Fully-sealed electro-hydraulic sector gate

Abstract

The utility model discloses a fully-sealed electro-hydraulic fan-shaped gate which comprises a fan-shaped gate plate arranged in a chute box body, a sealing protruding part protruding outwards is arranged on the portion, corresponding to the fan-shaped gate plate, of one side wall of the chute box body, and a receding cavity is formed in the portion, located at the sealing protruding part, in the chute box body. The fan-shaped gate plate is rotationally connected to the discharge port of the chute box body through a transmission shaft, the two ends of the transmission shaft penetrate through the chute box body, an electro-hydraulic driving mechanism capable of driving the transmission shaft to rotate is arranged on the outer wall of the chute box body, and the fan-shaped gate plate rotates into the receding cavity when being opened; a wear-resistant lining plate is fixedly arranged on the fan-shaped material blocking surface of the fan-shaped gate; the utility model has the advantages of good sealing effect, capability of ensuring no leakage of dust, good environmental protection performance, simple and reasonable structure, low manufacturing cost, stable and reliable operation and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of fan-shaped gates, in particular to a fully sealed electro-hydraulic dynamic fan-shaped gate. Background Art

[0002] Electro-hydraulic sector gates are widely used in metallurgy, mining, electric power, machinery, cement, chemical industry, water conservancy and other industries. They are used to control the flow and delivery volume of bulk materials such as powder, granular materials and small pieces of materials. They are also ideal equipment for controlling large flow changes, frequent startups and rapid cutoffs. Patent publication number CN103253505A discloses an electro-hydraulic chute unloading device, which specifically discloses an arc flap provided on the outer wall of the sector gate. The arc flap is driven by an electro-hydraulic push rod to rotate to realize the opening and closing of the sector gate. However, due to the large gap between the arc flap and the outer wall of the sector gate, there is a poor sealing effect, a large amount of dust will leak out, poor environmental performance, and a complex structure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a fully sealed electro-hydraulic dynamic fan-shaped gate with good sealing effect, which can ensure that dust does not leak out, has good environmental performance, simple and reasonable structure, low manufacturing cost, stable and reliable operation, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully sealed electro-hydraulic fan-shaped gate, comprising a fan-shaped gate plate arranged in a chute box body, a sealing protrusion protruding outward is arranged on one side wall of the chute box body at the position corresponding to the fan-shaped gate plate, and a clearance cavity is arranged in the chute box body at the sealing protrusion; the fan-shaped gate plate is rotatably connected to the discharge port of the chute box body through a transmission shaft, both ends of the transmission shaft pass through the chute box body, an electro-hydraulic drive mechanism that can drive the transmission shaft to rotate is arranged on the outer wall of the chute box body, and the fan-shaped gate plate rotates to the clearance cavity when it is opened; a wear-resistant lining is fixedly arranged on the fan-shaped blocking surface of the fan-shaped gate plate.

[0005] Furthermore, the electro-hydraulic drive mechanism includes a crank fixedly connected to the end of the transmission shaft, and the swing end of the crank is movably connected to an electro-hydraulic push rod, and the electro-hydraulic push rod is movably connected to the outer wall of the chute box body through a connecting seat.

[0006] Furthermore, a bearing chamber is provided at the connection between the outer side wall of the chute box body and the transmission shaft, the transmission shaft is rotatably connected to the bearing chamber through a bearing, and a sealing ring is also provided in the bearing chamber for rotational sealing with the transmission shaft.

[0007] Furthermore, a maintenance opening is provided on a side wall of the chute box corresponding to the fan-shaped gate plate, a sealing end plate is fixedly connected to the maintenance opening, and an observation window is also provided on the sealing end plate.

[0008] Furthermore, the chute box is an inclined funnel structure.

[0009] Furthermore, the fan-shaped blocking surface of the fan-shaped gate plate is an arc-shaped structure, and the wear-resistant lining plate is an integrated arc plate structure.

[0010] Furthermore, the fan-shaped blocking surface of the fan-shaped gate plate is a polygonal arch structure, and the wear-resistant lining plate is composed of a plurality of independent lining blocks, and each lining block of the wear-resistant lining plate is in contact with the fan-shaped blocking surface of the fan-shaped gate plate and is fixed to each other.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the fully sealed electro-hydraulic sector gate, the sector gate plate is arranged in the chute box, the chute box is provided with a make way cavity for accommodating the sector gate plate, and the transmission shaft is rotationally sealed through the bearing chamber and the sealing ring arranged inside, and the chute box is sealed as a whole, which can ensure that dust does not leak out, has good sealing effect, good environmental protection performance, simple and reasonable structure, low manufacturing cost, stable and reliable operation; the sector-shaped blocking surface of the sector gate plate is an arc-shaped structure, which can effectively disperse the impact of materials and can withstand greater warehouse pressure; the wear-resistant lining is easy to manufacture, has low manufacturing cost, and is easy to repair and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the fan-shaped gate of the utility model when it is closed;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model when the fan-shaped gate is fully opened;

[0015] Figure 4 This is a side view of the interior of the chute box of the utility model;

[0016] Figure 5 This is a schematic diagram of the internal structure of the bearing chamber of the utility model;

[0017] Figure 6 This is a schematic diagram of the fan-shaped gate structure of the first embodiment of the utility model;

[0018] Figure 7 This is a schematic diagram of the fan-shaped gate structure of the second embodiment of the utility model.

[0019] In the figure: 1. chute box; 101. sealing protrusion; 102. give way cavity; 103. maintenance opening; 2. transmission shaft; 3. fan-shaped gate; 31. wear-resistant lining; 4. electro-hydraulic drive mechanism; 41. crank; 42. electro-hydraulic push rod; 43. connecting seat; 5. bearing chamber; 6. sealing end plate; 61. observation window; 7. bearing; 8. sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0021] See also Figure 1-6 The utility model provides a technical solution: a fully sealed electro-hydraulic sector gate, comprising a sector gate 3 provided in a chute box body 1, the chute box body 1 is an inclined funnel structure, a sealing protrusion 101 protruding outward is provided on one side wall of the chute box body 1 at a position corresponding to the sector gate 3, and a clearance cavity 102 is provided at the sealing protrusion 101 in the chute box body 1; the sector gate 3 is rotatably connected to the discharge port of the chute box body 1 through a transmission shaft 2, both ends of the transmission shaft 2 pass through the chute box body 1, and a drivable transmission is provided on the outer wall of the chute box body 1 The electric hydraulic drive mechanism 4 rotates the shaft 2, and when the fan-shaped gate plate 3 is opened, it rotates to the clearance cavity 102; the electric hydraulic drive mechanism 4 includes a crank 41 fixedly connected to the end of the transmission shaft 2, and the swing end of the crank 41 is movably connected to the electric hydraulic push rod 42, and the electric hydraulic push rod 42 is movably connected to the outer wall of the chute box body 1 through a connecting seat 43; a bearing chamber 5 is provided at the connection between the outer wall of the chute box body 1 and the transmission shaft 2, and the transmission shaft 2 is rotatably connected to the bearing chamber 5 through a bearing 7, and a sealing ring 8 for rotating sealing with the transmission shaft 2 is also provided in the bearing chamber 5;

[0022] A wear-resistant lining plate 31 is fixedly provided on the fan-shaped blocking surface of the fan-shaped gate plate 3 . The fan-shaped blocking surface of the fan-shaped gate plate 3 is an arc-shaped structure, and the wear-resistant lining plate 31 is an integrated arc plate structure.

[0023] Working principle:

[0024] The feed port end at the top of the chute box body 1 is sealed and connected to the discharge hopper of the external warehouse body, and the discharge port end at the bottom of the chute box body 1 is sealed and connected to the external material receiving device. The crank 41 is driven to rotate by extending the electro-hydraulic push rod 42, and the crank 41 drives the transmission shaft 2 to rotate. The fan-shaped gate 3 swings toward the yield cavity 102 as the transmission shaft 2 rotates, thereby opening the fan-shaped gate to allow the material at the feed port of the chute box body 1 to be discharged, and the opening size of the fan-shaped gate can be adjusted by controlling the extension length of the electro-hydraulic push rod 42; the electro-hydraulic push rod 42 contracts to drive the fan-shaped gate to close, and the fan-shaped blocking surface of the fan-shaped gate 3 blocks the discharge channel of the chute box body 1.

[0025] Furthermore, a maintenance opening 103 is provided on a side wall of the chute box 1 corresponding to the fan-shaped gate plate 3, and a sealing end plate 6 is fixedly connected to the maintenance opening 103, and an observation window 61 is also provided on the sealing end plate 6. By opening the sealing end plate 6, it is convenient to inspect the interior of the fan-shaped gate, and through the observation window 61, it is convenient to discharge materials inside the fan-shaped gate.

[0026] The fully sealed electro-hydraulic sector gate disclosed in the present embodiment has a sector gate plate 3 arranged in a chute box body 1. The chute box body 1 is provided with a make way cavity 102 for accommodating the sector gate plate 3. The transmission shaft 2 is rotationally sealed through the bearing chamber 5 and the sealing ring 8 provided therein, and the chute box body 1 is sealed as a whole, which can ensure that dust does not leak out, has good sealing effect, good environmental protection performance, simple and reasonable structure, and stable and reliable operation. The sector-shaped blocking surface of the sector gate plate 3 is an arc-shaped structure, which can effectively disperse the impact of the material and can withstand a large warehouse pressure. Embodiment 2

[0027] See also Figure 1-5 and Figure 7 Compared with the first embodiment, the fan-shaped blocking surface of the fan-shaped gate plate 3 is a polygonal arch structure, and the wear-resistant lining plate 31 is composed of a plurality of independent lining blocks. Each lining block of the wear-resistant lining plate 31 fits with the fan-shaped blocking surface of the fan-shaped gate plate 3 and is fixed to each other.

[0028] The fully sealed electro-hydraulic sector gate disclosed in this embodiment has a sector-shaped blocking surface of the sector gate plate 3 of a polygonal arch structure, and the wear-resistant lining plate 31 is composed of multiple independent lining plates. The wear-resistant lining plate 31 is easy to manufacture, has a low production cost, and is easy to repair and replace.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully sealed electro-hydraulic sector gate, comprising a sector gate provided in a chute box, characterized in that: A sealing protrusion protruding outward is provided on one side wall of the chute box body at the position corresponding to the fan-shaped gate plate, and a clearance cavity is provided in the chute box body at the sealing protrusion; the fan-shaped gate plate is rotatably connected to the discharge port of the chute box body through a transmission shaft, and both ends of the transmission shaft pass through the chute box body. An electro-hydraulic drive mechanism that can drive the transmission shaft to rotate is provided on the outer wall of the chute box body, and the fan-shaped gate plate rotates to the clearance cavity when it is opened; a wear-resistant lining is fixedly provided on the fan-shaped blocking surface of the fan-shaped gate plate.

2. A fully sealed electro-hydraulic sector gate according to claim 1, characterized in that: The electro-hydraulic drive mechanism comprises a crank fixedly connected to the end of the transmission shaft, the swing end of the crank is movably connected to an electro-hydraulic push rod, and the electro-hydraulic push rod is movably connected to the outer wall of the chute box body through a connecting seat.

3. A fully sealed electro-hydraulic sector gate according to claim 1, characterized in that: A bearing chamber is provided at the connection between the outer wall of the chute box body and the transmission shaft. The transmission shaft is rotatably connected to the bearing chamber through a bearing, and a sealing ring that is rotatably sealed with the transmission shaft is also provided in the bearing chamber.

4. A fully sealed electro-hydraulic sector gate according to claim 1, characterized in that: A maintenance opening is provided on a side wall of the chute box body corresponding to the fan-shaped gate plate, a sealing end plate is fixedly connected to the maintenance opening, and an observation window is also provided on the sealing end plate.

5. A fully sealed electro-hydraulic sector gate according to claim 1, characterized in that: The chute box body is an inclined funnel structure.

6. A fully sealed electro-hydraulic sector gate according to claim 1, characterized in that: The fan-shaped blocking surface of the fan-shaped gate plate is an arc-shaped structure, and the wear-resistant lining plate is an integrated arc plate structure.

7. A fully sealed electro-hydraulic sector gate according to claim 1, characterized in that: The fan-shaped blocking surface of the fan-shaped gate is a polygonal arch structure, and the wear-resistant lining plate is composed of a plurality of independent lining blocks. Each lining block of the wear-resistant lining plate fits the fan-shaped blocking surface of the fan-shaped gate and is fixed to each other.

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