A trough body of a sectionally linked maintenance door of a reclaimer landing section

Abstract

The utility model relates to a transfer machine technical field more specifically, and relates to a kind of slot body of transfer machine landing section with sectional linkage type access door, including slot body ontology and sectional linkage door, slot body ontology side is formed with opening, sectional linkage door is matched with opening;Sectional linkage door includes one section door and two section doors, two section doors are rotationally arranged on the lateral wall of slot body ontology, and driving structure for driving two section doors relative slot body ontology rotation is arranged between two section doors and slot body ontology;The end of two section doors away from driving structure is fixedly provided with coupling plate I, and one section door is rotationally arranged on coupling plate I.The utility model is opened by two section doors and one section door linkage, forms the large passageway of through two slots (special groove I, special groove II), solves the problem of insufficient window space of single slot body.One section door can be independently rotated and opened, to satisfy single person fast traffic;Two section doors linkage opening satisfy equipment access, and different maintenance needs are considered.

Description

Technical Field

[0001] This utility model relates to the field of transfer machine technology, and more specifically, to a trough with segmented linkage maintenance doors in the landing section of a transfer machine. Background Technology

[0002] In underground coal mining operations, scraper conveyors in the roadway are responsible for transporting coal. When the scraper chain malfunctions or the interior of the roadway needs maintenance, it is usually necessary to remove the top cover, raised baffle, and side baffle to access the interior. Currently, the only design is to add a maintenance window to the side baffle of the roadway at the landing section of the conveyor (such as the utility model patent with publication number CN218369857U). However, this type of maintenance door designed on a single roadway baffle has many limitations: firstly, the maintenance window is limited by the size of the baffle, and the space is very limited, so the top baffle and raised baffle may still need to be removed during maintenance; secondly, after the window is opened, the structure relies on pin connections, which reduces the overall strength of the baffle and renders it ineffective as a basic function of the baffle, failing to achieve a balance between safety and convenience.

[0003] To address the two challenges mentioned above, the designers further proposed a solution involving a two-section trough assembly with a maintenance door. This solution places the hinge point at the junction of the two troughs, using a long connecting plate welded to trough I. The entire baffle of trough II can be used as a maintenance door, increasing the entrance space. An inner clamping plate is installed at the junction of the two troughs to prevent coal leakage. The raised baffle or cover of trough II is connected to the raised baffles or covers of the adjacent two trough sections, achieving the goal of opening the maintenance door without disassembling other components. However, this structure still has some problems, such as: First, the size of the maintenance door is fixed, and the opening size cannot be determined based on whether maintenance equipment is being carried, thus limiting its flexibility according to usage; second, the increased size of the maintenance door significantly increases its weight, potentially requiring tools to open it during maintenance; third, the lack of a reliable locking mechanism after the maintenance door is opened may pose a safety hazard.

[0004] Therefore, it is necessary to improve existing technologies. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, a trough with segmented linkage maintenance doors is provided for the landing section of a transfer machine, which allows for flexible selection of door opening size, convenient opening and closing of maintenance doors, and locking of maintenance doors.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A trough with segmented linkage maintenance doors in the landing section of a transfer machine includes a trough body and segmented linkage doors. An opening is formed on one side of the trough body, and the segmented linkage doors cooperate with the opening. The segmented linkage door includes a first-section door and a second-section door. The second-section door is rotatably mounted on the side wall of the tank body. A drive structure is provided between the second-section door and the tank body to drive the second-section door to rotate relative to the tank body. A connecting plate I is fixedly mounted on the end of the second-section door away from the drive structure. The first-section door is rotatably mounted on the connecting plate I. The upper ends of both the first-section door and the second-section door are provided with a connecting structure I that cooperates with the heightening baffle at the upper end of the tank body. The lower ends of both the first-section door and the second-section door are provided with a connecting structure II that cooperates with the lower tank body at the lower end of the tank body. An angle sensor for detecting the opening angle of the second-section door is installed on the tank body.

[0007] Preferably, the tank body includes a mating groove, special groove I, special groove II, and a turning fixing groove connected in sequence; the opening is formed by removing the baffles from special groove I and special groove II; A connecting plate assembly is welded to the steering fixing groove, and a connecting assembly that rotates with the connecting plate assembly is welded to the two-section door. The drive structure includes a hydraulic cylinder, a two-way hydraulic lock, and an operating valve. The two-section door and the steering fixing groove are respectively provided with a cylinder connecting seat I and a cylinder connecting seat II. The two ends of the hydraulic cylinder are respectively hinged to cylinder connecting seat I and cylinder connecting seat II. The two-way hydraulic lock and the operating valve are arranged in the oil circuit of the hydraulic cylinder.

[0008] Preferably, a connecting plate II is provided at the central rib of the door section, which is rotatably engaged with the connecting plate I; Coal retaining plate I and coal retaining plate II are fixedly connected to the first-stage gate and the second-stage gate along the coal flow side, respectively. When the first-stage gate is closed, coal retaining plate I and coal retaining plate II cover the gaps between the first-stage gate and the matching groove baffle, and between the first-stage gate and the second-stage gate, respectively.

[0009] Preferably, the raised baffles of the matching trough, special trough I, special trough II, and turning fixed trough are all fixedly connected to the coal flow side with plug-in plates, and the plug-in plates are connected to the adjacent raised baffles by bolts.

[0010] Preferably, the lower part of the special groove II is provided with a protruding platform, and the lower end of the two-section door contacts the protruding platform.

[0011] Preferably, the upper end of the special trough I and special trough II is provided with an upper coal baffle plate on the coal flow side.

[0012] Preferably, both connection structure I and connection structure II include a connecting plate and bolts, and the connecting plate is fixedly connected to the corresponding heightening baffle or lower tank body by bolts.

[0013] Preferably, the operating valve includes an automatic control valve and a manual control valve.

[0014] The advantages of this utility model compared with the prior art are as follows: 1. This utility model solves the problem of insufficient opening space in a single slot by linking the two-section door with the single-section door, forming a large passage connecting the two slots (Special Slot I and Special Slot II). The single-section door can be opened independently, allowing for quick passage for a single person; the linked opening of the two-section door allows for equipment entry and exit, accommodating different maintenance needs. When opening only the single-section door, simply remove the bolts and fasteners on Special Slot I to rotate and open the door, making operation easy; when opening the two-section door, due to the large weight of the all-steel components, the hydraulic cylinder drive control is labor-saving and efficient.

[0015] 2. By installing a plug-in plate on the heightening baffle, the heightening baffle and cover plate can remain in their original positions when the first or second door is opened, reducing the steps of removing the heightening baffle and cover plate and greatly improving maintenance efficiency.

[0016] 3. In this utility model, coal baffles are welded to both the first and second doors in the direction of coal flow, and the gap between the top cover plates is also equipped with upper coal baffles to ensure that there is no coal leakage under normal working conditions. Moreover, the above design does not affect the horizontal and vertical deflection between the troughs. Attached Figure Description

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the special groove I of this utility model; Figure 3 This is a schematic diagram of the structure of the special groove II of this utility model; Figure 4 This is a schematic diagram of the steering fixing groove of this utility model; Figure 5 This is a top view of the special groove II of this utility model; In the diagram: 1 is the mating groove, 2 is special groove I, 3 is special groove II, 4 is the steering fixing groove, 5 is the first-section door, 6 is the second-section door, 7 is the hydraulic cylinder, 8 is the coal retaining plate I, 9 is the plug-in plate, 10 is the upper coal retaining plate, 11 is the connecting plate II, 12 is the bolt, 13 is the connecting plate, 14 is the connecting plate I, 15 is the coal retaining plate II, 16 is the cylinder connecting seat I, 19 is the connecting assembly, 20 is the connecting plate assembly, 21 is the angle sensor mounting location, 22 is the cylinder connecting seat II, and 23 is the protruding platform. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: like Figures 1 to 5 As shown, a trough with segmented linkage maintenance doors in the landing section of a transfer machine includes a trough body and segmented linkage doors. An opening is formed on one side of the trough body, and the segmented linkage doors cooperate with the opening to open and close it. Preferably, the trough body includes a mating groove 1, a special groove I 2, a special groove II 3, and a turning fixing groove 4 connected in sequence. The opening is formed by removing the baffles from the special grooves I 2 and II 3.

[0021] In order to open openings of different sizes to meet different needs, in this embodiment, the segmented linkage door includes a first-section door 5 and a second-section door 6. When only the first-section door 5 is open, it can be used for personnel to pass through; when the first-section door 5 and the second-section door 6 are opened at the same time, it can be used for personnel to carry maintenance equipment through.

[0022] Specifically, a connecting plate assembly 20 is welded to the steering fixing groove 4, and a connecting assembly 19 is welded to the second-section door 6. The second-section door 6 is connected to the groove body through the rotatable engagement of the connecting assembly 19 and the connecting plate assembly 20. A connecting plate I 14 is fixedly installed at the end of the second-section door 6 away from the drive structure, and a connecting plate II 11 is installed at the central rib of the first-section door 5. The first-section door 5 is connected to the second-section door 6 through the rotatable engagement of the connecting plate II 11 and the connecting plate I 14. Preferably, the first-section door 5 can rotate 90° relative to the connecting plate I 14 for easy personnel entry and exit.

[0023] A drive structure is provided between the second-section door 6 and the tank body (or the steering and fixing groove 4) to drive the second-section door 6 to rotate relative to the tank body. Specifically, the drive structure includes a hydraulic cylinder 7 and an operating valve. A cylinder connecting seat I 16 and a cylinder connecting seat II 22 are respectively provided on the second-section door 6 and the steering and fixing groove 4. Both ends of the hydraulic cylinder 7 are hinged to the cylinder connecting seat I 16 and the cylinder connecting seat II 22, respectively. When the hydraulic cylinder 7 retracts, it can drive the second-section door 6 to open, and simultaneously the first-section door 5 rotates with the second-section door 6. The operating valve is located in the oil circuit of the hydraulic cylinder 7, and controls the working state of the hydraulic cylinder 7. Preferably, the operating valve includes an automatic control valve and a manual control valve. The automatic control valve is used to control the normal operation of the hydraulic cylinder 7, and when the hydraulic system malfunctions, the door can be manually opened and closed via the manual control valve.

[0024] To protect the structural strength of the tank during normal operation, the upper ends of both the first-section door 5 and the second-section door 6 are equipped with a connecting structure I that mates with the raised baffle at the upper end of the tank body. The lower ends of both the first-section door 5 and the second-section door 6 are equipped with a connecting structure II that mates with the lower tank body at the lower end of the tank body, thus enabling the first-section door 5 and the second-section door 6 to function as tank baffles. Specifically, both connecting structure I and connecting structure II include a connecting plate 13 and bolts 12, which securely connect the connecting plate 13 to the corresponding raised baffle or lower tank body.

[0025] To ensure that the operation of the raised baffles is not affected when the first-stage door 5 and the second-stage door 6 are opened, plug-in plates 9 are fixedly connected to the raised baffles of the mating trough 1, special trough I 2, special trough II 3, and rotating fixed trough 4 on the coal flow side. The plug-in plates 9 are bolted to the adjacent raised baffles. After the first-stage door 5 and the second-stage door 6 are opened, the load-bearing capacity of the raised baffles and covers of the two special troughs is distributed to the mating trough and rotating fixed trough. This structure avoids the opening trajectory of the maintenance door, eliminating the need for disassembly when opening the door and solving the problem of cumbersome traditional disassembly and assembly.

[0026] A protruding platform 23 is provided on the lower part of the special groove II 3, and the lower end of the two-section door 6 contacts the protruding platform 23. The protruding platform 23 shares the total weight of the door when it is opened, improving the structural reliability and safety.

[0027] An angle sensor for detecting the opening of the second-stage door 6 is installed on the tank. Preferably, the angle sensor is a mining-grade CFJ90 angle sensor. A two-way hydraulic lock is installed on the hydraulic circuit of the hydraulic cylinder 7. When the angle sensor detects that the second-stage door 6 has opened to a certain angle, the signal is transmitted to the cylinder operating valve, automatically stopping the cylinder's extension and retraction and opening the two-way hydraulic lock to lock the door's position, preventing it from moving due to vibration or accidental activation, and ensuring maintenance safety. The coordination between the operating valve and the sensor is achieved through existing circuitry.

[0028] Coal retaining plates I 8 and II 15 are fixedly connected to the coal flow side of section 5 and section 6, respectively. When section 5 is closed, coal retaining plates I 8 and II 15 respectively cover the gaps between section 5 and the baffle of matching trough 1, and between section 5 and section 6. Upper coal retaining plates 10 are installed at the upper ends of special troughs I 2 and II 3 on the coal flow side. The plug-in plate 9 serves both as a leak-proof material and a connecting and heightening baffle, while coal retaining plate II 15 serves both as a leak-proof material and a fixing connecting plate 14. The upper coal retaining plate 10 is connected by pins. All of the above designs ensure that leak-proof materials and normal opening and maintenance doors are maintained without affecting the horizontal and vertical deflection between the troughs.

[0029] Working principle: Normal working condition: Section 5 is fixed to the raised baffle and lower trough of special trough I2 by bolts and fasteners. Section 6 is fixed to the raised baffle and lower trough of special trough II3 by bolts and fasteners after it is closed under the control of hydraulic cylinder 7. The raised baffles of adjacent troughs are connected to form an integral load-bearing structure.

[0030] When personnel are performing maintenance alone: ​​remove the bolts and fasteners connecting the lower tank body of section 5 and special tank I2, and the heightening baffle. Rotate section 5 90° along the central axis to open section 5, and personnel can enter the tank through the quick passage.

[0031] When carrying the equipment for maintenance: First, remove the bolts and fasteners connecting the first-section door 5, the second-section door 6, the heightening baffle, and the lower tank. Then, drive the second-section door 6 open via the hydraulic cylinder 7, simultaneously moving the first-section door 5 out of the tank. When the sensor detects that the second-section door has opened to a preset angle, the two-way hydraulic lock ensures that the cylinder does not retract, keeping the door fixed and forming a large passage for equipment entry and exit. The control circuits for the sensors and operating valves utilize existing technology.

[0032] After maintenance: Release the oil cylinder and the two-way hydraulic lock, and close the second-stage door 6 and the first-stage door 5 by retracting the hydraulic cylinder 7. Install the bolts and nuts and restore the normal state.

[0033] The above description only describes the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model, and all such changes should be included within the protection scope of the present utility model.

Claims

1. A trough with segmented, interconnected inspection doors in the landing section of a transfer conveyor, characterized in that: It includes a tank body and a segmented linkage door. An opening is formed on one side of the tank body, and the segmented linkage door cooperates with the opening. The segmented linkage door includes a first-section door (5) and a second-section door (6). The second-section door (6) is rotatably mounted on the side wall of the tank body. A drive structure is provided between the second-section door (6) and the tank body to drive the second-section door (6) to rotate relative to the tank body. A connecting plate I (14) is fixedly mounted on the end of the second-section door (6) away from the drive structure. The first-section door (5) is rotatably mounted on the connecting plate I (14). The upper ends of the first-section door (5) and the second-section door (6) are both provided with a connecting structure I that cooperates with the heightening baffle at the upper end of the tank body. The lower ends of the first-section door (5) and the second-section door (6) are both provided with a connecting structure II that cooperates with the lower tank body at the lower end of the tank body. An angle sensor for detecting the opening angle of the second-section door (6) is installed on the tank body.

2. The trough with segmented, interconnected inspection doors in the landing section of a transfer conveyor according to claim 1, characterized in that: The main body of the trough includes a mating groove (1), a special groove I (2), a special groove II (3), and a turning fixing groove (4) connected in sequence; the opening is formed by removing the baffles from the special groove I (2) and the special groove II (3); A connecting plate assembly (20) is welded on the steering fixing groove (4), and a connecting assembly (19) that rotates with the connecting plate assembly (20) is welded on the two-section door (6). The driving structure includes a hydraulic cylinder (7), a two-way hydraulic lock, and an operating valve. The two-section door (6) and the steering fixing groove (4) are respectively provided with a cylinder connecting seat I (16) and a cylinder connecting seat II (22). The two ends of the hydraulic cylinder (7) are respectively hinged to the cylinder connecting seat I (16) and the cylinder connecting seat II (22). The two-way hydraulic lock and the operating valve are set on the oil circuit of the hydraulic cylinder (7).

3. The trough with segmented, interconnected inspection doors in the landing section of a transfer conveyor according to claim 2, characterized in that: A connecting plate II (11) is provided at the central rib of the door section (5) to rotate with the connecting plate I (14); A coal baffle plate I (8) and a coal baffle plate II (15) are fixedly connected to the coal flow side of the first-stage door (5) and the second-stage door (6), respectively. When the first-stage door (5) is closed, the coal baffle plate I (8) and the coal baffle plate II (15) cover the gap between the first-stage door (5) and the matching groove (1) baffle plate, and between the first-stage door (5) and the second-stage door (6), respectively.

4. The trough with segmented, interconnected inspection doors in the landing section of a transfer conveyor according to claim 2, characterized in that: The raised baffles of the matching groove (1), special groove I (2), special groove II (3), and turning fixed groove (4) are all fixedly connected with plug plates (9) on the coal flow side, and the plug plates (9) are connected to the adjacent raised baffles by bolts.

5. The trough with segmented, interconnected inspection doors in the landing section of a transfer conveyor according to claim 2, characterized in that: The lower part of the special groove II (3) is provided with a protruding platform (23), and the lower end of the second-section door (6) is in contact with the protruding platform (23).

6. The trough with segmented, interconnected inspection doors in the landing section of a transfer conveyor according to claim 2, characterized in that: The special troughs I (2) and II (3) are provided with upper coal baffles (10) on the coal flow side at the upper end.

7. The trough with segmented, interconnected inspection doors in the landing section of a transfer conveyor according to claim 1, characterized in that: Both the connection structure I and the connection structure II include a connection plate (13) and a bolt (12), and the connection plate (13) is fixedly connected to the corresponding heightening baffle or lower tank body by the bolt (12).

8. The trough with segmented linkage inspection doors in the landing section of a transfer conveyor according to claim 2, characterized in that: The operating valves include automatic control valves and manual control valves.

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