Window opening frame, drive unit and scraper conveyor

Abstract

This utility model discloses a window opening frame, a drive unit, and a scraper conveyor. The frame is mounted on the drive frame body and includes a movable insert plate and a connecting bracket. The movable insert plate is detachably fixed to the drive frame body. The connecting bracket has a side-opening installation window at its bottom that matches the movable insert plate. The connecting bracket is detachably connected to the drive frame body and can be positioned above the movable insert plate. In this utility model, by making the movable insert plate detachably fixed to the drive frame body and providing an installation window on the connecting bracket above the movable insert plate, the movable insert plate can be pushed out from the side of the drive frame body after being fixed in contact, thus exposing an inspection port. This avoids the need to disassemble the entire scraper chain as in the prior art, thereby facilitating maintenance.

Description

Technical Field

[0001] This utility model relates to the field of coal mine transportation technology, and more specifically to a window frame, a drive unit, and a scraper conveyor. Background Technology

[0002] A scraper conveyor is a continuously operating transport machine that uses a flexible body as its traction mechanism. Scraper conveyors are primarily used in longwall coal mining faces and are currently the only transport equipment in longwall coal mining faces. They can also be used in mining roadways, connecting eyes, mining inclines, and tunneling faces, mainly undertaking the task of coal transportation. In addition to transporting coal and materials, scraper conveyors also serve as the running track for coal mining machines, making them an indispensable main piece of equipment in modern coal mining technology. As long as the scraper conveyor continues to operate continuously, production can proceed normally. Otherwise, the entire coal mining face will be shut down, causing a complete production interruption.

[0003] Currently, domestic scraper conveyors mainly consist of a drive unit (head), trough, and tail. The drive unit is the core power source for the entire scraper conveyor. Traditionally, the drive unit is placed at one end or both ends of the scraper conveyor; alternatively, intermediate drive scraper conveyors have been introduced, placing the drive unit in the middle of the scraper conveyor, thus expanding the variety of scraper conveyor products.

[0004] See Figure 1 , Figure 2 The commissioning and routine maintenance of scraper conveyors are crucial for ensuring their performance. Maintenance work requires removing the cover plate above the area being inspected. Normally, the cover plate is held down by the scraper chain above it, necessitating loosening the tensioned chain and disassembling the chain scraper, resulting in a significant workload. (See also...) Figure 3 , Figure 4 , Figure 5 The maintenance of the slotted structure with window openings also requires operating space on both sides, making maintenance more difficult in special working conditions with limited space. Utility Model Content

[0005] The technical problem to be solved by this utility model is how to facilitate the maintenance of scraper conveyors.

[0006] This utility model solves the above-mentioned technical problems through the following technical means: a window opening frame, which is set on the drive frame body, includes a movable insert plate and a connecting bracket. The movable insert plate is detachably fixed to the drive frame body. The bottom of the connecting bracket has an installation window that is opened laterally and adapted to the movable insert plate. The connecting bracket is detachably connected to the drive frame body and can be located above the movable insert plate.

[0007] As a preferred technical solution, it is embedded and fixed in the drive frame body, and the movable insert plate is provided with a waist-shaped fixing through hole and a hand-held hole.

[0008] As a preferred technical solution, a reinforcing plate is fixedly connected to the outside of the side plate notch of the drive frame body. The reinforcing plate is fastened to the movable insert plate by bolts, and the connecting bracket is fastened to the drive frame body by bolts.

[0009] As a preferred technical solution, the connecting bracket includes at least one side plate, a connecting plate, and a fixed middle plate. The bottom of the side plate is fixedly connected to a first fixed middle plate and a second fixed middle plate, and an installation window is formed between the first fixed middle plate and the second fixed middle plate. The connecting plates are fixedly connected to both sides of the side plate along the conveying direction of the scraper chain.

[0010] As a preferred technical solution, a gap is left between the side plate and the movable insert plate.

[0011] As a preferred technical solution, the connecting plate is fastened to the front connecting plate and the rear connecting plate of the drive frame body by bolts.

[0012] As a preferred technical solution, there are two side plates, and a pressure chain plate is fixedly connected to one end of each side plate. The plane where the pressure chain plate is located is above the plane where the bottom of the movable insert plate is located.

[0013] As a preferred technical solution, the front and rear upper edges of the fixed middle plate one and the fixed middle plate two are provided with transition bevel two, and the lower edge of the pressure plate is provided with transition bevel one.

[0014] This utility model also provides a drive unit, including a window opening frame and a drive frame body, wherein the drive frame body is fixedly connected to the window opening frame.

[0015] This utility model also provides a scraper conveyor, including the aforementioned drive unit.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) In this utility model, by setting the movable insert plate and the drive frame body to be detachably fixed, and setting an installation window on the connecting bracket above the movable insert plate, the movable insert plate can be pushed out from the side of the drive frame body after being contacted and fixed, thereby exposing the inspection port, avoiding the need to disassemble the entire scraper chain in the prior art, thus facilitating maintenance.

[0018] (2) In this utility model, by setting the connecting bracket to be detachably connected to the drive frame body, when the side space is limited, the connecting bracket that vertically limits the movable insert plate can be disassembled from the top, and then the movable insert plate can be disassembled for maintenance. This realizes the integration of top disassembly and side disassembly functions and is suitable for different usage scenarios.

[0019] (3) In this utility model, by setting a gap of 1.5 to 2 mm between the side plate and the movable insert plate, it can not only ensure that the movable insert plate can be smoothly pulled and moved left and right when it is disassembled, but also prevent coal and other materials in the trough from leaking from the opening of the side plate during material transportation.

[0020] (4) In this utility model, the upper edges of the first and second fixed middle plates are provided with transition bevels, and the lower edge of the pressure plate is provided with transition bevels. This avoids the formation of a step at the interface due to manufacturing and assembly errors, and can prevent hard scraping and impact of the scraper chain and materials during operation.

[0021] (5) In this utility model, the window opening frame is embedded and fixed in the drive frame body, which ensures the integrity of the drive frame body. By setting the reinforcing plate, the front connecting plate and the rear connecting plate, a window frame platform structure is formed, which improves the structural strength of the side plate edge and prevents deformation. Attached Figure Description

[0022] Figure 1 A schematic diagram of the cross-sectional structure of the window cover plate provided for the background technology of this utility model;

[0023] Figure 2 A schematic diagram of the inner window structure of the middle plate is provided for the background technology of this utility model;

[0024] Figure 3 A schematic diagram of the cross-sectional structure of the windowed insert plate provided for the background technology of this utility model;

[0025] Figure 4 A top view of the windowed insert structure provided for the background technology of this utility model;

[0026] Figure 5 A side view diagram of the side plate structure is provided for the background technology of this utility model;

[0027] Figure 6 This is a schematic diagram of the installation structure of the drive frame body and the window opening frame provided in Embodiment 1 of this utility model;

[0028] Figure 7 Provided for Embodiment 1 of this utility model Figure 6 A schematic diagram of the enlarged G-shaped structure;

[0029] Figure 8 This is a top view of the window frame structure provided in Embodiment 1 of this utility model;

[0030] Figure 9 This is a side view diagram of the side plate structure provided in Embodiment 1 of this utility model;

[0031] Figure 10 Provided for Embodiment 1 of this utility model Figure 9 A schematic diagram of the H-shaped enlarged structure;

[0032] Figure 11 This is a schematic diagram of the connection structure of the drive frame body, window opening frame, and movable insert plate provided in Embodiment 2 of this utility model;

[0033] Figure 12 This is a schematic diagram of the cross-sectional structure of the sprocket provided in Embodiment 2 of this utility model;

[0034] Figure 13 This is a schematic diagram of the power device structure provided in Embodiment 2 of this utility model;

[0035] Figure 14 This is a schematic diagram of the movable insert plate arrangement structure provided in Embodiment 2 of this utility model;

[0036] Reference numerals: 2. Drive frame body; 23. Drive frame side plate; 24. Drive frame chain clamping plate; 25. Drive frame upper middle plate; 26. Drive frame front connecting plate; 27. Drive frame rear connecting plate; 28. Sprocket; 4. Power unit; 5. Window opening frame; 51. Side plate; 511. Left side plate; 512. Right side plate; 52. Chain clamping plate; 53. Front connecting plate; 54. Rear connecting plate; 55. Fixed middle plate one; 56. Fixed middle plate two; 57. Movable insert plate; 58. Reinforcing plate; 59. Transition bevel one; 510. Transition bevel two; 513. Gap. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] Example 1

[0039] See Figure 6 , Figure 11 The window opening frame 5 is mounted on the drive frame body 2. In this embodiment, taking the embedded fixing as an example, the top plane of the window opening frame 5 is coplanar with the top plane of the drive frame body 2. The window opening frame 5 includes a movable insert plate 57 and a connecting bracket. The connecting bracket includes a side plate 51, a front connecting part, and a rear connecting part. The side plate connects the front connecting part and the rear connecting part into a whole. A reinforcing plate 58 is fixedly connected to the outside of the notch of the drive frame side plate 23 of the drive frame body 2.

[0040] The front connecting part and the rear connecting part are located on the top of the reinforcing plate 58. The movable insert plate 57 is detachably fixed to the drive frame body 2. In this embodiment, it is detachably fixed to the reinforcing plate 58. The front connecting part and the rear connecting part are arranged along the running direction of the upper scraper chain. The front connecting part is located downstream of the rear connecting part. The front connecting part includes a fixed middle plate 2 56 and a front connecting plate 53. The fixed middle plate 2 56 is located on the top of the reinforcing plate 58. Two side plates 51 are vertically fixed to the top of the fixed middle plate 2 56. The front connecting plate 53 is fixedly connected to the opposite ends of the two side plates 51. The front connecting plate 53 is detachably fixed to the drive frame body 26 by bolts.

[0041] The rear connecting part includes a fixed middle plate 55 and a rear connecting plate 54. The fixed middle plate 55 is fixedly connected to the top of the reinforcing plate 58 and is separated from the fixed middle plate 56 by a certain distance. The fixed middle plate 55 and the fixed middle plate 56 are located on the same plane. The top of the fixed middle plate 55 is fixedly connected to the bottom of the two side plates 51. The distance between the fixed middle plate 55 and the fixed middle plate 56 is adapted to the width of the movable insert plate 57. The movable insert plate 57 is detachably fixed to the reinforcing plate 58 by bolts. A through hole is provided on the reinforcing plate 58 at the boundary corresponding to the movable insert plate 57.

[0042] See Figure 8 Each of the two side plates 51 is fixedly connected to a pressure plate 52 on the opposite side. In this embodiment, the two side plates 51 include a left side plate 511 and a right side plate 512. The side of the left side plate 511 facing the right side plate 512 and the side of the right side plate 512 facing the left side plate 511 are both fixedly connected to pressure plates 52. In order to facilitate the disassembly of the connecting bracket, gaps are left at the front and rear ends of the two pressure plates 52. Inspection ports are opened at the corresponding positions of the movable insert plate 57 of the drive frame body 2 and the window frame 3.

[0043] The window opening frame 5 is treated as a separate component and connected to the reinforcing plate 58 in a detachable manner. Compared with the original method of removing the cover plate above the inspection area, the structure is simpler and the inspection hole range is expanded. After removing the bolts, the movable insert plate 57 can be pulled out from the side, so that the gap between the scraper chains can be connected with the inspection port for the debugging and daily maintenance of the scraper machine.

[0044] A gap of 1.5 to 2 mm is provided between the side plate 51 and the movable insert plate 57. This not only ensures that the movable insert plate 57 can be smoothly pulled and moved left and right when it is disassembled, but also prevents coal and other materials in the trough from leaking out from the opening of the side plate 51 during material transportation.

[0045] See Figure 6 , Figure 7The front connecting plate 53 and the rear connecting plate 54 are fixedly connected to the front connecting plate 26 and the rear connecting plate 27 of the drive frame by bolts, respectively. When the side plate 51, the chain pressing plate 52, the first fixed middle plate 55 and the second fixed middle plate 56 are assembled, they are respectively aligned with the drive frame side plate 23, the drive frame chain pressing plate 24 and the upper middle plate 25 of the drive frame body 2.

[0046] See Figure 7 The upper edges of the fixed middle plate 55 and the fixed middle plate 56 are both provided with 3×10 transition bevels 510, and the lower edge of the pressure plate 52 is provided with 4×10 transition bevels 59. The provision of transition bevels 510 and 59 avoids the formation of facing steps at the interface due to manufacturing and assembly errors, and can prevent hard scraping and impact between the scraper chain and the material during operation.

[0047] See Figure 8 The movable insert plate 57 has four waist-shaped fixing through holes at its four corners for bolt installation. Two rectangular hand-held holes are provided in the middle of both ends of the movable insert plate 57 to facilitate manual operation of pulling and moving the insert plate.

[0048] A window notch is provided on the upper middle plate 25 and the side plate 23 of the drive frame corresponding to the maintenance part of the drive frame body 2. The front connecting plate 26, the rear connecting plate 27 and the reinforcing plate 58 of the drive frame are provided on the side plate 23 to form a "window frame platform" structure, so as to improve the structural strength of the edge of the drive frame body 2 at this point and prevent deformation. At the same time, bolt fixing holes are provided on the front connecting plate 26, the rear connecting plate 27 and the reinforcing plate 58 of the drive frame to be installed and fixed with the connecting bracket and the movable insert plate 57 respectively.

[0049] When the scraper conveyor is used in a particularly narrow space with insufficient space on both sides, or when other equipment, materials, or other foreign objects temporarily block the drive motor and cannot be moved, the movable insert plate 57 may not be able to be pulled out laterally. In this case, after stopping the machine, reliably fix the scraper chains at the front and rear ends of the window opening frame 5, remove the scraper chains to expose the window opening frame 5, remove the fixing bolts of the front connecting plate 53 and the rear connecting plate 54, as well as the insert plate bolts, and then move the entire window opening frame 5 upwards. Then, vertically disassemble the movable insert plate 57 to perform maintenance on the faulty area below. After completion, place the movable insert plate 57 and the window opening frame 5 in reverse order, install the fixing bolts, and then reconnect and reset the scraper chain.

[0050] Example 2

[0051] See Figure 12The difference between this embodiment and embodiment 1 is that it provides a drive unit including the window opening frame 5 in embodiment 1. The drive unit also includes a drive frame body 2, which is detachably and fixedly connected to the window opening frame 5. The drive frame body 2 has an installation area adapted to the window opening frame 5. The drive frame body 2 consists of two side plates 23, which are arranged in parallel and fixedly connected. A gap is left between the two frames for installing the sprocket 28 and other structural components of the scraper conveyor. In this embodiment, the window opening frame 5 is installed above the sprocket 28.

[0052] See Figure 13 , Figure 14 A power unit 4 with a drive sprocket 28 is fixedly connected to one side of the drive frame body 2. The output end of the power unit 4 is connected to the sprocket 28 for transmission. Through holes are opened on the two side plates 23, forming an installation area. The reinforcing plate 58 is fixedly connected to the outside of the two frames, thereby providing a bolt fixing reference for the movable insert plate 57.

[0053] Example 3

[0054] The difference between this embodiment and embodiment 2 is that this embodiment provides a scraper conveyor that includes the drive unit in embodiment 2;

[0055] It should be noted that the window opening frame 5 has two functions: disassembling the movable insert plate 57 separately to the left and right, or disassembling the window opening frame 5 and the movable insert plate 57 upwards. During the maintenance of the scraper conveyor, it can be flexibly used according to the on-site operating space under normal and abnormal working conditions. Even in special circumstances where the equipment or foreign objects are blocked and cannot be moved temporarily, resulting in insufficient maintenance space, the maintenance work can still be completed relatively quickly. This avoids the losses caused by the inability to maintain the equipment in a timely manner under special working conditions, greatly facilitating the arrangement of equipment maintenance work and improving the adaptability of this type of scraper conveyor to complex underground working conditions.

[0056] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A window opening frame, mounted on the drive frame body, characterized in that, It includes a movable insert plate and a connecting bracket. The movable insert plate is detachably fixed to the drive frame body. The bottom of the connecting bracket has an installation window that is opened laterally and adapted to the movable insert plate. The connecting bracket is detachably connected to the drive frame body and can be located above the movable insert plate.

2. The window frame according to claim 1, characterized in that, It is embedded and fixed in the drive frame body, and the movable insert plate is provided with waist-shaped fixing through hole and hand-held hole.

3. The window frame according to claim 1, characterized in that, A reinforcing plate is fixedly connected to the outside of the side plate notch of the drive frame body. The reinforcing plate is fastened to the movable insert plate by bolts. The connecting bracket is fastened to the drive frame body by bolts.

4. The window frame according to claim 1, characterized in that, The connecting bracket includes at least one side plate, a connecting plate, and a fixed middle plate. Fixed middle plate one and fixed middle plate two are fixedly connected to the bottom of the side plate, and an installation window is formed between fixed middle plate one and fixed middle plate two. Connecting plates are fixedly connected to both sides of the side plate along the conveying direction of the scraper chain.

5. The window frame according to claim 4, characterized in that, A gap is left between the side plate and the movable insert plate.

6. The window frame according to claim 4, characterized in that, The connecting plate is fastened to the front connecting plate and the rear connecting plate of the drive frame body by bolts.

7. The window frame according to claim 4, characterized in that, There are two side plates, and a pressure chain plate is fixedly connected to one end of each side plate. The plane of the pressure chain plate is located above the plane of the bottom of the movable insert plate.

8. The window frame according to claim 7, characterized in that, Both the front and rear upper edges of the fixed middle plate 1 and the fixed middle plate 2 are provided with transition bevel 2, and the lower edge of the pressure chain plate is provided with transition bevel 1.

9. A drive unit, characterized in that, It includes the window opening frame and the drive frame body as described in any one of claims 1-8, the drive frame body is fixedly connected to the window opening frame, and the drive frame body and the movable insert plate of the window opening frame are provided with maintenance ports at corresponding positions.

10. A scraper conveyor, characterized in that, Includes the drive unit as described in claim 9.

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