the support surface of the storage platform 8). The transfer trolley 6 is then operated to the area where the storage platform 8 is located (i.e., the second end of the trolley track 5). The lifting mechanism is then activated to lift the loading platform to connect the gate leaf 7 of the stacked beam gate. After the gate leaf 7 of the stacked beam gate is fixed, the gate leaf 7 of the stacked beam gate is transported to the designated location below the one-way gantry crane 4 (i.e., the first end of the trolley track 5) using the transfer trolley 6. At this time, the one-way gantry crane 4 is used to hoist the gate leaf 7 of the stacked beam gate and place it into the gate slot of the stacked beam gate. The above operation is repeated until all the gate leaves of the stacked beam gate are installed.
Claims
1. A transfer device for the gate leaf of a stacked beam gate, comprising a water inlet (1), a stacked beam gate storage area (2), a gantry crane track (3), and a one-way gantry crane (4), wherein a stacked beam gate slot is provided on the side wall of the water inlet (1), the gantry crane track (3) is arranged horizontally above the stacked beam gate slot, the one-way gantry crane (4) is installed on the gantry crane track (3), the one-way gantry crane (4) is equipped with a grab beam, and the gantry crane track (3) extends along the width direction of the water inlet (1) so that the one-way gantry crane (4) has a first state located directly above the stacked beam gate slot and a second state located in the area beside the water inlet (1), characterized in that: A trolley track (5) perpendicular to the gantry crane track (3) is arranged in the side area of the water inlet (1). A transfer trolley (6) is installed on the trolley track (5). The transfer trolley (6) is equipped with a power mechanism to drive it to move back and forth along the trolley track (5). A loading platform is set on the transfer trolley (6) through a lifting mechanism. The loading platform is used to transfer and place the stacked beam gate leaf (7). The trolley track (5) has a first end set close to the gantry crane track (3) and a second end set away from the gantry crane track (3). The stacked beam gate storage area (2) is set at the second end of the trolley track (5). Storage area (2) has storage platforms (8) arranged on both sides of the trolley track (5) for storing and placing stacked beam gate leaf (7); when the transfer trolley (6) is located at the first end of the trolley track (5), the one-way gantry crane (4) can place the stacked beam gate leaf (7) on the loading platform or lift the stacked beam gate leaf (7) from the loading platform by grabbing the beam; when the transfer trolley (6) is located at the second end of the trolley track (5), the stacked beam gate leaf (7) can be lowered and placed on the storage platform (8) or lifted from the storage platform (8) by raising and lowering the loading platform.
2. The transfer device for the gate leaf of a stacked beam gate as described in claim 1, characterized in that: The lifting mechanism includes four hydraulic cylinders (21) arranged in a rectangle, and the loading platform is composed of support blocks located at the moving end of the hydraulic cylinders (21).
3. The transfer device for the gate leaf of a stacked beam gate as described in claim 1, characterized in that: The transfer trolley (6) is equipped with a limiting screw (9) for fixing and connecting the gate leaf (7) of the stacked beam gate. The axis of the limiting screw (9) is set vertically, and a limiting nut (10) is provided on the limiting screw (9).
4. The transfer device for the gate leaf of a stacked beam gate as described in claim 1, characterized in that: The transfer trolley (6) is equipped with limit blocks (11) at both ends of its travel direction, which limit the gate leaf (7) of the stacked beam gate.
5. The transfer device for the gate leaf of a stacked beam gate as described in claim 1, characterized in that: The first and second ends of the trolley track (5) are respectively equipped with trolley stops (12) that limit the movement of the transfer trolley (6). The transfer trolley (6) is equipped with a travel limiter (13) that cooperates with the trolley stops (12).
6. The transfer device for the gate leaf of a stacked beam gate as described in claim 1, characterized in that: The storage platform (8) is provided with a limiting protrusion or a limiting groove that plays a positioning and limiting role on the gate leaf (7) of the stacked beam gate.
7. The transfer device for the gate leaf of a stacked beam gate as described in any one of claims 1 to 6, characterized in that: The power mechanism of the transfer trolley (6) includes an electric motor (31), a reducer (32) and wheels (33). The output end of the electric motor (31) is connected to the input end of the wheels (33) through the reducer (32).