Sector gate and gate group with multiple cylinders pulled by single station

Abstract

The fan-shaped gate comprises a gate body, a fan-shaped gate plate and a linear driving mechanism, a connecting piece and a cross bar are arranged on the two sides of the gate body, the connecting piece extends towards the end away from the gate body, the first end of the connecting piece is connected with the gate body, and the second end of the connecting piece is connected with the cross bar. The cross bar is arranged between the two connecting pieces, the cross bar is adjacent to the second ends of the connecting pieces, the fan-shaped gate plate is pivotally connected with the gate body through a rotating shaft, one end of the linear driving mechanism is arranged on the cross bar, and the other end of the linear driving mechanism is arranged on the gate body. The output end of the linear driving mechanism is pivotally connected with the fan-shaped gate plate to drive the fan-shaped gate plate to rotate relative to the gate body, and an included angle is formed between the extending direction of the linear driving mechanism and the extending direction of the connecting piece. The sector gate has the advantages of being simple in structure, high in reliability and convenient to maintain.

Description

Technical Field

[0001] The present invention relates to the technical field of mining equipment, and particularly relates to a sector gate and a gate group with a single station dragging multiple cylinders. Background Art

[0002] Sector gates are common equipment in coal mines, mainly used at the lower part of underground coal bunkers, lump coal bunkers, fine coal bunkers and gangue bunkers in coal preparation plants, or for docking coal feeders to complete the feeding task of the stored materials in the bunker. Common sector gates include forms such as double electro-hydraulic cylinders driven on both sides and single electro-hydraulic cylinder driven on one side. Although the sector gates driven in the above forms can meet the daily production requirements, they have disadvantages such as asynchronous driving, high price, difficult maintenance, easy damage, and high equipment cost. In the case of two-side driving, there is a problem of unbalanced cylinders due to different tension amounts of the cylinders, and if any one of the two cylinders fails, the entire sector gate will not work, so the failure rate is relatively high. When driving on one side, the force on the entire gate is uneven, and the gate is prone to deformation, resulting in a high damage rate of the gate. Summary of the Invention

[0003] The present invention is based on the inventor's discovery and recognition of the following facts and problems: the force on the two-side cylinders is unbalanced. The present invention aims to solve at least one of the technical problems in the related art to a certain extent. For this purpose, an embodiment of the present invention provides a sector gate, which has the advantages of simple structure, high reliability and easy maintenance.

[0004] The sector gate according to an embodiment of the present invention includes a gate body, a sector gate plate and a linear driving mechanism. Connecting pieces and crossbars are arranged on both sides of the gate body. The connecting pieces extend towards the end far from the gate body. The first end of the connecting piece is connected to the gate body. The crossbar is arranged between the two connecting pieces and is adjacent to the second end of the connecting piece. The sector gate plate is pivotally connected to the gate body through a rotating shaft. One end of the linear driving mechanism is arranged on the crossbar, and the output end of the linear driving mechanism is pivotally connected to the sector gate plate to drive the sector gate plate to rotate relative to the gate body. There is an included angle between the extending direction of the linear driving mechanism and the extending direction of the connecting piece.

[0005] The sector gate according to an embodiment of the present invention has a simple structure, high reliability and is easy to maintain. This application has the following advantages: by adopting a single linear driving mechanism, the number of driving mechanisms is reduced, the cost is lowered, and the cooperation structure of the crossbar and the connecting piece is simple and convenient for maintenance.

[0006] In some embodiments, the connecting pieces are symmetrical about the gate body, and the linear driving mechanism is located at the center of the crossbar.

[0007] In some embodiments, the linear drive mechanism is any one of a hydraulic cylinder, a pneumatic cylinder, an electric push rod, a ball screw, or a linear motor.

[0008] In some embodiments, the included angle between the extension direction of the linear drive mechanism and the extension direction of the connecting member is an acute angle.

[0009] In some embodiments, the sector gate further includes a reinforcing rib, which is arranged on the connecting member along the length direction of the connecting member to increase the structural strength of the connecting member.

[0010] In some embodiments, the sector gate further includes a reinforcing rod. One end of the reinforcing rod is connected to the connecting member, and the other end of the reinforcing rod is connected to the gate body. The reinforcing rod, the connecting member, and the gate body form a triangular structure.

[0011] In some embodiments, a chute is provided on the side surface of the connecting member, and both ends of the cross bar slide in the chutes of the connecting members on both sides respectively to change the position of the cross bar relative to the connecting member.

[0012] In some embodiments, the sector gate further includes a limit block. A limit rod is threadedly connected to the limit block. The limit block is slidably connected to the chute. The limit block is used to clamp the end of the cross bar, and the limit rod abuts against the chute to fix the limit block.

[0013] In some embodiments, the sector gate further includes a buffer member. The buffer member is arranged on the cross bar. The linear drive mechanism is connected to the buffer member, and the buffer member is used to reduce the impact.

[0014] The gate group of single-station towing multiple cylinders according to the embodiment of the present invention. The gate group of single-station towing multiple cylinders includes a plurality of sector gates, a hydraulic pump station, and an electric control box. The sector gate is a sector gate. The linear drive mechanism of the sector gate is an oil cylinder. The hydraulic pump station has an inlet pipe and a return pipe. The inlet pipe is connected to a plurality of the oil cylinders through a multi-way valve for supplying liquid, and the return pipe is connected to a plurality of the oil cylinders through a multi-way valve. The electric control box is electrically connected to the hydraulic pump station to supply power to the hydraulic pump station. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a top view schematic diagram of the sector gate according to the embodiment of the present invention.

[0016] Figure 2 is a structural schematic diagram of the sector gate according to the embodiment of the present invention.

[0017] Figure 3 is a structural schematic diagram of the gate group of single-station towing multiple cylinders according to the embodiment of the present invention.

[0018] Reference numerals: 1, gate body; 2, sector gate plate; 3, linear drive mechanism; 4, connecting piece; 5, cross bar; 6, reinforcing rod; 7, hydraulic pump station; 8, electric control box; 9, four-way valve. Specific embodiments

[0019] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0020] The sector gate of the embodiment of the present invention includes a gate body 1, a sector gate plate 2 and a linear drive mechanism 3. Connecting pieces 4 and cross bars 5 are arranged on both sides of the gate body 1. The connecting piece 4 extends towards the end away from the gate body 1. The first end of the connecting piece 4 is connected to the gate body 1. The cross bar 5 is arranged between the two connecting pieces 4. The cross bar 5 is adjacent to the second end of the connecting piece 4. The sector gate plate 2 is pivotally connected to the gate body 1 through a rotating shaft. One end of the linear drive mechanism 3 is arranged on the cross bar 5, and the output end of the linear drive mechanism 3 is pivotally connected to the sector gate plate 2 to drive the sector gate plate 2 to rotate relative to the gate body 1. There is an included angle between the extending direction of the linear drive mechanism 3 and the extending direction of the connecting piece 4. The cooperation of the connecting piece 4 and the cross bar 5 provides an installation position for the linear drive mechanism 3. Arranging the linear drive mechanism 3 on the cross bar 5 can drive the sector gate plate 2 to move relative to the gate body 1.

[0021] In some embodiments, the connecting piece 4 is symmetric about the gate body 1, and the linear drive mechanism 3 is located at the center of the cross bar 5.

[0022] Specifically, arranging the connecting pieces 4 on both sides of the gate body 1 can make the whole structure more evenly stressed, avoiding deformation and shaking caused by asymmetric stress. Arranging the linear drive mechanism 3 at the center of the cross bar 5 can make the cross bar 5 more evenly stressed, and at the same time avoid wear and failure of the driven sector gate plate 2 due to eccentric stress.

[0023] Optionally, the shape of the connecting piece 4 is designed as a variable cross-section structure. The cross-sectional area of the part of the connecting piece 4 close to the gate body 1 is larger, and the cross-sectional area of the part away from the gate body 1 gradually decreases, so as to reduce the overall weight while ensuring the structural strength and reducing the influence of the weight of the connecting piece 4 on the gate body 1.

[0024] In some embodiments, the linear drive mechanism 3 is any one of a hydraulic cylinder, a pneumatic cylinder, an electric push rod, a ball screw or a linear motor.

[0025] Specifically, the function of the linear drive mechanism 3 is to reciprocate in a linear direction to drive the sector gate 2 to move relative to the gate body 1. Selecting a hydraulic cylinder can achieve a large load capacity, enabling high-precision opening and closing of the large sector gate 2. At the same time, the hydraulic cylinder has a simple structure, high reliability, and stable output force, enabling the stable movement of the sector gate 2.

[0026] In some embodiments, the included angle between the extending direction of the linear drive mechanism 3 and the extending direction of the connecting member 4 is an acute angle.

[0027] Specifically, the extending direction of the linear drive mechanism 3 is its advancing direction, and the extending direction of the connecting member 4 is its own length direction. When the included angle between the two is an acute angle, the component force of the linear drive mechanism 3 acting on the sector gate 2 is greater, improving the opening and closing efficiency. The triangular structure formed by the linear drive mechanism 3, the connecting member 4, and the gate body 1 can increase the structural stability. It can be understood that the angle range of the acute angle can be between 30° and 60°, and the driving effect of the linear drive mechanism 3 is the best.

[0028] In some embodiments, the sector gate further includes a reinforcing rib, which is arranged on the connecting member 4 along the length direction of the connecting member 4 to increase the structural strength of the connecting member 4.

[0029] Specifically, the reinforcing rib is arranged in the length direction of the connecting member 4. The reinforcing rib changes the cross-sectional shape of the connecting member 4, increases the structural strength of the connecting member 4, extends the service life of the equipment, and the reinforcing rib can be arranged at the connection between the connecting member 4 and the gate body 1 to further improve the structural strength.

[0030] In some embodiments, the sector gate further includes a reinforcing rod 6. One end of the reinforcing rod 6 is connected to the connecting member 4, and the other end of the reinforcing rod 6 is connected to the gate body 1. The reinforcing rod 6, the connecting member 4, and the gate body 1 form a triangular structure.

[0031] Specifically, the extending direction of the reinforcing rod 6 intersects with the extending direction of the connecting member 4. The triangular structure formed by the reinforcing rod 6 between the connecting member 4 and the gate body 1 can further improve the structural stability of the connecting member 4. The reinforcing rod 6 can reduce the deformation and bending of the connecting plate. The reinforcing rod 6 is obliquely arranged relative to the connecting member 4, which can better withstand the force transmitted by the linear drive mechanism 3 and improve the equipment stability. There can be multiple reinforcing rods 6, forming multiple triangular structures to greatly enhance the structural stability of the equipment.

[0032] In some embodiments, a chute is provided on the side surface of the connecting member 4, and both ends of the cross bar 5 slide in the chutes of the connecting members 4 on both sides respectively to change the position of the cross bar 5 relative to the connecting member 4.

[0033] Specifically, a chute is arranged on the side of the connecting member 4 to allow the cross bar 5 to move relative to the connecting member 4, which can change the position of the linear drive mechanism 3 relative to the gate body 1. Flexibly adjusting the position of the cross bar 5 can adapt to different working states, improving the flexibility of the equipment. At the end of the connecting member 4 away from the gate body 1, a baffle can also be arranged to prevent the cross bar 5 from slipping out of the chute.

[0034] In some embodiments, the sector gate further includes a limit block. A limit rod is threadedly connected to the limit block. The limit block is slidably connected to the chute. The limit block is used to clamp the end of the cross bar 5, and the limit rod abuts against the chute to fix the limit block.

[0035] Specifically, the limit block can slide in the chute. A limit block is arranged on each side of the chute for the cross bar. The two limit blocks are used to clamp and fix the cross bar 5, which can better restrict the movement of the cross bar 5. The limit rod is provided with threads, and the limit block is provided with a threaded hole with internal threads. The limit rod is threadedly connected to the limit block. Rotate the limit rod until it abuts against the chute. The limit rod can prevent the limit block from moving relative to the chute to complete the locking of the limit block, and the position of the cross bar 5 can be accurately fixed to effectively restrict its movement in the chute.

[0036] In some embodiments, the sector gate further includes a buffer member. The buffer member is arranged on the cross bar 5. The linear drive mechanism 3 is connected to the buffer member. The buffer member is used to reduce the impact.

[0037] Specifically, the buffer member can be a pneumatic buffer, a spring buffer, etc. The buffer member absorbs the impact energy from the linear drive mechanism 3 through elastic deformation, compressed air, etc., reducing the impact of the linear drive mechanism 3 on the cross bar 5, protecting the cross bar 5, being able to effectively absorb the impact force generated during the opening and closing process, reducing the vibration and sway of the system, and improving the running stability of the sector gate. By absorbing the impact force, the buffer member can reduce the damage to the drive mechanism, the connecting member 4 and the gate body 1, reduce the risk of fatigue damage to the system, and extend the service life of the system.

[0038] Optionally, the buffer member can also be a rubber pad or a spring gasket. The rubber pad or the spring gasket is used to buffer the small vibrations and impacts that may occur during the opening and closing process, reducing the rigid contact between the linear drive mechanism 3 and the cross bar 5.

[0039] In some embodiments, a torque sensor and a limit switch are arranged at the connection between the linear drive mechanism 3 and the sector gate plate 2. The torque sensor can monitor the torque change and the position of the gate plate in real time during the opening and closing process. When abnormal torque (such as jamming) or gate plate position deviation is detected, an emergency stop or reverse operation is automatically triggered to prevent equipment damage and safety accidents. After adding the torque sensor and the limit switch, the safety and reliability of the equipment are significantly improved, and safety accidents caused by mechanical failures or operation errors can be effectively prevented.

[0040] In the embodiment of the present invention, the gate group with a single station towing multiple cylinders includes multiple sector gates, a hydraulic pump station 7, and an electric control box 8. The sector gates are sector-shaped, and the linear drive mechanism 3 of the sector gates is an oil cylinder. The hydraulic pump station 7 has a liquid inlet pipe and a liquid return pipe. The liquid inlet pipe is connected to multiple oil cylinders through a multi-way valve for liquid supply, and the liquid return pipe is connected to multiple oil cylinders through a multi-way valve. The electric control box 8 is electrically connected to the hydraulic pump station 7 to supply power to the hydraulic pump station 7.

[0041] A single hydraulic pump station 7 can simultaneously control the operation of multiple oil cylinders to drive the opening and closing of the sector gates. The multi-way valve can be a four-way valve or a three-way valve, etc. Precise control of the flow direction and flow rate of the hydraulic oil is achieved through the electric control box 8. The multi-way valve can automatically adjust the distribution of the hydraulic oil according to the opening and closing requirements of different sector gates to achieve independent control, synchronous control, or group control. A pressure compensator can also be set to adjust the output pressure according to the load of a single sector gate to maintain the stability of the system.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0046] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present invention.

Claims

1. A fan-shaped gate, characterized in that: include: A gate body, wherein connecting pieces and cross bars are arranged on both sides of the gate body, the connecting pieces extend to one end away from the gate body, a first end of the connecting piece is connected to the gate body, the cross bar is arranged between the two connecting pieces, and the cross bar is adjacent to the second end of the connecting piece; A fan-shaped gate plate, the fan-shaped gate plate is pivotally connected to the gate body via a rotating shaft; A linear drive mechanism, one end of which is arranged on a horizontal bar, an output end of which is pivotally connected to the fan-shaped gate plate to drive the fan-shaped gate plate to rotate relative to the gate body, and an angle exists between an extension direction of the linear drive mechanism and an extension direction of the connecting member.

2. The sector gate according to claim 1, characterized in that: The connecting member is symmetrical with respect to the gate body, and the linear drive mechanism is located at the center of the cross bar.

3. The sector gate according to claim 2, characterized in that: The linear drive mechanism is any one of a hydraulic cylinder, a pneumatic cylinder, an electric push rod, a ball screw or a linear motor.

4. The sector gate according to claim 2, characterized in that: An angle between an extension direction of the linear drive mechanism and an extension direction of the connecting member is an acute angle.

5. The sector gate according to claim 1, characterized in that: It also includes reinforcing ribs, which are arranged on the connecting member along the length direction of the connecting member to increase the structural strength of the connecting member.

6. The sector gate according to claim 1, characterized in that: It also includes a reinforcing rod, one end of which is connected to the connecting piece, and the other end of which is connected to the gate body. The reinforcing rod, the connecting piece and the gate body form a triangular structure.

7. The sector gate according to claim 1, characterized in that: A sliding groove is arranged on the side of the connecting member, and the two ends of the cross bar slide in the sliding grooves of the connecting member on both sides respectively to change the position of the cross bar relative to the connecting member.

8. The sector gate according to claim 7, characterized in that: It also includes a limit block, a limit rod is threadedly connected to the limit block, the limit block is slidably connected to the slide slot, the limit block is used to clamp the end of the cross bar, and the limit rod abuts against the slide slot to fix the limit block.

9. The sector gate according to claim 1, characterized in that: It also includes a buffer component, which is arranged on the cross bar, and the linear drive mechanism is connected to the buffer component, and the buffer component is used to mitigate impact.

10. A gate group with multiple cylinders in a single station, characterized in that: A plurality of fan-shaped gates, wherein the fan-shaped gates are the fan-shaped gates as claimed in claim 1, and the linear drive mechanism of the fan-shaped gates is an oil cylinder; A hydraulic pump station, wherein the hydraulic pump station has a liquid inlet pipe and a liquid return pipe, wherein the liquid inlet pipe is connected to the plurality of oil cylinders through a multi-way valve for supplying liquid, and the liquid return pipe is connected to the plurality of oil cylinders through a multi-way valve; An electric control box is electrically connected to the hydraulic pump station to supply power to the hydraulic pump station.

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