A linkage operation device and method for gate orifice cover plates of a hydropower station

Abstract

A linkage operation device and method for gate orifice covers in hydropower stations includes a transmission system and a cover system. The transmission system comprises a power receiving device, a transmission mechanism, and transmission connectors. The power receiving device is driven by the transmission mechanism, and the transmission mechanism is driven by the transmission connectors. Multiple transmission connectors are mounted on the transmission mechanism and are connected to the cover plates of the cover system. The cover system comprises multiple cover plates. Under the action of a power source, the power receiving device, transmission mechanism, and transmission connectors drive the multiple cover plates to perform flat or stacked operations. This device, through bevel gear screw transmission and modular cover plate linkage design, significantly improves orifice coverage efficiency and safety, and is suitable for hydropower station gate inspection and maintenance scenarios.

Description

Technical Field

[0001] This invention belongs to the field of safety protection devices for the gate opening of hydropower stations, and specifically relates to a linkage operation device and method for the gate opening cover plate of hydropower stations. Background Technology

[0002] In the operation and maintenance management of hydropower station equipment, the locking beam deployment and retraction, and cover plate opening and closing operations at the gate orifice are common and critical tasks. Especially when using a tie-rod structure for raising and lowering the gate, frequent connection and disconnection of the tie rods in the middle of the orifice is required, posing a significant safety hazard for suspended operations in the middle of the span. Currently, these operations mainly rely on manual operation directly at the orifice, specifically including:

[0003] Manual operation of locking beam deployment / retraction: Operators need to manually deploy and retract the locking beam supporting the gate / pull rod, which is complicated and inefficient.

[0004] Cover plate hoisting and switching: The cover plate is hoisted and switched by a combination of lifting equipment and manual operation, which increases the complexity of the operation and the risk of personnel exposure.

[0005] Furthermore, workers operating near the gate opening face the risk of falling, and traditional operating methods are inefficient and cannot meet the demands of modern hydropower stations for safe, efficient, and automated equipment operation. Therefore, achieving fully automated operation of the locking beam and cover plate in the gate opening area while providing effective safety protection measures has become a pressing technical challenge. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a linkage operation device and method for the gate opening cover plate of a hydropower station. The device uses an external driving device to act on both ends of the locking beam to realize the operation of the locking beam, thereby driving the opening and closing of the cover plate system and realizing the fully automated operation of the opening area. This not only improves the work efficiency, but also provides comprehensive safety protection for personnel at the opening, ensuring the safety of operations in the opening area.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A linkage operation device for the gate opening cover plate of a hydropower station includes a transmission system and a cover plate system. The transmission system includes a power receiving device, a transmission mechanism, and a transmission connecting component. The power receiving device is in transmission cooperation with the transmission mechanism, and the transmission mechanism is in transmission cooperation with the transmission connecting component. Multiple transmission connecting components are installed on the transmission mechanism, and the transmission connecting components are connected to the cover plate of the cover plate system.

[0009] The cover plate system includes multiple cover plates. The power receiving device, transmission mechanism and transmission connecting parts drive the multiple cover plates to lay flat or stack under the action of the power source.

[0010] Preferably, the power receiving device includes a mounting box, a quick connector, a thrust bearing, an input bevel gear, an output bevel gear, and a linkage drive shaft;

[0011] The mounting box contains a rotatable drive shaft with an output bevel gear that meshes with an input bevel gear. The input bevel gear is connected to a quick connector via a rotating shaft, which is mounted on the mounting box via a thrust bearing.

[0012] Preferably, the power receiving device further includes a drive bevel gear, which is coaxially mounted on the linkage transmission shaft;

[0013] The transmission mechanism is used to be installed on both sides of the traveling area of ​​the orifice locking beam; the transmission mechanism includes a supporting track seat, a receiving bevel gear, and a transmission screw;

[0014] It accepts bevel gear meshing with drive bevel gear, and accepts bevel gear coaxial connection with transmission screw; the transmission screw is rotatably mounted on support rail seat.

[0015] Preferably, the transmission connection includes a locking beam connecting screw sleeve, a cover plate connecting screw sleeve, and a cover plate connector;

[0016] The locking beam connecting screw sleeve is threadedly engaged with the transmission screw, and the cover plate connecting screw sleeve is threadedly engaged with the transmission screw. The cover plate connecting screw sleeve is connected to the cover plate connector through the mounting rod, and the cover plate connector is provided with mounting holes.

[0017] Preferably, the cover plate system includes two types: a first cover plate and stacked cover plates, wherein:

[0018] The first cover plate is used to be installed on the side closer to the locking beam, and the superimposed cover plate is used to be installed on the side farther from the locking beam;

[0019] The first cover plate is provided with a mounting hinge, which is used to hinge with the cover plate connector.

[0020] Preferably, the first cover plate has a front support shaft and a rear support shaft on both sides. Supporting rollers are installed on the front support shaft and the rear support shaft respectively. The distance between the two supporting rollers on the front support shaft is greater than the distance between the two supporting rollers on the rear support shaft.

[0021] Preferably, the lower part of the first cover plate is provided with a drive component mounting groove, which is located near the side of the stacked cover plate and is used to push the stacked cover plate to move.

[0022] The part where the first cover plate contacts the superimposed cover plate has a bevel with an angle of θ.

[0023] Preferably, the stacked cover plate is provided with a front support shaft and a rear support shaft on both sides;

[0024] Supporting rollers are installed on the front and rear support shafts of the stacked cover plate, respectively. The distance between the two supporting rollers on the front support shaft of the stacked cover plate is greater than the distance between the two supporting rollers on the rear support shaft of the stacked cover plate.

[0025] The stacked cover plates are positioned close to the first cover plate, and the sides of the stacked cover plates are provided with clearance grooves.

[0026] The clearance groove is used to adapt to the linkage drive component, so that when the first cover plate and the stacked cover plate are completely overlapped, the stacked cover plate will move accordingly.

[0027] The overlapping cover plate has inclined surfaces at the front and rear ends with an angle of θ.

[0028] Preferably, the support track seat is provided with a cover plate support groove adapted to the support travel pulley, and the support travel pulley is used to slide on the cover plate support groove; the shape of the cover plate support groove is adapted to the travel trajectory of the first cover plate and the stacked cover plates.

[0029] Preferably, the cover plate support groove includes a first cover plate front support groove, a first cover plate rear support groove, a stacked cover plate front support groove, and a stacked cover plate rear support groove.

[0030] The front support groove of the first cover plate and the rear support groove of the first cover plate are connected, and the groove depth of the front support groove of the first cover plate is greater than the groove depth of the rear support groove of the first cover plate.

[0031] The front support groove of the stacked cover plate and the rear support groove of the stacked cover plate are connected, and the groove depth of the front support groove of the stacked cover plate is greater than the groove depth of the rear support groove of the stacked cover plate.

[0032] Preferably, the linkage drive component includes a connecting rod, with a fixed mounting shaft, a connecting rod and a sliding shaft respectively provided at both ends of the connecting rod. The fixed mounting shaft is installed in the drive component mounting groove of the first cover plate, and the sliding shaft is installed in the clearance groove of the stacked cover plate.

[0033] Preferably, the present invention further includes a safety control system, which is installed at both ends of the support rail seat and is used to detect the status of the cover plate and the locking beam in the switch position and the travel trajectory of the cover plate on the rail; the cover plate includes a first cover plate and a superimposed cover plate.

[0034] An operating method for a linkage operation device for a gate orifice cover plate in a hydropower station includes the following steps:

[0035] S1. System Startup and Preparation:

[0036] Install the transmission system at the orifice to ensure that the power receiving device, transmission mechanism and cover plate system are connected in place to the locking beam;

[0037] Check if the safety control system is working properly, and confirm that there are no foreign objects in the cover plate supporting the slide groove of the support rail seat, and that the support travel pulley is accurately aligned with the slide groove;

[0038] S2. Laying the cover plate:

[0039] Input power: Connect an external power source via a quick-connect connector to drive the input bevel gear to rotate the linkage transmission shaft;

[0040] Drive screw motion: The linkage drive shaft drives the drive screw to rotate by meshing the drive bevel gear and the receiving bevel gear;

[0041] Cover plate unfolding: The transmission screw drives the locking beam connecting screw sleeve and the cover plate connecting screw sleeve to move towards the orifice; the first cover plate is pushed by the cover plate connector through the mounting hinge seat and is laid flat along the slide groove of the support track seat; the sliding shaft of the linkage drive component slides in the clearance slide groove of the stacked cover plates, driving the subsequent stacked cover plates to unfold in sequence until the orifice is completely covered.

[0042] S3. Folding the cover plate to the end of the orifice:

[0043] Reverse power input: Reverse the direction of the power source to make the transmission screw rotate in the opposite direction;

[0044] Cover plate recycling: The first cover plate is pulled back by the cover plate connector, and its inclined surface contacts the inclined surface of the stacked cover plate, pushing the stacked cover plate to move upward along the avoidance slide; the supporting travel pulley slides in the slide, and the spacing difference between the front support shaft of the first cover plate, the front support shaft of the stacked cover plate and the rear support shaft of the first cover plate and the rear support shaft of the stacked cover plate ensures the stability of the cover plate stacking trajectory;

[0045] Stacking in place: When all the cover plates have moved to the stacking position at the end of the orifice, the safety control system detects the position signal and stops the power input;

[0046] S4. Locking beam and cover plate linkage operation, i.e., maintenance mode:

[0047] Release the pressure on the locking beam: Use lifting equipment to lift the tie rod to the locking and retraction elevation H, thereby releasing the support of the locking beam on the tie rod;

[0048] Release the locking beam: The drive transmission system moves the locking beam backward to the release position, and the cover plate system follows by stacking and avoiding it;

[0049] Gate operation: After the locking beam is removed, the gate is lifted and lowered by the lifting equipment to enter the maintenance mode. The cover plate system is temporarily kept in a stacked state during the lifting and lowering of the gate to ensure that the gate can be lifted out or into the orifice normally, effectively avoiding the lifting and lowering of the gate.

[0050] Reset locking beam: After maintenance, the reverse drive transmission system resets the locking beam to the locked position, and the cover plate system is laid flat again to cover the orifice to ensure the safety of the orifice.

[0051] S5. Safety Lock and System Reset:

[0052] Locking verification: The safety control system detects the flat / stacked state of the cover plate and whether the locking beam is in place;

[0053] Power cut-off: Disconnects the quick-connect head from the external power source, and the thrust bearing maintains the stability of the drive shaft;

[0054] System reset: After checking that there are no abnormalities in any components, clean the work area and complete the operation procedure.

[0055] The present invention can achieve the following beneficial effects:

[0056] 1. Through the coordinated design of the transmission system and the cover plate system, the entire process of locking beam deployment and retraction, and cover plate laying / stacking is automated. Workers no longer need to manually operate the equipment near the edge or in open areas, completely eliminating the risk of falls from heights and significantly improving safety.

[0057] 2. Based on a bevel gear-screw transmission structure, the power transmission is stable and efficient, and multiple cover plates and locking beams can be driven to move synchronously. Covering or stacking of cover plates can be completed in a single operation, which greatly improves efficiency compared to traditional manual hoisting and avoids the cumbersome process of coordinating multiple devices.

[0058] 3. The first cover plate and the stacked cover plates achieve automatic climbing and alignment during stacking through the avoidance groove and inclined surface design (θ angle) of the linkage drive component. The supporting travel pulley matches the track groove to ensure that the cover plate's movement trajectory is accurate and stable, which is suitable for complex scenarios with narrow openings and multi-section tie rods. Attached Figure Description

[0059] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0060] Figure 1 This is a structural diagram of a linkage operation device for a gate opening cover plate in a hydropower station according to the present invention (the cover plate is in the unfolded state).

[0061] Figure 2 This is a structural diagram of a linkage operation device for the gate opening cover plate of a hydropower station (the cover plates are in a stacked state).

[0062] Figure 3 This is a structural diagram of the power receiving device of the present invention;

[0063] Figure 4 This is a structural diagram of the transmission mechanism of the present invention;

[0064] Figure 5 This is a structural diagram of the locking beam connecting screw sleeve of the present invention;

[0065] Figure 6 This is a structural diagram of the cover plate connecting screw sleeve of the present invention;

[0066] Figure 7 This is a structural diagram of the first cover plate of the present invention;

[0067] Figure 8 This is a diagram showing the location of the mounting slot for the drive component of the present invention.

[0068] Figure 9 This is a structural diagram of the superimposed cover plate of the present invention;

[0069] Figure 10 This is a structural diagram of the supporting pulley for the present invention;

[0070] Figure 11 This is a structural diagram of the linkage drive component of the present invention;

[0071] Figure 12 This is a schematic diagram illustrating the application of the linkage operation device for the gate opening cover plate of a hydropower station according to the present invention.

[0072] Figure 13 This is a diagram showing the mating of the first cover plate, the superimposed cover plate, and the linkage drive component of the present invention.

[0073] Figure 14 for Figure 13 The enlarged image is shown in the middle (I).

[0074] In the diagram: Concrete dam 0, gate slot 01, power receiving device 21, transmission mechanism 22, transmission connector 23, mounting box 210, quick connector 211, thrust bearing 212, input bevel gear 213, output bevel gear 214, linkage transmission shaft 215, drive bevel gear 216, support rail seat 222, receiving bevel gear 221, transmission screw 220, locking beam connecting threaded sleeve 230, cover plate connecting threaded sleeve 231, cover plate connector 232, first piece Cover plate 240, stacked cover plate 241, mounting hinge seat 240-1, front support shaft of the first cover plate 240-2, rear support shaft of the first cover plate 240-3, supporting travel pulley 242, drive component mounting groove 240-4, front support shaft of the stacked cover plate 241-2, rear support shaft of the stacked cover plate 241-3, clearance slide 241-1, linkage drive component 243, fixed mounting shaft 243-1, connecting rod 243-2, sliding shaft 243-3, pull rod 5, gate 6, locking beam 7;

[0075] First cover plate front support slide groove 222-1, first cover plate rear support slide groove 222-2, stacked cover plate front support slide groove 222-3 and stacked cover plate rear support slide groove 222-4;

[0076] H1 tie rod connection point avoids elevation;

[0077] H2 Gate / Lever Locking Elevation;

[0078] H3 Elevation of the gate / lever locked state. Detailed Implementation

[0079] Preferred solutions include Figures 1 to 14 As shown, a linkage operation device for the gate orifice cover plate of a hydropower station consists of three parts: a transmission system, a cover plate system, and a safety control system. The transmission system, installed at both ends of the locking beam at the orifice, primarily functions to reciprocate the locking beams on both sides of the gate rod as needed, thereby preventing the vertical movement of the rod or gate. It includes a power receiving device, a transmission mechanism, and transmission connectors. The cover plate system, installed at the orifice, effectively covers the gate orifice to ensure operational safety in the orifice area. It includes a first cover plate, a stacked cover plate, supporting pulleys, and a linkage drive component. The safety control system mainly detects the position of the cover plate and locking beam device. When the cover plate and locking beam fail to perform their prescribed actions, it issues an audible and visual alarm and promptly transmits a signal to the transmission system control mechanism to stop the machine in time, achieving effective control of the linkage operation device and ensuring the safe operation of the equipment.

[0080] The components required for this invention are as follows:

[0081] 1. Power receiving device 21 is the main power source receiving device of this invention. After amplifying the torque of the device, it transmits the external input power to the transmission system to effectively drive the operated object, ensuring that the device operates safely and effectively as needed. The power source can be an existing product on the market, such as a handheld electric drill or a hydraulic motor. The device consists of a mounting box 210, a quick connector 211, a thrust bearing 212, an input bevel gear 213, an output bevel gear 214, a linkage transmission shaft 215, and a drive bevel gear 216.

[0082] 2. The transmission mechanism 22 is installed on both sides of the traveling area of ​​the orifice locking beam. It can convert and transmit external driving force to the locking beam and the cover plate through its own mechanism, thereby realizing the automatic deployment and retraction of the locking beam, the automatic opening and closing of the cover plate, and the effective operation of the orifice enclosure system. The mechanism includes a support rail seat 222, a receiving bevel gear 221, and a transmission screw 220. The support rail seat is provided with a mounting bracket for mounting the transmission screw at its end. The first cover plate front support groove 222-1 and the first cover plate rear support groove 222-2 are symmetrically arranged near the inside of the orifice. The groove depth L2 of the front support groove 222-1 of the first cover plate is greater than the groove depth L3 of the rear support groove 222-2 of the first cover plate, and the relationship is L2=L3+d (width of the support pulley); the front support groove 222-3 and the rear support groove 222-4 of the stacked cover plate are also present, and the groove depth L2 of the front support groove 222-3 is greater than the groove depth L3 of the support groove 222-4, and the relationship is L2=L3+d (width of the support pulley); the transmission screw 220 is symmetrically machined with positive and negative thread grooves, and cooperates with the transmission connector 23 to realize the opposite movement of the locking beam and the cover plate.

[0083] The cover plate support slide includes a first cover plate front support slide 222-1, a first cover plate rear support slide 222-2, a stacked cover plate front support slide 222-3, and a stacked cover plate rear support slide 222-4. Specifically, the inner side of the support rail seat 222 is provided with the first cover plate front support slide 222-1, the first cover plate rear support slide 222-2, the stacked cover plate front support slide 222-3, and the stacked cover plate rear support slide 222-4.

[0084] The front support groove 222-1 of the first cover plate and the rear support groove 222-2 of the first cover plate are connected, and the groove depth of the front support groove 222-1 of the first cover plate is greater than the groove depth of the rear support groove 222-2 of the first cover plate.

[0085] The front support groove 222-3 and the rear support groove 222-4 of the stacked cover plate are connected. The groove depth of the front support groove 222-3 of the stacked cover plate is greater than the groove depth of the rear support groove 222-4 of the stacked cover plate.

[0086] The support roller 242 on the front support shaft 240-2 of the first cover plate is adapted to the front support groove 222-1 of the first cover plate. The support roller 242 on the rear support groove 222-2 of the first cover plate is adapted to the rear support groove 222-2 of the first cover plate. The support roller 242 on the front support shaft 241-2 of the stacked cover plate is adapted to the front support groove 222-3 of the stacked cover plate. The support roller 242 on the rear support shaft 241-3 of the stacked cover plate is adapted to the rear support groove 222-4 of the stacked cover plate.

[0087] 3. Transmission connector 23, a customized product, is used to securely and effectively connect the locking beam and cover plate to the transmission mechanism on site. It mainly includes a locking beam connecting screw sleeve 230, a cover plate connecting screw sleeve 231, and a cover plate connector 232. The locking beam connecting screw sleeve 230 is cuboid in shape with a thread 230-1 machined in the middle, which can be used with the transmission screw 220. Its body is welded to the locking beam stiffener. The cover plate connecting screw sleeve 231 is cuboid in shape with a thread 231-1 machined in the middle, which can be used with the transmission screw 220 to realize the transmission of force. It has a mounting rod 231-2 on the side, which can be connected with the cover plate connector 232. The cover plate connector 232 is a plate structure with mounting holes 232-1 machined at both ends. The upper end is connected to the mounting rod 231-2 of the cover plate connecting screw sleeve 231, and the lower end is connected to the mounting hinge seat 240-1 of the first cover plate, realizing the effective connection between the first cover plate 240 and the transmission mechanism 22.

[0088] 4. The first cover plate 240 has a rectangular structure, with its width greater than the orifice size, allowing it to effectively overlap and cover the orifice. It has two support shafts on each side: a front support shaft 240-2 and a rear support shaft 240-3, for mounting support pulleys 242 to drive the cover plate. The length of the front support shaft 240-2 is L1, and the length of the rear support shaft is L2, with the relationship L1 = L2 + d (pulley width). This cover plate is installed on the side of the locking beam. A cover plate 240 has a mounting hinge 240-1 on the upper part away from the locking beam, which is connected to the transmission mechanism. It can receive the driving force transmitted by the transmission system and act on the first cover plate to realize the effective opening and closing operation of the cover plate. The lower part near the stacked cover plate 241 has a driving component mounting groove 240-4 that can drive the stacked cover plate 241, so as to realize the effective follow-up driving of the stacked cover plate 241. The part where it connects with the stacked cover plate 241 is set as an inclined surface of θ (30°) to facilitate the first cover plate to smoothly climb onto the top of the stacked cover plate, so as to realize the orderly stacking of the cover plates at the end of the orifice.

[0089] 5. The stacked cover plate 241 has a rectangular structure, with its width greater than the orifice size, allowing it to effectively overlap and cover the orifice. It has two support shafts on each side: a front support shaft 241-2 and a rear support shaft 241-3, for mounting and supporting the traveling pulleys 242, thus enabling effective movement of the cover plate. The length of the front support shaft 241-2 is l1, and the length of the rear support shaft is l2. The relationship is l1=l2+d (width of the supporting pulley); the cover plate is installed behind the first cover plate 240, and the upper two sides are provided with the avoidance groove 241-1 of the linkage drive component 243, which can be used in conjunction with the linkage drive component 243 to drive the stacked cover plate 241 to move when the first cover plate and the stacked cover plate are completely stacked. The front and rear end faces of the cover plate are set as inclined surfaces of θ (30°) to facilitate its body to smoothly climb onto the base surface of the orifice and realize the orderly stacking of the cover plates at the end of the orifice.

[0090] The stacked cover plate 241 can be added or removed according to the size of the opening, and its connection method is the same as that of the first cover plate 240 and the stacked cover plate 241.

[0091] 6. Supporting pulley 242 is installed on the support shaft on the side of the cover plate to provide support for the movement of the cover plate and ensure that the cover plate can move as needed in the corresponding cover plate support groove of the support rail seat 222.

[0092] 7. The linkage drive component 243 mainly consists of three parts: a fixed mounting shaft 243-1, a connecting rod 243-2, and a sliding shaft 243-3. The fixed mounting shaft 243-1 is installed in the drive component mounting groove 240-4 of the first cover plate 240, and the sliding shaft 243-3 is installed in the clearance groove 241-1 of the stacked cover plate 241. It can slide freely in the groove, and its two ends are restricted, thereby driving the opening and closing operation of the stacked cover plate 241.

[0093] 8. Safety control system, installed at both ends of the support rail, mainly detects the status of the cover plate and locking beam in the switch position and the travel trajectory on the rail. When the cover plate device and locking beam do not perform their work tasks correctly, the signal can be transmitted to the operator in the form of audible and visual alarm. The operator can stop the operation in time according to the situation to ensure the safe operation of the device system at the orifice.

[0094] An operating method for a linkage operation device for a gate orifice cover plate in a hydropower station includes the following steps:

[0095] S1. System Startup and Preparation:

[0096] Install a transmission system at the orifice to ensure that the power receiving device 21, transmission mechanism 22 and cover plate system (first cover plate 240, stacked cover plate 241, etc.) are connected to the locking beam 7 in place;

[0097] Check whether the safety control system is normal, and confirm that there are no foreign objects in the cover plate supporting the slide groove of the support rail seat 222, and that the support travel pulley 242 is accurately aligned with the slide groove;

[0098] S2. Laying the cover plate:

[0099] Input power: Connect an external power source via quick connector 211 to drive input bevel gear 213 to rotate linkage transmission shaft 215;

[0100] Drive screw movement: The linkage drive shaft 215 drives the drive bevel gear 216 to mesh with the receiving bevel gear 221, thereby driving the drive screw 220 to rotate;

[0101] Cover plate unfolding: The transmission screw 220 drives the locking beam connecting screw sleeve 230 and the cover plate connecting screw sleeve 231 to move towards the orifice; the first cover plate 240 is pushed by the cover plate connector 232 through the mounting hinge seat 240-1 and is laid flat along the slide groove of the support track seat 222; the sliding shaft 243-3 of the linkage drive component 243 slides in the clearance slide groove 241-1 of the stacked cover plate 241, driving the subsequent stacked cover plates to unfold in sequence until the orifice is completely covered;

[0102] S3. Folding the cover plate to the end of the orifice:

[0103] Reverse power input: Reverse the direction of the power source to make the transmission screw 220 rotate in the opposite direction;

[0104] Cover plate recycling: The first cover plate 240 is pulled back by the cover plate connector 232, and its inclined surface contacts the inclined surface of the stacked cover plate 241, pushing the stacked cover plate to move upward along the avoidance slide 241-1; the supporting travel pulley 242 slides in the slide 241, and the spacing difference between the front support shaft 240-2 of the first cover plate, the front support shaft 241-2 of the stacked cover plate and the rear support shaft 240-3 of the first cover plate and the rear support shaft 241-3 of the stacked cover plate ensures the stability of the cover plate stacking trajectory;

[0105] Stacking in place: When all the cover plates have moved to the stacking position at the end of the orifice, the safety control system detects the position signal and stops the power input;

[0106] S4. Locking beam and cover plate linkage operation, i.e., maintenance mode:

[0107] Release the pressure on the locking beam: Lift the tie rod 5 to the locking and retraction elevation H2 using lifting equipment, thereby releasing the support of the locking beam 7 on the tie rod;

[0108] Release the locking beam: The drive transmission system moves the locking beam 7 to the back position (B1 / B2), and the cover plate system follows by stacking to avoid it;

[0109] Gate operation: After the locking beam is removed, the gate is lifted and lowered by a lifting device for maintenance. The cover plate system is kept stacked to ensure the safety of the orifice.

[0110] Reset locking beam: After maintenance, reverse drive transmission system resets locking beam 7 to the locked position (A1 / A2), and cover plate system is laid flat again to cover the orifice;

[0111] S5. Safety Lock and System Reset:

[0112] Locking verification: The safety control system detects whether the cover plate is laid flat / stacked and whether the locking beam position (A1 / A2 or B1 / B2) is in place;

[0113] Power cut-off: Disconnects the quick connector 211 from the external power source, and the thrust bearing 212 maintains the stability of the drive shaft;

[0114] System reset: After checking that there are no abnormalities in any components, clean the work area and complete the operation procedure.

[0115] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A linkage operation device for the gate opening cover plate of a hydropower station, characterized in that: It includes a transmission system and a cover plate system; the transmission system includes a power receiving device (21), a transmission mechanism (22) and a transmission connector (23), the power receiving device (21) is in transmission cooperation with the transmission mechanism (22), the transmission mechanism (22) is in transmission cooperation with the transmission connector (23); multiple transmission connectors (23) are installed on the transmission mechanism (22), and the transmission connectors (23) are connected to the cover plate of the cover plate system; The cover plate system includes multiple cover plates, a power receiving device (21), a transmission mechanism (22) and a transmission connector (23) which drive the multiple cover plates to perform flat or stacking operations under the action of the power source; The power receiving device (21) includes a mounting box (210) and a linkage drive shaft (215), and the linkage drive shaft (215) is rotatably mounted in the mounting box (210). The power receiving device (21) also includes a drive bevel gear (216), which is coaxially mounted on the linkage transmission shaft (215); The transmission mechanism (22) is used to be installed on both sides of the traveling area of ​​the orifice locking beam; the transmission mechanism (22) includes a support rail seat (222), a receiving bevel gear (221) and a transmission screw (220). The receiving bevel gear (221) meshes with the driving bevel gear (216), and the receiving bevel gear (221) is coaxially connected with the transmission screw (220); the transmission screw (220) is rotatably mounted on the support rail seat (222). The transmission connector (23) includes a locking beam connecting threaded sleeve (230), a cover plate connecting threaded sleeve (231), and a cover plate connector (232). The locking beam connecting screw sleeve (230) is threadedly engaged with the transmission screw (220), the cover plate connecting screw sleeve (231) is threadedly engaged with the transmission screw (220), the cover plate connecting screw sleeve (231) is connected to the cover plate connector (232) through the mounting rod (231-2), and the cover plate connector (232) is provided with mounting holes (232-1).

2. The linkage operation device for the gate opening cover plate of a hydropower station according to claim 1, characterized in that: The power receiving device (21) also includes a quick connector (211), a thrust bearing (212), an input bevel gear (213), and an output bevel gear (214). The drive shaft (215) is provided with an output bevel gear (214), which meshes with the input bevel gear (213); the input bevel gear (213) is connected to the quick connector (211) through a rotating shaft, and the rotating shaft is mounted on the mounting box (210) through a thrust bearing (212).

3. The linkage operation device for the gate opening cover plate of a hydropower station according to claim 2, characterized in that: The cover plate system includes two types: a first cover plate (240) and a stacked cover plate (241), wherein: The first cover plate (240) is used to be installed on the side close to the locking beam, and the superimposed cover plate (241) is used to be installed on the side away from the locking beam; The first cover plate (240) is provided with a mounting hinge (240-1), which is used to hinge with the cover plate connector (232).

4. The linkage operation device for the gate opening cover plate of a hydropower station according to claim 3, characterized in that: The first cover plate (240) has a front support shaft (240-2) and a rear support shaft (240-3) on both sides. Supporting pulleys (242) are installed on the front support shaft (240-2) and the rear support shaft (240-3) respectively. The distance between the two supporting pulleys (242) on the front support shaft (240-2) is greater than the distance between the two supporting pulleys (242) on the rear support shaft (240-3).

5. A linkage operation device for the gate opening cover plate of a hydropower station according to claim 4, characterized in that: The first cover plate (240) has a drive component mounting groove (240-4) at the bottom. The drive component mounting groove (240-4) is located on the side close to the stacked cover plate (241) and is used to push the stacked cover plate (241) to move. The part where the first cover plate (240) contacts the superimposed cover plate (241) has a bevel with an angle of θ.

6. A linkage operation device for the gate opening cover plate of a hydropower station according to claim 4, characterized in that: The stacked cover plate (241) has a front support shaft (241-2) and a rear support shaft (241-3) on both sides. Supporting pulleys (242) are installed on the front support shaft (241-2) and the rear support shaft (241-3) of the stacked cover plate, respectively. The distance between the two supporting pulleys (242) on the front support shaft (241-2) of the stacked cover plate is greater than the distance between the two supporting pulleys (242) on the rear support shaft (241-3) of the stacked cover plate. The stacked cover plate (241) is arranged close to the first cover plate (240), and the side of the stacked cover plate (241) is provided with a clearance groove (241-1). The clearance groove (241-1) is used to adapt to the linkage drive component (243) so that when the first cover plate (240) and the stacked cover plate (241) are fully stacked, the stacked cover plate (241) will move accordingly. The superimposed cover plate (241) has inclined surfaces at the front and rear ends with an angle of θ.

7. A linkage operation device for the gate opening cover plate of a hydropower station according to claim 4 or 6, characterized in that: The support track seat (222) is provided with a cover plate support groove that is adapted to the support walking pulley (242). The support walking pulley (242) is used to slide on the cover plate support groove. The shape of the cover plate support groove is adapted to the walking trajectory of the first cover plate (240) and the superimposed cover plate (241).

8. A linkage operation device for the gate opening cover plate of a hydropower station according to claim 7, characterized in that: The cover plate support groove includes the first cover plate front support groove (222-1), the first cover plate rear support groove (222-2), the stacked cover plate front support groove (222-3), and the stacked cover plate rear support groove (222-4). The front support groove (222-1) of the first cover plate and the rear support groove (222-2) of the first cover plate are connected, and the groove depth of the front support groove (222-1) of the first cover plate is greater than the groove depth of the rear support groove (222-2) of the first cover plate. The front support groove (222-3) and the rear support groove (222-4) of the stacked cover plate are connected. The groove depth of the front support groove (222-3) of the stacked cover plate is greater than the groove depth of the rear support groove (222-4).

9. A linkage operation device for the gate opening cover plate of a hydropower station according to claim 6, characterized in that: The linkage drive component (243) includes a connecting rod (243-2). The two ends of the connecting rod (243-2) are respectively provided with a fixed mounting shaft (243-1), a connecting rod (243-2), and a sliding shaft (243-3). The fixed mounting shaft (243-1) is installed in the drive component mounting groove (240-4) of the first cover plate (240), and the sliding shaft (243-3) is installed in the clearance groove (241-1) of the stacked cover plate (241).

10. A linkage operation device for the gate opening cover plate of a hydropower station according to claim 6, characterized in that: It also includes a safety control system, which is installed at both ends of the support rail seat (222) to detect the status of the cover plate and the locking beam in the switch position and the travel trajectory of the cover plate on the rail; the cover plate includes a first cover plate (240) and a superimposed cover plate (241).

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