A miter gate bottom pivot device

Abstract

The utility model provides a bottom pivot device of a miter gate, including an upper support assembly, a mushroom head, a mushroom head mounting plate and a bottom pivot seat, wherein the mushroom head mounting plate is detachably arranged on the bottom pivot seat, and the base at the lower end of the mushroom head is clamped and fixed by the cooperation of a first limiting retaining edge on the mushroom head mounting plate and a second limiting retaining edge on the bottom pivot seat; a spherical cavity is provided on the upper support assembly, and the ball head at the upper end of the mushroom head is arranged in the spherical cavity, so that the upper support assembly can rotate relative to the mushroom head. The bottom pivot device in the utility model greatly improves the convenience of gate fault inspection and repair. When inspecting the miter gate, it is only necessary to slightly lift the gate leaf, and the mushroom head can be easily disassembled by translating the mushroom head; at the same time, by arranging a sealing ring and a lubricating material, the problem that mud and sand easily enter the spherical cavity to cause wear and the bottom pivot device needs to be regularly lubricated with oil is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship locks, in particular to a bottom pivot device of a miter gate. Background Art

[0002] The miter gate is widely used in ship lock projects due to its many advantages such as simple force, small footprint, mature manufacturing and installation, long service life, and convenient operation and maintenance. With the rapid development of the national economy, ship transportation is becoming increasingly busy, the waterway level is constantly upgraded, and the operation of ship lock projects is becoming more and more frequent. As the working gate of the ship lock, the miter gate is opened and closed continuously throughout the year in the busy ship lock, which is also a comprehensive test of the overall quality of the miter gate.

[0003] The bottom pivot is the most complex operating component in the miter gate, and is the most prone to failure, with a very serious impact. It is a key component to ensure the normal operation of the miter gate. In the existing ship lock projects, it is not uncommon for the ship lock to be unplanned for maintenance due to the failure of the bottom pivot, which in turn causes certain social and economic impacts.

[0004] The working environment of the bottom pivot device is poor, with rapid water flow and mixed mud and sand. The constant rotation between the ball bearing and the mushroom head easily causes mud and sand to mix in, thereby wearing out the ball bearing, the mushroom head and other moving parts. When the bottom pivot device fails, maintenance is not convenient enough, and the mushroom head removal operation process is complicated. At the same time, conventional bottom pivot moving parts also need to be regularly oiled to maintain flexible operation, which results in major disadvantages in use.

[0005] In summary, there is an urgent need for a miter gate bottom hinge device to solve the problems existing in the prior art. Utility Model Content

[0006] The utility model aims to provide a miter gate bottom pivot device, aiming to solve the problems of the existing bottom pivot device, such as the complicated mushroom head removal process, the easy entry of mud and sand between the ball tile and the mushroom head causing wear, and the need for regular oiling and lubrication. The specific technical solution is as follows:

[0007] A bottom pivot device of a miter gate comprises an upper supporting assembly, a mushroom head, a mushroom head mounting plate and a bottom pivot seat, wherein the mushroom head mounting plate is detachably arranged on the bottom pivot seat, and the base at the lower end of the mushroom head is clamped and fixed by the cooperation of a first limiting rib on the mushroom head mounting plate and a second limiting rib on the bottom pivot seat; a spherical cavity is provided on the upper supporting assembly, and the ball head on the upper end of the mushroom head is arranged in the spherical cavity, so that the upper supporting assembly can rotate relative to the mushroom head.

[0008] Preferably in the above technical scheme, the mushroom head mounting plate includes a fixing portion and a pad portion, the first limiting rib is located at the junction of the fixing portion and the pad portion, and the base is arranged on the pad portion; a mounting position is provided on the bottom pivot seat, the pad portion is arranged in the mounting position, and one side of the mounting position is a second limiting rib opposite to the first limiting rib.

[0009] Preferably in the above technical solution, the shape and size of the pad portion are smaller than the shape and size of the mounting position.

[0010] Preferably in the above technical solution, the mushroom head mounting plate includes a fixing portion, and the first limiting rib is arranged on the fixing portion; a mounting position for placing the base is provided on the bottom pivot seat, and one side of the mounting position is a second limiting rib opposite to the first limiting rib.

[0011] Preferably in the above technical solution, the first limiting rib and the second limiting rib are symmetrically arranged.

[0012] Preferably in the above technical solution, the bottom pivot seat is fixed by an anchor assembly; the anchor assembly includes anchor rib one, a lap plate and anchor rib two, the anchor rib one and anchor rib two are respectively located on both sides of the lap plate and are fixedly connected to the lap plate, and the anchor rib one is used to be fixedly connected to the bottom pivot seat.

[0013] Preferably in the above technical scheme, the upper supporting assembly includes a bearing seat and a ball bushing, the ball bushing is arranged in the accommodating cavity of the bearing seat and the two are interference fit, the bearing seat is provided with an exhaust hole connected to the accommodating cavity, the exhaust hole is sealed by a sealing assembly, and the spherical cavity is provided on the ball bushing.

[0014] Preferably in the above technical solution, a plurality of limiting screw holes are provided at the joint between the bearing seat and the ball bushing, a part of the limiting screw holes is located on the bearing seat, and the remaining part is located on the ball bushing, and limiting bolts are screwed into the limiting screw holes to limit the relative movement between the bearing seat and the ball bushing.

[0015] Preferably in the above technical solution, a lubricating material is embedded in the inner wall of the spherical cavity.

[0016] Preferably in the above technical solution, a sealing ring is embedded in the lower part of the spherical cavity, and the sealing ring is used to seal the gap between the ball head and the inner wall of the spherical cavity.

[0017] The application of the technical solution of the utility model has the following beneficial effects:

[0018] The bottom pivot device in the utility model greatly improves the convenience of gate fault inspection and maintenance. When inspecting the miter gate, it is only necessary to slightly lift the gate leaf and conveniently remove the mushroom head by translating the mushroom head; lubricating material is embedded on the inner wall of the spherical cavity, and there is no need to regularly inject lubricating oil between the ball tile and the mushroom head, which ensures the flexibility of operation and reduces the complexity of maintenance; a sealing ring is embedded in the lower part of the spherical cavity to achieve a sealing effect between the ball tile and the ball head, ensuring that mud and sand will not mix into the ball head and the spherical cavity to cause abnormal wear, thereby improving the service life of the bottom pivot device; the bottom pivot device of the utility model optimizes the operation effect of the miter gate and avoids major social and economic impacts caused by unplanned closure of the lock.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 It is a cross-sectional view of the bottom pivot device of the miter gate of the utility model;

[0022] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 yes Figure 1 A schematic diagram of the structure of the midsole pivot seat;

[0024] Figure 4 yes Figure 1 Schematic diagram of the structure of the mushroom head mounting plate;

[0025] Figure 5 yes Figure 1 A half-section diagram of the middle ball tile;

[0026] Among them, 1. bearing seat, 1.1. exhaust hole, 2. ball bushing, 2.1. spherical cavity, 3. mushroom head, 3.1. ball head, 3.2. base, 4. mushroom head mounting plate, 4.1. fixing part, 4.2. pad part, 4.3. first limiting rib, 5. bottom pivot seat, 5.1. mounting position, 5.2. second limiting rib, 6. anchor assembly, 6.1. anchor rib one, 6.2. lap plate, 6.3. anchor rib two, 7. sealing ring, 8. limiting screw hole, 9. lubricating material. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below, and preferred embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] Example:

[0030] See also Figure 1-Figure 5 The present embodiment provides a miter gate bottom pivot device, specifically a ship lock miter gate bottom pivot device, comprising an upper support assembly, a mushroom head 3, a mushroom head mounting plate 4 and a bottom pivot seat 5, wherein the mushroom head mounting plate 4 is detachably arranged on the bottom pivot seat 5, and the base 3.2 at the lower end of the mushroom head 3 is clamped and fixed by the first limiting retaining edge 4.3 on the mushroom head mounting plate 4 and the second limiting retaining edge 5.2 on the bottom pivot seat 5; the upper support assembly is provided with a spherical cavity 2.1, and the spherical head 3.1 at the upper end of the mushroom head 3 is arranged in the spherical cavity 2.1, so that the upper support assembly can rotate relative to the mushroom head 3. During operation, the lower end of the gate is connected to the upper support assembly, and the bottom pivot device serves as the support point and rotation point of the lower end of the gate to ensure the normal opening and closing of the gate.

[0031] Regarding the mushroom head mounting plate 4, two structural forms are provided in this embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the first structural form of the mushroom head mounting plate is:

[0032] Specifically, the mushroom head mounting plate 4 includes a fixing portion 4.1 and a pad portion 4.2, the first limiting rib 4.3 is located at the junction of the fixing portion 4.1 and the pad portion 4.2, the base 3.2 is arranged on the pad portion 4.2, and the fixing portion 4.1 is used to be fixedly connected with the bottom pivot seat 5; a mounting position 5.1 is provided on the bottom pivot seat 5, the pad portion 4.2 is arranged in the mounting position 5.1, and one side of the mounting position 5.1 is a second limiting rib 5.2 opposite to the first limiting rib 4.3.

[0033] Preferably, the shape and size of the pad portion 4.2 are smaller than the shape and size of the mounting position 5.1, that is, the height dimension (i.e., the thickness dimension) of the pad portion is smaller than the height dimension of the mounting position (i.e., the height dimension of the second limit baffle in this embodiment), the length dimension of the pad portion is smaller than the maximum dimension from the first limit baffle to the second limit baffle after installation, and the width dimension of the pad portion is smaller than the width dimension of the mounting position, thereby ensuring that the pad portion can be smoothly inserted into the mounting position 5.1, and at the same time preventing the pad portion 4.2 from pressing against the second limit baffle, causing the first limit baffle 4.3 and the second limit baffle 5.2 to be unable to clamp and fix the base 3.2 of the mushroom head 3.

[0034] Under this structural form, the mushroom head is seated on the pad portion 4.2. After the gate is lifted up to disengage the spherical cavity and the ball head and the fastening bolts between the fixing portion and the bottom pivot seat are removed, the mushroom head can be pulled out together with the mushroom head mounting plate 4. Similarly, when installing the mushroom head, it can also be pushed into the mounting position 5.1 together with the mushroom head mounting plate 4, thereby improving the convenience of maintaining the bottom pivot device.

[0035] Furthermore, the second structural form of the mushroom head mounting plate 4 is:

[0036] The mushroom head mounting plate 4 includes a fixing portion 4.1, and the first limiting rib 4.3 is arranged on the fixing portion 4.1; the bottom pivot seat 5 is provided with a mounting position 5.1 for placing the base 3.2, and one side of the mounting position 5.1 is a second limiting rib 5.2 opposite to the first limiting rib 4.3.

[0037] In this structural form, the mushroom head mounting plate 4 does not have a pad portion 4.2, and the base 3.2 is directly located in the mounting position 5.1, and then is clamped and fixed by the first limiting rib 4.3 and the second limiting rib 5.2. This structural form can also achieve the effect of clamping and fixing the mushroom head, but in this structural form, the mushroom head 3 and the mushroom head mounting plate 4 cannot be pulled out or pushed in together, so its maintenance convenience is slightly worse than that of the first structural form.

[0038] Preferably, in either the first or second structural form, the first limiting rib 4.3 and the second limiting rib 5.2 are symmetrically arranged; further preferably, the first limiting rib and the second limiting rib may be in an arc shape matching the base, or in a V shape; of course, if the base is a square structure, the first limiting rib and the second limiting rib may also be in a straight plate shape or a straight strip shape, etc. It is understandable that those skilled in the art may change and adjust the structural forms of the first limiting rib and the second limiting rib to ensure that the base of the mushroom head can be clamped and fixed.

[0039] Preferably, a hoisting hole is provided on the base of the mushroom head to facilitate hoisting and carrying of the mushroom head.

[0040] See also Figure 1 , the bottom pivot seat 5 is fixed by an anchor assembly 6; the anchor assembly 6 includes an anchor bar 1 6.1, a lap plate 6.2 and an anchor bar 2 6.3, the anchor bar 1 6.1 and the anchor bar 2 6.3 are respectively located on both sides of the lap plate 6.2 and are fixedly connected to the lap plate 6.2, and the anchor bar 1 6.1 is used to be fixedly connected to the bottom pivot seat 5. The anchor bar 2 6.3 is anchored with the first-stage concrete pouring, and the lap plate 6.2, the anchor bar 1 6.1 and the bottom pivot seat 5 are anchored with the second-stage concrete pouring, wherein the lap plate serves as a transition between the anchor bar 1 and the anchor bar 2, which can reduce the accuracy requirements for the installation position of the anchor bar 2 6.3 and offset the position error between the anchor bar 1 and the anchor bar 2.

[0041] See also Figure 1 and Figure 2 The upper support assembly includes a bearing seat 1 and a ball bushing 2. The ball bushing 2 is arranged in the accommodating cavity of the bearing seat 1 and the two are interference fit. The bearing seat 1 is provided with an exhaust hole 1.1 connected to the accommodating cavity. The exhaust hole 1.1 is sealed by a sealing assembly. The ball bushing 2 is provided with the spherical cavity 2.1. Specifically, the exhaust hole 1.1 is used to exhaust the gas in the bearing seat 1 when the ball bushing is assembled to ensure that the ball bushing is smoothly assembled into the bearing seat; after the ball bushing is assembled, the exhaust hole is sealed with bolts and sealing gaskets to prevent debris and rainwater from entering between the ball bushing and the bearing seat through the exhaust hole, affecting the stability of the assembly between the two.

[0042] See also Figure 1 , Figure 2 and Figure 5 A plurality of limiting screw holes 8 are provided between the bearing seat 1 and the ball bushing 2, that is, the plurality of limiting screw holes 8 are arranged along the joint between the bearing seat and the ball bushing, a part of the limiting screw hole 8 is located on the bearing seat 1, and the remaining part is located on the ball bushing 2, and limiting bolts are screwed into the limiting screw holes 8 to limit the relative movement between the bearing seat 1 and the ball bushing 2, thereby ensuring that the upper supporting assembly acts as an integral structure during the operation of the gate, and preventing wear caused by the relative movement between the ball bushing and the bearing seat.

[0043] See also Figure 2 The inner wall of the spherical cavity 2.1 is embedded with a lubricating material 9, and the lubricating material 9 is used to ensure the smooth rotation between the mushroom head and the upper support assembly; at the same time, the lubricating material 9 is embedded on the inner wall of the spherical cavity, and there is no need to inject lubricating oil into the spherical cavity for maintenance later, which reduces the complexity of maintenance. Preferably, the lubricating material 9 is a solid lubricating material, specifically a graphite material.

[0044] See also Figure 1 , Figure 2 and Figure 5 The lower part of the spherical cavity 2.1 is embedded with a sealing ring 7, which is used to seal the gap between the ball head 3.1 and the inner wall of the spherical cavity 2.1. The sealing ring 7 will rotate with the spherical cavity (i.e., the upper support assembly) relative to the ball head 3.1, and achieve a sealing effect at the same time; this structure can prevent mud and sand from entering the ball head and the spherical cavity to cause wear, extend the service life of the bottom pivot device, and no end plate is required to fix the sealing ring, and the structure is simpler.

[0045] Preferably, the ball bushing in this embodiment is made of copper-based alloy; the mushroom head in this embodiment is forged from pure stainless steel, which avoids the difficulty of surface welding of stainless steel compared to the manufacturing process of the mushroom head in the prior art (the traditional mushroom head often uses forgings and surface welding of stainless steel treatment process).

[0046] The bottom pivot device in this embodiment greatly improves the convenience of gate fault inspection and maintenance. When inspecting the miter gate, it is only necessary to slightly lift the gate leaf and conveniently remove the mushroom head by translating the mushroom head. Lubricating material is embedded on the inner wall of the spherical cavity, and there is no need to regularly inject lubricating oil between the ball shoe and the mushroom head, which ensures the flexibility of operation and reduces the complexity of maintenance. A sealing ring is embedded in the lower part of the spherical cavity to achieve a sealing effect between the ball shoe and the ball head, ensuring that mud and sand will not mix into the ball head and the spherical cavity to cause abnormal wear, thereby improving the service life of the bottom pivot device. The bottom pivot device optimizes the operation effect of the miter gate and avoids major social and economic impacts caused by unplanned closure of the lock.

[0047] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A miter gate bottom pivot device, characterized in that: The invention comprises an upper support assembly, a mushroom head (3), a mushroom head mounting plate (4) and a bottom pivot seat (5); the mushroom head mounting plate (4) is detachably arranged on the bottom pivot seat (5); a base (3.2) at the lower end of the mushroom head (3) is clamped and fixed by a first limiting rib (4.3) on the mushroom head mounting plate (4) and a second limiting rib (5.2) on the bottom pivot seat (5); a spherical cavity (2.1) is provided on the upper support assembly; the spherical head (3.1) at the upper end of the mushroom head (3) is arranged in the spherical cavity (2.1), so that the upper support assembly can rotate relative to the mushroom head (3).

2. The miter gate bottom pivot device according to claim 1, characterized in that: The mushroom head mounting plate (4) comprises a fixing portion (4.1) and a pad portion (4.2); the first limiting rib (4.3) is located at the junction of the fixing portion (4.1) and the pad portion (4.2); the base (3.2) is arranged on the pad portion (4.2); a mounting position (5.1) is provided on the bottom pivot seat (5); the pad portion (4.2) is arranged in the mounting position (5.1); and one side of the mounting position (5.1) is a second limiting rib (5.2) opposite to the first limiting rib (4.3).

3. The miter gate bottom pivot device according to claim 2, characterized in that: The shape and size of the pad portion (4.2) are smaller than the shape and size of the installation position (5.1).

4. The miter gate bottom pivot device according to claim 1, characterized in that: The mushroom head mounting plate (4) comprises a fixing portion (4.1), and the first limiting rib (4.3) is arranged on the fixing portion (4.1); the bottom pivot seat (5) is provided with a mounting position (5.1) for accommodating the base (3.2), and one side of the mounting position (5.1) is a second limiting rib (5.2) opposite to the first limiting rib (4.3).

5. The miter gate bottom pivot device according to claim 1, characterized in that: The first limiting rib (4.3) and the second limiting rib (5.2) are symmetrically arranged.

6. The miter gate bottom pivot device according to claim 1, characterized in that: The bottom pivot seat (5) is fixed by an anchor assembly (6); the anchor assembly (6) comprises an anchor rib (6.1), a lap plate (6.2) and an anchor rib (6.3); the anchor rib (6.1) and the anchor rib (6.3) are respectively located on both sides of the lap plate (6.2) and are both fixedly connected to the lap plate (6.2); the anchor rib (6.1) is used for being fixedly connected to the bottom pivot seat (5).

7. The miter gate bottom pivot device according to claim 1, characterized in that: The upper support assembly comprises a bearing seat (1) and a ball bushing (2); the ball bushing (2) is arranged in a receiving cavity of the bearing seat (1) and the two are interference fit; the bearing seat (1) is provided with an exhaust hole (1.1) connected to the receiving cavity; the exhaust hole (1.1) is sealed by a sealing assembly; and the ball bushing (2) is provided with the spherical cavity (2.1).

8. The miter gate bottom pivot device according to claim 7, characterized in that: A plurality of limiting screw holes (8) are provided at the joint between the bearing seat (1) and the ball bushing (2); a portion of the limiting screw holes (8) is located on the bearing seat (1), and the remaining portion is located on the ball bushing (2); limiting bolts are screwed into the limiting screw holes (8) to limit the relative movement between the bearing seat (1) and the ball bushing (2).

9. The miter gate bottom pivot device according to any one of claims 1 to 8, characterized in that: The inner wall of the spherical cavity (2.1) is embedded with lubricating material (9).

10. The miter gate bottom pivot device according to any one of claims 1 to 8, characterized in that: A sealing ring (7) is embedded in the lower part of the spherical cavity (2.1), and the sealing ring (7) is used to seal the gap between the ball head (3.1) and the inner wall of the spherical cavity (2.1).

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