Scraper reclaimer flight bar support

Abstract

The utility model discloses a scraper transfer machine coal baffle support relates to coal mine machinery manufacturing technical field, including, middle trough, detachable connection on the coal baffle body of middle trough and be used for installing the coal baffle support of coal baffle body, the coal baffle support includes with the installation of middle trough lateral wall adaptation department, and is used for the support of coal baffle body's support part, the installation has with the arc shape of middle trough lateral wall of close -fitting close -fitting surface, the utility model discloses coal baffle support installation, through installation arc shape close -fitting surface and the mutual orientation of middle trough lateral wall, cooperate at least two along the height interval's positioning hole and form multipoint fixed, effectively avoid the rotation of coal baffle support, and the support part stepped structure can let coal baffle body weight even distribution, prevent single point stress damage, when the impact of coal, polyurethane modified material absorbs part of impact force through elastic deformation.

Description

Technical Field

[0001] This utility model relates to the field of coal mine machinery manufacturing technology, specifically to a coal retaining plate support for a scraper conveyor. Background Technology

[0002] As a piece of equipment connecting the coal mining face and the transportation system in coal mining operations, the scraper conveyor needs to be equipped with coal retaining plates in its central trough to constrain the coal conveying trajectory and prevent coal spillage. The coal retaining plate support is an accessory used to stably install the coal retaining plate. Currently, the coal retaining plate supports in the middle trough of existing transfer machines are made of steel plates and are fixed to the side walls of the middle trough through welding, forming a steel support structure that is compatible with the middle trough and the coal retaining plate. This setup mainly relies on the rigidity of steel to provide basic support for the coal retaining plate. However, in actual underground coal transportation scenarios, When the coal retaining plate is impacted by coal during operation, the steel support will bend and deform due to the impact force. This deformation cannot restore its supporting function through simple repair methods. Since underground coal mines are flammable and explosive dangerous environments, the use of open flame operations such as gas cutting and electric welding is strictly prohibited. As a result, the bent and deformed steel support cannot be repaired on-site underground. The deformed support, along with the central groove, must be disassembled as a whole and transported to the surface. The deformed support is removed by gas cutting, a new steel support is welded, and the component is transported back underground for reinstallation after the repair is completed.

[0003] This process not only directly interrupts the normal operation of the transfer machine, causing the coal mining operation to stagnate and severely impacting production efficiency; at the same time, ground repair involves multiple steps such as gas cutting, welding, and round-trip transportation, resulting in high costs.

[0004] To address these issues, we designed a scraper conveyor coal retaining plate support. Utility Model Content

[0005] The purpose of this utility model is to provide a coal retaining plate support for a scraper conveyor to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides a scraper conveyor coal retaining plate support, comprising a central trough, a coal retaining plate body detachably connected to the central trough, and a coal retaining plate support for mounting the coal retaining plate body; the coal retaining plate support includes an installation part adapted to the side wall of the central trough, and a support part for supporting the coal retaining plate body; the installation part has an arc-shaped fitting surface that fits against the side wall of the central trough, and the support part is stepped to support the coal retaining plate body, and the installation part and the support part are integrally formed.

[0007] Furthermore, the thickness of the mounting portion gradually increases from the end closest to the mounting portion to the end furthest from the mounting portion.

[0008] Furthermore, the mounting part is provided with at least two positioning holes, which are used to insert bolts to achieve a detachable connection between the coal retaining plate support and the central trough.

[0009] Furthermore, at least one reinforcing rib is provided between the mounting part and the support part, and the reinforcing rib extends along the height direction of the support.

[0010] Furthermore, the cross-section of the reinforcing rib is trapezoidal, and the reinforcing rib is integrally formed with the mounting part and the support part.

[0011] Furthermore, the inner wall of the positioning hole is provided with internal threads, which are adapted to the external threads of the bolt.

[0012] Furthermore, it also includes a positioning cup fitted onto the positioning hole, the positioning cup being interference-fitted with the inner wall of the positioning hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. When installing the coal retaining plate support, the arc-shaped fitting surface of the mounting part is positioned against the side wall of the middle trough, and at least two positioning holes spaced along the height form a multi-point fixation, which effectively prevents the coal retaining plate support from rotating; the stepped structure of the support part can evenly distribute the weight of the coal retaining plate body, preventing damage from single-point stress. When impacted by coal, the polyurethane modified material absorbs part of the impact force through elastic deformation.

[0014] 2. The positioning cup is made of elastic rubber and is press-fitted with the positioning hole of the installation part to form a sealing structure. It can continuously fill the gap between the bolt and the positioning hole, effectively blocking the intrusion of coal dust and water vapor in the mine, and preventing the bolt and hole wall from being corroded. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection structure of the coal retaining plate body, the central trough, and the coal retaining plate support in this utility model; Figure 2 This is a first side view of the coal retaining plate support of this utility model; Figure 3 This is a second side view of the coal retaining plate support of this utility model; Figure 4 This is a front view of the coal retaining plate support of this utility model.

[0016] In the diagram: 1. Central trough; 2. Coal retaining plate body; 3. Coal retaining plate support; 31. Installation part; 32. Support part; 33. Positioning hole 4. Positioning the leather cup; 5. Reinforcing ribs. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a coal retaining plate support for a scraper conveyor, comprising a central trough 1, a coal retaining plate body 2 detachably connected to the central trough 1, and a coal retaining plate support 3 for mounting the coal retaining plate body 2; the coal retaining plate support 3 includes an installation part 31 adapted to the side wall of the central trough 1, and a support part 32 for supporting the coal retaining plate body 2; the installation part 31 has an arc-shaped fitting surface that fits against the side wall of the central trough 1, and the support part 32 is stepped to support the coal retaining plate body 2, and the installation part 31 and the support part 32 are integrally formed.

[0019] It should be noted that the coal retaining plate support 3 is made of polyurethane modified material, which has good wear resistance and elasticity and can rebound on its own when subjected to impact.

[0020] In practice, the arc-shaped contact surface of the mounting part 31 can make surface contact with the side wall of the middle trough 1 to ensure the connection stability between the support 3 and the middle trough 1; the stepped structure of the support part 32 can be adapted to the bottom of the coal retaining plate body 2 to distribute the weight of the coal retaining plate body 2 and the force generated by the coal impact to the support part 32, avoiding single-point force concentration.

[0021] See Figure 1-4 The thickness of the mounting portion 31 gradually increases from the end closer to the mounting portion 31 to the end farther away from the mounting portion 31.

[0022] In practice, when the coal retaining plate body 2 is impacted by coal, the impact force is transmitted through the support part 32 to the mounting part 31, and then from the mounting part 31 to the central trough 1. Since the connection between the support part 32 and the mounting part 31 is the point of force transmission, the maximum thickness at this point can enhance the strength and prevent the mounting part 31 from breaking or bending due to excessive force. The force on the end away from the support part 32 gradually decreases, and the reduction in thickness can reduce the overall weight of the support 3 while ensuring strength, thereby reducing the load on the central trough 1.

[0023] See Figure 1-4 The mounting part 31 has at least two positioning holes 33, which are used to insert bolts to achieve a detachable connection between the coal retaining plate support and the central trough 1.

[0024] In practice, after the bolt passes through the positioning hole 33, one end engages with the threaded hole of the central groove 1. The mounting part 31 of the support 3 is pressed onto the side wall of the central groove 1 by the bolt to form a stable connection. The fact that at least two positioning holes 33 are spaced apart along the height direction of the mounting part 31 further enhances the stability of the connection.

[0025] See Figure 1-4 At least one reinforcing rib 5 is provided between the mounting part 31 and the support part 32, and the reinforcing rib 5 extends along the height direction of the support.

[0026] In practice, the impact force transmitted from the coal retaining plate body 2 to the support part 32 can be directly transmitted to the installation part 31, or the stress at the connection corner between the support part 32 and the installation part 31 can be dispersed to the height direction of the entire support 3 through the reinforcing rib 5, so as to avoid stress concentration.

[0027] See Figure 1-4 The cross-section of the reinforcing rib 5 is trapezoidal, and the reinforcing rib 5 is integrally formed with the mounting part 31 and the support part 32.

[0028] In practice, the inclined side of the trapezoidal section allows stress to be gradually transferred along the inclined side, resulting in a more uniform stress distribution compared to a rectangular section.

[0029] See Figure 1-4 The inner wall of the positioning hole 33 is provided with internal threads, which are adapted to the external threads of the bolt.

[0030] In practice, the external thread of the bolt can be fixed by engaging with the internal thread of the positioning hole 33.

[0031] See Figure 1-4 It also includes a positioning cup 4 fitted on the positioning hole 33, and the positioning cup 4 is interference-fitted with the inner wall of the positioning hole 33.

[0032] In practice, the positioning cup 4 is made of elastic rubber material, and the interference fit can completely fill the gap between the positioning hole 33 and the bolt, preventing coal dust, water vapor, and coal slurry from entering the positioning hole 33 and the bolt threads, thus avoiding corrosion.

[0033] Working principle: First, align the mounting part 31 of the coal retaining plate support 3 with the side wall of the central trough 1. Position the mounting part 31 using its arc-shaped contact surface against the side wall of the central trough 1. Next, insert the elastic rubber positioning cup 4 into the positioning hole 33 of the mounting part 31. Because the positioning cup 4 and the hole wall of the positioning hole 33 are interference-fitted, a sealing structure is formed. Then, pass the bolt through the cup and the positioning hole 33. Using the internal thread of the positioning hole 33 to match the bolt, screw it into the threaded hole of the central trough 1. The bolt tightening force presses the mounting part 31 onto the central trough 1. At least two positioning... Holes 33 are spaced along the height to form multi-point fixation, avoiding the scraper conveyor coal retaining plate support. It includes a central trough 1, a coal retaining plate body 2 detachably connected to the central trough 1, and a coal retaining plate support 3 for installing the coal retaining plate body 2. The coal retaining plate support 3 includes an installation part 31 adapted to the side wall of the central trough 1, and a support part 32 for supporting the coal retaining plate body 2. The installation part 31 has an arc-shaped fitting surface that fits against the side wall of the central trough 1, and the support part 32 is stepped to support the coal retaining plate body 2. The installation part 31 and the support part 32 are integrally formed.

[0034] It should be noted that the coal retaining plate support 3 is made of polyurethane modified material, which has good wear resistance and elasticity and can rebound on its own when subjected to impact.

[0035] In practice, the arc-shaped contact surface of the mounting part 31 can make surface contact with the side wall of the middle trough 1 to ensure the connection stability between the coal retaining plate support 3 and the middle trough 1; the stepped structure of the support part 32 can be adapted to the bottom of the coal retaining plate body 2 to distribute the weight of the coal retaining plate body 2 and the force generated by the coal impact to the support part 32, avoiding single-point force concentration.

[0036] See Figure 1-4 The thickness of the mounting portion 31 gradually increases from the end closer to the mounting portion 31 to the end farther away from the mounting portion 31.

[0037] In practice, when the coal retaining plate body 2 is impacted by coal, the impact force is transmitted through the support part 32 to the mounting part 31, and then from the mounting part 31 to the central trough 1. Since the connection between the support part 32 and the mounting part 31 is the point of force transmission, the maximum thickness at this point can enhance the strength and prevent the mounting part 31 from breaking or bending due to excessive force. The force on the end away from the support part 32 gradually decreases, and the reduced thickness can reduce the overall weight of the coal retaining plate support 3 while ensuring strength, thereby reducing the load on the central trough 1.

[0038] See Figure 1-4 The mounting part 31 has at least two positioning holes 33, which are used to insert bolts to achieve a detachable connection between the coal retaining plate support and the central trough 1.

[0039] In practice, after the bolt passes through the positioning hole 33, one end engages with the threaded hole of the central groove 1. The bolt presses the mounting part 31 of the coal retaining plate support 3 onto the side wall of the central groove 1, forming a stable connection. The fact that at least two positioning holes 33 are spaced apart along the height direction of the mounting part 31 further enhances the stability of the connection.

[0040] See Figure 1-4 At least one reinforcing rib 5 is provided between the mounting part 31 and the support part 32, and the reinforcing rib 5 extends along the height direction of the support.

[0041] In practice, the impact force transmitted from the coal retaining plate body 2 to the support part 32 can be directly transmitted to the installation part 31, or the stress at the connection corner between the support part 32 and the installation part 31 can be dispersed to the height direction of the entire coal retaining plate support 3 through the reinforcing rib 5, so as to avoid stress concentration.

[0042] See Figure 1-4 The cross-section of the reinforcing rib 5 is trapezoidal, and the reinforcing rib 5 is integrally formed with the mounting part 31 and the support part 32.

[0043] In practice, the inclined side of the trapezoidal section allows stress to be gradually transferred along the inclined side, resulting in a more uniform stress distribution compared to a rectangular section.

[0044] See Figure 1-4 The inner wall of the positioning hole 33 is provided with internal threads, which are adapted to the external threads of the bolt.

[0045] In practice, the external thread of the bolt can be fixed by engaging with the internal thread of the positioning hole 33.

[0046] See Figure 1-4 It also includes a positioning cup 4 fitted on the positioning hole 33, and the positioning cup 4 is interference-fitted with the inner wall of the positioning hole 33.

[0047] In practice, the positioning cup 4 is made of elastic rubber material, and the interference fit can completely fill the gap between the positioning hole 33 and the bolt, preventing coal dust, water vapor, and coal slurry from entering the positioning hole 33 and the bolt threads, thus avoiding corrosion.

[0048] Working principle: First, align the mounting part 31 of the coal retaining plate support 3 with the side wall of the middle channel 1. Use the arc-shaped contact surface of the mounting part 31 to position it with the side wall of the middle channel 1. Then, fit the positioning cup 4 made of elastic rubber into the positioning hole 33 of the mounting part 31. Because the positioning cup 4 and the hole wall of the positioning hole 33 are interference fit, a sealing structure is formed. Then, pass the bolt through the cup and the positioning hole 33. With the help of the internal thread of the positioning hole 33 and the bolt, screw it into the threaded hole of the middle channel 1. The mounting part 31 is pressed onto the middle channel 1 by the bolt tightening force. At least two positioning holes 33 are set at intervals along the height to form multi-point fixation to prevent the coal retaining plate support 3 from rotating. At the same time, align the bottom of the coal retaining plate body 2 with the stepped structure of the support part 32 of the coal retaining plate support 3 so that the weight of the coal retaining plate body 2 is evenly distributed on the steps to avoid single-point stress. When coal impacts the coal retaining plate body 2, the impact force is first transmitted to the support part 32. At the same time, the polyurethane modified material of the coal retaining plate support 3 absorbs part of the impact through elastic deformation. Then, part of the impact force is directly transmitted to the installation part 31. The installation part 31 is designed to be thicker near the support part 32 and thinner away from the support part 32, so that the strength of the stress concentration point is higher and fracture is avoided. Another part is transmitted through the reinforcing rib 5. The trapezoidal cross-section reinforcing rib 5 extending along the height disperses the stress at the connecting corner to the entire coal retaining plate support 3. The positioning cup 4 continuously fills the gap between the bolt and the positioning hole 33, blocking underground coal dust and water vapor, and avoiding corrosion of the bolt and hole wall. At the same time, it aligns the bottom of the coal retaining plate body 2 with the stepped structure of the support part 32 of the coal retaining plate support 3, so that the weight of the coal retaining plate body 2 is evenly distributed on the steps, avoiding single-point stress. When coal impacts the coal retaining plate body 2, the impact force is first transmitted to the support part 32. At the same time, the polyurethane modified material of the coal retaining plate support 3 absorbs part of the impact through elastic deformation. Then, part of the impact force is directly transmitted to the installation part 31. The installation part 31 is designed to be thicker near the support part 32 and thinner away from the support part 32, so that the strength of the stress concentration point is higher and fracture is avoided. The other part is transmitted through the reinforcing rib 5. The trapezoidal cross-section reinforcing rib 5 extending along the height disperses the stress at the connecting corner to the entire coal retaining plate support 3. The positioning cup 4 continuously fills the gap between the bolt and the positioning hole 33, blocking underground coal dust and water vapor and avoiding corrosion of the bolt and hole wall.

Claims

1. A coal retaining plate support for a scraper conveyor, characterized in that, Includes a central trough (1), a coal retaining plate body (2) detachably connected to the central trough (1), and a coal retaining plate support (3) for installing the coal retaining plate body (2). The coal retaining plate support (3) includes an installation part (31) adapted to the side wall of the central trough (1) and a support part (32) for supporting the coal retaining plate body (2). The mounting part (31) has an arc-shaped fitting surface that fits against the side wall of the central trough (1), and the support part (32) is stepped to support the coal retaining plate body (2). The mounting part (31) and the support part (32) are integrally formed.

2. The scraper conveyor coal retaining plate support as described in claim 1, characterized in that: The thickness of the mounting portion (31) gradually increases from the end closer to the mounting portion (31) to the end farther away from the mounting portion (31).

3. The scraper conveyor coal retaining plate support as described in claim 1, characterized in that: The mounting part (31) is provided with at least two positioning holes (33), which are used to insert bolts to achieve a detachable connection between the coal retaining plate support and the central trough (1).

4. The scraper conveyor coal retaining plate support as described in claim 1, characterized in that: At least one reinforcing rib (5) is provided between the mounting part (31) and the support part (32), and the reinforcing rib (5) extends along the height direction of the support.

5. The scraper conveyor coal retaining plate support as described in claim 4, characterized in that: The cross section of the reinforcing rib (5) is trapezoidal, and the reinforcing rib (5) is integrally formed with the mounting part (31) and the support part (32).

6. The scraper conveyor coal retaining plate support as described in claim 3, characterized in that: The inner wall of the positioning hole (33) is provided with an internal thread, which is adapted to the external thread of the bolt.

7. The scraper conveyor coal retaining plate support as described in claim 3, characterized in that: It also includes a positioning cup (4) fitted on the positioning hole (33), the positioning cup (4) being interference-fitted with the inner wall of the positioning hole (33).

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