Mechanical extension device and method for a belt support of a round steel conveyor in a coal mine tunnel

Abstract

The application provides a coal mine roadway round steel type conveyor belt frame mechanical extension device and method, and belongs to the technical field of underground roadway tunneling working face transportation. The coal mine roadway round steel type conveyor belt frame mechanical extension device is used in a mine with a telescopic belt conveyor using a round steel type longitudinal beam, and assists in installing an H frame, a longitudinal beam and a roller frame, etc. The belt conveyor belt frame installation under the running state of the belt conveyor can be realized, the operation link of extending the belt during the tunneling operation is completely avoided, the intermittent transportation is changed into continuous transportation, the operation process and flow of the traditional rear supporting transportation system are changed, the innovation of the coal mine roadway tunneling process is realized, and the tunneling operation efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of transportation in underground roadway excavation faces of coal mines, and specifically discloses a mechanical extension device and method for a round steel conveyor belt frame in coal mine roadways. Background Technology

[0002] The low level of mechanization in material transportation equipment at coal mine roadway excavation faces severely restricts the orderly connection of coal mining operations, making it imperative to improve roadway excavation efficiency. Currently, it has been found that the material transportation equipment cannot meet the demands of high-efficiency excavation. The overlap stroke provided by belt conveyors connecting to rigid frames / self-propelled tail sections in coal mines is often insufficient to meet the excavation progress of a single shift. Furthermore, the operation still suffers from numerous belt conveyor installations, cumbersome processes, and high personnel safety risks. Moreover, the installation of belt conveyors requires all equipment in the excavation system to be shut down and performed manually, significantly hindering the efficiency of the excavation progress. Summary of the Invention

[0003] This invention provides a mechanical extension device and method for a round steel conveyor belt frame in coal mine roadways, which meets the needs of mines using conveyor belt frames with round steel longitudinal beams. It completely avoids the operation of extending the conveyor belt frame when the conveyor stops during tunneling operations, greatly reducing the intensity of manual labor and improving the efficiency of tunneling operations.

[0004] The aforementioned mechanical extension device for a round steel conveyor belt frame in a coal mine roadway includes a base, a front frame, a middle frame, a rear frame, belt frame longitudinal beams and upper idler roller transport components, and belt frame H-frames and lower idler roller transport components. The front frame, middle frame, and rear frame are fixedly installed on the base from front to back. Idler rollers are rotatably installed on the front frame, middle frame, and rear frame. The belt frame longitudinal beams and upper idler roller transport components include a fixed platform, a transverse sliding table, a longitudinal beam support frame, a transverse telescopic mechanism I, a longitudinal pushing mechanism, and a longitudinal pushing plate. The fixed platform is installed on the middle frame and located below the idler rollers on the frame. The transverse sliding table is transversely slidably connected to the fixed platform. Two sets of longitudinal beam support frames are installed on the transverse sliding table and are used to support two belt frame longitudinal beams respectively. The transverse telescopic mechanism I is used to drive the transverse sliding table to move laterally. The longitudinal pushing mechanism is used to drive the longitudinal pushing plate to move longitudinally; the longitudinal pushing plate is used to push the assembled belt frame longitudinal beam and upper idler roller on the longitudinal beam support frame backward; the belt frame H-frame and lower idler roller transport assembly is located between the intermediate frame and the rear frame, including a longitudinal sliding seat, a transverse sliding seat, an H-frame support seat, a longitudinal telescopic mechanism, a transverse telescopic mechanism II, and a vertical swing mechanism; the longitudinal sliding seat is longitudinally slidably connected to the base; the longitudinal telescopic mechanism is used to drive the longitudinal sliding seat to slide longitudinally; the transverse sliding seat is transversely slidably connected to the longitudinal sliding seat; the transverse telescopic mechanism II is used to drive the transverse sliding seat to slide laterally; the H-frame support seat is provided with two slots for inserting into the two vertical beams of the H-frame, and the H-frame support seat and the transverse sliding seat are rotatably connected through a rotating part; the vertical swing mechanism is used to drive the H-frame support seat to swing vertically around the rotating part.

[0005] Furthermore, the longitudinal beam support frame includes a support base, a support bend plate, a rotating wheel, and a wheel axle; the bottom end of the support base is fixedly installed on the transverse sliding table, and the top end is fixed to the support bend plate; the support bend plate is an arc-shaped bend plate that fits against the longitudinal beam of the belt frame; the wheel axle passes through the support base; the rotating wheel is rotatably installed on both sides of the support bend plate through the wheel axle, and the rotating wheel is a multi-pointed star rotating wheel with multiple sharp corners evenly spaced. When the sharp corner rotates to the point where its end faces upward and is perpendicular to the support bend plate, its end is higher than the support bend plate. When the sharp corner higher than the support bend plate contacts the longitudinal pushing plate, it can be pushed downward and rotated so that the longitudinal pushing plate passes over the sharp corner.

[0006] Furthermore, the longitudinal beam support frame also includes a limiting sleeve; the limiting sleeve is fitted onto the axle and is located between the wheel and the support seat.

[0007] Furthermore, the belt conveyor longitudinal beam and upper idler roller transport assembly also includes a telescopic lifting frame; two sets of telescopic lifting frames are installed on a fixed platform, located behind the two sets of longitudinal beam support frames respectively; the telescopic lifting frame includes a lifting seat, a longitudinal beam bracket, a bracket sliding seat, and a vertical telescopic mechanism; the bottom end of the lifting seat is fixedly installed on the fixed platform, and the top end is fixed to the longitudinal beam bracket; the longitudinal beam bracket is provided with a groove for accommodating the belt conveyor longitudinal beam; the bracket sliding seat is fixed on the lifting seat and vertically slidably connected to the longitudinal beam bracket; the vertical telescopic mechanism is used to drive the longitudinal beam bracket to slide up and down along the bracket sliding seat.

[0008] Furthermore, the lateral telescopic mechanism I is a lateral telescopic cylinder I, with both ends connected to the fixed platform and the transverse sliding table via pins; the longitudinal push plate is slidably mounted on the guide rod, which longitudinally spans the transverse sliding table, and both ends are fixed to the intermediate frame; the longitudinal push mechanism is a longitudinal telescopic cylinder I, parallel to the guide rod, with both ends connected to the longitudinal push plate and the intermediate frame; the longitudinal telescopic mechanism is a longitudinal telescopic cylinder II, with both ends connected to the base and the longitudinal sliding seat via pins; the lateral telescopic mechanism II is a lateral telescopic cylinder II, with both ends connected to the longitudinal sliding seat and the lateral sliding seat via pins; the H-frame support is rotatably connected to the lateral sliding seat via pins; the vertical swing mechanism is a vertical telescopic cylinder I, with both ends connected to the H-frame support and the lateral sliding seat via pins; the vertical telescopic mechanism is a vertical telescopic cylinder II, with both ends connected to the longitudinal beam bracket and the lifting seat via pins.

[0009] Furthermore, the height of the front-end rack gradually increases from front to back; the middle rack is at the same height as the rear end of the front-end rack; the height of the rear rack gradually decreases from front to back, and the front-end rack is at the same height as the middle rack.

[0010] Furthermore, the upper idler rollers on the frame are trough-shaped idler rollers, and upper belt anti-deviation pressure rollers are provided on both sides of the trough-shaped idler rollers; the lower idler rollers of the frame are installed on the front frame.

[0011] Furthermore, the base includes a front-end base, an intermediate base, and a rear-end base that correspond one-to-one with the front-end rack, the intermediate rack, and the rear-end rack, and the front-end base, the intermediate base, and the rear-end base are connected by pins.

[0012] Furthermore, a longitudinal telescopic hydraulic cylinder III for connection with the front device is installed at the front end of the front base.

[0013] The above-mentioned method for mechanically extending the belt frame of a round steel conveyor in a coal mine roadway includes the following steps:

[0014] S1, connect the front frame of the mechanical extension device of the circular steel conveyor belt frame of the coal mine roadway to the self-moving tail, and move forward by the traction of the self-moving tail, so that the upper belt of the belt conveyor is arranged on the idler rollers of the front frame, the middle frame and the rear frame, and the lower belt is arranged below the fixed platform.

[0015] S2, the lateral telescopic mechanism II pushes the lateral sliding seat out laterally, and the vertical swing mechanism II drives the H-frame support seat to swing downward to an inclined position, inserting the two vertical beams of the H-frame into the slots of the H-frame support seat. The lateral telescopic mechanism II resets the lateral sliding seat laterally, and the vertical swing mechanism II drives the H-frame support seat to swing upward to straighten. The lower roller of the belt frame on the H-frame is located below the lower belt.

[0016] S3, the transverse telescopic mechanism I pushes the transverse slide table out laterally, and places the belt frame longitudinal beam and the belt frame idler on the longitudinal beam support frame;

[0017] If the belt frame longitudinal beam and the belt frame idler roller are not assembled, they are assembled on the transverse slide. After assembly, the belt frame longitudinal beam is placed on the longitudinal beam support frame, and the transverse telescopic mechanism I retracts, so that the two belt frame longitudinal beams are respectively aligned with the two longitudinal beam slots of the H frame.

[0018] If the belt frame longitudinal beam and the belt frame idler roller are in the assembled state, then place the belt frame longitudinal beam directly on the longitudinal beam support frame, and the transverse telescopic mechanism I retracts, so that the two belt frame longitudinal beams are respectively aligned with the two longitudinal beam slots of the H frame.

[0019] S4, the longitudinal pushing mechanism pushes the longitudinal pushing plate backward, and pushes the belt frame longitudinal beam and the upper idler roller assembly on the longitudinal beam support frame backward to the rear end of the two belt frame longitudinal beams and inserts them into the two longitudinal beam slots of the H frame for fixing;

[0020] S5, the mechanical extension device of the belt frame of the round steel conveyor in the coal mine roadway moves forward together with the front machine. The part of the belt frame that has been assembled is pulled by the head of the belt conveyor and does not move forward with the mechanical extension device of the belt frame of the round steel conveyor in the coal mine roadway until the front end of the longitudinal beam of the belt frame that has been assembled at the rear end moves to the H frame support seat.

[0021] S6, the lateral telescopic mechanism II pushes the lateral sliding seat out laterally, the vertical swing mechanism II causes the H-frame support to swing downward to an inclined position, inserts the two vertical beams of the H-frame into the slots of the H-frame support, the lateral telescopic mechanism II resets the lateral sliding seat laterally, the vertical swing mechanism II drives the H-frame support to swing upward, the lower roller of the belt frame on the H-frame is located below the lower belt, the longitudinal telescopic mechanism II retracts, driving the H-frame to move backward, so that the two longitudinal beam slots are fitted onto the front ends of the two belt frame longitudinal beams for fixation;

[0022] S7. Repeat steps S3-S6. The assembled part is gradually detached from the base by the head of the belt conveyor, so that the upper belt on the idler roller on the frame falls onto the idler roller on the belt frame.

[0023] The present invention has the following beneficial effects:

[0024] The mechanical extension device for the belt frame of a round steel conveyor in coal mine roadways is used in mines with retractable belt conveyors using round steel longitudinal beams. It assists in the installation of H-frames, longitudinal beams, and idler frames, enabling the installation of the belt frame while the belt conveyor is running. This completely avoids the need to extend the belt when the conveyor stops during tunneling operations, transforming intermittent transportation into continuous transportation. It changes the operation process and workflow of traditional downstream transportation systems, realizes innovation in coal mine roadway tunneling technology, and improves tunneling efficiency. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A diagram showing the working status of the mechanical extension device of the belt conveyor frame for a round steel conveyor in a coal mine roadway.

[0027] Figure 2 This is a schematic diagram of the structure of a round steel conveyor belt frame;

[0028] Figure 3 A schematic diagram of the mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway;

[0029] Figure 4 This is a schematic diagram showing the installation of the belt conveyor longitudinal beam and upper idler roller transport assembly on the intermediate frame.

[0030] Figure 5 This is a structural schematic diagram of the longitudinal beam support frame;

[0031] Figure 6 for Figure 5 Side view;

[0032] Figure 7 This is a structural diagram of the telescopic lifting frame;

[0033] Figure 8 A front view of the conveyor belt frame longitudinal beam and upper idler roller assembly being pushed backward;

[0034] Figure 9 for Figure 8 The left view;

[0035] Figure 10 This is a schematic diagram of the structure of the belt conveyor H-frame and the lower idler roller transport assembly.

[0036] In the diagram: 1-Base; 2-Front-end frame; 3-Intermediate frame; 4-Rear-end frame; 5-Belt conveyor longitudinal beam and upper idler roller transport assembly; 5.1-Fixed platform; 5.2-Transverse slide; 5.3-Longitudinal beam support frame; 5.3.1-Support seat; 5.3.2-Support bend plate; 5.3.3-Roller; 5.3.4-Wheel axle; 5.3.5-Limit sleeve; 5.4-Longitudinal push plate; 5.5-Telescopic lifting frame; 5.5.1-Lifting seat; 5.5.2-Longitudinal beam bracket; 5 5.3-Sliding bracket seat; 5.5.4-Vertical telescopic cylinder II; 5.6-Transverse telescopic cylinder I; 5.7-Guide rod; 5.8-Longitudinal telescopic cylinder I; 6-Belt frame H-frame and lower idler roller transport assembly; 6.1-Longitudinal sliding seat; 6.2-Transverse sliding seat; 6.3-H-frame support seat; 6.4-Longitudinal telescopic cylinder II; 6.5-Transverse telescopic cylinder II; 6.6-Vertical telescopic cylinder I; 7-Longitudinal telescopic cylinder III; 8-Upper idler roller on the frame; 9-Lower idler roller on the frame;

[0037] 100-Round steel conveyor belt frame; 100.1-Belt frame longitudinal beam; 100.2-H frame; 100.3-Belt frame upper idler; 100.4-Belt frame lower idler; 100.5-Idler connecting seat; 100.6-Connector; 200-Tunnel. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] This embodiment provides a mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway, including a base 1, a front frame 2, a middle frame 3, a rear frame 4, a belt frame longitudinal beam and an upper idler roller transport assembly 5, and a belt frame H-frame and a lower idler roller transport assembly 6.

[0041] The base 1 includes a front base, a middle base, and a rear base that correspond one-to-one with the front frame 2, the middle frame 3, and the rear frame 4. The front base, the middle base, and the rear base are connected by pins. A longitudinal telescopic hydraulic cylinder Ⅲ7 for connecting to the front device is installed at the front end of the front base.

[0042] The front frame 2, the middle frame 3, and the rear frame 4 are fixedly installed on the base 1 from front to back. The height of the front frame 2 gradually increases from front to back. The middle frame 3 is at the same height as the rear end of the front frame 2. The height of the rear frame 4 gradually decreases from front to back. The front end is at the same height as the middle frame 2, and the front and rear frames are transition frames. The front frame 2, the middle frame 3, and the rear frame 4 are rotatably mounted with upper frame rollers 8. The upper frame rollers 8 are trough rollers, and upper belt anti-deviation pressure rollers are set on both sides of the trough rollers. The front frame 2 is mounted with lower frame rollers 9.

[0043] The conveyor belt frame longitudinal beam and upper idler roller transport assembly 5 includes a fixed platform 5.1, a transverse slide 5.2, a longitudinal beam support frame 5.3, a transverse telescopic mechanism I, a longitudinal pushing mechanism, and a longitudinal pushing plate 5.4. The fixed platform 5.1 is installed on the intermediate frame 3 and is located below the upper idler roller 8 on the frame. The transverse slide 5.2 is transversely slidably connected to the fixed platform 5.1. Two sets of longitudinal beam support frames 5.3 are installed on the transverse slide 5.2 and are used to support two conveyor belt longitudinal beams 100.1 respectively. The transverse telescopic mechanism I is used to drive the transverse slide 5.2 to move laterally. The longitudinal pushing mechanism is used to drive the longitudinal pushing plate 5.4 to move longitudinally. The longitudinal pushing plate 5.4 is used to push the assembled conveyor belt longitudinal beam and upper idler roller on the longitudinal beam support frame 5.3 backward.

[0044] The belt conveyor H-frame and lower idler roller transport assembly 6 is located between the intermediate frame 3 and the rear frame 4, and includes a longitudinal sliding seat 6.1, a transverse sliding seat 6.2, an H-frame support seat 6.3, a longitudinal telescopic mechanism, a transverse telescopic mechanism II, and a vertical swing mechanism. The longitudinal sliding seat 6.1 is longitudinally slidably connected to the base 1. The longitudinal telescopic mechanism is used to drive the longitudinal sliding seat 6.1 to slide longitudinally. The transverse sliding seat 6.2 is transversely slidably connected to the longitudinal sliding seat 6.1. The transverse telescopic mechanism II is used to drive the transverse sliding seat 6.2 to slide laterally. The H-frame support seat 6.3 is provided with two slots for inserting into the two vertical beams of the H-frame 100.2. The H-frame support seat 6.3 and the transverse sliding seat 6.2 are rotatably connected by a rotating component. The vertical swing mechanism is used to drive the H-frame support seat 6.3 to swing vertically around the rotating component.

[0045] Furthermore, the longitudinal beam support frame 5.3 includes a support base 5.3.1, a support bend plate 5.3.2, a rotating wheel 5.3.3, and a wheel axle 5.3.4; the bottom end of the support base 5.3.1 is fixedly mounted on the transverse slide table 5.2, and the top end is fixed to the support bend plate 5.3.2; the support bend plate 5.3.2 is an arc-shaped bend plate that fits against the longitudinal beam 100.1 of the belt frame; the wheel axle 5.3.4 passes through the support base 5.3.1; the rotating wheel 5.3.3 is rotatably mounted on the support bend plate 5.3.4 via the wheel axle 5.3.4. On both sides of 3.2, the rotating wheel 5.3.3 is a multi-pointed star rotating wheel (a four-pointed star rotating wheel in this embodiment), with multiple sharp corners evenly spaced. When the sharp corner rotates to the point where the end faces upward and is perpendicular to the support bend plate 5.3.2, the end is higher than the support bend plate 5.3.2 to prevent the belt frame longitudinal beam 100.1 placed on the support bend plate 5.3.2 from falling off. When the sharp corner higher than the support bend plate 5.3.2 comes into contact with the longitudinal push plate 5.4, it can be pushed downward and rotated so that the longitudinal push plate 5.4 passes over the sharp corner to avoid interference.

[0046] Furthermore, the longitudinal beam support frame 5.3 also includes a limiting sleeve 5.3.5; the limiting sleeve 5.3.5 is fitted onto the axle 5.3.4 and located between the wheel 5.3.3 and the support base 5.3.1, limiting the left and right movement of the axle 5.3.4 and the wheel 5.3.3. The end of the axle 5.3.4 has an external thread for installing a nut.

[0047] Furthermore, the belt conveyor longitudinal beam and upper idler roller transport assembly 5 also includes a telescopic lifting frame 5.5; two sets of telescopic lifting frames 5.5 are installed on the fixed platform 5.1, respectively located behind the two sets of longitudinal beam support frames 5.3; the telescopic lifting frame 5.5 includes a lifting seat 5.5.1, a longitudinal beam bracket 5.5.2, a bracket sliding seat 5.5.3, and a vertical telescopic mechanism; the bottom end of the lifting seat 5.5.1 is fixedly installed on the fixed platform 5.1, and the top end is fixed to the longitudinal beam bracket 5.5.2; the longitudinal beam bracket 5.5.2 is provided with a groove for accommodating the belt conveyor longitudinal beam 100.1; the bracket sliding seat 5.5.3 is fixed on the lifting seat 5.5.1 and vertically slidably connected to the longitudinal beam bracket 5.5.2; the vertical telescopic mechanism is used to drive the longitudinal beam bracket 5.5.2 to slide up and down along the bracket sliding seat 5.5.3.

[0048] Furthermore, the lateral telescopic mechanism I is a lateral telescopic cylinder I 5.6, with both ends connected to the fixed platform 5.1 and the transverse sliding table 5.2 via pins; the longitudinal push plate 5.4 is slidably mounted on the guide rod 5.7, which longitudinally spans the transverse sliding table 5.2, with both ends fixed to the intermediate frame 3; the longitudinal push mechanism is a longitudinal telescopic cylinder I 5.8, parallel to the guide rod 5.7, with both ends connected to the longitudinal push plate 5.4 and the intermediate frame 3; the longitudinal telescopic mechanism is a longitudinal telescopic cylinder II 6.4, with both ends connected to the base 1 and the longitudinal sliding table 5.2. The sliding seat 6.1 is connected by a pin; the transverse telescopic mechanism II is a transverse telescopic cylinder II 6.5, with both ends connected to the longitudinal sliding seat 6.1 and the transverse sliding seat 6.2 by pins respectively; the H-frame support seat 6.3 is rotatably connected to the transverse sliding seat 6.2 by a pin; the vertical swing mechanism is a vertical telescopic cylinder I 6.6, with both ends connected to the H-frame support seat 6.3 and the transverse sliding seat 6.2 by pins respectively; the vertical telescopic mechanism is a vertical telescopic cylinder II 5.5.4, with both ends connected to the longitudinal beam bracket 5.5.2 and the lifting seat 5.5.1 by pins respectively.

[0049] The aforementioned mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway is applicable to the belt frame 100 of a round steel conveyor, including a belt frame longitudinal beam 100.1, an H-frame 100.2, an upper belt frame idler 100.3, and a lower belt frame idler 100.4; both belt frame longitudinal beams 100.1 are round steel and are connected as a whole by the upper belt frame idler 100.3; the H-frame 100.2 includes two vertical beams and a crossbeam connecting the two vertical beams, and the top of the vertical beam is provided with a longitudinal beam slot, and the lower belt frame idler 100.4 is installed on the crossbeam.

[0050] The idler roller 100.3 on the belt conveyor supports the operation of the upper belt. It is a trough-shaped idler roller. In this embodiment, the two ends of the trough-shaped idler roller are provided with idler roller connecting seats 100.5. The idler roller connecting seat 100.5 is an arc-shaped bent plate that fits against the longitudinal beam 100.1 of the belt conveyor. The idler roller connecting seat 100.5 is hooked onto the longitudinal beam 100.1 of the belt conveyor and fixed with bolts or other connecting parts 100.6. Other methods can also be used to connect the idler roller 100.3 to the longitudinal beam 100.1 of the belt conveyor. During the process of the longitudinal beam 100.1 of the belt conveyor being pushed backward by the longitudinal pushing plate 5.4, due to the presence of the idler roller connecting seat 100.5 and connecting parts 100.6, designing the supporting bent plate 5.3.2 as an arc shape can avoid interference with the idler roller connecting seat 100.5 and connecting parts 100.6.

[0051] The belt support roller 100.4 supports the belt movement and is a flat roller.

[0052] The longitudinal beams of the belt frame of two adjacent sets of belt frames and the belt frame of the upper idler assembly are connected by inserting them into the slots of the longitudinal beams of the same set of belt frame H-frame and lower idler assembly.

[0053] The mechanical extension device of the round steel conveyor belt frame in the coal mine roadway is arranged on one side of roadway 200. It moves forward together with the tunneling equipment in front via the longitudinal telescopic cylinder III7 and can be adjusted in position. During the installation of the round steel conveyor belt frame 100, the entire tunneling system is in operation. After the round steel conveyor belt frame 100 is installed, it is also located on one side of roadway 200 and is connected to the main coal mine conveyor belt at the initial position of the tunneling roadway to realize the transportation of materials in the tunneling roadway and form a continuous transportation system for the tunneling roadway.

[0054] Example 2

[0055] This embodiment provides a method for mechanically extending the belt frame of a round steel conveyor in a coal mine roadway.

[0056] Includes the following steps:

[0057] S1, connect the front frame 2 of the above-mentioned coal mine roadway round steel conveyor belt frame mechanical extension device to the self-moving tail, and move forward by the self-moving tail to arrange the upper belt of the belt conveyor on the frame rollers 8 of the front frame 2, the middle frame 3, and the rear frame 4, and arrange the lower belt on the frame rollers 9, passing under the fixed platform 5.1.

[0058] S2, the lateral telescopic mechanism II pushes the lateral sliding seat 6.2 out laterally, and the vertical swing mechanism II drives the H-frame support seat 6.3 to swing downward to an inclined position, inserting the two vertical beams of the H-frame 100.2 into the slots of the H-frame support seat 6.3. The lateral telescopic mechanism II returns the lateral sliding seat 6.2 to its lateral position, and the vertical swing mechanism II drives the H-frame support seat 6.3 to be upright. The belt frame lower roller 100.4 on the H-frame 100.2 is located below the lower belt.

[0059] S3, the transverse telescopic mechanism I pushes the transverse slide table 5.2 out laterally, and places the belt frame longitudinal beam and the belt frame upper roller on the longitudinal beam support frame 5.3, so that the belt frame longitudinal beam 100.1 is tangentially attached to the support bending plate 5.3.2;

[0060] If the belt frame longitudinal beam 100.1 and the belt frame upper roller 100.3 are not assembled, they are assembled on the transverse slide table 5.2. After assembly, the belt frame longitudinal beam 100.1 is placed on the longitudinal beam support frame 5.3, and the transverse telescopic mechanism I retracts. At this time, the telescopic lifting frame 5.5 is in a retracted state to avoid touching the belt conveyor longitudinal beam 100.1 during the retraction of the transverse slide table 5.2, until the two belt frame longitudinal beams 100.1 are aligned with the two longitudinal beam slots of the H frame 100.2 respectively.

[0061] If the belt frame longitudinal beam 100.1 and the belt frame upper roller 100.3 are in the assembled state, the belt frame longitudinal beam 100.1 is directly placed on the longitudinal beam support frame 5.3, and the transverse telescopic mechanism I retracts. At this time, the telescopic lifting frame 5.5 is in the retracted state to avoid touching the belt conveyor longitudinal beam 100.1 during the retraction of the transverse slide 5.2, until the two belt frame longitudinal beams 100.1 are respectively aligned with the two longitudinal beam slots of the H frame 100.2;

[0062] S4, the longitudinal pushing mechanism pushes the longitudinal pushing plate 5.4 backward, pushing the belt conveyor longitudinal beams and upper idler assembly on the longitudinal beam support frame 5.3 backward until they are inserted into the two longitudinal beam slots of the H frame 100.2 at the rear ends of the two belt conveyor longitudinal beams 100.1 for fixation. During the backward movement of the longitudinal pushing plate 5.4, the telescopic lifting frame 5.5 is positioned by the stroke sensor installed inside the longitudinal pushing mechanism. When the longitudinal pushing mechanism starts working, the longitudinal beam support 5.5.2 extends upward through the vertical telescopic mechanism, lifting the belt conveyor longitudinal beams 100.1 into the grooves of the longitudinal beam support 5.5.2 to prevent the belt from slipping. During movement, the longitudinal beam 100.1 falls off. When the idler connecting seat 100.5 and the connecting piece 100.6 are about to pass the longitudinal beam bracket 5.5.2, the longitudinal beam bracket 5.5.2 retracts downward to prevent the longitudinal beam bracket 5.5.2 from colliding with the idler connecting seat 100.5 and the connecting piece 100.6. When the idler connecting seat 100.5 and the connecting piece 100.6 pass the longitudinal beam bracket 5.5.2, the longitudinal beam bracket 5.5.2 extends again to lift the conveyor longitudinal beam 100.1 into the groove of the longitudinal beam bracket 5.5.2. This cycle continues until the conveyor longitudinal beam 100.1 has completely passed the fixed platform 5.1.

[0063] S5, the mechanical extension device of the belt frame of the round steel conveyor in the coal mine roadway moves forward together with the front machine. The part of the belt frame that has been assembled is pulled by the head of the belt conveyor and does not move forward with the mechanical extension device of the belt frame of the round steel conveyor in the coal mine roadway until the front end of the belt frame longitudinal beam 100.1 that has been assembled at the rear end moves to the H frame support seat 6.3.

[0064] S6, the lateral telescopic mechanism II pushes the lateral sliding seat 6.2 out laterally, and the vertical swing mechanism II causes the H-frame support seat 6.3 to swing downward to an inclined position, inserting the two vertical beams of the H-frame 100.2 into the slots of the H-frame support seat 6.3. The lateral telescopic mechanism II returns the lateral sliding seat 6.2 to its lateral position, and the vertical swing mechanism II drives the H-frame support seat 6.3 to be upright. The belt frame lower roller 100.4 on the H-frame 100.2 is located below the lower belt. The longitudinal telescopic mechanism II retracts, causing the H-frame 100.2 to move backward, so that the two longitudinal beam slots are fitted onto the front ends of the two belt frame longitudinal beams 100.1 for fixation.

[0065] S7. Repeat steps S3-S6. The assembled part is gradually detached from the base by the head of the belt conveyor, so that the upper belt on the idler roller 8 on the frame falls onto the idler roller 100.3 on the belt frame.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mechanical extension device for a round steel conveyor belt frame in a coal mine roadway, characterized in that, Suitable for round steel conveyor belt frames; The round steel conveyor belt frame includes the belt frame longitudinal beam, H-frame, upper belt frame idler roller, and lower belt frame idler roller; Both longitudinal beams of the belt conveyor are made of round steel and are connected as a whole by rollers on the belt conveyor. The H-frame includes two vertical beams and a crossbeam connecting the two vertical beams. The top of the vertical beams is provided with a longitudinal beam slot, and the belt frame lower roller is installed on the crossbeam. The mechanical extension device for the belt conveyor of round steel type in coal mine roadways includes a base, a front frame, a middle frame, a rear frame, a belt frame longitudinal beam and an upper idler roller transport assembly, a belt frame H-frame and a lower idler roller transport assembly; The front-end frame, middle frame, and rear-end frame are fixedly installed on the base from front to back; The front frame, middle frame and rear frame are rotatably mounted with frame rollers; The belt conveyor longitudinal beam and upper idler roller transport assembly includes a fixed platform, a transverse sliding table, a longitudinal beam support frame, a transverse telescopic mechanism I, a longitudinal pushing mechanism, and a longitudinal pushing plate; The fixed platform is installed on the intermediate frame and is located below the rollers on the frame; The transverse sliding table is laterally slidably connected to the fixed platform; Two sets of longitudinal beam support frames are installed on the transverse sliding platform, respectively used to support the two belt conveyor longitudinal beams; The lateral telescopic mechanism I is used to drive the lateral sliding table to move laterally. The longitudinal pushing mechanism is used to drive the longitudinal pushing plate to translate longitudinally. The longitudinal pushing plate is used to push the assembled belt frame longitudinal beam and upper idler roller on the longitudinal beam support frame backward; The belt conveyor H-frame and lower idler roller transport assembly are located between the intermediate frame and the rear frame, and include a longitudinal sliding seat, a transverse sliding seat, an H-frame support seat, a longitudinal telescopic mechanism, a transverse telescopic mechanism II, and a vertical swing mechanism; The longitudinal sliding seat is longitudinally slidably connected to the base; The longitudinal telescopic mechanism is used to drive the longitudinal sliding seat to slide longitudinally. The transverse sliding seat and the longitudinal sliding seat are slidably connected laterally; The lateral telescopic mechanism II is used to drive the lateral sliding seat to slide laterally. The H-frame support base is provided with two slots for inserting into the two vertical beams of the H-frame. The H-frame support base and the transverse sliding base are rotatably connected by a rotating component. The vertical swing mechanism is used to drive the H-frame support to swing vertically around the rotating component; The longitudinal beam support frame includes a support base, a support bend plate, a wheel, and a wheel axle; The bottom end of the support base is fixedly installed on the transverse sliding table, and the top end is fixed with a support curved plate; The supporting curved plate is an arc-shaped curved plate that fits against the longitudinal beam of the belt frame; The axle passes through the support base; The rotating wheel is mounted on both sides of the supporting curved plate via a wheel axle. The rotating wheel is a multi-pointed star rotating wheel with multiple sharp corners evenly spaced. When the sharp corner rotates to the point where its end faces upward and is perpendicular to the supporting curved plate, the end is higher than the supporting curved plate. When the sharp corner that is higher than the supporting curved plate comes into contact with the longitudinal pushing plate, it can be pushed downward and rotated so that the longitudinal pushing plate passes over the sharp corner.

2. The mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway according to claim 1, characterized in that, The longitudinal beam support frame also includes a limiting sleeve; The limiting sleeve is fitted onto the axle and is located between the wheel and the support seat.

3. The mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway according to claim 2, characterized in that, The belt conveyor longitudinal beam and upper idler roller transport assembly also include a telescopic lifting frame; Two sets of telescopic lifting frames are installed on a fixed platform, located behind the two sets of longitudinal beam support frames respectively; The telescopic lifting frame includes a lifting seat, a longitudinal beam bracket, a bracket sliding seat, and a vertical telescopic mechanism; The bottom end of the support seat is fixedly installed on the fixed platform, and the top end is fixed with a longitudinal beam bracket; The longitudinal beam bracket is provided with a groove for accommodating the belt frame longitudinal beam; The bracket sliding seat is fixed on the support seat and is vertically slidably connected to the longitudinal beam bracket; The vertical telescopic mechanism is used to drive the longitudinal beam bracket to slide up and down along the bracket sliding seat.

4. The mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway according to claim 3, characterized in that, The transverse telescopic mechanism I is a transverse telescopic hydraulic cylinder I, with its two ends connected to the fixed platform and the transverse sliding table respectively via pins; The longitudinal push plate is slidably mounted on the guide rod, which longitudinally spans the transverse slide table, and both ends are fixed to the intermediate frame; The longitudinal pushing mechanism is a longitudinal telescopic hydraulic cylinder I, which is parallel to the guide rod and connected at both ends to the longitudinal pushing plate and the intermediate frame, respectively. The longitudinal telescopic mechanism is a longitudinal telescopic hydraulic cylinder II, with its two ends connected to the base and the longitudinal sliding seat respectively via pins; The lateral telescopic mechanism II is a lateral telescopic hydraulic cylinder II, with both ends connected to the longitudinal sliding seat and the lateral sliding seat respectively via pins; The H-frame support and the transverse sliding seat are rotatably connected by a pin. The vertical swing mechanism is a vertical telescopic hydraulic cylinder I, with its two ends connected to the H-frame support and the transverse sliding seat respectively via pins; The vertical telescopic mechanism is a vertical telescopic hydraulic cylinder II, with both ends connected to the longitudinal beam bracket and the support seat via pins.

5. The mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway according to claim 4, characterized in that, The height of the front rack gradually increases from front to back; The rear ends of the intermediate rack and the front rack are at the same height; The height of the back rack gradually decreases from front to back, while the front rack is the same height as the middle rack.

6. The mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway according to claim 5, characterized in that, The idler rollers on the frame are trough-shaped idler rollers, and the upper belt anti-deviation pressure rollers are set on both sides of the trough-shaped idler rollers; A frame-lower idler roller is installed on the front frame.

7. The mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway according to any one of claims 1-6, characterized in that, The base includes a front base, a middle base, and a rear base that correspond one-to-one with the front rack, the middle rack, and the rear rack. The front base, the middle base, and the rear base are connected by pins.

8. The mechanical extension device for the belt frame of a round steel conveyor in a coal mine roadway according to claim 7, characterized in that, The front end of the front base is equipped with a longitudinal telescopic cylinder III for connection with the front device.

9. A method for mechanically extending the belt frame of a round steel conveyor in a coal mine roadway, characterized in that, Includes the following steps: S1, connect the front frame of the mechanical extension device for the belt frame of the round steel conveyor in the coal mine roadway as described in any one of claims 1-8 to the self-moving tail, and move it forward by the traction of the self-moving tail, so that the upper belt of the belt conveyor is arranged on the frame rollers of the front frame, the middle frame and the rear frame, and the lower belt is arranged below the fixed platform. S2, the lateral telescopic mechanism II pushes the lateral sliding seat out laterally, and the vertical swing mechanism II drives the H-frame support seat to swing downward to an inclined position, inserting the two vertical beams of the H-frame into the slots of the H-frame support seat. The lateral telescopic mechanism II resets the lateral sliding seat laterally, and the vertical swing mechanism II drives the H-frame support seat to swing upward to straighten. The lower roller of the belt frame on the H-frame is located below the lower belt. S3, the transverse telescopic mechanism I pushes the transverse slide table out laterally and places the belt frame longitudinal beam and the belt frame roller on the longitudinal beam support frame; If the belt frame longitudinal beam and the belt frame idler roller are not assembled, they are assembled on the transverse slide. After assembly, the belt frame longitudinal beam is placed on the longitudinal beam support frame, and the transverse telescopic mechanism I retracts, so that the two belt frame longitudinal beams are respectively aligned with the two longitudinal beam slots of the H frame. If the belt frame longitudinal beam and the belt frame idler roller are in the assembled state, then place the belt frame longitudinal beam directly on the longitudinal beam support frame, and the transverse telescopic mechanism I retracts, so that the two belt frame longitudinal beams are respectively aligned with the two longitudinal beam slots of the H frame. S4, the longitudinal pushing mechanism pushes the longitudinal pushing plate backward, and pushes the belt frame longitudinal beam and the upper idler roller assembly on the longitudinal beam support frame backward to the rear end of the two belt frame longitudinal beams and inserts them into the two longitudinal beam slots of the H frame for fixing; S5, the mechanical extension device of the belt frame of the round steel conveyor in the coal mine roadway moves forward together with the front machine. The part of the belt frame that has been assembled is pulled by the head of the belt conveyor and does not move forward with the mechanical extension device of the belt frame of the round steel conveyor in the coal mine roadway until the front end of the longitudinal beam of the belt frame that has been assembled at the rear end moves to the H frame support seat. S6, the lateral telescopic mechanism II pushes the lateral sliding seat out laterally, the vertical swing mechanism II causes the H-frame support to swing downward to an inclined position, inserts the two vertical beams of the H-frame into the slots of the H-frame support, the lateral telescopic mechanism II resets the lateral sliding seat laterally, the vertical swing mechanism II drives the H-frame support to swing upward, the lower roller of the belt frame on the H-frame is located below the lower belt, the longitudinal telescopic mechanism II retracts, driving the H-frame to move backward, so that the two longitudinal beam slots are fitted onto the front ends of the two belt frame longitudinal beams for fixation; S7. Repeat steps S3-S6. The assembled part is gradually detached from the base by the head of the belt conveyor, so that the upper belt on the idler roller on the frame falls onto the idler roller on the belt frame.

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