Gate hoisting equipment and hoisting method

Abstract

The invention relates to gate lifting equipment and a lifting method. The gate lifting equipment comprises a portal; the first lifting mechanism is mounted on the door frame; the first lifting mechanism comprises a first lifting rope and a first driving part; the second lifting mechanism is connected with the first lifting rope; the second lifting mechanism comprises a second lifting rope and a second driving part; the connecting assembly comprises a grabbing beam and a connecting rod, the grabbing beam is connected with the second lifting rope and can move downwards along with the second lifting rope to be connected with the connecting rod, and the lower end of the connecting rod is connected with the gate; the locking beam assembly can move to a first preset position or a second preset position, and when the locking beam assembly is located at the first preset position, the locking beam assembly can abut against the connecting rod so as to limit downward movement of the connecting rod and the gate; when the locking beam assembly is located at the second preset position, the second lifting mechanism can be fixed, and the gate lifting device has the advantages that the requirement for the gate lifting height is met, and gate lifting operation is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy and hydropower, and in particular to a gate lifting device and a lifting method. Background Art

[0002] Hydraulic steel gates play a key role in hydraulic structures. Due to their heavy weight, they typically require a crane to lift, transfer, and control their opening and closing during maintenance or opening and closing. Such cranes typically include a gantry crane system, a wire rope, and a connecting structure. One end of the wire rope is connected to the gantry crane system, and the other end is connected to the connecting structure. The gantry crane system provides power to extend or reel in the wire rope, which is used to connect to the gate. When the gantry crane system extends the wire rope, it drives the connecting structure and the gate downward in sync. When the gantry crane system reels the wire rope, it drives the connecting structure and the gate upward in sync, controlling the gate's opening and closing, or enabling the gate to be moved between an underwater location and a maintenance position.

[0003] However, for some medium and large hydropower stations, during the actual maintenance of the gates, due to the limitation of the crane's lifting height, the existing cranes are often unable to fully lift the gates to the maintenance platform. In order to solve this problem, some solutions have been proposed, such as: 1. Based on the original crane, the lifting height is increased by disassembling and assembling multi-section tie rods (i.e., adding multi-section tie rods between the connecting structure and the gate) to achieve the lifting of the gate to the maintenance platform.

[0004] Second, the original crane was modified by replacing longer wire ropes so that the crane had sufficient lifting height to meet the gate lifting requirements.

[0005] The former requires lifting and assembly of the tie rods, which not only prolongs the construction period, affects gate maintenance efficiency, but also increases construction difficulty and risk. The latter inevitably involves multiple structural modifications, such as increasing the drum diameter, drum length, or changing the drum winding method. The overall safety of the modified structure must also be considered, increasing the cost and time required for the modification. Furthermore, some cranes may be restricted by environmental factors, making the modification difficult to implement. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a gate lifting device.

[0007] To achieve the above object, the present invention adopts the following technical solutions: A gate lifting device is used for lifting a gate, comprising: Door frame; A first lifting mechanism is mounted on the gantry; the first lifting mechanism includes a first lifting rope and a first driving portion for driving the first lifting rope to reel or extend; a second lifting mechanism connected to the first lifting rope; the second lifting mechanism includes a second lifting rope and a second driving unit for driving the second lifting rope to reel or extend; a connecting assembly comprising a grab beam and a connecting rod, wherein the grab beam is connected to the second lifting rope and can be moved downward along with the second lifting rope to connect with the connecting rod, and the lower end of the connecting rod is connected to the gate; A locking beam assembly, wherein the locking beam assembly can be moved to a first preset position or a second preset position, and when the locking beam assembly is in the first preset position, it can abut against the connecting rod to limit the downward movement of the connecting rod and the gate; when the locking beam assembly is in the second preset position, it can fix the second lifting mechanism.

[0008] Preferably, the connecting rod comprises a rod body and a saddle seat; In the first preset position, the lower end surface of the saddle seat abuts against the upper end surface of the locking beam assembly.

[0009] Preferably, the second lifting mechanism further comprises a frame for mounting the second driving part; The gate lifting device further comprises a plurality of lifting lug assemblies for connecting the frame and the first lifting rope; The plurality of lifting lug assemblies are all arranged on the frame and are symmetrically arranged about the second driving part.

[0010] Preferably, two of the second hanging ropes and two of the second driving parts are provided, and are arranged in one-to-one correspondence; The two second suspension ropes and the two second driving parts are symmetrically arranged about the central axis of the connecting assembly; The second driving unit includes a motor, a reducer and a reel; The output shaft of the motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the reel to drive the reel to rotate; One end of the second suspension rope is wound around the drum.

[0011] Preferably, a first connecting seat is provided at the lower end of the second suspension rope; The upper end of the grab beam is provided with a second connecting seat; The first connecting seat can be inserted into the second connecting seat and the connection is limited by a detachable limiting shaft.

[0012] Preferably, the second lifting mechanism further comprises a frame for mounting the second driving part; The gate lifting device further comprises a plurality of locking assemblies for fixing the frame and the locking beam assembly; The locking assembly includes a locking block, a locking seat and a locking shaft; One of the locking block and the locking seat is provided on the locking beam assembly, and the other is provided on the frame, and the locking seat is formed with a locking groove for plugging and cooperating with the locking block; When the locking block is inserted into the locking seat, the locking shaft can pass through the locking block and the locking holes provided on the locking seat.

[0013] Preferably, the locking beam assembly comprises a first cross beam and a second cross beam; The first crossbeam and the second crossbeam are capable of moving toward or away from each other, and a distance between the first crossbeam and the second crossbeam in the first preset position is smaller than a distance between the first crossbeam and the second crossbeam in the second preset position.

[0014] Preferably, the door frame is slidably mounted relative to the ground.

[0015] A lifting method based on the above-mentioned gate lifting device comprises the following steps: Using the first lifting mechanism to drive the second lifting mechanism, the connecting assembly and the gate to move upward until the connecting rod is separated from the locking beam assembly and stops; moving the locking beam assembly from a first preset position to a second preset position; Using the first lifting mechanism to drive the second lifting mechanism, the connecting assembly and the locking beam assembly to move downward until the grab beam moves into the gate slot of the gate and stops; fixing the second lifting mechanism and the locking beam assembly; The second lifting mechanism is used to drive the connecting assembly and the gate to move upward or downward.

[0016] Preferably, the step of moving the locking beam assembly from the first preset position to the second preset position specifically comprises the following steps: After the saddle seat of the connecting rod moves to be separated from the locking beam assembly, the first crossbeam and the second crossbeam of the locking beam assembly are pushed to move away from each other.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a gate lifting device, which can realize relay lifting of the gate through the cooperation of the first lifting mechanism and the second lifting mechanism, so that the gate can be lifted from underwater to a preset height for transfer or maintenance, and avoids the problems of the entire lifting mechanism being too large due to the long lifting rope, long modification costs, modification cycles, and low safety. At the same time, the locking beam assembly can be used to fix the second lifting mechanism in the second preset position, so that the second lifting mechanism can be relatively fixed during operation, ensuring the stability of the second lifting mechanism. In addition, the locking beam assembly can abut against the connecting rod when it is in the first preset position, thereby providing an additional support point for the connecting rod, effectively ensuring the stability of the connecting rod, and avoiding bending deformation of the connecting rod. Correspondingly, the present invention provides a lifting method based on the above-mentioned gate lifting device, which can not only meet the requirements of the gate lifting height, but also facilitate the lifting operation of the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a structural schematic diagram of the gate lifting equipment provided by the present invention.

[0020] Figure 2 for Figure 1 Schematic diagram of the D1 position in the figure.

[0021] Figure 3 for Figure 1 A schematic diagram of one of the states of use of the gate lifting equipment is provided.

[0022] Figure 4 for Figure 3 Schematic diagram of the enlarged D2 position.

[0023] Figure 5 It is a structural schematic diagram of the second lifting mechanism.

[0024] Description of reference numerals: 100. Gate; 1. Door frame; 2. First lifting mechanism; 21. First lifting rope; 22. First driving unit; 3. Second lifting mechanism; 31. Second lifting rope; 311. First connecting seat; 32. Second driving unit; 321. Motor; 322. Reducer; 323. Reel; 33. Frame; 34. Removable limit shaft; 4. Connecting assembly; 41. Grabbing beam; 411. Second connecting seat; 42. Connecting rod; 421. Rod body; 422. Saddle seat; 5. Locking beam assembly; 51. First crossbeam; 52. Second crossbeam; 6. Lifting ear assembly; 7. Locking assembly; 71. Locking block; 72. Locking seat; 73. Locking shaft. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] See also Figures 1 to 5 , an embodiment of the present invention provides a gate lifting device for lifting the gate 100.

[0029] Specifically, the gate lifting device comprises a gate frame 1, a first lifting mechanism 2, a second lifting mechanism 3, a connecting assembly 4 and a locking beam assembly 5, wherein the first lifting mechanism 2 is installed on the gate frame 1; the first lifting mechanism 2 comprises a first lifting rope 21 and a first driving part 22 for driving the first lifting rope 21 to be wound or elongated; the second lifting mechanism 3 is connected with the first lifting rope 21; the second lifting mechanism 3 comprises a second lifting rope 31 and a second driving part 32 for driving the second lifting rope 31 to be wound or elongated; the connecting assembly 4 comprises a grabbing beam 41 and a connecting rod 42, the grabbing beam 41 is connected with the second lifting rope 31 and can be connected with the connecting rod 42 by moving downward with the second lifting rope 31, and the lower end of the connecting rod 42 is connected with the gate 100; the locking beam assembly 5 can be moved to a first preset position or a second preset position, and when the locking beam assembly 5 is located at the first preset position, the locking beam assembly 5 can abut against the connecting rod 42 to limit the downward movement of the connecting rod 42 and the gate 100; when the locking beam assembly 5 is located at the second preset position, the locking beam assembly 5 can fix the second lifting mechanism 3.

[0030] It can be understood that, in the above scheme, through the cooperation of the first lifting mechanism 2 and the second lifting mechanism 3, the relay lifting of the gate 100 can be realized, so that the gate 100 can be lifted from underwater to a preset height to realize transfer or maintenance, and the problems of large size, high modification cost, long modification period and low safety caused by the overlong lifting rope of the whole lifting mechanism are avoided. At the same time, the locking beam assembly 5 can be used to fix the second lifting mechanism 3 when it is at the second preset position, so that the second lifting mechanism 3 can be relatively fixed when it is running, thereby ensuring the stability of the second lifting mechanism 3. In addition, the locking beam assembly 5 can abut against the connecting rod 42 when it is at the first preset position, thereby providing an additional support point for the connecting rod 42, effectively ensuring the stability of the connecting rod 42 and avoiding the bending deformation of the connecting rod 42.

[0031] Referring to Figure 1 and Figure 2 , the connecting rod 42 comprises a rod body 421 and a saddle 422; when at the first preset position, the lower end surface of the saddle 422 abuts against the upper end surface of the locking beam assembly 5, thereby providing an additional support point for the connecting rod 42 when the connecting rod 42 is idle, or the gate 100 is idle, or the connecting rod 42 and the gate 100 are at a certain position, effectively ensuring the stability of the connecting rod 42 and avoiding the bending deformation of the connecting rod 42.

[0032] Referring to Figure 1 , Figure 3 and Figure 4 , when the locking beam assembly 5 is at the second preset position, the upper end of the locking beam assembly 5 can be fixedly connected with the second lifting mechanism 3, thereby increasing the stability of the second lifting mechanism 3.

[0033] Specifically, the second lifting mechanism 3 includes a frame 33 for mounting the second driving part 32 ; the gate lifting device also includes a plurality of locking assemblies 7 for fixing the frame 33 and the locking beam assembly 5 .

[0034] When the locking block 71 is inserted into the locking seat 72, the locking shaft 73 can pass through the locking holes formed on the locking block 71 and the locking seat 72 to achieve relative fixation of the locking block 71 and the locking seat 72, that is, to achieve relative fixation of the frame 33 and the locking beam assembly 5.

[0035] Of course, in other embodiments, the locking block 71 may be disposed on the locking beam assembly 5 , and the locking seat 72 may be disposed on the frame 33 .

[0036] It should be understood that in order to prevent the setting of the locking assembly 7 from affecting the abutment between the saddle seat 422 and the locking beam assembly 5, the locking assembly 7 can be staggered with the saddle seat 422, that is, the projections of the two on the horizontal plane do not overlap.

[0037] Furthermore, the locking beam assembly 5 includes a first beam 51 and a second beam 52; the first beam 51 and the second beam 52 can move toward each other or away from each other, and the distance between the first beam 51 and the second beam 52 in the first preset position is smaller than the distance between the first beam 51 and the second beam 52 in the second preset position.

[0038] See also Figure 1 and Figure 5 The gate lifting equipment also includes a plurality of lifting ear assemblies 6 for connecting the frame 33 and the first lifting rope 21; the plurality of lifting ear assemblies 6 are all arranged on the frame 33 and are symmetrically arranged about the second driving part 32.

[0039] Furthermore, two second hanging ropes 31 and two second driving parts 32 are provided, and are arranged one to one; the two second hanging ropes 31 and the two second driving parts 32 are connected about the central axis of the component 4 (see Figure 5 Middle L) Symmetrical setup.

[0040] Furthermore, the second driving unit 32 includes a motor 321, a reducer 322 and a reel 323; wherein, the output shaft of the motor 321 is connected to the input shaft of the reducer 322, and the output shaft of the reducer 322 is connected to the reel 323 to drive the reel 323 to rotate; one end of the second suspension rope 31 is wound around the reel 323.

[0041] See also Figure 1 and Figure 5The lower end of the second lifting rope 31 is provided with a first connecting seat 311; the upper end of the grab beam 41 is provided with a second connecting seat 411; the first connecting seat 311 can be inserted into the second connecting seat 411 and is limitedly connected by a detachable limiting shaft 34.

[0042] In order to facilitate the transfer of the gate 100, the door frame 1 is installed to slide relative to the ground.

[0043] An embodiment of the present invention further provides a lifting method based on the above-mentioned gate lifting device, comprising the following steps: The first lifting mechanism 2 is used to drive the second lifting mechanism 3, the connecting assembly 4 and the gate 100 to move upward until the connecting rod 42 is separated from the locking beam assembly 5 and stops; Moving the locking beam assembly 5 from the first preset position to the second preset position; The first lifting mechanism 2 is used to drive the second lifting mechanism 3, the connecting assembly 4 and the locking beam assembly 5 to move downward until the grab beam 41 moves into the door slot of the gate 100 and stops; Fix the second lifting mechanism 3 and the locking beam assembly 5; The second lifting mechanism 3 is used to drive the connecting assembly 4 and the gate 100 to move up or down.

[0044] Specifically, the step of moving the locking beam assembly 5 from the first preset position to the second preset position includes the following steps: After the saddle 422 of the connecting rod 42 moves upward and disengages from the locking beam assembly 5 , the first crossbeam 51 and the second crossbeam 52 of the locking beam assembly 5 are pushed to move away from each other.

[0045] It is worth noting that there are many specific operating methods for the above lifting methods according to different working conditions, as follows: Operating Condition 1: The gate 100 is initially underwater and requires the gate lifting apparatus provided by the present invention to control its opening and closing. At this point, the first lifting mechanism 2 is closed, the locking beam assembly 5 is in the second preset position, and the second lifting mechanism 3 is locked and connected to the locking beam assembly 5. The second driving portion 32 of the second lifting mechanism 3 drives the second lifting rope 31 to reel or extend, thereby achieving upward or downward movement of the gate 100 and thus controlling its opening and closing.

[0046] Operating Condition 2: A connecting rod 42 is connected to the upper end of the gate 100. The saddle 422 of the connecting rod 42 abuts against the locking beam assembly 5 (in the first preset position). The gate lifting device provided by the present invention is required to control the transfer of the gate 100 to a preset position (e.g., a workstation to be used). In this case, the first lifting mechanism 2 is first activated, causing the first lifting rope 21 of the first lifting mechanism 2 to drive the second lifting mechanism 3 and the grab beam 41 of the connecting assembly 4 downward until the lower end of the grab beam 41 connects to the upper end of the connecting rod 42. The first lifting rope 21 then drives the second lifting mechanism 3, the connecting assembly 4, and the gate 100 upward until the saddle 422 of the connecting rod 42 separates from the locking beam assembly 5. The first crossbeam 51 and second crossbeam 52 of the locking beam assembly 5 are then pushed away from each other, moving the locking beam assembly 5 from the first preset position to the second preset position. Afterwards, the first lifting mechanism 2 drives the second lifting mechanism 3, the connecting assembly 4, and the locking beam assembly 5 downward until the grab beam 41 moves into the door slot of the gate 100 and stops. The second lifting mechanism 3 and the locking beam assembly 5 are then secured. Finally, the second lifting mechanism 3 drives the connecting assembly 4 and the gate 100 downward to the predetermined workstation.

[0047] Working condition three: When it is necessary to move the gate 100 of the preset workstation (i.e., the gate 100 in working condition two) to the preset maintenance position, at this time, the second lifting mechanism 3 can be used to lift the gate 100, and then the second lifting mechanism 3 and the locking beam assembly 5 can be unlocked, and then the second lifting mechanism 3, the connecting assembly 4 and the gate 100 are driven up to the preset height by the first lifting rope 21, and finally, the door frame 1 is moved to move the gate 100 to the preset maintenance position.

[0048] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A gate lifting device for lifting a gate (100), characterized in that: include: Door frame (1); A first lifting mechanism (2) is mounted on the door frame (1); the first lifting mechanism (2) comprises a first lifting rope (21) and a first driving unit (22) for driving the first lifting rope (21) to reel or extend; a second lifting mechanism (3) connected to the first lifting rope (21); the second lifting mechanism (3) comprises a second lifting rope (31) and a second driving unit (32) for driving the second lifting rope (31) to reel or extend; A connecting assembly (4) comprising a grab beam (41) and a connecting rod (42), wherein the grab beam (41) is connected to the second lifting rope (31) and can be moved downward along with the second lifting rope (31) to be connected to the connecting rod (42), and the lower end of the connecting rod (42) is connected to the gate (100); A locking beam assembly (5), wherein the locking beam assembly (5) is capable of moving to a first preset position or a second preset position, and when the locking beam assembly (5) is located at the first preset position, it is capable of abutting against the connecting rod (42) to limit the downward movement of the connecting rod (42) and the gate (100); and when the locking beam assembly (5) is located at the second preset position, it is capable of fixing the second lifting mechanism (3).

2. A gate lifting device according to claim 1, characterized in that: The connecting rod (42) includes a rod body (421) and a saddle seat (422); In the first preset position, the lower end surface of the saddle seat (422) abuts against the upper end surface of the locking beam assembly (5).

3. The gate lifting equipment according to claim 1, characterized in that: The second lifting mechanism (3) further comprises a frame (33) for mounting the second driving part (32); The gate lifting device further comprises a plurality of lifting lug assemblies (6) for connecting the frame (33) and the first lifting rope (21); The plurality of lifting lug assemblies (6) are all arranged on the frame (33) and are symmetrically arranged about the second driving part (32).

4. A gate lifting device according to claim 3, characterized in that: There are two of each of the second hanging rope (31) and the second driving part (32), and they are arranged in a one-to-one correspondence; The two second suspension ropes (31) and the two second driving parts (32) are symmetrically arranged about the central axis of the connecting assembly (4); The second driving unit (32) includes a motor (321), a reducer (322) and a reel (323); The output shaft of the motor (321) is connected to the input shaft of the reducer (322), and the output shaft of the reducer (322) is connected to the reel (323) to drive the reel (323) to rotate; One end of the second suspension rope (31) is wound around the reel (323).

5. A gate lifting device according to claim 1 or 4, characterized in that: A first connecting seat (311) is provided at the lower end of the second suspension rope (31); A second connecting seat (411) is provided at the upper end of the grab beam (41); The first connecting seat (311) can be inserted into the second connecting seat (411) and is connected in a limited manner via a detachable limiting shaft (34).

6. The gate lifting equipment according to claim 1, characterized in that: The second lifting mechanism (3) further comprises a frame (33) for mounting the second driving part (32); The gate lifting device further includes a plurality of locking assemblies (7) for fixing the frame (33) and the locking beam assembly (5); The locking assembly (7) comprises a locking block (71), a locking seat (72) and a locking shaft (73); One of the locking block (71) and the locking seat (72) is arranged on the locking beam assembly (5), and the other is arranged on the frame (33), and the locking seat (72) is formed with a locking groove that is plugged into and matched with the locking block (71); The locking shaft (73) can penetrate the locking holes provided on the locking block (71) and the locking seat (72) when the locking block (71) is inserted into the locking seat (72).

7. The gate lifting equipment according to claim 1, characterized in that: The locking beam assembly (5) comprises a first crossbeam (51) and a second crossbeam (52); The first crossbeam (51) and the second crossbeam (52) are capable of moving toward or away from each other, and the distance between the first crossbeam (51) and the second crossbeam (52) in the first preset position is smaller than the distance between the first crossbeam (51) and the second crossbeam (52) in the second preset position.

8. The gate lifting equipment according to claim 1, characterized in that: The door frame (1) is slidably mounted relative to the ground.

9. A lifting method based on the gate lifting device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Utilizing the first lifting mechanism (2) to drive the second lifting mechanism (3), the connecting assembly (4) and the gate (100) to move upward until the connecting rod (42) is separated from the locking beam assembly (5) and the gate (100) stops; Moving the locking beam assembly (5) from a first preset position to a second preset position; Using the first lifting mechanism (2) to drive the second lifting mechanism (3), the connecting assembly (4) and the locking beam assembly (5) to move downward until the grab beam (41) moves into the door slot of the gate (100) and stops; Fixing the second lifting mechanism (3) and the locking beam assembly (5); The second lifting mechanism (3) is used to drive the connecting assembly (4) and the gate (100) to move upward or downward.

10. The lifting method according to claim 9, characterized in that: The step of moving the locking beam assembly (5) from the first preset position to the second preset position specifically comprises the following steps: After the saddle seat (422) of the connecting rod (42) moves up and away from the locking beam assembly (5), the first crossbeam (51) and the second crossbeam (52) of the locking beam assembly (5) are pushed to move in opposite directions.

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