Hydropower station locking beam and protection fence follow-up mechanism and operating method

Abstract

The following describes the following mechanism and operation method for a locking beam and protective fence in a hydropower station: a transmission system and a fence system. The transmission system includes a power receiving device, a transmission mechanism, and transmission connectors. The power receiving device and the transmission mechanism are in transmission cooperation, as are the transmission mechanism and the transmission connectors. Multiple transmission connectors are installed on the transmission mechanism. The fence system includes a traction rope and a guide lifting component. The traction rope and the guide lifting component work together to achieve the erection and disengagement of the fence system. The transmission connectors are connected to the guide lifting component. Through the coordinated operation of the transmission system and the fence system, the locking beam and the protective fence can be raised and lowered synchronously and precisely, significantly improving the efficiency, safety, and reliability of hydropower station orifice protection operations and reducing the risk of manual intervention and misoperation.

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 the follow-up mechanism and operation method of the locking beam and protective fence of hydropower stations. Background Technology

[0002] In hydropower stations and other water conservancy projects, orifice locking beams are used for safety locking during equipment maintenance, while protective fences are used to isolate dangerous areas and prevent personnel from accidentally entering. In traditional technology, the deployment and retraction of locking beams and the erection / removal of fence systems are usually done manually, which presents the following significant problems:

[0003] Low operational efficiency: The movement of the locking beam and the raising and lowering of the fence need to be operated in steps, relying on manual labor or simple mechanical drive, which is time-consuming and labor-intensive, and cannot meet the needs of rapid response in emergency situations.

[0004] Poor safety coordination: The fence system and the locking beam are not synchronized, which cannot meet the safety hazard of the fence not being able to be erected in time after the opening of the locking beam is exposed during the withdrawal process. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a follow-up mechanism and operation method for locking beams and protective fences in hydropower stations. Through the coordinated linkage of the transmission system and the fence system, the locking beams and protective fences are raised and lowered synchronously and accurately, which significantly improves the efficiency, safety and reliability of the protection operation of the hydropower station orifice, and reduces the risk of manual intervention and misoperation.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] The locking beam and protective fence follow-up mechanism of the hydropower station includes a transmission system and a fence system; the transmission system includes a power receiving device, a transmission mechanism, and transmission connectors, the power receiving device and the transmission mechanism are in transmission cooperation, and the transmission mechanism and the transmission connectors are in transmission cooperation; multiple transmission connectors are installed on the transmission mechanism.

[0008] The fence system includes a traction rope and a guide component; the traction rope and the guide component work together to enable the fence system to be erected and dismantled.

[0009] The transmission connector is connected to the guide component.

[0010] Preferably, the traction rope is a steel wire rope, with both ends of the steel wire rope fixed on the end fixing base. The steel wire rope includes an upper steel wire rope, a middle steel wire rope, a lower steel wire rope, and an end steel wire rope. The upper steel wire rope, the middle steel wire rope, the lower steel wire rope, and the end steel wire rope, together with the guide component, enable the construction and dismantling of the fence system.

[0011] Preferably, the guide member is used for mounting on the locking beam, and the guide member includes a support plate, a connecting rod, and a support pulley mounting shaft;

[0012] The support plate has 6 mounting holes for the support pulleys;

[0013] The two support plates are connected by a connecting rod, and space is reserved between the two support plates for installing support pulleys;

[0014] A support pulley is mounted on the support pulley mounting shaft;

[0015] Four guide components and steel wire ropes constitute the fence.

[0016] Preferably, the supporting pulleys include a large-diameter pulley, a medium-diameter pulley, and a small-diameter pulley;

[0017] The support pulleys on each guide component are divided into two groups, A and B. Group A is installed with large-diameter pulleys, medium-diameter pulleys and small-diameter pulleys at three height levels from top to bottom. Group B is located at the lower corner of the guide component and is installed with large-diameter pulleys, medium-diameter pulleys and small-diameter pulleys at three height levels from bottom to top.

[0018] Preferably, both ends of the upper wire rope, middle wire rope, and lower wire rope are installed on the end fixing base. The upper wire rope passes over a large-diameter pulley and a small-diameter pulley; the middle wire rope passes over a large-diameter pulley and a small-diameter pulley; and the lower wire rope passes over a large-diameter pulley and a small-diameter pulley.

[0019] The end wire rope is used to connect the two guide components, and the end wire rope is perpendicular to the upper wire rope; the upper wire rope, the middle wire rope, and the lower wire rope are located on the same plane.

[0020] Preferably, the support pulleys of group A are used to divide the upper, middle and lower wire ropes into three heights for their protective function; the support pulleys of group B are used for guiding function; and the end wire ropes are arranged in three height sections.

[0021] 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;

[0022] 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.

[0023] Preferably, the power receiving device further includes a drive bevel gear, which is coaxially mounted on the linkage transmission shaft;

[0024] 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;

[0025] It accepts bevel gears that mesh with drive bevel gears, and accepts bevel gears that are coaxially connected with transmission screws; the transmission screws are rotatably mounted on the support rail seat.

[0026] Preferably, the transmission connector includes a locking beam connecting screw sleeve, which is threadedly engaged with the transmission lead screw and is used to fix the locking beam.

[0027] The operation method and steps for the follow-up mechanism of the locking beam and protective fence of the hydropower station are as follows:

[0028] Install the transmission system: Install the power receiving device in the predetermined position and ensure that it is correctly connected to the external power source;

[0029] Install the transmission mechanism: Fix the support rail seat on both sides of the locking beam's travel area; install the receiving bevel gear and transmission screw, ensuring a secure connection between the transmission screw and the support rail seat;

[0030] Install the transmission connector: Install the transmission connector on the transmission screw, ensuring that it is securely fixed to the locking beam;

[0031] Install the fencing system: fix the end fixing bases, install the wire ropes, including the upper wire rope, middle wire rope, lower wire rope and end wire ropes; install the guide components on the locking beam, configure the support pulleys, and ensure that the wire ropes pass through the pulleys correctly;

[0032] Start the power source: Connect an external power source via the quick connector to start the power receiving device and drive the bevel gear to start rotating;

[0033] The transmission mechanism works as follows: it receives a bevel gear to drive the transmission screw to rotate, and the transmission connecting parts move along the transmission screw, which in turn moves the locking beam.

[0034] Fence system operation: When the locking beam moves, the guide component moves accordingly, and the steel wire rope adjusts its position through the support pulley to complete the erection or removal of the fence.

[0035] The present invention can achieve the following beneficial effects:

[0036] This invention employs a collaborative design between the transmission system and the fencing system. It utilizes bevel gear transmission and lead screw drive to convert the input from an external power source (such as an electric drill or hydraulic motor) into linear movement of the locking beam. This movement is then guided in layers by transmission connectors, ensuring synchronized operation of the fencing system's wire ropes. The diameter difference between the large-diameter, medium-diameter, and small-diameter pulleys guides the upper, middle, and lower wire ropes in layers, ensuring precise and controllable fencing lifting trajectory. Attached Figure Description

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0038] Figure 1 This is a front view of the follow-up mechanism between the locking beam and the protective fence of the hydropower station according to the present invention;

[0039] Figure 2 This is a diagram showing the usage state (folded state) of the follow-up mechanism between the locking beam and the protective fence of the hydropower station according to the present invention.

[0040] Figure 3 This is a diagram showing the operational state (unfolded state) of the follow-up mechanism between the locking beam and the protective fence of the hydropower station according to the present invention.

[0041] Figure 4 This is a structural diagram of the support plate and connecting rod of the present invention;

[0042] Figure 5 This is a three-dimensional structural diagram of the guide component of the present invention;

[0043] Figure 6 This is a structural diagram of the end fixing base of the present invention;

[0044] Figure 7 This is a structural diagram of the power receiving device of the present invention;

[0045] Figure 8 This is a structural diagram of the transmission mechanism of the present invention;

[0046] Figure 9 This is a structural diagram of the transmission connector of the present invention.

[0047] In the diagram: Wire rope 30, upper wire rope 301, middle wire rope 302, lower wire rope 303, end wire rope 304, guide component 31, support plate 311, support pulley mounting hole 311-1, connecting rod 312, support pulley mounting shaft 313, support pulley 32, large diameter pulley 321, medium diameter pulley 322, small diameter pulley 323, end fixed base 33, U-shaped structure 331, fixed crossbar 332, safety control system, power receiving device 21, 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, transmission mechanism 22, support rail seat 222, receiving bevel gear 221, transmission screw 220, transmission connector 23, locking beam connecting sleeve 230, thread 230-1. Detailed Implementation

[0048] Preferred solutions include Figures 1 to 9 As shown, the following is the structure of each component of the follow-up mechanism between the locking beam and the protective fence of the hydropower station:

[0049] The steel wire rope 30 is a mature product on the market. Its two ends are fixed on the end fixing base 33. It is installed in three layers on various components of the fence system, namely the upper steel wire rope 301, the middle steel wire rope 302, the lower steel wire rope 303 and the end steel wire rope 304. It can be used with the guide component 31 to realize the construction and withdrawal of the fence system.

[0050] The guide component 31 is mounted on the locking beam and mainly consists of a support plate 311, a connecting rod 312, and a support pulley mounting shaft 313. The component consists of two plate-shaped support plates 311 that are effectively connected by the connecting rod 312, with a reserved space in the middle for the installation of the support pulley 32. Its body height is 1250mm, and support pulley mounting holes 311-1 are opened at the heights of the support plate 311 at 400mm, 800mm, and 1200mm respectively for installing the support pulley 32.

[0051] The support pulley 32 is installed on the support pulley mounting shaft 313 of the guide member 31. It mainly consists of a large-diameter pulley 321, a medium-diameter pulley 322, and a small-diameter pulley 323. It can guide and support the three layers of steel wire rope 30 in layers. When the orifice locking beam 7 is withdrawn, the steel wire rope 30 is raised in an orderly manner to effectively build a safe and reliable isolation fence at the orifice. When the orifice locking beam 7 is put in, the steel wire rope 30 is lowered in an orderly manner to withdraw the enclosure function of the fence system and ensure that the orifice is not blocked.

[0052] The end fixing base 33 has a U-shaped structure 331, with three crossbars 332 in the middle for fixing three layers of steel wire rope. Its body is installed at both ends of the locking beam support track at the opening to fix the fence steel wire rope 30 and ensure the safety and reliability of the steel wire rope during use.

[0053] The invention also includes a safety control system installed at both ends of the support rail. This system mainly detects the switch position of the locking beam at the orifice and the travel trajectory on the rail. When the locking beam fails to perform its work task correctly, it can transmit the signal to the operator in the form of an 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.

[0054] The 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.

[0055] 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 through its own mechanism, thereby realizing the automatic deployment and retraction of the locking beam as needed and the effective operation of the orifice fence system. The mechanism includes a support rail seat 222, a receiving bevel gear 221 and a transmission screw 220. The transmission screw 220 has symmetrical positive and negative thread grooves at both ends, which cooperate with the transmission connector 230 to achieve synchronous movement of the locking beam 7 in opposite directions.

[0056] Transmission connector 23, a customized product, is used to effectively connect the locking beam and the transmission mechanism on site. It mainly includes locking beam connecting screw sleeve 230, which is rectangular in shape with a thread 230-1 machined in the middle. It can be used with transmission screw 220. Its body is welded to the locking beam stiffener plate.

[0057] The operation method and steps for the follow-up mechanism of the locking beam and protective fence of the hydropower station are as follows:

[0058] Install the transmission system: Install the power receiving device 21 in the predetermined position and ensure that it is correctly connected to the external power source;

[0059] Install the transmission mechanism: Fix the support rail seat 222 on both sides of the locking beam travel area; install the receiving bevel gear 221 and the transmission screw 220 to ensure that the transmission screw is firmly connected to the support rail seat;

[0060] Install the transmission connector: Install the transmission connector 23 on the transmission lead screw, ensuring that it is securely fixed to the locking beam;

[0061] Install the fencing system: fix the end fixing base 33, install the wire rope 30, including the installation of the upper wire rope 301, the middle wire rope 302, the lower wire rope 303 and the end wire rope 304; install the guide member 31 on the locking beam, and configure the support pulley 32 to ensure that the wire rope passes through the pulley correctly;

[0062] Start the power source: Connect an external power source via quick connector 211 to start the power receiving device and drive the bevel gear to start rotating;

[0063] The transmission mechanism works as follows: it receives the drive of the bevel gear 221 to rotate the transmission screw 220, and the transmission connector 23 moves along the transmission screw, thereby moving the locking beam.

[0064] Fence system operation: When the locking beam moves, the guide component 31 moves accordingly, and the steel wire rope adjusts its position through the support pulley 32 to complete the erection or removal of the fence.

[0065] 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 follow-up mechanism for the locking beam and protective fence of a hydropower station, characterized in that: It includes a transmission system and a fence 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), and the transmission mechanism (22) is in transmission cooperation with the transmission connector (23); multiple transmission connectors (23) are installed on the transmission mechanism (22). The fence system includes a traction rope and a guide component (31); the traction rope and the guide component (31) work together to enable the fence system to be erected and de-erected. The transmission connector (23) is connected to the guide member (31); The traction rope is a steel wire rope (30), with both ends of the steel wire rope (30) fixed on the end fixing base (33). The steel wire rope (30) includes an upper steel wire rope (301), a middle steel wire rope (302), a lower steel wire rope (303), and an end steel wire rope (304). The upper steel wire rope (301), the middle steel wire rope (302), the lower steel wire rope (303), and the end steel wire rope (304) together with the guide component (31) realize the construction and withdrawal of the fence system. The guide member (31) is used to be installed on the locking beam. The guide member (31) includes a support plate (311), a connecting rod (312), and a support pulley mounting shaft (313). The support plate (311) has 6 support pulley mounting shaft holes (311-1). The two support plates (311) are connected by a connecting rod (312), and a space is reserved in the middle of the two support plates (311) for the installation of a support pulley (32); A support pulley (32) is mounted on the support pulley mounting shaft (313); Four guide components (31) and steel wire rope (30) constitute the fence; 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).

2. The follow-up mechanism for the locking beam and protective fence of the hydropower station according to claim 1, characterized in that: The support pulley (32) includes a large-diameter pulley (321), a medium-diameter pulley (322), and a small-diameter pulley (323). The support pulleys (32) on each guide member (31) are divided into two groups, A and B. Group A is divided into three height levels from top to bottom, with large diameter pulleys (321), medium diameter pulleys (322) and small diameter pulleys (323) installed respectively. Group B is located at the lower corner of the guide member (31), with large diameter pulleys (321), medium diameter pulleys (322) and small diameter pulleys (323) installed from bottom to top in three height levels.

3. The follow-up mechanism for the locking beam and protective fence of the hydropower station according to claim 2, characterized in that: The upper wire rope (301), the middle wire rope (302), and the lower wire rope (303) are all installed on the end fixed base (33). The upper wire rope (301) passes over a large-diameter pulley (321) and a small-diameter pulley (323); the middle wire rope (302) passes over a large-diameter pulley (321) and a small-diameter pulley (323); and the lower wire rope (303) passes over a large-diameter pulley (321) and a small-diameter pulley (323). The end wire rope (304) is used to connect the two guide members (31), and the end wire rope (304) is perpendicular to the upper wire rope (301); the upper wire rope (301), the middle wire rope (302), and the lower wire rope (303) are located on the same plane.

4. The follow-up mechanism for the locking beam and protective fence of the hydropower station according to claim 1, characterized in that: The support pulleys (32) of group A are used to divide the upper wire rope (301), middle wire rope (302) and lower wire rope (303) into three heights for their protective function; the support pulleys (32) of group B are used for guiding function; the end wire ropes (304) are arranged in three height sections.

5. The follow-up mechanism for the locking beam and protective fence of the hydropower station according to claim 1, characterized in that: The power receiving device (21) includes a mounting box (210), a quick connector (211), a thrust bearing (212), an input bevel gear (213), an output bevel gear (214), and a linkage drive shaft (215). The mounting box (210) is rotatably mounted with a linkage drive shaft (215). The linkage drive shaft (215) is provided with an output bevel gear (214), which meshes with an input bevel gear (213). The input bevel gear (213) is connected to a quick connector (211) via a rotating shaft, and the rotating shaft is mounted on the mounting box (210) via a thrust bearing (212).

6. The follow-up mechanism for the locking beam and protective fence of the hydropower station according to claim 5, characterized in that: The transmission connector (23) includes a locking beam connecting screw sleeve (230), which is threadedly engaged with the transmission screw (220) and is used to fix the locking beam.

7. The operation method of the follow-up mechanism between the locking beam and the protective fence of the hydropower station according to claim 6, characterized in that: Install the transmission system: Install the power receiving device (21) in the predetermined position and ensure that it is properly connected to the external power source; Install the transmission mechanism: Fix the support rail seat (222) on both sides of the locking beam travel area; install the receiving bevel gear (221) and the transmission screw (220) to ensure that the transmission screw is firmly connected to the support rail seat; Install the transmission connector: Install the transmission connector (23) on the transmission screw and ensure that it is securely fixed to the locking beam; Install the fence system: fix the end fixing base (33), install the wire rope (30), including the installation of the upper wire rope (301), the middle wire rope (302), the lower wire rope (303) and the end wire rope (304); install the guide member (31) on the locking beam, and configure the support pulley (32) to ensure that the wire rope passes through the pulley correctly; Start the power source: Connect an external power source through the quick connector (211) to start the power receiving device and drive the bevel gear to start rotating; The transmission mechanism works as follows: the transmission screw (220) is driven to rotate by the bevel gear (221), and the transmission connector (23) moves along the transmission screw, thereby moving the locking beam. Fence system operation: When the locking beam moves, the guide component (31) moves accordingly, and the steel wire rope adjusts its position through the support pulley (32) to complete the construction or removal of the fence.

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