Ship lock miter gate bottom pivot reamed hole bolt dismounting device and method

Abstract

The invention provides a ship lock miter gate bottom pivot reamed hole bolt dismantling device and method.The ship lock miter gate bottom pivot reamed hole bolt dismantling device comprises a connecting threaded hole machined in the top of a reamed hole bolt to be dismantled, a pull rod is connected to the connecting threaded hole in a threaded fit mode, and a bearing cross beam is installed on the pull rod through a nut assembly; a first jacking device and a second jacking device are symmetrically installed on the two sides of the reamed hole bolt to be disassembled and located between the herringbone door bottom pivot base and the bearing cross beam. According to the device, a jacking and drawing dismounting mode is adopted, the problem that the reamed hole bolt is inconvenient to dismount due to narrow space can be effectively solved, the dismounting efficiency of the reamed hole bolt is effectively improved, and the dismounting convenience is improved; and the device is convenient to combine and use and easy to store.

Description

Technical Field

[0001] The invention relates to the technical field of maintenance of a bottom pivot of a ship lock miter door, in particular to a device and method for removing bolts from hinged holes of a bottom pivot of a ship lock miter door. Background Art

[0002] The bottom pivot of a certain ship lock miter gate is the movable joint of the ship lock miter gate, and together with the top pivot, it supports the fulcrum of the miter gate opening and closing. The bottom pivot not only needs to bear the overall weight of the miter gate, but also ensure the flexible operation of the miter gate opening and closing, and the door leaf of the miter gate can rotate around the bottom pivot as the fulcrum. The bottom pivot hinge hole bolt is the connecting bolt above the bearing bush connecting the door leaf of the miter gate and the bottom pivot, which mainly limits the lateral displacement of the bottom pivot bearing bush on the door leaf, providing a guarantee for the positioning of the entire miter gate. The hinge hole bolts are generally set to 10-16 according to the size of the ship lock miter gate, the bottom pivot structure, etc., but 6-7 of the hinge hole bolts are interference fit with the base of the bottom pivot of the miter gate, and the narrow position makes it inconvenient to disassemble. Summary of the invention

[0003] In order to solve the current technical problems, the main purpose of the present invention is to provide a device and method for removing the hinged hole bolts of the bottom pivot of the lock miter gate. This device adopts a disassembly method of jacking and pulling, which can effectively overcome the problem of inconvenience in disassembling the hinged hole bolts caused by the small space, effectively improve the efficiency of disassembly of the hinged hole bolts, and improve the convenience of disassembly; and this device combination is convenient to use and easy to store.

[0004] In order to realize the above-mentioned technical features, the object of the present invention is achieved as follows: a device for removing the bolts of the hinged holes of the bottom pivot of a ship lock miter gate, comprising a connecting threaded hole processed on the top of the bolts of the hinged holes to be removed, a pull rod is connected to the connecting threaded hole through threaded cooperation, a load-bearing beam is installed on the pull rod through a nut assembly, and a first lifting device and a second lifting device are symmetrically installed on both sides of the bolts of the hinged holes to be removed and between the base of the bottom pivot of the miter gate and the load-bearing beam.

[0005] The connecting threaded hole is processed at the center of the hexagonal head of the hole-reamed bolt to be removed.

[0006] An interference fit is adopted between the hinged hole bolt to be disassembled and the bottom pivot base of the miter door.

[0007] A tie rod hole for passing the tie rod is processed on the load-bearing crossbeam, and a clearance fit is adopted between the tie rod hole and the tie rod.

[0008] The nut assembly comprises a lower nut and an upper nut which are mounted on the pull rod through threaded cooperation, and the lower nut and the upper nut are respectively located at two ends of the bearing crossbeam.

[0009] The first lifting device and the second lifting device both use jacks.

[0010] A method for removing bolts from the bottom pivot of a ship lock miter door, the method being implemented by using a device for removing bolts from the bottom pivot of a ship lock miter door according to any one of claims 5 to 6, comprising the following steps: Step 1: Preliminary removal of the bolts with reamed holes to be removed: Transport all dismantling devices to the maintenance site, and remove the reaming hole bolt nuts from the heads of the reaming hole bolts to be removed using a heavy-duty percussion wrench; Step 2, dismantle the assembly of the device: Fix one end of the tie rod on the connecting threaded hole through the connecting threaded hole, first install the lower nut on the other end, then pass the load-bearing crossbeam through the tie rod, and finally install the upper nut, and preliminarily adjust the position of the load-bearing crossbeam according to the height dimensions of the first jacking device and the second jacking device, and then lock its position; Step 3: Arrangement and installation of the first jacking device and the second jacking device: The first jacking device and the second jacking device are arranged between the bottom pivot base of the miter door and the bearing crossbeam; Step 4, lifting of the load-bearing beam: The first jacking device and the second jacking device are started, and the load-bearing crossbeam is lifted by the first jacking device and the second jacking device. During the lifting process of the load-bearing crossbeam, the pull rod is driven to drive the hinged hole bolt to be removed to be separated from the bottom pivot base of the miter door through the pull rod; Step 5, adjustment of lifting: After the first jacking device and the second jacking device reach the jacking limit, a jacking pad is installed between the first jacking device and the second jacking device, and then steps 4 and 5 are repeated until the bolts of the reaming holes to be removed are completely removed; Step 6: Dismantling and recycling of the dismantling device: After the removal of the hinged hole bolts from the bolt holes of the bottom pivot base of the miter door is completed, the upper nut, the load-bearing crossbeam, the lower nut and the pull rod are removed in sequence.

[0011] The present invention has the following beneficial effects: 1. This device adopts the disassembly method of lifting and pulling, which can effectively overcome the problem of inconvenience in disassembling the reamed hole bolts caused by the small space, effectively improve the efficiency of disassembly of the reamed hole bolts, and improve the convenience of disassembly; and this device combination is convenient to use and easy to store.

[0012] 2. The above-mentioned connecting threaded holes facilitate the fixing of the tie rod, and then the bolts of the reamed holes to be removed are pulled out by the pulling force of the tie rod, and finally the purpose of removing the bolts of the reamed holes to be removed is achieved.

[0013] 3. Through the above-mentioned matching method, it is convenient to install the load-bearing beam later, and then the load-bearing beam is limitedly installed on the corresponding pull rod to provide a reaction force for subsequent pulling.

[0014] 4. The nut assembly mentioned above facilitates the limiting of the load-bearing crossbeam, thereby facilitating the adjustment of its position to adapt to first jacking devices and second jacking devices of different sizes, thereby enhancing flexibility.

[0015] 5. The use of a jack simplifies the installation process and ensures that sufficient pulling force can be generated to pull out the bolts of the reamed holes to be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention from the first perspective.

[0018] Figure 2 It is a three-dimensional diagram from a second viewing angle of the overall structure of the present invention.

[0019] Figure 3 It is the front view of the present invention.

[0020] Figure 4 It is a side view of the present invention.

[0021] Figure 5 For the present invention Figure 4 Medium AA view.

[0022] In the figure: pull rod 1, upper nut 2, lower nut 3, bearing crossbeam 4, first jacking device 5, miter door bottom pivot base 6, second jacking device 7, hexagonal head 8, reamed hole bolt 9 to be disassembled, connecting threaded hole 10, pull rod hole 11, reamed hole bolt nut 12. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0024] Embodiment 1: See also Figure 1-5, a device for removing bolts of hinged holes of a ship lock miter gate bottom pivot, comprising a connecting threaded hole 10 processed on the top of the hinged hole bolt 9 to be removed, a pull rod 1 is connected to the connecting threaded hole 10 through threaded matching, a bearing crossbeam 4 is installed on the pull rod 1 through a nut assembly, and a first jacking device 5 and a second jacking device 7 are symmetrically installed on both sides of the hinged hole bolt 9 to be removed and between the miter gate bottom pivot base 6 and the bearing crossbeam 4. This device adopts a disassembly method of lifting and pulling, which can effectively overcome the problem of inconvenience in disassembling the hinged hole bolts caused by small space, effectively improve the efficiency of disassembling the hinged hole bolts, and improve the convenience of disassembly; and this device is convenient to use and easy to store. During specific use, the first jacking device 5 and the second jacking device 7 are arranged between the load-bearing beam 4 and the bottom pivot base 6 of the miter door, and then the first jacking device 5 and the second jacking device 7 are started, and the load-bearing beam 4 is driven by the first jacking device 5 and the second jacking device 7, and then the load-bearing beam 4 drives the pull rod 1, and then the pull rod 1 drives the bottom hinged hole bolt 9 to be disassembled to be separated from the bottom pivot base 6 of the miter door, thereby finally achieving the purpose of removing the hinged hole bolt 9 to be disassembled.

[0025] Furthermore, the connecting threaded hole 10 is processed in the center of the hexagonal head 8 of the reamed hole bolt 9 to be removed. The connecting threaded hole 10 is convenient for fixing and installing the pull rod 1, and then the reamed hole bolt 9 to be removed is pulled out by the pulling force of the pull rod 1, and finally the purpose of removing the reamed hole bolt 9 to be removed is achieved.

[0026] Further, the interference fit is adopted between the reamed hole bolt 9 to be removed and the miter door bottom pivot base 6. The above-mentioned fit is a conventional installation and fixing method of the reamed hole bolt 9 to be removed.

[0027] Furthermore, the bearing crossbeam 4 is processed with a rod hole 11 for passing the rod 1, and a clearance fit is adopted between the rod hole 11 and the rod 1. The above-mentioned fit facilitates the subsequent installation of the bearing crossbeam 4, and then the bearing crossbeam 4 is limitedly installed on the corresponding rod 1 to provide a reaction force for subsequent pulling.

[0028] Furthermore, the nut assembly includes a lower nut 3 and an upper nut 2 installed on the pull rod 1 through threaded cooperation, and the lower nut 3 and the upper nut 2 are respectively located at both ends of the bearing crossbeam 4. The above-mentioned nut assembly facilitates the positioning of the bearing crossbeam 4, and then facilitates the adjustment of its position to adapt to the first jacking device 5 and the second jacking device 7 of different sizes, thereby enhancing flexibility.

[0029] Furthermore, the first lifting device 5 and the second lifting device 7 are both jacks. The use of jacks simplifies the installation process and ensures that sufficient pulling force can be generated to pull out the reaming hole bolts 9 to be removed.

[0030] Embodiment 2: A method for removing bolts from the bottom pivot of a ship lock miter door, the method being implemented by using a device for removing bolts from the bottom pivot of a ship lock miter door according to any one of claims 5 to 6, comprising the following steps: Step 1, preliminary removal of the reamed hole bolt 9 to be removed: All dismantling devices are transported to the maintenance site, and the reaming hole bolt nut 12 at the head of the reaming hole bolt 9 to be dismantled is removed by a heavy-duty percussion wrench; Step 2, dismantle the assembly of the device: One end of the tie rod 1 is fixedly installed on the connecting threaded hole 10 through the connecting threaded hole 10, and the other end is first installed with the lower nut 3, and then the bearing crossbeam 4 is passed through the tie rod 1, and finally the upper nut 2 is installed, and according to the height dimensions of the first jacking device 5 and the second jacking device 7, the position of the bearing crossbeam 4 is preliminarily adjusted, and then its position is locked; Step 3, arrangement and installation of the first lifting device 5 and the second lifting device 7: The first lifting device 5 and the second lifting device 7 are arranged between the bottom pivot base 6 of the miter door and the bearing crossbeam 4; Step 4, lifting of the load-bearing beam 4: Start the first jacking device 5 and the second jacking device 7, and jack up the load-bearing crossbeam 4 through the first jacking device 5 and the second jacking device 7. During the jacking process of the load-bearing crossbeam 4, the pull rod 1 is driven, and the pull rod 1 drives the hinged hole bolt 9 to be removed to be separated from the bottom pivot base 6 of the miter door; Step 5, adjustment of lifting: After the first jacking device 5 and the second jacking device 7 reach the jacking limit position, a jacking pad is installed between the first jacking device 5 and the second jacking device 7, and then steps 4 and 5 are repeated until the bolts 9 with the holes to be removed are completely removed; Step 6: Dismantling and recycling of the dismantling device: After the removal of the reamed hole bolt 9 from the bolt hole of the bottom pivot base 6 of the miter door is completed, the upper nut 2, the bearing crossbeam 4, the lower nut 3 and the pull rod 1 are removed in sequence.

Claims

1. A device for removing bolts from the bottom pivot holes of a ship lock miter gate, characterized in that: The invention comprises a connecting threaded hole (10) processed at the top of a bolt (9) for making a hole to be removed, a pull rod (1) being connected to the connecting threaded hole (10) by threaded cooperation, a bearing cross beam (4) being installed on the pull rod (1) by a nut assembly, and a first lifting device (5) and a second lifting device (7) being symmetrically installed on both sides of the bolt (9) for making a hole to be removed and between the bottom pivot base (6) of the miter door and the bearing cross beam (4).

2. According to claim 1, a device for removing bolts from the bottom pivot holes of a ship lock miter door, characterized in that: The connecting threaded hole (10) is machined at the center of the hexagonal head (8) of the reamed hole bolt (9) to be removed.

3. The device for removing bolts from the bottom pivot holes of a ship lock miter door according to claim 1, characterized in that: An interference fit is adopted between the reamed hole bolt (9) to be removed and the miter door bottom pivot base (6).

4. The device for removing bolts from the bottom pivot holes of a ship lock miter door according to claim 1, characterized in that: A tie rod hole (11) for passing the tie rod (1) is machined on the bearing crossbeam (4), and a clearance fit is adopted between the tie rod hole (11) and the tie rod (1).

5. The device for removing bolts from the bottom pivot holes of a ship lock miter door according to claim 1, characterized in that: The nut assembly comprises a lower nut (3) and an upper nut (2) which are mounted on the pull rod (1) by threaded engagement, and the lower nut (3) and the upper nut (2) are respectively located at two ends of a bearing crossbeam (4).

6. A device for removing bolts from the bottom pivot holes of a ship lock miter door according to claim 5, characterized in that: The first lifting device (5) and the second lifting device (7) both use jacks.

7. A method for removing the bolts of the bottom pivot holes of a ship lock miter gate, characterized in that: The removal method is implemented by using a device for removing bolts from the bottom pivot holes of a ship lock miter door according to any one of claims 5 to 6, and comprises the following steps: Step 1, preliminary removal of the reamed hole bolts (9) to be removed: All dismantling devices are transported to the maintenance site, and the reaming bolt nut (12) on the head of the reaming bolt (9) to be dismantled is removed by using a heavy-duty percussion wrench; Step 2, dismantle the assembly of the device: One end of the tie rod (1) is fixedly mounted on the connecting threaded hole (10) through the connecting threaded hole (10), and the other end is firstly mounted with the lower nut (3), and then the bearing crossbeam (4) is passed through the tie rod (1), and finally the upper nut (2) is mounted, and the position of the bearing crossbeam (4) is preliminarily adjusted according to the height dimensions of the first jacking device (5) and the second jacking device (7), and then the position is locked; Step 3: Arrangement and installation of the first lifting device (5) and the second lifting device (7): The first jacking device (5) and the second jacking device (7) are arranged between the bottom pivot base (6) of the miter door and the bearing crossbeam (4); Step 4, lifting of the load-bearing beam (4): The first lifting device (5) and the second lifting device (7) are started, and the load-bearing crossbeam (4) is lifted by the first lifting device (5) and the second lifting device (7). During the lifting process of the load-bearing crossbeam (4), the pull rod (1) is driven, and the pull rod (1) drives the hinged hole bolt (9) to be removed to be separated from the bottom pivot base (6) of the miter door; Step 5, adjustment of lifting: After the first jacking device (5) and the second jacking device (7) reach the jacking limit position, a jacking cushion is installed between the first jacking device (5) and the second jacking device (7), and then steps 4 and 5 are repeated until the bolts (9) to be removed are completely removed; Step 6: Dismantling and recycling of the dismantling device: After the removal of the reaming hole bolt (9) from the bolt hole of the bottom pivot base (6) of the miter door is completed, the upper nut (2), the bearing crossbeam (4), the lower nut (3) and the pull rod (1) are removed in sequence.

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