A buffer and shock-absorbing cantilever main wheel for a hydraulic gate

Abstract

The present invention discloses a buffer and vibration damping cantilever main wheel for a hydraulic gate, which includes a shaft with a bearing connected to its end. An inner ring assembly is connected to the bearing, and an outer ring assembly that can move relative to it is connected to the outside of the inner ring assembly. A plurality of dampers are arranged between the inner ring assembly and the outer ring assembly. A plurality of arc-shaped grooves with corresponding numbers and positions are arranged on both the inner ring assembly and the outer ring assembly. The damper includes a female head and a male head arranged in the arc-shaped groove, and the heads of the male head and the female head are in an arc-shaped structure. A slot is arranged on the female head, and a plug that can be inserted into the slot is arranged on the male head. A spring is also arranged between the male head and the female head. The present invention provides a buffer and vibration damping cantilever main wheel for a low-head plane gate that is easy to install, convenient to maintain, reliable in operation, safe in use, and can effectively reduce and suppress the vibration of the gate.

Description

Technical Field

[0001] The invention relates to a hydraulic gate buffering and vibration reduction cantilever main wheel, belonging to the technical field of water conservancy engineering. Background Art

[0002] In water conservancy projects, gates are used to intercept water flow, adjust flow, control water level and discharge flood water. Plane gates are widely used in various hydraulic structures due to their compact layout, simple manufacturing, reliable operation and convenient maintenance.

[0003] During the operation of the gate, the existing main wheel bearing is usually a rigid structure, which may cause gate vibration under complex working conditions such as partial opening of the gate, turbulent river flow, external force impact and bad weather. Since the gate needs to withstand water pressure, the supporting travel device (main wheel) is the key part of the gate, which transmits the water pressure to the gate pier. The supporting travel device of the low-head flat gate with small load mostly adopts a cantilever main wheel with a spoke structure. The existing main wheel of this type has a rigid structure without damping function due to its bearing, so it is in rigid contact with the gate groove track. When the gate is opened to a certain degree and discharges water, the flooding water jump behind the gate and the surge caused by strong wind on the water surface will periodically impact the gate. Since it is necessary to ensure that the cantilever main wheel can move smoothly relative to the gate slot track, there is a certain gap between the two. When the gate is impacted, it will vibrate and shake. At this time, the cantilever main wheel in rigid contact continuously hits the gate slot track, aggravating the vibration of the gate, which will damage the gate itself on the one hand and the equipment connected to the gate on the other, thus affecting the stable operation of the entire engineering system. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a hydraulic gate buffering and vibration-damping cantilever main wheel, which is easy to install, convenient to maintain, reliable in operation, safe in use, and can effectively reduce and suppress gate vibration by using a bearing with a damping structure.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A hydraulic gate buffer vibration reduction cantilever main wheel, comprising a shaft with a bearing connected at the end, an inner ring assembly connected to the bearing, an outer ring assembly that can move relative to the inner ring assembly is connected to the inner ring assembly, and a plurality of dampers are arranged between the inner ring assembly and the outer ring assembly; a plurality of arc grooves corresponding in number and position are arranged on the inner ring assembly and the outer ring assembly, the damper comprises a female head and a male head arranged in the arc groove, and the heads of the male head and the female head are arc-shaped structures; a slot is arranged on the female head, a plug that can be inserted into the slot is arranged on the male head, and a spring is also arranged between the male head and the female head.

[0007] The aforementioned hydraulic gate buffering and vibration-reducing cantilever main wheel is characterized in that a damping rubber ring is arranged outside the outer ring component, wherein grooves are arranged on both sides of the outer surface of the outer ring component along its circumference, and toes that can be inserted into the grooves are arranged at both ends of the bottom of the damping rubber ring, and the outer surface of the damping rubber ring is a convex arc surface.

[0008] The aforementioned hydraulic gate buffering and vibration-damping cantilever main wheel is characterized in that a wire ring is arranged at the toe of the damping rubber ring, a plurality of nylon fiber cords are arranged at the edge and the center of the damping rubber ring, and a plurality of steel belt layers are arranged at the upper end of the damping rubber ring.

[0009] The aforementioned hydraulic gate buffer vibration reduction cantilever main wheel is characterized in that the slot of the female head is a cylindrical structure, the plug of the male head is a stepped shaft shape, and the shaft head length of the plug is consistent with the depth of the slot.

[0010] The aforementioned hydraulic gate buffer vibration reduction cantilever main wheel is characterized in that annular grooves are provided at the bottom of the female head and the male head, and the two ends of the spring are inserted into the corresponding annular grooves.

[0011] The aforementioned hydraulic gate buffer and vibration-damping cantilever main wheel is characterized in that the inner ring assembly includes a symmetrical left half inner ring and a right half inner ring, wing rings are arranged on both sides of the inner ring assembly, and the outer ring assembly can move radially between the two wing rings.

[0012] The aforementioned hydraulic gate buffer and vibration reduction cantilever main wheel is characterized in that an end cover is provided on the outer side of the left inner ring, and a transparent cover is provided on the outer side of the right inner ring. The end cover, the left inner ring, the right inner ring and the transparent cover are provided with multiple groups of bolt holes with corresponding positions, and locking bolts are provided in the bolt holes.

[0013] The aforementioned hydraulic gate buffer and vibration reduction cantilever main wheel is characterized in that: a first sealing ring is arranged between the end cover and the left inner ring, a second sealing ring is arranged between the right inner ring and the transparent cover, a third sealing ring is arranged at the connection between the left inner ring and the right inner ring, a sealing cover is also fixedly connected to the outside of the transparent cover, and a rubber oil seal is also arranged between the transparent cover and the sealing cover.

[0014] The beneficial effects of the present invention are:

[0015] 1. When the gate vibrates for various reasons, the main shaft can move radially within the gap between the inner ring and the outer ring as the spring alternately stretches or compresses, and the elastic force of the spring is used to make the bearing structure have the function of buffering and damping;

[0016] 2. When the main wheel is under the water, water will accumulate in the slot cavity of the female head. When the gate vibrates, the water will be squeezed out of the slot cavity from the gap between the male head and the female head when the male head is inserted into the slot. Similarly, when the male head exits the slot, water will be sucked into the slot cavity from the gap, thus playing a damping and vibration reduction role over and over again;

[0017] 3. The damping rubber ring is made of synthetic rubber, which can absorb the vibration of the gate, withstand extreme temperatures and strong friction, and has extremely high wear resistance; the internal multi-layer interwoven nylon fiber cord and steel belt layer enhance the strength, toughness and carrying capacity; the slightly convex surface of the cross section is reversely flattened by the gate groove track and squeezed to the toe (with a steel wire ring inside) when the main wheel transfers the gate load to the gate pier, so that the damping rubber ring is firmly stuck in the outer ring toe groove and is not easy to fall off;

[0018] 4. The cantilever main wheel of the present invention is innovatively modified on the basis of the ordinary spoke-type cantilever main wheel. It is simpler and more convenient in installation, disassembly, maintenance and modification. The parts can be maintained, repaired and replaced by removing the corresponding bolts. What is more valuable is that the newly built low-head flat gate can directly adopt the present invention, and the existing similar gates can also directly use the main wheel of the present invention while retaining the original wheel axle and bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first cross-sectional view of a main wheel of a hydraulic gate buffer vibration reduction cantilever under normal conditions of the present invention;

[0020] Figure 2 It is a first cross-sectional view of a hydraulic gate buffer vibration reduction cantilever main wheel under pressure in the present invention;

[0021] Figure 3 It is a second cross-sectional view of a main wheel of a hydraulic gate buffer vibration reduction cantilever under normal conditions of the present invention;

[0022] Figure 4 It is a second cross-sectional view of a hydraulic gate buffer vibration reduction cantilever main wheel under pressure of the present invention;

[0023] Figure 5 It is a cross-sectional view of a damping rubber ring of a main wheel of a hydraulic gate buffering and vibration reduction cantilever according to the present invention;

[0024] Figure 6 It is a first cross-sectional view of a hydraulic gate buffer vibration reduction cantilever main wheel of the present invention when a group of dampers are hidden in a normal state;

[0025] Figure 7 It is a second cross-sectional view of a hydraulic gate buffer vibration reduction cantilever main wheel of the present invention when a group of dampers are hidden in a normal state;

[0026] Figure 8 The present invention is a schematic structural diagram of a damper of a hydraulic gate buffer vibration reduction cantilever main wheel under normal conditions. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] like Figure 1-Figure 8 As shown, a hydraulic gate buffer vibration reduction cantilever main wheel includes a main shaft 20 connected to a bearing 14 at the end, an inner ring assembly is connected to the bearing 14, an outer ring assembly 9 that can move relative to the inner ring assembly is connected to the inner ring assembly, and a plurality of dampers are arranged between the inner ring assembly and the outer ring assembly 9; a plurality of arc grooves corresponding in number and position are arranged on the inner ring assembly and the outer ring assembly 9, and the damper includes a female head 8 and a male head 6 arranged in the arc groove, and the heads of the male head 6 and the female head 8 are arc-shaped structures; a slot 81 is arranged on the female head 8, a plug 61 that can be inserted into the slot 81 is arranged on the male head 6, and a spring 7 is also arranged between the male head 6 and the female head 8.

[0029] Under normal conditions, there is a certain radial movement gap between the inner ring assembly and the outer ring assembly 9, and the spring 7 is in a certain compression state. When the gate connected to the main wheel vibrates under complex working conditions such as partial opening, turbulent river flow, external force impact and bad weather, the main shaft 20 will transfer the pressure to the inner ring assembly through the bearing 14, so that the inner ring assembly moves radially relative to the outer ring assembly 9. During the movement, due to the presence of the spring 7, the bearing structure of the main wheel has a buffering and damping effect, thereby reducing the impact force between the outer ring and the gate groove track, and the vibration will be reduced accordingly.

[0030] The outer ring assembly 9 is provided with a damping rubber ring 10, wherein the outer surface of the outer ring assembly 9 is provided with a card slot on both sides along its circumference, and the bottom ends of the damping rubber ring 10 are provided with a toe opening 101 that can be inserted into the card slot, and the outer surface of the damping rubber ring 10 is a convex arc surface. A steel wire ring 102 is provided at the toe opening 101 of the damping rubber ring 10, and a plurality of nylon fiber cords 103 are provided at the edge and the center of the damping rubber ring 10, and a plurality of steel belt layers 104 are provided at the upper end of the damping rubber ring 10.

[0031] The damping rubber ring 10 is made of synthetic rubber. When the gate vibrates, it can absorb the vibration of the gate, and can withstand extreme temperatures and strong friction, and has extremely high wear resistance. The multiple layers of interwoven nylon fiber cords 103 and steel belt layers 104 inside enhance its strength, toughness and carrying capacity. The slightly convex surface of the cross section is reversely flattened by the gate groove track and squeezed to the toe (with a steel wire ring 102 inside) when the main wheel transfers the gate load to the gate pier, so that the damping rubber ring is firmly stuck in the outer ring toe groove and is not easy to fall off.

[0032] When the gate vibrates, the damping rubber ring 10 and the damper are used to perform damping and vibration reduction twice, thereby further ensuring the damping and vibration reduction effect.

[0033] In this embodiment, the inner ring assembly includes a symmetrical left half inner ring 4 and a right half inner ring 11, and wing rings are arranged on both sides of the inner ring assembly. The outer ring assembly 9 can only move radially between the two wing rings but not axially, so as to achieve axial limitation of the outer ring assembly 9. In addition, the slot 81 of the female head 8 is a cylindrical structure, the plug 61 of the male head 6 is in the shape of a stepped shaft, and the shaft head length of the plug 61 is consistent with the depth of the slot 81. When the shaft head of the male stepped shaft is fully inserted into the female head slot, the outer ring assembly 9 is also fully inserted between the two wing rings of the inner ring assembly, which can ensure the stability of the entire structure while playing a radial limiting role.

[0034] The outer diameter of the wing rings arranged on both sides of the inner ring assembly is larger than the inner diameter of the outer ring assembly 9. The wing rings can cover the radial movement gap between the inner ring assembly and the outer ring assembly 9 under any working conditions of the main wheel, and can prevent dirt such as mud and sand from entering the interior of the main wheel, avoiding affecting the service life and working performance of the damper, thereby ensuring the normal operation and safe operation of the main wheel.

[0035] In addition, when the main wheel is under the water surface, water will accumulate in the slot cavity of the female head. When the gate vibrates, as the shaft head of the male head is inserted into the slot of the female head, the water is squeezed out of the slot cavity from the gap between the two when the shaft head is pressed into the slot. Similarly, when the shaft head withdraws from the slot, the water is sucked into the slot cavity from the gap, thereby repeatedly playing a damping, buffering and vibration reduction role.

[0036] The bottom of the female head 8 and the male head 6 are both provided with an annular groove, and the two ends of the spring 7 are inserted into the corresponding annular grooves. The bottom cross section of the annular groove is arc-shaped, the notch is rounded, and the groove width is slightly larger than the diameter of the spring wire; the spring 7 is inserted into the annular groove, so that the spring is evenly stressed and firmly supported.

[0037] It should be noted that the inner ring assembly can move radially relative to the outer ring assembly 9 and can also rotate a certain amount to meet the change in the relative position between the two under pressure. After the force is balanced, it can gradually return to its initial state under the action of the spring.

[0038] An end cover 2 is arranged on the outer side of the left inner ring 4, and a transparent cover 16 is arranged on the outer side of the right inner ring 11. The end cover 2, the left inner ring 4, the right inner ring 11 and the transparent cover 16 are provided with a plurality of groups of bolt holes corresponding to the positions, and locking bolts 1 are arranged in the bolt holes. A first sealing ring 3 is arranged between the end cover 2 and the left inner ring 4, a second sealing ring 15 is arranged between the right inner ring 11 and the transparent cover 16, and a third sealing ring 5 is arranged at the connection between the left inner ring 4 and the right inner ring 11. A sealing cover 13 is also fixedly connected to the outer side of the transparent cover 16, and a rubber oil seal 17 is also arranged between the transparent cover 16 and the sealing cover 13.

[0039] In the present invention, the end cover, the left inner ring, the right inner ring, the outer ring and the transparent cover are connected into a whole by 8 sets of bolts distributed at equal intervals and then firmly installed on the bearing 14. At the same time, the first sealing ring 3, the second sealing ring 15, the third sealing ring 5 and the rubber oil seal 17 are used to complete the sealing of the bearing 14.

[0040] The assembly method of the hydraulic gate buffer vibration reduction cantilever main wheel of the present invention is as follows:

[0041] (1) Put the transparent cover 16, the sealing cover 13, the second sealing ring 15 and the rubber oil seal 17 onto the main shaft 20, and then connect the main shaft 20 to the bearing 14;

[0042] (2) Put the right inner ring 11 onto the bearing 14 and make it contact with the transparent cover 16;

[0043] (3) Put the outer ring assembly 9 onto the outside of the right inner ring 11, and put the compressed dampers one by one between the outer ring assembly 9 and the right inner ring 11;

[0044] (4) Install the left inner ring 4 and the third sealing ring 5 onto the bearing 14 and form an inner ring assembly with the right inner ring 11;

[0045] (5) Fix the end cover 2, the first sealing ring 3, the left inner ring 4, the right inner ring 11, and the transparent cover 16 to the bearing 14 using the locking bolts 1;

[0046] (6) Put the damping rubber ring 10 onto the outer ring assembly 9.

[0047] In summary, the hydraulic gate buffering and vibration-damping cantilever main wheel of the present invention provides a low-head plane gate buffering and vibration-damping cantilever main wheel that is easy to install, convenient to maintain, reliable in operation, and safe in use, and utilizes a bearing with a damping structure to effectively reduce and suppress gate vibration.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hydraulic gate buffer vibration reduction cantilever main wheel, characterized in that: It comprises a main shaft (20) having a bearing (14) connected at its end, the bearing (14) being connected to an inner ring assembly, the inner ring assembly being connected to an outer ring assembly (9) movable relative thereto, and a plurality of dampers being arranged between the inner ring assembly and the outer ring assembly (9); The inner ring component and the outer ring component (9) are both provided with a plurality of arc-shaped grooves of corresponding number and position, the damper comprises a female head (8) and a male head (6) arranged in the arc-shaped grooves, and the heads of the male head (6) and the female head (8) are arc-shaped structures, and the inner ring component can move radially relative to the outer ring component (9) and rotate relative to it; The female head (8) is provided with a slot (81), the male head (6) is provided with a plug (61) which can be inserted into the slot (81), and a spring (7) is further provided between the male head (6) and the female head (8); Furthermore, during the process of inserting the plug (61) of the male connector (6) into the slot (81) of the female connector (8), a process in which water is squeezed out of the slot (81) from the gap between the plug (61) and the slot (81) when the plug (61) is pressed into the slot (81), and a process in which water is sucked into the slot (81) from the gap between the plug (61) and the slot (81) when the plug (61) is withdrawn from the slot (81) both form a damping effect.

2. A hydraulic gate buffer vibration reduction cantilever main wheel according to claim 1, characterized in that: A damping rubber ring (10) is arranged outside the outer ring component (9), wherein grooves are arranged on both sides of the outer surface of the outer ring component (9) along its circumference, and toe openings (101) that can be inserted into the grooves are arranged at both ends of the bottom of the damping rubber ring (10), and the outer surface of the damping rubber ring (10) is a convex arc surface.

3. The hydraulic gate buffer vibration reduction cantilever main wheel according to claim 2, characterized in that: A steel wire ring (102) is provided at the toe (101) of the damping rubber ring (10), a plurality of nylon fiber cords (103) are provided at the edge and the center of the damping rubber ring (10), and a plurality of steel belt layers (104) are provided at the upper end of the damping rubber ring (10).

4. A hydraulic gate buffer vibration reduction cantilever main wheel according to any one of claims 1 to 3, characterized in that: The slot (81) of the female connector (8) is a cylindrical structure, the plug (61) of the male connector (6) is a stepped shaft shape, and the shaft head length of the plug (61) is consistent with the depth of the slot (81).

5. The hydraulic gate buffer vibration reduction cantilever main wheel according to claim 4, characterized in that: The bottoms of the female head (8) and the male head (6) are both provided with an annular groove, and the two ends of the spring (7) are inserted into the corresponding annular grooves.

6. A hydraulic gate buffer vibration reduction cantilever main wheel according to claim 5, characterized in that: The inner ring assembly comprises a symmetrical left half inner ring (4) and a right half inner ring (11), wing rings are arranged on both sides of the inner ring assembly, and the outer ring assembly (9) can move radially between the two wing rings.

7. A hydraulic gate buffer vibration reduction cantilever main wheel according to claim 6, characterized in that: An end cover (2) is arranged on the outer side of the left inner ring (4), and a transparent cover (16) is arranged on the outer side of the right inner ring (11). The end cover (2), the left inner ring (4), the right inner ring (11) and the transparent cover (16) are provided with a plurality of groups of bolt holes at corresponding positions, and locking bolts (1) are arranged in the bolt holes.

8. The hydraulic gate buffer vibration reduction cantilever main wheel according to claim 7, characterized in that: A first sealing ring (3) is provided between the end cover (2) and the left inner ring (4), a second sealing ring (15) is provided between the right inner ring (11) and the transparent cover (16), a third sealing ring (5) is provided at the connection between the left inner ring (4) and the right inner ring (11), a sealing cover (13) is fixedly connected to the outside of the transparent cover (16), and a rubber oil seal (17) is provided between the transparent cover (16) and the sealing cover (13).

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