Belt extending device

Abstract

The invention belongs to the technical field of matched transportation after coal mine underground roadway tunneling, and particularly relates to a belt extending device. Comprising a loading track frame, a telescopic frame, a connecting frame, a belt height adjusting frame and a guide sliding frame, the connecting frame, the belt height adjusting frame and the telescopic frame are each provided with a carrier roller capable of bearing a belt. The loading track frame is assembled on the guide sliding frame, a front guide structure on the loading track frame is aligned with a rear guide structure on the guide sliding frame, the telescopic frame in the folded state is stored on the front guide structure of the loading track frame, and a first frame body of the telescopic frame is stopped on a limiting structure on the loading track frame. The telescopic frames slide out along the rear guide structure of the guide sliding frame after being unfolded in sequence; the device can be used in cooperation with a rigid frame or a self-moving machine tail, mechanical extension of the belt is achieved on the premise that tunneling and rear matched conveying equipment is not stopped or stopped for a short time, the labor intensity of workers is reduced, the increasing tunneling footage requirement is met, and the tunneling efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of supporting transportation after tunneling in underground coal mines, and particularly relates to a belt extending device. Background Art

[0002] At present, the main supporting transportation mode after tunnel excavation is bridge loaders lapped with rigid frames / self-moving tails for coal mines, and the lap stroke is generally 30-35 meters. With the continuous advancement of excavation and support technology, it has become possible to excavate more than 50 meters a day in some mines. The lap stroke provided by bridge loaders lapped with rigid frames / self-moving tails can no longer meet the daily excavation footage requirements of underground mines. In this way, belt extension becomes a prominent problem. When the H-frame extension belt is manually installed, all equipment in the excavation system must be shut down, which seriously restricts the efficiency of tunnel excavation footage. Therefore, extending the belt of excavation and supporting transportation equipment without stopping or stopping for a short time has become an urgent problem to be solved. Summary of the invention

[0003] The invention aims to solve the problem of extending the belt of excavation and subsequent supporting transportation equipment without stopping or stopping for a short time.

[0004] The present invention provides the following technical solution: a belt extension device, comprising a loading track frame, a telescopic frame, and a connecting frame, a belt height adjustment frame and a guide slide frame which are sequentially connected in series through a hinge structure; the connecting frame has a connecting portion which can be hingedly connected to a moving frame;

[0005] The connecting frame, belt height adjustment frame and telescopic frame are all equipped with rollers that can support the belt; the belt height adjustment frame can raise the rollers on it to lift the belt;

[0006] The loading track frame is assembled on the guide slide through a detachable structure, the front guide structure on the loading track frame is aligned with the rear guide structure on the guide slide, the telescopic frame in the folded state is stored on the front guide structure of the loading track frame, the first frame body of the telescopic frame is stopped by the limiting structure on the loading track frame, and the telescopic frame is unfolded in turn and slides out along the rear guide structure of the guide slide to serve as a conveyor belt machine frame.

[0007] Furthermore, the guide slide is provided with a guide rail for the loading track frame to pass through, and a rear sliding limit rail and a rear smooth track for the telescopic frame to unfold; the rear sliding limit rail and the rear smooth track constitute a rear guide structure, the rear smooth track supports the telescopic frame, and the rear sliding limit rail serves as a lateral limit; the guide rail is perpendicular to the rear guide structure, and the loading track frame can be horizontally inserted into the guide slide.

[0008] Furthermore, the loading track frame is provided with a front sliding limit track and a front smooth track for unfolding the telescopic frame, and a guide beam can be inserted into the guide track of the guide slide; the front sliding limit track and the front smooth track constitute a front guide structure; the front smooth track supports the telescopic frame, and the front sliding limit track serves as a lateral limit; the front end of the front smooth track is fixed with a limit block by bolts; the limit block serves as a limit structure to stop the first frame body of the telescopic frame.

[0009] Furthermore, a slope is arranged at the end of the rear sliding track of the guide slide.

[0010] Furthermore, the telescopic frame includes several roller frames connected in sequence, each roller frame is fixed with a guide column extending forward, the guide column on the previous roller frame is slidably inserted into the sliding sleeve at the end of the guide column on the next roller frame; the guide columns on several roller frames are arranged in sequence in staggered layers; and rollers are provided on the roller frames.

[0011] Furthermore, after two adjacent frames of the telescopic frame are fully unfolded, the two frames are connected to an external fixing frame by bolts to form a complete frame.

[0012] Furthermore, the connecting frame is hingedly connected to the rigid frame or the self-moving tail intermediate frame by a pin shaft; the belt height adjustment frame is hingedly connected to the connecting frame by a pin shaft; and the guide slide is hingedly connected to the belt height adjustment frame by a pin shaft.

[0013] Furthermore, the connecting frame, the belt height-adjusting frame and the telescopic frame are all equipped with grooved rollers and flat rollers.

[0014] Furthermore, the connecting frame includes a supporting frame and a roller frame, the front end and the rear end of the supporting frame are both provided with pin holes, the roller frame is installed on the supporting frame, and the roller is installed on the roller frame.

[0015] Furthermore, the belt height-adjusting frame includes a base, a lifting frame, a lifting cylinder and a movable roller frame; the lifting frame and the base are connected through square guide sleeves at the four corners and the lifting cylinder in the middle, and the movable roller frame is installed on the lifting frame.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The device adopts a design that combines a connecting frame, a belt height-adjusting frame, a telescopic frame, a guide slide, a loading track frame, a trough roller, a flat roller and an external fixed frame. It can be used with a rigid frame or a self-moving machine tail. It can realize the mechanized extension of the belt without stopping or stopping the excavation and the subsequent supporting transportation equipment for a short time. After the two adjacent frames of the telescopic frame are fully unfolded, the two frames are connected to the external fixed frame by bolts to form a complete frame. The entire telescopic frame can replace the original H frame and serve as a conveyor belt machine frame. Compared with the previous manual installation of the H frame, it greatly reduces the labor intensity of workers, can effectively meet the increasing excavation footage requirements, and improve excavation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a belt extension device;

[0019] Figure 2 It is a schematic diagram of the structure of the belt extension device after it is partially unfolded;

[0020] Figure 3 is a structural schematic diagram of a connecting frame;

[0021] Figure 4 This is a structural diagram of the belt height adjustment frame;

[0022] Figure 5 It is a structural schematic diagram of a telescopic frame;

[0023] Figure 6 is a structural schematic diagram of a guide slide;

[0024] Figure 7 It is a schematic diagram of the structure of the loading track frame.

[0025] In the figure: 1-connecting frame; 2-belt height adjustment frame; 3-telescopic frame; 4-guide slide; 5-loading track frame; 6-grooved roller; 7-flat roller; 8-external fixed frame; 1.1-support frame; 1.2-roller frame; 2.1-base; 2.2-lifting frame; 2.3-lifting cylinder; 2.4-movable roller frame; 3.1-sliding sleeve; 3.2-guide column; 3.3-roller frame; 4.1-guide rail; 4.2-rear limit rail; 4.3-rear smooth path; 5.1-front limit rail; 5.2-front smooth path; 5.3-guide beam; 5.4-limit block. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] like Figure 1 , Figure 2 As shown: a belt extension device includes a loading track frame 5, a telescopic frame 3, and a connecting frame 1, a belt height adjustment frame 2 and a guide slide 4 which are connected in series in sequence through a hinged structure; the connecting frame 1 has a connecting part that can be hingedly connected to a moving frame body, and the moving frame body includes a rigid frame and a self-moving tail intermediate frame.

[0028] The connecting frame 1, the belt height-adjusting frame 2 and the telescopic frame 3 are all equipped with rollers capable of supporting the belt; the belt height-adjusting frame 2 can raise the rollers thereon to lift the belt.

[0029] The loading track frame 5 is assembled on the guide slide 4 through a detachable structure, the front guide structure on the loading track frame 5 is aligned with the rear guide structure on the guide slide 4, the telescopic frame 3 in the folded state is stored on the front guide structure of the loading track frame 5, the first frame body of the telescopic frame 3 is stopped by the limit structure on the loading track frame 5 to prevent the telescopic frame 3 from being completely dislodged, and the telescopic frame 3 is sequentially unfolded and slides out along the rear guide structure of the guide slide 4 to serve as a conveyor belt machine frame. After the two adjacent frames of the telescopic frame 3 are fully unfolded, the two frames are connected by bolts to form an external fixed frame 8 to form a complete frame.

[0030] The connecting frame 1 is hingedly connected to the rigid frame or the middle frame at the tail of the self-moving machine by a pin shaft; the belt height adjustment frame 2 is hingedly connected to the connecting frame 1 by a pin shaft; the guide slide 4 is hingedly connected to the belt height adjustment frame 2 by a pin shaft. The connecting frame 1, the belt height adjustment frame 2 and the telescopic frame 3 are all equipped with grooved rollers 6 and flat rollers 7.

[0031] like Figure 6 As shown: the guide slide 4 is provided with a guide track 4.1 for the loading track frame 5 to penetrate, and a rear sliding limit track 4.2 and a rear smooth track 4.3 for the telescopic frame 3 to be unfolded; the rear sliding limit track 4.2 and the rear smooth track 4.3 constitute a rear guide structure, the rear smooth track 4.3 supports the telescopic frame 3, and the rear sliding limit track 4.2 serves as a lateral limit to prevent the telescopic frame 3 from swinging left and right; the guide track 4.1 is perpendicular to the rear guide structure, and the loading track frame 5 can be horizontally inserted into the guide slide 4, and the loading track frame 5 can be inserted into the guide slide 4 like a drawer.

[0032] The end of the rear sliding track 4.3 of the guide slide 4 is provided with a slope to facilitate the landing of the telescopic frame 3.

[0033] like Figure 7 As shown: the loading track frame 5 is provided with a front sliding limit track 5.1 and a front smooth track 5.2 for the expansion of the telescopic frame 3, and a guide beam 5.3 that can be inserted into the guide track 4.1 of the guide slide 4; the front sliding limit track 5.1 and the front smooth track 5.2 constitute a front guide structure; the front smooth track 5.2 supports the telescopic frame 3, and the front sliding limit track 5.1 serves as a lateral limit; the front end of the front smooth track 5.2 is fixed with a limit block 5.4 by bolts; the limit block 5.4 serves as a limit structure to stop the first frame body of the telescopic frame 3; the limit block 5.4 is fixed to the front smooth track 5.2 by bolts, which is convenient for unloading the current telescopic frame 3 and loading the next group of telescopic frames 3.

[0034] After the connecting frame 1, the belt height adjustment frame 2, and the guide slide 4 are connected to the rigid frame or the middle frame at the tail of the self-moving machine, they move forward with the entire rear supporting transportation equipment. When it is necessary to extend the belt, the machine is stopped for a short time, and the belt is lifted by the belt height adjustment frame 2. A certain space is formed behind the belt height adjustment frame 2, and the loading track frame 5 is pulled out, and the telescopic frame 3 is placed on the loading track frame 5. The first frame body of the telescopic frame 3 close to the belt height adjustment frame 2 is placed after the limit block 5.4 of the loading track frame 5, and the loading track frame 5 together with the telescopic frame 3 is pushed into the appropriate position in the guide slide 4, and the belt height adjustment frame 2 is lowered back to the appropriate position, and the installation of the telescopic frame 3 is completed. As the excavation working face moves forward, the telescopic frame 3 is unfolded in sequence. After the two adjacent frames are fully unfolded, the external fixed frame 8 is fixed to the two adjacent frames with bolts to form a complete frame. The entire telescopic frame 3 can replace the original H frame and serve as the conveyor belt machine frame. When the entire telescopic frame 3 is fully unfolded, the limit block 5.4 on the loading track frame 5 is removed, and the connecting frame 1, the belt height adjustment frame 2, the guide slide 4 and the loading track frame 5 continue to move forward with the working surface conveying equipment. When the current telescopic frame 3 is completely on the ground and there is enough space to put down a new set of telescopic frames 3, the limit block 5.4 is fixed and a new cycle is started again, so as to realize the continuous deployment of the telescopic frames 3.

[0035] like Figure 5 As shown: the telescopic frame 3 includes a plurality of roller frames 3.3 connected in sequence, each roller frame 3.3 is fixed with a guide column 3.2 extending forward, the guide column 3.2 on the previous roller frame 3.3 is slidably inserted into the sliding sleeve 3.1 at the end of the guide column 3.2 on the subsequent roller frame 3.3, and the roller frames 3.3 support each other through the guide columns 3.2; the guide columns 3.2 on the plurality of roller frames 3.3 are arranged in sequence and in staggered layers, and the spacing between the roller frames 3.3 is equal; rollers are provided on the roller frames 3.3.

[0036] like Figure 3 As shown: the connecting frame 1 includes a supporting frame 1.1 and a roller frame 1.2. The front end and the rear end of the supporting frame 1.1 are provided with pin holes. The pin hole at the front end of the supporting frame 1.1 is connected to the rigid frame or the tail intermediate frame of the self-moving machine, and the pin hole at the rear end is connected to the belt height adjustment frame 2. The roller frame 1.2 is installed on the supporting frame 1.1, and the roller is installed on the roller frame 1.2.

[0037] like Figure 4 The belt height adjustment frame 2 includes a base 2.1, a lifting frame 2.2, a lifting cylinder 2.3 and a movable roller frame 2.4; the lifting frame 2.2 and the base 2.1 are connected by the square guide sleeves at the four corners and the lifting cylinder 2.3 in the middle, and the movable roller frame 2.4 is installed on the lifting frame 2.2. When the belt needs to be lifted, the lifting cylinders 2.3 on both sides of the belt height adjustment frame 2 extend, and the lifting frame 2.2 rises steadily to lift the belt, and the square guide sleeves at the four corners can play a guiding role.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A belt extension device, characterized in that: It comprises a loading track frame (5), a telescopic frame (3), and a connecting frame (1), a belt height adjustment frame (2) and a guide slide frame (4) which are sequentially connected in series through an articulated structure; the connecting frame (1) has a connecting portion which can be hingedly connected to a movable frame body; The connecting frame (1), the belt height adjustment frame (2) and the telescopic frame (3) are all equipped with rollers capable of supporting the belt; the belt height adjustment frame (2) can raise the rollers thereon to lift the belt; The loading track frame (5) is assembled on the guide slide (4) through a detachable structure, the front guide structure on the loading track frame (5) is aligned with the rear guide structure on the guide slide (4), the telescopic frame (3) in a folded state is stored on the front guide structure of the loading track frame (5), the first frame body of the telescopic frame (3) is stopped by the limiting structure on the loading track frame (5), and the telescopic frame (3) is unfolded in turn and slides out along the rear guide structure of the guide slide (4), serving as a conveyor belt machine frame.

2. A belt extension device according to claim 1, characterized in that: The guide slide (4) is provided with a guide track (4.1) for the loading track frame (5) to penetrate, and a rear sliding limit track (4.2) and a rear smooth path (4.3) for the telescopic frame (3) to unfold; the rear sliding limit track (4.2) and the rear smooth path (4.3) constitute a rear guide structure, the rear smooth path (4.3) supports the telescopic frame (3), and the rear sliding limit track (4.2) serves as a lateral limit; the guide track (4.1) is perpendicular to the rear guide structure, and the loading track frame (5) can be horizontally inserted into the guide slide (4).

3. A belt extension device according to claim 2, characterized in that: The loading track frame (5) is provided with a front sliding limit track (5.1) and a front smooth track (5.2) for the telescopic frame (3) to be unfolded, and a guide crossbeam (5.3) that can be inserted into the guide track (4.1) of the guide slide frame (4); the front sliding limit track (5.1) and the front smooth track (5.2) constitute a front guide structure; the front smooth track (5.2) supports the telescopic frame (3), and the front sliding limit track (5.1) serves as a lateral limit; the front end of the front smooth track (5.2) is fixed with a limit block (5.4) by bolts; the limit block (5.4) serves as a limit structure to stop the first frame body of the telescopic frame (3).

4. A belt extension device according to claim 2, characterized in that: The end of the rear smooth path (4.3) of the guide slide (4) is provided with a slope.

5. A belt stretching device according to any one of claims 1 to 4, characterized in that: The telescopic frame (3) comprises a plurality of roller frames (3.3) connected in sequence, each roller frame (3.3) is fixed with a guide column (3.2) extending forward, the guide column (3.2) on the preceding roller frame (3.3) is slidably inserted into a sliding sleeve (3.1) at the end of the guide column (3.2) on the following roller frame (3.3); the guide columns (3.2) on the plurality of roller frames (3.3) are arranged in sequence and in staggered layers; and rollers are arranged on the roller frames (3.3).

6. A belt extension device according to claim 5, characterized in that: After two adjacent frames of the telescopic frame (3) are fully unfolded, the two frames are connected to an external fixing frame (8) via bolts to form a complete frame.

7. A belt extension device according to claim 1, characterized in that: The connecting frame (1) is hingedly connected to the rigid frame or the intermediate frame at the tail of the self-moving machine by a pin shaft; the belt height adjustment frame (2) is hingedly connected to the connecting frame (1) by a pin shaft; and the guide slide (4) is hingedly connected to the belt height adjustment frame (2) by a pin shaft.

8. A belt extension device according to claim 1, characterized in that: The connecting frame (1), the belt height adjustment frame (2) and the telescopic frame (3) are all equipped with grooved rollers (6) and flat rollers (7).

9. A belt extension device according to claim 7, characterized in that: The connecting frame (1) comprises a supporting frame (1.1) and a roller frame (1.2), the front end and the rear end of the supporting frame (1.1) are both provided with pin holes, the roller frame (1.2) is mounted on the supporting frame (1.1), and the rollers are mounted on the roller frame (1.2).

10. The belt extension device according to claim 1, characterized in that: The belt height adjustment frame (2) comprises a base (2.1), a lifting frame (2.2), a lifting cylinder (2.3) and a movable roller frame (2.4); the lifting frame (2.2) and the base (2.1) are connected via square guide sleeves at four corners and a lifting cylinder (2.3) in the middle, and the movable roller frame (2.4) is installed on the lifting frame (2.2).

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