A guiding and adjusting device and coal charging system for a coal support base.

Abstract

This utility model discloses a guiding and adjusting device for a coal-supporting bottom plate and a coal charging system. The guiding and adjusting device includes: an adjusting seat, movably mounted on a foundation beam; a pulley, rotatably mounted on the adjusting seat, with its axis perpendicular to the plane of the coal-supporting bottom plate and its rim capable of forming line contact with the coal-supporting bottom plate; an adjusting top seat, mounted on the foundation beam and located on the side of the adjusting seat away from the coal-supporting bottom plate, the adjusting top seat having a threaded hole; and an adjusting screw, cooperating with the threaded hole of the adjusting top seat, the adjusting screw being able to rotate to push the adjusting seat to move, thereby driving the pulley closer to the coal-supporting bottom plate. This utility model addresses how to control and adjust the deviation of the coal-supporting bottom plate during operation by designing a guiding and adjusting device. This device is installed on the foundation beam between the coal box and the carbonization chamber. Through this guiding and adjusting device, the deviation of the coal-supporting bottom plate can be effectively adjusted, thereby reducing the wear of the coal-supporting bottom plate on the carbonization chamber and improving the coal charging success rate.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a guiding and adjusting device and a coal loading system for a coal support bottom plate. Background Technology

[0002] The SCP machine (short for SCP) is an integrated machine that combines tamping, coke pushing, and coal charging functions. The main function of the tamping coke oven charging system is to load the tamped coal cakes from the side of the coke oven into the carbonization chamber. The charging system uses a drive sprocket and chain to move the charging device connected to the chain back and forth in a straight line on a slide, thereby loading the coal cakes from the coal support plate of the charging device into the coke oven carbonization chamber. Therefore, the coal support plate is a crucial component of the charging device.

[0003] During coal loading, a power unit drives a ring chain with a connecting seat for a coal-supporting bottom plate mounted on it. This causes the bottom plate to move back and forth, loading the coal cakes from the bottom plate into the coke oven's carbonization chamber. Since the ring chain is a single chain, the bottom plate is primarily guided by fixed guide plates at the coal box and rear end. However, the bottom plate needs to move forward more than 16 meters during loading, and there are no guiding devices after it exits the coal box. Furthermore, due to friction and wear between the fixed guide plates and the bottom plate during operation, the bottom plate is prone to deviation after the guide plates wear down. If the deviation exceeds the pre-reserved gap between the carbonization chamber and one side of the bottom plate, the bottom plate will wear down the side wall of the carbonization chamber during loading, damaging the chamber and potentially causing the coal cakes to collapse during loading.

[0004] In view of this, the existing technology should be improved in order to solve the aforementioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a guiding and adjusting device for a coal support plate. It is designed to control the deviation of the coal support plate during operation and adjust the deviation amount. The device is installed on the foundation beam between the coal box and the carbonization chamber. The deviation amount of the coal support plate can be effectively adjusted through this guiding and adjusting device, thereby reducing the wear of the coal support plate on the carbonization chamber and improving the coal loading success rate.

[0006] According to one aspect of this utility model, a guiding and adjusting device for a coal support bottom plate is provided, comprising:

[0007] Adjustment seat, which is movably mounted on the foundation beam;

[0008] The pulley is rotatably mounted on the adjusting seat. The axis of the pulley is perpendicular to the plane of the coal support plate, and the rim of the pulley can form line contact with the coal support plate.

[0009] An adjusting top seat is mounted on the foundation beam and located on the side of the adjusting seat opposite to the coal support plate. The adjusting top seat is provided with threaded holes.

[0010] The adjusting screw engages with the threaded hole of the adjusting top seat. The adjusting screw can rotate to push the adjusting seat to move, thereby driving the pulley closer to the coal support plate.

[0011] According to one embodiment of the present invention, the adjusting seat is provided with a sliding groove extending along the moving direction of the adjusting seat, and the guiding adjusting device further includes a fixing component, which passes through the sliding groove and fixes the adjusting seat to the foundation beam.

[0012] According to one embodiment of the present invention, the pulley is mounted on the adjusting seat via a stepped shaft, the stepped shaft including a small diameter section and a large diameter section, wherein the pulley is mounted on the small diameter section and abuts against the end face of the large diameter section.

[0013] According to one embodiment of the present invention, the coal support plate can slide along the slide rail on the foundation beam, and the height of the large diameter section is equal to or higher than the height of the slide rail, so that the rim of the pulley only contacts the coal support plate.

[0014] According to one embodiment of the present invention, a connecting hole is provided at the upper end of the stepped shaft, and the guide adjustment device further includes a pressure cap and a fastener that mates with the connecting hole. The pressure cap is fixed to the upper end of the stepped shaft by the fastener and is used to axially restrict the pulley on the small diameter section of the stepped shaft.

[0015] According to one embodiment of the present invention, a bearing is installed inside the pulley, and the bearing is fitted onto the small diameter section of the stepped shaft.

[0016] According to one embodiment of the present invention, a bushing is embedded in the pulley, and the bushing is clearance-fitted with the small diameter section of the stepped shaft.

[0017] According to another aspect of this utility model, a coal charging system is provided, comprising:

[0018] Two parallel foundation beams, each equipped with a sliding track;

[0019] The coal support plate is slidably mounted on two slide rails.

[0020] Drive unit, drive unit is used to drive the coal support bottom plate to slide; and

[0021] At least two guiding adjustment devices as described in any of the above technical solutions are provided, and at least two guiding adjustment devices are symmetrically arranged on both sides of the coal support plate.

[0022] According to one embodiment of the present invention, the coal loading system further includes two fixed guide plates symmetrically arranged on both sides of the coal support base plate, and the distance between the pulleys in the two symmetrically arranged guide adjustment devices is the same as the distance between the two symmetrically arranged fixed guide plates.

[0023] According to one embodiment of the present invention, the distance between the pulleys in the two symmetrically arranged guide adjustment devices is greater than the width of the coal support plate, and the difference between the distance and the width is less than a predetermined value.

[0024] Compared with existing technologies, this utility model designs a guiding adjustment device to control the deviation of the coal support plate during operation and adjust the deviation amount. The device is installed on the foundation beam between the coal box and the carbonization chamber. The deviation amount of the coal support plate can be effectively adjusted through this guiding adjustment device, thereby reducing the wear of the coal support plate on the carbonization chamber and improving the coal loading success rate. It has good application value and is suitable for market promotion and use. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some implementation examples of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A front view schematic diagram of a guiding adjustment device for a coal support plate according to an exemplary embodiment of the present invention is shown;

[0027] Figure 2 The diagram shows a top view of a coal-supporting bottom plate in a guiding adjustment device according to an exemplary embodiment of the present invention, with the bottom plate in a retracted state (retracted into the coal box).

[0028] Figure 3 The diagram shows a top view of the coal-supporting bottom plate in the pre-limit time (state during coal loading) of a guiding adjustment device for a coal-supporting bottom plate according to an exemplary embodiment of the present invention.

[0029] Figure 4 A schematic diagram of the installation structure of a guiding adjustment device for a coal support bottom plate according to an exemplary embodiment of the present invention is shown;

[0030] Figure 5 A top view schematic diagram of a guiding adjustment device for a coal support plate according to an exemplary embodiment of the present invention is shown.

[0031] In the diagram:

[0032] 1. Foundation beam; 2. Guiding and adjusting device; 3. Slide rail; 4. Coal support plate; 5. Guide plate;

[0033] 201. Slide groove; 202. Adjusting seat; 203. Pulley; 204. Pressure cap; 205. Screw; 206. Bearing; 207. Fixing bolt; 208. Stepped shaft; 209. Adjusting top seat; 210. Adjusting screw. Detailed Implementation

[0034] The following detailed description of the embodiments is used to exemplify the principles of the present invention, but should not be used to limit the scope of the present invention. The present invention can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0035] These embodiments are provided to make this disclosure thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0036] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model and simplifying the description, and do not 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. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0038] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0039] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0040] The coal charging system mainly consists of a drive unit, a ring chain, a foundation beam 1, a slide rail 3 installed on the foundation beam 1, a coal support plate 4 placed on the slide rail 3, and a connecting seat for the coal support plate 4. During coal charging, the drive unit drives the ring chain, on which the connecting seat for the coal support plate 4 is installed, thereby driving the coal support plate 4 to move back and forth, loading the coal cake on the coal support plate 4 into the coke oven carbonization chamber.

[0041] like Figure 1 and Figure 5 As shown, this utility model provides a guiding adjustment device 2 for a coal support base plate 4, which includes: an adjustment seat 202, which is movably mounted on a foundation beam 1; a pulley 203, which is rotatably mounted on the adjustment seat 202, with its axis perpendicular to the plane of the coal support base plate 4, and the rim of the pulley 203 forming line contact with the coal support base plate 4. Compared with the surface contact with the guide plate 5, this reduces frictional resistance and makes it less likely for the coal support base plate 4 to collide when entering the guiding adjustment device 2; and an adjustment top seat 209, which is mounted on the foundation beam 1 and located on the side of the adjustment seat 202 away from the coal support base plate 4. 209 is provided with a threaded hole; and an adjusting screw 210. The adjusting screw 210 is engaged with the threaded hole of the adjusting top seat and is rotatably mounted on the adjusting top seat 209. One end of the adjusting screw 210 abuts against the adjusting seat 202. Rotating the adjusting screw 210 pushes the adjusting seat 202 to move, thereby driving the pulley 203 closer to the coal support bottom plate 4. The adjusting screw 210 can also be rotated to move away from the adjusting seat 202, thereby allowing the adjusting seat 202 and the pulley 203 on it to move away from the coal support bottom plate 4. The distance between the guiding adjusting device 2 and the coal support bottom plate 4 can be effectively adjusted by adjusting the adjusting screw 210, thereby reducing the deviation of the coal support bottom plate 4 during operation.

[0042] In the guiding adjustment device 2 of the coal support plate 4 according to the embodiment of the present utility model, it is designed to control the deviation of the coal support plate 4 during operation and adjust the deviation amount of the coal support plate 4. The device is installed on the foundation beam 1 between the coal box and the carbonization chamber. The deviation amount of the coal support plate 4 can be effectively adjusted through the guiding adjustment device 2, thereby reducing the wear of the coal support plate 4 on the carbonization chamber and improving the coal loading success rate. It has significant improvement effects in terms of safety, operability, maintenance ability and adaptability, and has good application value. It is suitable for market promotion and use.

[0043] In some specific embodiments, the adjusting seat 202 is provided with a groove 201 extending along the moving direction of the adjusting seat 202. The guiding adjustment device also includes a fixing component, which passes through the groove 201 and slidably mounts the adjusting seat 202 onto the foundation beam 1. The groove 201 provides sliding space for the adjusting seat 202, allowing the adjusting seat 202 to move flexibly in the required direction, facilitating precise adjustment of the distance between it and the coal support plate 4 via a screw. The fixing component passing through the groove 201 can both stably constrain the sliding trajectory of the adjusting seat 202 and reliably fix the adjusting seat 202 after adjustment, preventing it from loosening during operation. This balances adjustment flexibility and structural stability, helps to accurately control the deviation of the coal support plate 4, reduces wear, and improves the success rate of coal loading.

[0044] Specifically, the fixing component is the fixing bolt 207.

[0045] Based on the above embodiments, pulley 203 is installed on adjusting seat 202 via stepped shaft 208. Stepped shaft 208 includes a small diameter section and a large diameter section. Pulley 203 is installed on the small diameter section and abuts against the end face of the large diameter section. Coal support plate 4 can slide along slide rail 3 on foundation beam 1. The height of the large diameter section is equal to or slightly higher than the height of slide rail 3 (the height difference is less than a predetermined value, which can be set according to actual conditions, for example, 5mm), so that the wheel rim of pulley 203 only contacts coal support plate 4. The small diameter section of stepped shaft 208 provides a stable installation position for pulley 203. The height setting of the large diameter section ensures that the wheel rim of pulley 203 only contacts coal support plate 4, avoiding interference with slide rail 3 and other components, reducing unnecessary friction and wear; at the same time, it prevents guide deviation caused by pulley 203 contacting non-target components, ensuring guide accuracy, helping to stably control the deviation of coal support plate 4, reducing wear on the carbonization chamber, reducing the risk of coal cake collapse, and improving the coal loading success rate.

[0046] In some specific embodiments, the upper end of the stepped shaft 208 is provided with a connecting hole. The guiding adjustment device also includes a pressure cap 204 and a fastener that mates with the connecting hole. The pressure cap 204 is fixed to the upper end of the stepped shaft 208 by the fastener and is used to axially restrict the pulley 203 on the small diameter section of the stepped shaft 208. Specifically, the fastener is a screw 205. The threaded hole at the upper end of the stepped shaft 208, in conjunction with the pressure cap 204 and the screw 205, can firmly fix the pulley 203 axially on the small diameter section, preventing the pulley 203 from axially shifting during operation and ensuring stable contact with the coal support plate 4. At the same time, it does not affect the flexible rotation of the pulley 203 around the small diameter section, which not only ensures the guiding accuracy but also reduces deviation caused by the loosening of the pulley 203, reduces friction and wear, and improves the structural stability and service life of the device.

[0047] Based on the above embodiments, a bearing 206 is installed inside the pulley 203, and the bearing 206 is fitted onto the small-diameter section of the stepped shaft 208. The installation of the bearing 206 inside the pulley 203 and its fitting onto the small-diameter section of the stepped shaft 208 significantly reduces the frictional resistance between the pulley 203 and the stepped shaft 208, making the pulley 203 rotate more flexibly and reducing obstruction to the operation of the coal support plate 4. Simultaneously, the bearing 206, in conjunction with the small-diameter section of the stepped shaft 208, ensures stable rotation of the pulley 203, and, combined with the pressure cover 204 for fixation, prevents axial movement of the pulley 203, ensuring stable contact with the coal support plate 4.

[0048] Preferably, the bearing 206 is a bearing 206 that bears radial force, such as a cylindrical roller bearing 206.

[0049] In some specific embodiments, a bushing is embedded inside the pulley 203, and the bushing is clearance-fitted with the small-diameter section of the stepped shaft 208. The bushing embedded inside the pulley and its clearance fit with the small-diameter section of the stepped shaft 208 reduces direct friction and wear between the pulley 203 and the stepped shaft 208, protecting their contact surfaces and extending their service life. The clearance fit ensures that the pulley 203 rotates flexibly, reducing the running resistance to the coal support plate 4. Simultaneously, the bushing stably constrains the rotation trajectory of the pulley 203, preventing wobbling and ensuring stable contact with the coal support plate 4, reducing the risk of deviation.

[0050] Based on the above embodiments, the pulley 203 can also be directly machined as a whole without bearing 206 or bushing, and the inner diameter of the pulley 203 is clearance-fitted with the minor diameter of the stepped shaft 208.

[0051] In some specific embodiments, the processed adjusting top seat 209 is welded to the foundation beam 1. When the adjusting screw 210 rotates inward, it can effectively push the force against the adjusting top seat 209, causing the adjusting top seat 209 to move, thereby causing the pulley 203 to contact the coal support plate 4, or the coal support plate 4 to move under force, thus achieving the effect of controlling the deviation of the coal support plate 4 and adjusting the deviation amount.

[0052] refer to Figures 2 to 4Based on the above embodiments, the guiding adjustment device 2 is symmetrically arranged on both sides of the coal support plate 4. The symmetrical arrangement of the guiding adjustment device 2 on both sides of the coal support plate 4 provides balanced constraint on the coal support plate 4 from both sides, preventing the aggravation of tilt caused by unilateral force; it facilitates precise control of the centerline position of the coal support plate 4 through synchronous or separate adjustment of the lead screws on both sides, effectively counteracting the tendency to deviate; the dual-sided guidance stabilizes the running trajectory of the coal support plate 4, reduces unilateral wear, lowers the risk of damage to the carbonization chamber and collapse, and improves the stability and success rate of the coal loading process.

[0053] This application also proposes a coal loading system, comprising: two parallel foundation beams, each foundation beam having a slide rail; a coal support plate slidably disposed on the two slide rails; a driving device for driving the coal support plate to slide; and at least two guiding and adjusting devices as described in any of the above technical solutions, the at least two guiding and adjusting devices being symmetrically disposed on both sides of the coal support plate.

[0054] In some specific embodiments, the coal loading system also includes two fixed guide plates 5 symmetrically arranged on both sides of the coal support base plate. The distance between the pulleys 203 in the two symmetrically arranged guide adjustment devices 2 is consistent with the distance between the symmetrically arranged fixed guide plates 5. This arrangement ensures that when the coal support base plate 4 transitions from the fixed guide plate 5 in the coal box to the guide adjustment device 2, the distance between the two sides is consistent, avoiding collisions or force imbalances caused by sudden changes in distance, thus ensuring guidance continuity. It can form a continuous guidance constraint, reduce the attitude fluctuations of the coal support base plate 4 during operation, enhance guidance stability, and help to accurately control deviation.

[0055] Based on the above embodiments, the distance between the pulleys 203 in the two symmetrically arranged guide adjustment devices 2 is greater than the width of the coal support plate 4. The distance between the two symmetrically arranged pulleys 203 is slightly greater than the width of the coal support plate 4, which not only provides reasonable movement space for the coal support plate 4, reducing frictional resistance and jamming risk during operation, but also effectively limits its deviation through the constraint of the double-sided pulleys 203, avoiding guide failure due to excessive spacing or collision caused by insufficient spacing, and ensuring that the coal support plate 4 runs stably along the predetermined trajectory.

[0056] In some specific embodiments, multiple sets of guiding adjustment devices 2 are installed on the foundation beam 1 between the coal box and the carbonization chamber along the running direction of the coal support plate 4. These multiple sets of guiding adjustment devices 2 are distributed along the running direction of the coal support plate 4, and the multi-point support can disperse the guiding force, reduce wear on individual devices, and extend their service life; ensure that the coal support plate 4 is stably guided throughout the entire process, effectively control the deviation, reduce wear on the carbonization chamber and the risk of coal cake collapse, and significantly improve the coal loading success rate.

[0057] The installation method for the adjusting guide device is as follows: The adjusting guide device is installed on the foundation beam 1 using fixing bolts 207, and symmetrically installed on both sides of the coal support base plate 4, aligned with the same center line as the coal support base plate 4. Since several pairs of fixed guide plates 5 are symmetrically installed on both sides of the coal support base plate 4 when it is not in operation within the coal box, the distance between the pulleys 203 of the two symmetrical adjusting guide devices is consistent with the distance between the two symmetrical fixed guide plates 5. During new installation, the distance between the symmetrical fixed guide plates 5 or the adjusting guide device is slightly larger (generally 3-5 mm) than the width of the coal support base plate 4.

[0058] Adjustment method of the guiding device: When the fixed guide plate 5 is gradually worn, the coal support plate 4 will gradually deviate from its original position because it is driven forward by a single chain into the carbonization chamber (moving a distance of about 16 meters). When the deviation exceeds the reserved gap between the coal support plate 4 and the carbonization chamber, it will cause wear on the side wall of the carbonization chamber. When adjusting the guiding device, loosening the fixing bolt 207 and rotating the adjusting screw 210 inward can effectively push the force against the adjusting seat 202, causing the adjusting seat 202 to move. This, in turn, causes the pulley 203 and the coal support plate 4 to move under force, thereby controlling the deviation of the coal support plate 4 and adjusting the deviation amount.

[0059] Adjustment method of the guiding device: Since the coal support plate 4 is deviating, it is known whether the deviation is to the left or the right. If it is to the left, push the left guiding device to the right to move the coal support plate 4 to the right. After adjustment, the coal support plate 4 will be restored to the original center line or slightly beyond the original center line. At the same time, loosen the right guiding device and move it to the right. Always keep the distance between the two symmetrical adjusting guiding devices greater than the width of the coal support plate 4. After adjustment, tighten the fixing bolt 207.

[0060] Explanation of the use of pulley 203 for adjusting the guide device: Since the center of the two symmetrical adjusting guide devices changes after adjustment, pulley 203 is used for guidance to avoid collision when the coal support plate 4 enters.

[0061] Multiple sets of the adjusting guide device can be installed on the foundation beam 1 between the coal box and the carbonization chamber, or it can be installed at the front end of the coal support plate 4 when it is stationary inside the coal box, so that it has a guiding and fixing function when it is stationary at the rear limit.

[0062] This utility model is a solution to the problem of SCP machine application. However, nowadays, tamping coke ovens are widely used. The coke oven machine side equipment used, whether it is an integrated SCP machine or a separate equipment coal charging car, can be equipped with the guiding adjustment device 2 at the front or rear section of both sides of the coal charging device slide 3. Therefore, it provides an effective solution to the problem of the coal support bottom plate 4 running off course, and has a certain promotion and reference value.

[0063] Those skilled in the art should understand that, in the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components.

[0064] The discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the framework of the present invention, technical features of the above embodiments or different embodiments can also be combined, and many other variations of different aspects of the present invention exist, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A guiding and adjusting device for a coal support bottom plate, characterized in that, include: An adjusting seat, which is movably mounted on the foundation beam; A pulley is rotatably mounted on the adjusting seat, the axis of the pulley is perpendicular to the plane of the coal support plate, and the rim of the pulley can form line contact with the coal support plate; An adjusting top seat is provided on the foundation beam and located on the side of the adjusting seat away from the coal support bottom plate. The adjusting top seat is provided with a threaded hole. as well as An adjusting screw engages with a threaded hole in the adjusting top seat. The adjusting screw can rotate to move the adjusting seat, thereby causing the pulley to move closer to the coal support plate.

2. The guide adjustment device for a coal floor support according to claim 1, characterized by, The adjusting seat has a sliding groove extending along the moving direction of the adjusting seat. The guiding adjusting device also includes a fixing component, which passes through the sliding groove and fixes the adjusting seat to the foundation beam.

3. The guide adjustment device for a coal floor support according to claim 1, characterized by, The pulley is mounted on the adjusting seat via a stepped shaft, the stepped shaft including a small diameter section and a large diameter section, wherein the pulley is mounted on the small diameter section and abuts against the end face of the large diameter section.

4. The guide adjustment device for a coal floor support according to claim 3, characterized by, The coal support plate can slide along the slide rail on the foundation beam. The height of the large-diameter section is equal to or higher than the height of the slide rail, so that the rim of the pulley only contacts the coal support plate.

5. The guide adjustment device for supporting a coal floor according to claim 3, wherein The upper end of the stepped shaft is provided with a connecting hole. The guide adjustment device also includes a pressure cap and a fastener that mates with the connecting hole. The pressure cap is fixed to the upper end of the stepped shaft by the fastener and is used to axially restrict the pulley on the small diameter section of the stepped shaft.

6. The guide adjustment device for a coal bed support according to claim 3, wherein The pulley is fitted with a bearing, which is mounted on the small-diameter section of the stepped shaft.

7. The guiding and adjusting device for a coal support bottom plate according to claim 3, characterized in that, The pulley is fitted with a bushing, and the bushing is clearance-fitted with the small diameter section of the stepped shaft.

8. A coal charging system characterized by comprising: include: Two parallel foundation beams, each equipped with a slide rail; A coal-supporting bottom plate, which is slidably disposed on the two slide rails; A driving device is used to drive the coal-supporting bottom plate to slide. as well as At least two guiding adjustment devices as described in any one of claims 1-7, wherein the at least two guiding adjustment devices are symmetrically arranged on both sides of the coal support plate.

9. The coal charging system according to claim 8, wherein The coal loading system also includes two fixed guide plates symmetrically arranged on both sides of the coal support base plate, and the distance between the pulleys in the two symmetrically arranged guide adjustment devices is the same as the distance between the two symmetrically arranged fixed guide plates.

10. The coal charging system according to claim 8, wherein The distance between the pulleys in the two symmetrically arranged guide adjustment devices is greater than the width of the coal support plate, and the difference between the distance and the width is less than a predetermined value.

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