Novel scraper reversed loader head buffer plate

Abstract

The utility model discloses a novel scraper reversed loader machine head buffer plate which comprises a machine head side protection plate, a buffer plate body, an adjusting chain, a pin shaft, a cover plate and a leather curtain. The machine head side protection plate is of a high-strength wear-resisting plate assembly welding structure and is connected with a machine head bolt; the buffer plate is hinged with the side protection plate through a pin shaft, and a detachable wear-resistant lining plate is arranged on the bottom surface; the adjusting chain is connected with the buffer plate and the side protection plate, and the height and angle of the buffer plate are changed by adjusting the length; the cover plate covers the buffer plate, and the leather curtain seals the gap between the buffer area and the belt. By means of the adjustable buffering structure, the problems that a traditional buffering plate is non-adjustable and prone to abrasion are solved, impact of coal on the belt can be reduced, the service life of the belt is prolonged, and maintenance cost is reduced. Meanwhile, the high-strength wear-resistant material improves the wear resistance of the component, and the leather curtain effectively prevents coal from splashing. The buffering device is suitable for unloading positions of scraper reversed loader heads on fully mechanized coal mining faces of coal mines, and is particularly suitable for working conditions requiring dynamic adjustment of buffering angles.

Description

Technical Field

[0001] This utility model relates to the technical field of scraper conveyor heads in mining applications, and more specifically, to a novel scraper conveyor head buffer plate. Background Technology

[0002] The head buffer plate of a scraper conveyor is a crucial component at the unloading point of a mining scraper conveyor. It affects the coal conveying efficiency, the performance and lifespan of the self-propelled belt conveyor's tail section, and also influences the work quality and efficiency of fully mechanized mining operations. Traditional scraper conveyor buffer plates are integrally welded structures, which have the following significant drawbacks:

[0003] Non-adjustability: The height and angle of the buffer plate are fixed and cannot be dynamically adjusted according to changes in coal unloading amount, unloading intensity and the height of the self-moving tail of the belt conveyor. This results in concentrated impact on the belt during coal unloading, which can easily cause belt tearing, increased wear and shorten the belt's service life.

[0004] Insufficient wear resistance: The buffer plate is in direct contact with coal and is subjected to high-intensity friction for a long time. However, traditional structures mostly use ordinary steel, which has poor wear resistance and needs to be replaced frequently, increasing maintenance costs and downtime.

[0005] Sealing and guiding defects: Traditional designs do not have an effective sealing structure, which makes coal prone to splashing or leaking during unloading, polluting the working environment and interfering with equipment operation; at the same time, the lack of a precise guiding mechanism results in poor stability of the buffer plate adjustment, affecting the unloading effect.

[0006] The aforementioned problems severely restrict the operating efficiency and economy of scraper conveyors. To address the shortcomings of traditional buffer plates, such as their lack of adjustability, poor wear resistance, and insufficient sealing, solving these problems is currently an important direction for the development of conveyor heads. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of existing technologies and propose a novel scraper conveyor head buffer plate, comprising:

[0008] The machine head side guard plate is a high-strength wear-resistant plate integral welded structure, which is connected to the machine head by bolts;

[0009] The buffer plate is a high-strength wear-resistant plate integrally welded structure, which is hinged to the machine head side guard plate by a pin.

[0010] The adjusting chain, with one end connected to the buffer plate and the other end connected to the machine head side guard plate, is used to adjust the height and angle of the buffer plate;

[0011] A cover plate, which covers the buffer plate and is fixedly connected to the side guard plate of the machine head;

[0012] A leather curtain is placed between the buffer plate and the cover plate to seal the buffer area.

[0013] Preferably, the adjusting chain is a telescopic chain, and its length can be adjusted to change the tilt angle of the buffer plate relative to the unloading position of the machine head.

[0014] Preferably, the bottom surface of the buffer plate is provided with a wear-resistant liner, which is detachably installed on the buffer plate by bolts.

[0015] Preferably, the inner side of the machine head side guard plate is provided with a guide groove, and the two sides of the buffer plate are slidably engaged with the guide groove through pins to realize the up and down movement of the buffer plate.

[0016] Preferably, an elastic buffer is provided between the buffer plate and the head side guard plate, the elastic buffer including a spring or a rubber pad.

[0017] Preferably, the curtain is made of a flexible, wear-resistant material, and its length is sufficient to cover the gap between the buffer plate and the tail belt of the self-propelled conveyor.

[0018] Compared with existing technologies, the beneficial effects of this utility model are: by adjusting the hinge structure of the chain and the pin, the height and angle of the buffer plate can be adjusted in real time to adapt to the changes in unloading amount and unloading intensity of the scraper conveyor, effectively reducing the impact intensity of coal on the tail belt of the belt conveyor and extending the service life of the belt.

[0019] By using a high-strength wear-resistant plate integral welded structure (such as the head side guard plate and buffer plate), the wear resistance of the components is significantly improved, reducing the need for frequent replacement due to wear and reducing maintenance costs.

[0020] The sealing design of the curtain and cover plate can prevent coal from splashing or leaking during unloading, improve the working environment, and avoid coal spillage from interfering with equipment operation.

[0021] The cooperation between the guide groove and the sliding pin makes the adjustment process of the buffer plate smoother, ensures the accuracy of angle adjustment, and further optimizes the unloading effect.

[0022] By incorporating elastic buffers (such as springs or rubber pads), the impact force during unloading can be absorbed, reducing equipment vibration and improving the stability and reliability of the scraper conveyor operation.

[0023] With its removable wear-resistant liner design, the liner can be quickly replaced when the bottom surface of the buffer plate is severely worn, eliminating the need to replace the entire buffer plate and saving maintenance time and costs. Attached Figure Description

[0024] Figure 1This utility model presents a schematic diagram of the overall structure of a novel scraper conveyor head buffer plate (front view and right view).

[0025] Figure 2 This utility model presents a schematic diagram of the structure of a buffer plate in the head buffer plate of a novel scraper conveyor. (Front view, side view, and bottom view)

[0026] Figure 3 This utility model presents a structural schematic diagram (front view, side view, and top view) of the head side guard plate in a novel scraper conveyor head buffer plate.

[0027] Figure 4 This utility model provides a structural schematic diagram (front view and left view) of the chain curtain in the head buffer plate of a novel scraper conveyor.

[0028] In the picture:

[0029] 1: Side guard plate of the machine head;

[0030] 2: Pin;

[0031] 3: Adjust the chain;

[0032] 4: Buffer plate;

[0033] 5: Cover plate;

[0034] 6: Leather curtain. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0036] Referring to the figures, this embodiment provides a novel scraper conveyor head buffer plate, comprising:

[0037] The machine head side guard plate 1 is a high-strength wear-resistant plate integral welded structure, which is connected to the machine head by bolts;

[0038] The buffer plate 4 is a high-strength wear-resistant plate integral welded structure, which is hinged to the machine head side guard plate 1 through the pin 2;

[0039] Adjusting chain 3, one end of which is connected to buffer plate 4 and the other end of which is connected to machine head side guard plate 1, is used to adjust the height and angle of buffer plate 4;

[0040] Cover plate 5 covers the buffer plate 4 and is fixedly connected to the head side guard plate 1;

[0041] The leather curtain 6 is placed between the buffer plate 4 and the cover plate 5 to seal the buffer area.

[0042] Furthermore, the adjusting chain 3 is a telescopic chain, and its length can be adjusted to change the tilt angle of the buffer plate 4 relative to the unloading position of the machine head.

[0043] Furthermore, the bottom surface of the buffer plate 4 is provided with a wear-resistant liner, which is detachably installed on the buffer plate 4 by bolts.

[0044] Furthermore, the inner side of the machine head side guard plate 1 is provided with a guide groove, and the two sides of the buffer plate 4 are slidably engaged with the guide groove through the pin 2 to realize the up and down movement of the buffer plate 4.

[0045] Furthermore, an elastic buffer is provided between the buffer plate 4 and the head side guard plate 1, and the elastic buffer includes a spring or a rubber pad.

[0046] Furthermore, the curtain 6 is made of a flexible and wear-resistant material, and its length can cover the gap between the buffer plate 4 and the tail belt of the self-propelled conveyor.

[0047] Based on the above embodiments, the applicant has made the following application examples:

[0048] Application Case 1: This application case provides a novel scraper conveyor head buffer plate, comprising the following components:

[0049] Machine head side guard plate 1: It is made of high-strength wear-resistant plate (such as Q690D) and welded together. It is fixedly connected to the machine head by bolts. The inner side is provided with guide groove to limit the movement trajectory of buffer plate 4.

[0050] Buffer plate 4: It is a high-strength wear-resistant plate (such as NM400) integrally welded structure, which is hinged to the machine head side guard plate 1 through pin 2. The bottom surface of the buffer plate can be detachably installed with a wear-resistant liner (not shown). The wear-resistant liner is made of tungsten carbide composite material.

[0051] Adjusting chain 3: It is a telescopic chain, one end of which is connected to the buffer plate 4 by a pin, and the other end is fixed in the adjustment hole of the machine head side guard plate 1 by a pin. The tilt angle of the buffer plate 4 can be changed by adjusting the length of the chain.

[0052] Cover plate 5: Made of Q345B steel plate, it is fixed to the top of the machine head side guard plate 1 with bolts, covering the area above the buffer plate 4.

[0053] Leather curtain 6: Made of flexible and wear-resistant rubber, one end is fixed to the bottom of the cover plate 5, and the other end hangs down naturally to the surface of the belt at the tail of the belt self-moving machine, covering the gap between the buffer plate 4 and the belt.

[0054] Working principle:

[0055] When the scraper conveyor unloads coal, the length of the adjusting chain 3 allows the buffer plate 4 to rotate around the pin 2, adjusting its height and angle relative to the unloading position at the machine head. After being guided by the buffer plate 4, the coal falls onto the tail belt of the conveyor with a small impact force. The leather curtain 6 undergoes elastic deformation under the impact of the coal, further buffering the impact and preventing coal from splashing.

[0056] Based on application case 1, an elastic buffer (such as a spring) is added between the buffer plate 4 and the head side guard plate 1. One end of the elastic buffer is fixed to the back of the buffer plate 4, and the other end abuts against the limiting block of the head side guard plate 1. When coal impacts the buffer plate 4, the elastic buffer absorbs part of the impact force, reducing equipment vibration.

[0057] Based on application case 1, a sliding bearing is installed in the guide groove of the machine head side guard plate 1, and the pin 2 of the buffer plate 4 cooperates with the sliding bearing to reduce the friction during the adjustment process and make the buffer plate 4 move more smoothly.

[0058] Based on application case 1, the adjusting chain 3 is replaced by a hydraulic telescopic rod, which is connected to the hydraulic system of the scraper conveyor. By controlling the flow of hydraulic oil, the height and angle of the buffer plate 4 are automatically adjusted to achieve intelligent adjustment.

[0059] Based on application case 1, the edge of the leather curtain 6 is provided with a magnetic sealing strip, which is magnetically connected to the metal frame of the tail belt of the self-moving conveyor to enhance the sealing effect and prevent coal leakage.

[0060] Based on application case 1, the top of the buffer plate 4 is provided with a guide groove, which is connected to the drainage hole of the head side guard plate 1 to drain the accumulated water or coal dust on the surface of the buffer plate 4 and avoid the corrosion of the components due to moisture.

[0061] Based on application case 1, the wear-resistant liner is fixed to the buffer plate 4 by countersunk bolts. The head of the countersunk bolt is embedded in the groove of the liner to avoid direct contact between the bolt head and the coal, thus extending the service life of the liner.

[0062] Based on application case 1, the outer side of the machine head side guard plate 1 is provided with reinforcing ribs, which are distributed in a triangular pattern to enhance the structural strength of the side guard plate and further adapt to high impact conditions.

[0063] As can be seen from the embodiments and application examples, this application has the following advantages over the prior art:

[0064] By adjusting the hinge structure between the chain and the pin, the height and angle of the buffer plate can be adjusted in real time to adapt to changes in the unloading amount and unloading intensity of the scraper conveyor, effectively reducing the impact intensity of coal on the tail belt of the self-propelled conveyor and extending the service life of the belt.

[0065] By using a high-strength wear-resistant plate integral welded structure (such as the head side guard plate and buffer plate), the wear resistance of the components is significantly improved, reducing the need for frequent replacement due to wear and reducing maintenance costs.

[0066] The sealing design of the curtain and cover plate can prevent coal from splashing or leaking during unloading, improve the working environment, and avoid coal spillage from interfering with equipment operation.

[0067] The cooperation between the guide groove and the sliding pin makes the adjustment process of the buffer plate smoother, ensures the accuracy of angle adjustment, and further optimizes the unloading effect.

[0068] By incorporating elastic buffers (such as springs or rubber pads), the impact force during unloading can be absorbed, reducing equipment vibration and improving the stability and reliability of the scraper conveyor operation.

[0069] With its removable wear-resistant liner design, the liner can be quickly replaced when the bottom surface of the buffer plate is severely worn, eliminating the need to replace the entire buffer plate and saving maintenance time and costs.

[0070] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be covered within the protection scope of this utility model.

[0071] Furthermore, it should be understood in the description of this utility model that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0072] Furthermore, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A novel scraper conveyor head buffer plate, characterized in that, include: The machine head side guard plate (1) is a high-strength wear-resistant plate integral welded structure, which is connected to the machine head by bolts; The buffer plate (4) is a high-strength wear-resistant plate integral welded structure, which is hinged to the machine head side guard plate (1) through the pin (2); The adjusting chain (3) is connected at one end to the buffer plate (4) and at the other end to the machine head side guard plate (1) for adjusting the height and angle of the buffer plate (4); Cover plate (5) covers the buffer plate (4) and is fixedly connected to the head side guard plate (1); A leather curtain (6) is placed between the buffer plate (4) and the cover plate (5) to seal the buffer area.

2. The novel scraper conveyor head buffer plate according to claim 1, characterized in that, The adjusting chain (3) is a telescopic chain, and its length can be adjusted to change the tilt angle of the buffer plate (4) relative to the unloading position of the machine head.

3. The novel scraper conveyor head buffer plate according to claim 1, characterized in that, The bottom surface of the buffer plate (4) is provided with a wear-resistant liner, which is detachably installed on the buffer plate (4) by bolts.

4. The novel scraper conveyor head buffer plate according to claim 1, characterized in that, The inner side of the head guard plate (1) is provided with a guide groove, and the two sides of the buffer plate (4) are slidably engaged with the guide groove through the pin (2) to realize the up and down movement of the buffer plate (4).

5. The novel scraper conveyor head buffer plate according to claim 1, characterized in that, An elastic buffer is provided between the buffer plate (4) and the head side guard plate (1), and the elastic buffer includes a spring or a rubber pad.

6. The novel scraper conveyor head buffer plate according to claim 1, characterized in that, The leather curtain (6) is made of flexible and wear-resistant material, and its length can cover the gap between the buffer plate (4) and the tail belt of the self-moving conveyor.

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