Belt conveyor self-moving tail side adjusting mechanism

Abstract

The utility model provides a belt conveyor self -moving machine tail side adjusting mechanism, including being arranged in the below of at least one intermediate frame of self -moving machine tail at least one horizontal push mechanism, the horizontal push mechanism includes the box body of transverse crossing below intermediate frame, the box body with intermediate frame can detachably connect, the length direction of box body's both sides sets up support part respectively, and the support part of each side and the box body between respectively sets up linear drive mechanism connection, the extension direction of two linear drive mechanisms is opposite. The whole horizontal push mechanism of the utility model can adjust flexibly with the position adjustment of intermediate frame, satisfies the side push demand of different position of belt conveyor tail. Realize the flexible adjustment of belt conveyor tail in the width direction in the roadway, to adapt to the change of roadway width and shape.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining machinery, specifically relating to a self-moving tail-side adjustment mechanism for a belt conveyor. Background Technology

[0002] In underground coal mine roadways, belt conveyors are crucial for coal transportation, and the position adjustment of their tail section is vital for ensuring both efficiency and safety. To reduce the number of retractions, self-moving tail sections of long-stroke belt conveyors have become increasingly common in recent years. Compared to the traditional self-moving tail sections requiring a three-cut-one-push mechanism, long-stroke belt conveyors with self-moving tail sections are longer, less rigid, and more difficult to move. As the working face moves through the roadway, the self-moving tail section of a long-stroke belt conveyor moves forward. When the roadway width, especially the bottom width, changes, the distance between the self-moving tail section and the roadway edge is affected, causing it to deviate from its optimal transportation position, impacting transportation efficiency and the safe operation of the equipment.

[0003] Currently, the industry typically uses small side-shifting cylinders on the side-shifting beam for minor adjustments. However, this method can only slightly alter the posture of the tailstock and cannot significantly adjust the overall posture of the machine. This is especially true for long-stroke belt conveyors with self-moving tails and long bodies, where side-shifting beam adjustments have significant limitations. For example: Small adjustment range: The short stroke of the side-shifting cylinder allows for only fine adjustments, making it impossible to significantly adjust the distance between the machine and the roadway edge based on changes in roadway width, and thus unable to correct large positional deviations. Low adjustment force and efficiency: The small side-shifting cylinder has low thrust, requiring high flatness of the base plate during side-shifting, necessitating frequent manual intervention and downtime, thus affecting production continuity. Poor adaptability to roadway changes: Traditional mechanisms cannot respond in real time to dynamic changes in roadway width, easily causing collisions between the belt conveyor and the roadway wall, increasing equipment wear and the risk of failure. In existing patents, most adjustment mechanisms adjust the offset angle between the frame and the belt's running center to achieve left-right movement of the frame relative to the base. These adjustments cannot achieve changes in the roadway, such as the structure in patent CN113247568A, a device for a wide-range lateral movement of a belt conveyor's self-moving tail. Summary of the Invention

[0004] This utility model provides a self-moving tail-side adjustment mechanism for a belt conveyor.

[0005] The purpose of this utility model is achieved in the following manner: a self-moving tail-side adjustment mechanism for a belt conveyor, comprising at least one transverse push mechanism disposed below at least one intermediate frame of the self-moving tail; the transverse push mechanism includes a box that passes laterally through the lower part of the intermediate frame, the box and the intermediate frame are detachably connected, support parts are respectively provided on both sides of the box in the length direction, and a linear drive mechanism is respectively provided between the support part on each side and the box; the extension directions of the two linear drive mechanisms are opposite.

[0006] The intermediate frame has a through slot in the width direction, and the housing and the linear drive mechanism are disposed in the through slot; a mounting plate is disposed in the through slot; the length direction of the mounting plate is along the width direction of the intermediate frame, and the mounting plate and the housing are detachably connected and the connection position is adjustable, thereby realizing the adjustable relative position of the housing in the width direction of the intermediate frame.

[0007] The mounting plate has two mounting holes along its length with a hole spacing of a; the housing has a row of mounting holes along its length with hole spacings of b and c, and the sum of the hole spacings of any four adjacent mounting holes is 2b+c; where 2b+c=a.

[0008] A horizontal plate with the same length direction as the box body is provided on one side of the width direction, and a vertical plate is provided on the horizontal plate; the vertical plate, the horizontal plate and the corresponding side of the box body form a narrow and long groove; a row of mounting holes is provided on the vertical plate; the mounting plate of the intermediate frame is provided in the narrow and long groove, and the box body is connected to the mounting holes on the mounting plate through the mounting holes on the vertical plate.

[0009] The box is hollow, and each of the two ends of the box along its length is slidably provided with a side-shifting rod; the other end of each side-shifting rod is connected to the support part on the corresponding side.

[0010] The linear drive mechanism is a hydraulic cylinder with a stroke ≥1000mm; two mounting seats are fixedly installed on the housing, one end of the hydraulic cylinder is hinged to the mounting seat, and the other end of the hydraulic cylinder is hinged to the support part; the side shift rod is also hinged to the support part; the contact surface between the support part and the coal wall is a boat-shaped structure.

[0011] The two non-adjacent intermediate frames of the self-moving tail section are respectively connected to their respective lateral push mechanisms.

[0012] Compared to existing technologies, the entire lateral pushing mechanism of this invention can be flexibly adjusted according to the position of the intermediate frame, meeting the lateral pushing requirements of different positions at the tail of the belt conveyor. This enables flexible adjustment of the belt conveyor tail in the width direction within the tunnel to adapt to changes in tunnel width and shape, while ensuring stable operation and a longer service life of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram (top view) of the structural principle of this utility model.

[0014] Figure 2 This is a three-dimensional schematic diagram of the combination of the intermediate frame and the horizontal pushing mechanism.

[0015] Figure 3 This is a three-dimensional view of the middle frame from below.

[0016] Figure 4 This is a 3D schematic diagram of the horizontal pushing mechanism (with the top cover of the box hidden).

[0017] Figure 5 This is a schematic diagram of the box.

[0018] Figure 6 This is a schematic diagram showing the spatial arrangement of the mounting holes on the enclosure.

[0019] Figure 7 This is a schematic diagram of a lateral shift rod.

[0020] Figure 8 This is a schematic diagram of the support section.

[0021] Among them, 1 is the head frame, 2 is the middle frame, 20 is the mounting plate, 3 is the tail frame, 4 is the horizontal push mechanism, 5 is the box body, 50 is the horizontal plate, 51 is the vertical plate, 52 is the narrow long slot, 53 is the mounting base, 6 is the support part, 7 is the linear drive mechanism, 8 is the mounting hole, and 9 is the side shift rod. Detailed Implementation

[0022] In this utility model, unless otherwise expressly specified and limited, the technical terms used in this application shall have the ordinary meaning understood by those skilled in the art. Terms such as "connected," "linked," "fixed," and "set" shall be interpreted broadly, referring to fixed connections, detachable connections, or integral connections; direct connections or indirect connections via an intermediate medium; mechanical connections or electrical connections. Unless otherwise expressly specified and limited, "above" or "below" a second feature may mean that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," or "over" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "under" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Relational terms such as "first," "second," etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms used in the description, such as “center,” “lateral,” “longitudinal,” “length,” “width,” “thickness,” “height,” “front,” “rear,” “left,” “right,” “up,” “down,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “axial,” “radial,” “circumferential,” “clockwise,” and “counterclockwise,” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Figure 1-8As shown, a self-moving tail-end adjustment mechanism for a belt conveyor includes at least one transverse push mechanism 4 disposed below at least one intermediate frame 2 of the self-moving tail. The transverse push mechanism 4 includes a housing 5 extending transversely below the intermediate frame 2. The housing 5 and the intermediate frame 2 are detachably connected. Support portions 6 are respectively provided on both sides of the housing 5 along its length direction, and a linear drive mechanism 7 is respectively provided between each support portion 6 and the housing 5. The extension directions of the two linear drive mechanisms 7 are opposite. The two ends of the self-moving tail of the long-stroke belt conveyor are a head frame 1 and a tail frame 3, respectively. There are multiple intermediate frames 2 between the head frame 1 and the tail frame 3. The transverse push mechanism 4 can be installed on any one of the intermediate frames 2 according to the actual usage in the tunnel. Various detachable connection methods are available, such as bolt connection and snap-fit ​​connection. The length direction of the housing 5 is perpendicular to or slightly angled to the length direction of the self-moving tail. The length direction and width direction of the intermediate frame 2 are consistent with the length direction and width direction of the self-moving tail. The entire transverse pushing mechanism 4 of this invention can be flexibly adjusted according to the position of the intermediate frame 2, meeting the lateral pushing requirements of different positions of the belt conveyor tail. This enables flexible adjustment of the belt conveyor tail in the width direction within the tunnel to adapt to changes in tunnel width and shape, while ensuring stable operation and a longer service life of the equipment.

[0024] Preferably, the intermediate frame 2 has a through slot in the width direction, and the housing 5 and the linear drive mechanism 7 are disposed within the through slot; a mounting plate 20 is disposed within the through slot; the length direction of the mounting plate 20 is along the width direction of the intermediate frame 2, and the mounting plate 20 and the housing 5 are detachably connected and the connection position is adjustable, thereby realizing the adjustable relative position of the housing 5 in the width direction of the intermediate frame 2. The through slot preferably has an open bottom for ease of manufacturing. Alternatively, an existing slot on the intermediate frame 2 can be used as the through slot, with the dimensions of the housing 5 and the linear drive mechanism 7 designed accordingly. The length direction of the mounting plate 20 is consistent with that of the housing 5. Furthermore, in actual operation, the bottom surface outside the through slot of the intermediate frame 2 is the load-bearing surface, which is at the same height as or lower than the bottom surface of the housing 5. The housing 5 and the intermediate frame 2 can be arranged symmetrically or asymmetrically. The specific relative position is determined according to the actual needs of the site. This invention achieves precise control of the distance between the machine and the tunnel through an adjustable horizontal pushing mechanism 4, solving the problem of transportation position deviation, improving the equipment's adaptability to the tunnel environment, and ensuring transportation stability and safety.

[0025] Furthermore, the mounting plate 20 has two mounting holes 8 along its length, with a hole spacing of a; the housing 5 has a row of mounting holes 8 along its length, with hole spacings including b and c. The sum of the hole spacings of any four adjacent mounting holes 8 is 2b + c; where 2b + c = a. In this case, the two outermost mounting holes 8 of the four adjacent mounting holes 8 on the housing 5 can mate with the two mounting holes 8 on the mounting plate 20, achieving a detachable connection between the mounting plate 20 and the housing 5 through pins, bolts, etc. Specifically, the hole spacings of adjacent mounting holes 8 on the housing 5 follow the pattern c, b, b, c, b, b… That is, the two nearest hole spacings to the left of each hole spacing c are b, b; the two nearest hole spacings to the right are also b, b; and the two nearest hole spacings on both sides of each hole spacing b are b, c. The outermost hole spacing can be b or c. This arrangement ensures that the transverse push mechanism 4 can be installed symmetrically or asymmetrically on the intermediate frame 2, and multiple relative positions can be adjusted.

[0026] Specifically, a horizontal plate 50 is provided on one side of the box body 5 in the width direction, and a vertical plate 51 is provided on the horizontal plate 50. The vertical plate 51, the horizontal plate 50, and the corresponding side of the box body 5 form a narrow and elongated groove 52. A row of mounting holes 8 is provided on the vertical plate 51. The mounting plate 20 of the intermediate frame 2 is disposed in the narrow and elongated groove 52, and the box body 5 is connected to the mounting plate 20 through the mounting holes 8 on the vertical plate 51. There may be a certain gap between the bottom surface of the mounting plate 20 of the intermediate frame 2 and the bottom surface of the narrow and elongated groove 52.

[0027] Furthermore, the housing 5 is hollow, and side-shifting rods 9 are slidably installed inside each of the two ends of the housing 5 along its length; the other end of each side-shifting rod 9 is connected to the corresponding support part 6. The side-shifting rods 9 and the housing 5 constitute a guiding mechanism. Specifically, the cross-section of the housing 5 can be square, and a square box is set inside the hollow housing 5; the side-shifting rods 9 are set inside the square box with a certain gap between them to ensure a smooth and non-deviation-free lateral pushing process. Preferably, the hydraulic cylinder is set on the other side of the width direction of the housing 5, that is, on the side away from the horizontal plate 50; of course, it can also be set above or below the housing 5.

[0028] Furthermore, the linear drive mechanism 7 is a hydraulic cylinder with a stroke ≥1000mm; two mounting seats 53 are fixedly installed on the housing 5, one end of the hydraulic cylinder is hinged to the mounting seat 53, and the other end of the hydraulic cylinder is hinged to the support part 6; the side-shifting rod 9 is also hinged to the support part 6; the contact surface between the support part 6 and the coal wall is a boat-shaped structure. The support part 6 can adaptively rotate with the undulation of the roadway floor, and its arc-shaped end face reduces friction with the roadway wall, adapting to changes in roadway shape.

[0029] Preferably, the two non-adjacent intermediate frames 2 of the self-moving tail section are each connected to their respective lateral push mechanisms 4. Alternatively, multiple intermediate frames 2 may each be equipped with a lateral push mechanism 4, or only one intermediate frame 2 may be equipped with a lateral push mechanism 4. The specific configuration depends on the on-site working conditions.

[0030] This utility model has the following advantages: Large adjustment stroke: The large-stroke hydraulic cylinder, combined with the intermediate frame 2 for position adjustment, can achieve a maximum lateral adjustment stroke of 2800mm on one side, better controlling the distance between the self-moving tail of the belt conveyor and the roadway, solving the problem of transport deviation. Large adjustment force and high adjustment efficiency: The large hydraulic cylinder of the transverse push mechanism 4 provides a large thrust and high adjustment efficiency, reducing maintenance time by more than 50% and minimizing downtime losses. Strong environmental adaptability: The ship-shaped support 6 and the large adjusting hydraulic cylinder can adapt to various roadway floors and sidewalls, completing the adjustment work without frequent manual intervention.

[0031] In practice: The lateral push mechanism 4 can move perpendicular to the belt conveyor direction, and its extension length can be adjusted to change the distance between the tail of the conveyor and the edge of the aisle. When the aisle width changes and it is necessary to adjust the distance between the tail of the belt conveyor and the edge of the aisle, the side shift rod 9 is activated. Under the action of the extension of the hydraulic cylinder, the side shift rod 9 generates a lateral thrust, causing the support part 6 of the boat-shaped structure to move to one side and push against the wall of the aisle edge. At this time, the hydraulic cylinder continues to extend, and through the opposite force on the aisle wall, the side shift rod 9 drives the intermediate frame 2 to move in the opposite direction of the hydraulic cylinder's push. During the entire adjustment process, the position of the intermediate frame 2 is adjusted synchronously with the adjustment of the side shift rod 9, ensuring that the tail of the belt conveyor is always in the optimal conveying position, improving the conveying efficiency and safety of the belt conveyor. When the side push function is not needed or equipment maintenance is required, the side shift rod 9 can be disassembled without affecting the normal operation of other components, improving the flexibility and maintainability of the equipment.

[0032] The technical features of the embodiments described above can be combined in any way, and as long as there is no contradiction in the combination of these technical features, they should all be considered within the scope of this specification. Without departing from the overall concept of this utility model, any equivalent substitutions or modifications made to the technical solution of this utility model, as well as any changes and improvements, should also be considered within the protection scope of this utility model.

Claims

1. A self-moving tail-side adjustment mechanism for a belt conveyor, characterized in that: It includes at least one lateral push mechanism disposed below at least one intermediate frame at the tail of the self-propelled machine; the lateral push mechanism includes a housing that passes laterally through the lower part of the intermediate frame, the housing and the intermediate frame are detachably connected, and support parts are respectively provided on both sides of the housing in the length direction, and a linear drive mechanism is respectively provided between the support part on each side and the housing; the extension directions of the two linear drive mechanisms are opposite.

2. The self-moving tail-side adjustment mechanism for a belt conveyor according to claim 1, characterized in that: The intermediate frame has a through slot in the width direction, and the housing and the linear drive mechanism are disposed in the through slot; a mounting plate is disposed in the through slot; the length direction of the mounting plate is along the width direction of the intermediate frame, and the mounting plate and the housing are detachably connected and the connection position is adjustable, thereby realizing the adjustable relative position of the housing in the width direction of the intermediate frame.

3. The self-moving tail-side adjustment mechanism for a belt conveyor according to claim 2, characterized in that: The mounting plate has two mounting holes along its length with a hole spacing of a; the housing has a row of mounting holes along its length with hole spacings of b and c, and the sum of the hole spacings of any four adjacent mounting holes is 2b+c; where 2b+c=a.

4. The self-moving tail-side adjustment mechanism for a belt conveyor according to claim 3, characterized in that: A horizontal plate with the same length direction as the box body is provided on one side of the width direction, and a vertical plate is provided on the horizontal plate; the vertical plate, the horizontal plate and the corresponding side of the box body form a narrow and long groove; a row of mounting holes is provided on the vertical plate; the mounting plate of the intermediate frame is provided in the narrow and long groove, and the box body is connected to the mounting holes on the mounting plate through the mounting holes on the vertical plate.

5. The self-moving tail-side adjustment mechanism for a belt conveyor according to claim 2, characterized in that: The box is hollow, and each of the two ends of the box along its length is slidably provided with a side-shifting rod; the other end of each side-shifting rod is connected to the support part on the corresponding side.

6. The self-moving tail-side adjustment mechanism for a belt conveyor according to claim 5, characterized in that: The linear drive mechanism is a hydraulic cylinder with a stroke ≥1000mm; two mounting seats are fixedly installed on the housing, one end of the hydraulic cylinder is hinged to the mounting seat, and the other end of the hydraulic cylinder is hinged to the support part; the side shift rod is also hinged to the support part; the contact surface between the support part and the coal wall is a boat-shaped structure.

7. The self-moving tail-side adjustment mechanism for a belt conveyor according to claim 2, characterized in that: The two non-adjacent intermediate frames of the self-moving tail section are respectively connected to their respective lateral push mechanisms.

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