Lifting equipment for dam gate

Abstract

The utility model relates to the field of hoisting equipment, and discloses dam gate hoisting equipment which comprises two supporting mechanisms and a fixing mechanism, pulley blocks are arranged at the lower ends of the two sides of the front face of the fixing mechanism, lifting hooks are arranged at the lower ends of the two pulley blocks, and a gradienter is arranged in the middle of the lower end of the fixing mechanism. According to the lifting equipment, through the double design of hydraulic driving and sliding adjustment, flexible adjustment of the lifting height and the span is achieved, in the supporting mechanism, a hydraulic cylinder can drive a fixing column to slide up and down, lifting adjustment of the lifting height is rapidly completed, and the lifting requirements of dam gates of different heights are easily met; the movable plate can slide in the fixed plate, the position is locked through the fixing bolts, the span between the two pulley blocks is flexibly changed, hoisting of gates with different widths can be adapted without replacing parts, the universality and construction efficiency of equipment are remarkably improved, and time waste caused by the equipment adaptation problem is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment, and in particular to a hoisting device for dam gates. Background Technology

[0002] Dam valves are devices installed on dam pipelines or flood discharge channels to control water flow, water level, and flow direction. Due to their large size and heavy weight, dam valves require hoisting equipment for installation and maintenance. Hoisting equipment can safely and efficiently lift valves to designated locations, ensuring valve installation accuracy and dam operation safety. It is a key tool for connecting valve operations in dam construction and maintenance.

[0003] Existing hoisting equipment has a simple structural design and cannot handle the hoisting of gates of different sizes and weights. It often requires multiple specialized devices, which increases the cost of equipment procurement and maintenance and wastes resources. Some devices lack effective level monitoring and anti-balance mechanisms, and are prone to tilting or even collapsing in complex terrain or when the hoisting force is uneven, threatening the safety of operators and the stability of the equipment. Therefore, those skilled in the art provide a hoisting device for dam gates to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a hoisting device for dam gates. This device, through a dual design of hydraulic drive and sliding adjustment, enables flexible adjustment of hoisting height and span, and can improve hoisting efficiency while ensuring all-round operational safety.

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

[0006] A hoisting device for a dam gate includes two support mechanisms and a fixing mechanism. The fixing mechanism is provided with pulley blocks at the lower ends of both sides of the front, and hooks are provided at the lower ends of both pulley blocks. A level is provided at the middle position of the lower end of the fixing mechanism, and drive motors are fixedly provided at the lower ends of both sides of the rear of the fixing mechanism.

[0007] Both of the support mechanisms include a support column and a fixed column. A hydraulic cylinder is fixedly installed inside each of the two support columns. The fixing mechanism includes a fixed plate, multiple fixing bolts, and two movable plates. Multiple fixing holes are opened on both sides of the upper end of each of the two movable plates. A first connecting plate is fixedly installed on one side of each of the two movable plates, and a second connecting plate is fixedly installed on one side of each of the two first connecting plates.

[0008] Furthermore, a base is fixedly installed at the lower end of each of the two support columns.

[0009] Furthermore, each of the two hydraulic cylinder output ends is fixedly provided with a connecting column, and the upper end of each of the two connecting columns is fixedly connected to a fixed column.

[0010] Furthermore, both of the fixed columns are slidably disposed inside the support column, and the upper ends of both fixed columns are fixedly connected to the second connecting plate.

[0011] Furthermore, both of the movable plates are slidably disposed inside the fixed plate.

[0012] Furthermore, both movable plates are fixedly connected to the fixing holes and the fixing plate by fixing bolts.

[0013] Furthermore, the output shafts of the two drive motors are connected to a pulley block via a coupling.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model proposes a hoisting device for dam gates. This hoisting device achieves flexible adjustment of hoisting height and span through a dual design of hydraulic drive and sliding adjustment. In the support mechanism, the hydraulic cylinder can drive the fixed column to slide up and down, quickly completing the lifting height adjustment and easily adapting to the hoisting needs of dam gates of different heights. In the fixing mechanism, the movable plate can slide within the fixed plate and lock its position through fixing bolts, flexibly changing the span between the two pulley blocks. It can adapt to the hoisting of gates of different widths without replacing parts, significantly improving the versatility of the equipment and construction efficiency, and reducing time waste caused by equipment compatibility issues.

[0016] 2. The present invention proposes a hoisting device for a dam gate. The device adopts a dual-drive motor-driven pulley block, which is powerful and runs smoothly, and can easily achieve uniform speed lifting and lowering of the gate. In the support mechanism, the base is stable, and the rigid connection between the hydraulic cylinder and the fixed column provides solid and reliable support for the entire hoisting process, effectively resisting the shaking caused by external interference. At the same time, the level monitors the balance of the equipment in real time. Once abnormal tilting or uneven force is detected, the automatic shutdown mechanism is triggered to avoid the safety hazards of wire rope breakage and gate falling due to equipment imbalance. While improving the hoisting operation efficiency, it also ensures the safety of operation in all aspects. Attached Figure Description

[0017] Figure 1 This is an axonometric view of the present invention;

[0018] Figure 2 This is a front view schematic diagram of the present utility model;

[0019] Figure 3 This is a rear view schematic diagram of the present invention;

[0020] Figure 4This is a frontal sectional view of the present invention.

[0021] Legend:

[0022] 1. Support mechanism; 2. Fixing mechanism; 3. Pulley block; 4. Hook; 5. Level; 6. Drive motor; 101. Base; 102. Support column; 103. Hydraulic cylinder; 104. Connecting column; 105. Fixing column; 201. Fixing plate; 202. Fixing bolt; 203. Fixing hole; 204. Moving plate; 205. First connecting plate; 206. Second connecting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1-4 An embodiment of this utility model provides a hoisting device for a dam gate, comprising two support mechanisms 1 and a fixing mechanism 2. The lower ends of both sides of the front of the fixing mechanism 2 are provided with pulley blocks 3, and the lower ends of the two pulley blocks 3 are provided with hooks 4. A level 5 is provided at the middle position of the lower end of the fixing mechanism 2. Drive motors 6 are fixedly provided at the lower ends of both sides of the rear of the fixing mechanism 2. The output shafts of the two drive motors 6 are connected to the pulley blocks 3 through couplings.

[0025] Specifically, the support mechanism 1 provides stable support and height adjustment for the entire hoisting equipment, the fixing mechanism 2 connects the support mechanism 1 and the pulley block 3 and can adjust the hoisting span, the pulley block 3 works with the hook 4 to lift the gate, the level 5 is used to monitor the level of the equipment in real time, and the drive motor 6 provides power to the pulley block 3. All parts cooperate with each other to ensure the safe and efficient hoisting operation of the dam gate.

[0026] Reference Figure 1 , Figure 4 Both support mechanisms 1 include support columns 102 and fixed columns 105. Hydraulic cylinders 103 are fixedly installed inside both support columns 102. Bases 101 are fixedly installed at the lower ends of both support columns 102. Connecting columns 104 are fixedly installed at the output ends of both hydraulic cylinders 103. The upper ends of both connecting columns 104 are fixedly connected to the fixed columns 105. Both fixed columns 105 are slidably installed inside the support columns 102. The upper ends of both fixed columns 105 are fixedly connected to the second connecting plate 206.

[0027] Specifically, in the support mechanism 1, the base 101 is firmly placed on the ground to provide a stable foundation for the equipment. After the hydraulic cylinder 103 is started, it drives the fixed column 105 to slide up and down in the support column 102 through the connecting column 104, so as to realize the flexible adjustment of the overall height of the hoisting equipment to adapt to the hoisting requirements of dam gates of different heights. The fixed column 105 is connected to the fixed mechanism 2 through the second connecting plate 206 to ensure that the support mechanism 1 and the fixed mechanism 2 are firmly connected.

[0028] Reference Figure 2 , Figure 4 The fixing mechanism 2 includes a fixing plate 201, multiple fixing bolts 202 and two movable plates 204. Multiple fixing holes 203 are provided on both sides of the upper end of the two movable plates 204. A first connecting plate 205 is fixedly provided on one side of each of the two movable plates 204. A second connecting plate 206 is fixedly provided on one side of each of the two first connecting plates 205. The two movable plates 204 are slidably disposed inside the fixing plate 201. The two movable plates 204 are fixedly connected to the fixing holes 203 and the fixing plate 201 by fixing bolts 202.

[0029] Specifically, in the fixed mechanism 2, the fixed plate 201 serves as the main frame, and the movable plate 204 can slide inside it. By adjusting the position of the movable plate 204, the distance between the two pulley groups 3 is changed to accommodate the hoisting of gates of different widths. After the movable plate 204 is adjusted to the appropriate position, the fixing bolts 202 are tightened through the fixing holes 203 to securely fix the movable plate 204 on the fixed plate 201. After the drive motor 6 is started, it drives the pulley group 3 to rotate, thereby raising and lowering the hook 4 and completing the hoisting of the gate.

[0030] Working Principle: During the hoisting operation of the dam gate, the bases 101 of the two support mechanisms 1 are first placed in the predetermined hoisting position. Based on the height of the dam gate, the hydraulic cylinder 103 inside the support column 102 is activated. The output end of the hydraulic cylinder 103 pushes the connecting column 104, causing the fixed column 105 to slide upwards within the support column 102, adjusting the hoisting equipment to a suitable height to ensure the hook 4 can smoothly hook the gate. Next, based on the gate width, the fixing bolts 202 of the fixing mechanism 2 are loosened, and the sliding plate 204 is adjusted within the fixed plate 201 to change the distance between the two pulley groups 3, adapting it to the gate width. After adjustment, the fixing bolts 202 are tightened to fix the sliding plate 204, ensuring structural stability during hoisting. After the hook 4 hooks the dam gate, the drive motor 6 behind the fixing mechanism 2 is activated. The drive motor 6 outputs power to drive the pulley groups. 3. Operation: The hook 4 is pulled by a steel wire rope to lift the gate smoothly. During the lifting process, the hydraulic cylinder 103 can be finely adjusted again according to actual needs to control the lifting height and ensure that the gate is accurately installed in the predetermined position. During the lifting process, the level 5 continuously monitors the level of the equipment. If the equipment tilts due to ground settlement or uneven force, the operator can immediately stop the lifting and control the balance of the equipment by finely adjusting the hydraulic cylinder 103 to ensure that the gate is accurately installed in the predetermined position. After the lifting is completed, the drive motor 6 is reversed to lower the hook 4, loosen the fixing bolts 202, reset the moving plate 204, and retract the hydraulic cylinder 103 to lower the height of the equipment, thus completing the entire lifting process.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hoisting device for a dam gate, comprising two supporting mechanisms (1) and a fixing mechanism (2), characterized in that: The fixing mechanism (2) has pulley blocks (3) on both sides of the lower end of the front, hooks (4) on both sides of the pulley blocks (3), a level (5) on the middle of the lower end of the fixing mechanism (2), and drive motors (6) fixedly installed on both sides of the rear of the fixing mechanism (2). Both of the support mechanisms (1) include a support column (102) and a fixed column (105). A hydraulic cylinder (103) is fixedly installed inside each of the two support columns (102). The fixing mechanism (2) includes a fixed plate (201), multiple fixing bolts (202) and two moving plates (204). Multiple fixing holes (203) are opened on both sides of the upper end of each of the two moving plates (204). A first connecting plate (205) is fixedly installed on one side of each of the two moving plates (204), and a second connecting plate (206) is fixedly installed on one side of each of the two first connecting plates (205).

2. The hoisting equipment for a dam gate according to claim 1, characterized in that: Both of the support columns (102) have a base (101) fixedly installed at their lower ends.

3. The hoisting equipment for a dam gate according to claim 1, characterized in that: Both hydraulic cylinders (103) have a fixed connecting column (104) at their output ends, and the upper ends of both connecting columns (104) are fixedly connected to a fixed column (105).

4. The hoisting equipment for a dam gate according to claim 1, characterized in that: Both of the fixed columns (105) are slidably disposed inside the support column (102), and the upper ends of both fixed columns (105) are fixedly connected to the second connecting plate (206).

5. The hoisting equipment for a dam gate according to claim 1, characterized in that: Both of the movable plates (204) are slidably disposed inside the fixed plate (201).

6. The hoisting equipment for a dam gate according to claim 1, characterized in that: Both movable plates (204) are fixedly connected to the fixing holes (203) and the fixing plate (201) by fixing bolts (202).

7. The hoisting equipment for a dam gate according to claim 1, characterized in that: The output shafts of the two drive motors (6) are connected to the pulley block (3) via a coupling.

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