Belt extension device

Abstract

The present application belongs to the technical field of coal mine underground roadway tunneling and supporting transportation, and particularly relates to a belt extension device; the device comprises a loading track frame, an extension frame, and a connecting frame, a belt height adjusting frame and a guide slide frame which are sequentially connected through a hinged structure; the connecting frame, the belt height adjusting frame and the extension frame are all provided with supporting rollers capable of supporting the belt; the loading track frame is assembled on the guide slide frame, the front guide structure on the loading track frame is aligned with the rear guide structure on the guide slide frame, the extension frame in the folded state is accommodated on the front guide structure of the loading track frame, the first frame body of the extension frame is stopped at the limiting structure on the loading track frame, and the extension frame is sequentially unfolded and then slides out along the rear guide structure of the guide slide frame; the device can be matched with a rigid frame or a self-moving tail and used, realizes the mechanized extension of the belt under the premise that the tunneling and the supporting transportation equipment do not stop or stop for a short time, reduces the labor intensity of workers, meets the increasing tunneling footage requirements, and improves the tunneling efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of coal mine roadway tunneling and supporting transportation, and particularly relates to a belt extension device. BACKGROUND

[0002] Currently, the main mode of supporting transportation after roadway tunneling is a bridge-type loader with a rigid frame or a self-moving tail, and the lap distance is generally 30-35 meters. With the continuous progress of tunneling and supporting technology, it is possible to tunnel more than 50 meters per day in some mines, and the lap distance provided by the bridge-type loader with a rigid frame or a self-moving tail cannot meet the needs of the tunneling progress per day. Thus, belt extension becomes a prominent problem. When manually installing an H-frame to extend the belt, all equipment in the tunneling system needs to be stopped, which seriously restricts the tunneling progress efficiency. Therefore, it is urgent to extend the belt under the premise of no shutdown or short shutdown of the tunneling and supporting equipment. SUMMARY

[0003] The present application is to solve the problem of extending the belt under the premise of no shutdown or short shutdown of the tunneling and supporting equipment.

[0004] The present application provides the following technical solution: a belt extension device, comprising a loading rail frame, an extension frame, and a connecting frame, a belt height adjusting frame, and a guide sliding frame connected in sequence through a hinged structure; the connecting frame is provided with a connecting part that can be hingedly connected with a moving frame body;

[0005] The connecting frame, the belt height adjusting frame, and the extension frame are all provided with a supporting roller that can support the belt; the belt height adjusting frame can raise the supporting roller thereon to lift the belt;

[0006] The loading rail frame is assembled on the guide sliding frame through a detachable structure, the front guide structure on the loading rail frame is aligned with the rear guide structure on the guide sliding frame, the extension frame in the folded state is stored on the front guide structure of the loading rail frame, the first frame body of the extension frame is stopped at the limiting structure on the loading rail frame, and the extension frame is sequentially unfolded and slides out along the rear guide structure of the guide sliding frame to serve as a conveyor belt machine rack.

[0007] Further, the guide sliding frame is provided with a guide rail through which the loading rail frame can pass, a rear sliding limiting rail and a rear smooth path for unfolding the extension frame; the rear sliding limiting rail and the rear smooth path constitute the rear guide structure, the rear smooth path supports the extension frame, and the rear sliding limiting rail serves as a transverse limiting; the guide rail is perpendicular to the rear guide structure, and the loading rail frame can be inserted into the guide sliding frame horizontally.

[0008] Further, the loading track frame is provided with a front sliding limiting 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 limiting track and the front smooth track form a front guide structure; the front smooth track supports the telescopic frame, and the front sliding limiting track serves as a transverse limiting; the front end of the front smooth track is fixed with a limiting block by a bolt; the limiting block serves as a limiting structure to stop the first frame body of the telescopic frame.

[0009] Further, the end of the rear smooth track of the guide slide is provided with a slope.

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

[0011] Further, after the two frame bodies of the telescopic frame are completely unfolded, the two frame bodies are connected by a bolt to form a complete frame with an outer fixed frame.

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

[0013] Further, the connecting frame, the belt height adjusting frame and the telescopic frame are all provided with groove-shaped supporting rollers and flat supporting rollers.

[0014] Further, the connecting frame comprises a supporting frame and a supporting roller frame, the front end and the tail end of the supporting frame are both provided with pin holes, the supporting roller frame is installed on the supporting frame, and the supporting rollers are installed on the supporting roller frame.

[0015] Further, the belt height adjusting frame comprises a base, a lifting frame, a lifting oil cylinder and a moving supporting roller frame; the lifting frame and the base are connected by a square guide sleeve at four corners and the lifting oil cylinder in the middle, and the moving supporting roller frame is installed on the lifting frame.

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

[0017] The device adopts the combined design of the connecting frame, the belt height adjusting frame, the telescopic frame, the guide slide, the loading track frame, the groove-shaped supporting roller, the flat supporting roller and the outer fixed frame, and can be matched with the rigid frame or the self-moving tail; the mechanical extension of the belt is realized under the premise that the tunneling and the matched transport equipment do not stop or stop for a short time; after the two frame bodies of the telescopic frame are completely unfolded, the two frame bodies are connected by a bolt to form a complete frame with an outer fixed frame; the whole telescopic frame can replace the original H frame and serve as the rack of the belt conveyor; compared with the previous manual installation of the H frame, the labor intensity of workers is greatly reduced, the increasing tunneling footage requirement can be effectively met, and the tunneling efficiency is improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the belt extension device.

[0019] Figure 2 This is a schematic diagram of the belt extension device after it has been partially unfolded.

[0020] Figure 3 This is a schematic diagram of the connecting frame structure;

[0021] Figure 4 This is a schematic diagram of the belt conveyor height adjustment frame.

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

[0023] Figure 6 This is a schematic diagram of the guide carriage structure;

[0024] Figure 7 This is a structural diagram of the loading track frame.

[0025] In the diagram: 1-Connecting frame; 2-Belt height adjustment frame; 3-Telescopic frame; 4-Guide slide; 5-Loading track frame; 6-Troughing idler; 7-Flat idler; 8-External fixed frame; 1.1-Support frame; 1.2-Idler frame; 2.1-Base; 2.2-Lifting frame; 2.3-Lifting cylinder; 2.4-Moving idler frame; 3.1-Sliding sleeve; 3.2-Guide column; 3.3-Idler frame; 4.1-Guide track; 4.2-Rear limit track; 4.3-Rear smooth track; 5.1-Front limit track; 5.2-Front smooth track; 5.3-Guide beam; 5.4-Limit block. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[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 connected in series by a hinge structure; the connecting frame 1 has a connecting part that can be hinged to the movable frame body, and the movable 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 provided with supporting rollers; the belt height adjusting frame 2 can lift the supporting rollers thereon to lift the belt.

[0029] The loading track frame 5 is detachably assembled on the guide sliding frame 4, the front guide structure on the loading track frame 5 is aligned with the rear guide structure on the guide sliding frame 4, the telescopic frame 3 in the folded state is accommodated 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 to prevent the telescopic frame 3 from being taken out as a whole, and the telescopic frame 3 is sequentially unfolded and then slides out along the rear guide structure of the guide sliding frame 4 to serve as the rack of the belt conveyor. When the two adjacent frame bodies of the telescopic frame 3 are completely unfolded, the two frame bodies are connected by the external fixed frame 8 through bolts to form a complete frame.

[0030] The connecting frame 1 is connected to the middle frame of the rigid frame or the self-moving tail through pin shaft hinging; the belt height adjusting frame 2 is connected to the connecting frame 1 through pin shaft hinging; and the guide sliding frame 4 is connected to the belt height adjusting frame 2 through pin shaft hinging. The connecting frame 1, the belt height adjusting frame 2 and the telescopic frame 3 are all provided with groove-shaped supporting rollers 6 and flat supporting rollers 7.

[0031] As shown in Figure 6 , the guide sliding frame 4 is provided with the guide rail 4.1 through which the loading track frame 5 can be inserted, the rear sliding limiting rail 4.2 and the rear smooth path 4.3 through which the telescopic frame 3 can be unfolded; the rear sliding limiting rail 4.2 and the rear smooth path 4.3 form the rear guide structure, the rear smooth path 4.3 supports the telescopic frame 3, and the rear sliding limiting rail 4.2 serves as the lateral limiting to prevent the telescopic frame 3 from swinging left and right; the guide rail 4.1 is perpendicular to the rear guide structure, the loading track frame 5 can be inserted into the guide sliding frame 4 horizontally, and the loading track frame 5 can be inserted into the guide sliding frame 4 like a drawer.

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

[0033] As shown in Figure 7 , the loading track frame 5 is provided with the front sliding limiting rail 5.1 and the front smooth path 5.2 through which the telescopic frame 3 can be unfolded, and the guide beam 5.3 which can be inserted into the guide rail 4.1 of the guide sliding frame 4; the front sliding limiting rail 5.1 and the front smooth path 5.2 form the front guide structure; the front smooth path 5.2 supports the telescopic frame 3, and the front sliding limiting rail 5.1 serves as the lateral limiting; the front end of the front smooth path 5.2 is fixed with the limiting block 5.4 through bolts; the limiting block 5.4 stops the first frame body of the telescopic frame 3 as the limiting structure; and the limiting block 5.4 is fixed on the front smooth path 5.2 through bolts to facilitate the unloading of the current telescopic frame 3 and the loading of the next telescopic frame 3.

[0034] The connecting frame 1, the belt height adjusting frame 2 and the guide sliding frame 4 are connected to the rear of the rigid frame or the self-moving tail intermediate frame, and move forward with the whole rear supporting and transporting device. When the belt needs to be extended, the belt is lifted by the belt height adjusting frame 2, a space is formed behind the belt height adjusting frame 2, the loading track frame 5 is pulled out, the telescopic frame 3 is placed on the loading track frame 5, the telescopic frame 3 is placed behind the limiting block 5.4 of the loading track frame 5, the telescopic frame 3 is pushed into the guide sliding frame 4, the belt height adjusting frame 2 is lowered to the appropriate position, and the telescopic frame 3 is installed. With the forward movement of the working face, the telescopic frame 3 is unfolded in sequence, the outer fixed frame 8 is fixed on the adjacent two frame bodies by bolts after the two frame bodies are completely unfolded, and a complete frame is formed. The whole telescopic frame 3 can replace the original H frame and serve as the frame of the belt conveyor. When the telescopic frame 3 is completely unfolded, the limiting block 5.4 on the loading track frame 5 is removed, the connecting frame 1, the belt height adjusting frame 2, the guide sliding frame 4 and the loading track frame 5 continue to move forward with the working face conveying device, and when there is enough space to place a new telescopic frame 3, the limiting block 5.4 is fixed, and a new cycle is started, so that the telescopic frame 3 can be continuously laid out.

[0035] As shown in Figure 5 : the telescopic frame 3 includes a plurality of sequentially connected roller frames 3.3, a guide column 3.2 extending forward is fixed on each roller frame 3.3, the guide column 3.2 on the front roller frame 3.3 is slidingly inserted into the sleeve 3.1 at the end of the guide column 3.2 on the rear roller frame 3.3, and the roller frames 3.3 are supported by the guide columns 3.2; the guide columns 3.2 on the roller frames 3.3 are arranged in sequence in staggered layers, and the spacing between the roller frames 3.3 is equal; and a roller is arranged on the roller frame 3.3.

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

[0037] As shown in Figure 4 : the belt height adjusting frame 2 includes a base 2.1, a lifting frame 2.2, a lifting oil cylinder 2.3 and a movable roller frame 2.4; the lifting frame 2.2 and the base 2.1 are connected by four square guide sleeves and a lifting oil 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 oil cylinders 2.3 on both sides of the belt height adjusting frame 2 are extended, the lifting frame 2.2 is stably lifted, the belt is lifted, and the four square guide sleeves can guide.

[0038] The foregoing description of the disclosed embodiments enables one skilled in the art to make or use the application. Numerous modifications of those embodiments can be apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without the use of the innovation falling outside the scope of the invention. Therefore, the present application is not intended to be limited to the described embodiments, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A belt extension device, characterized in that: It includes a loading track frame (5), a telescopic frame (3), and a connecting frame (1), a belt height adjustment frame (2), and a guide carriage (4) connected in series by a hinge structure; the connecting frame (1) has a connecting part that can be hinged to the movable frame body; The connecting frame (1), the belt height adjustment frame (2) and the telescopic frame (3) are all equipped with idlers that can support the belt; the belt height adjustment frame (2) can raise the idlers on it 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 the folded state is stored on the front guide structure of the loading track frame (5). The first frame of the telescopic frame (3) is stopped by the limiting structure on the loading track frame (5). After the telescopic frame (3) is unfolded in sequence, it slides out along the rear guide structure of the guide slide (4) and serves as the frame of the conveyor belt. The guide slide (4) is provided with a guide rail (4.1) through which the loading rail frame (5) can pass, a rear sliding limit rail (4.2) and a rear smooth track (4.3) for the telescopic frame (3) to unfold; the rear sliding limit rail (4.2) and the rear smooth track (4.3) constitute the rear guide structure, the rear smooth track (4.3) supports the telescopic frame (3), and the rear sliding limit rail (4.2) serves as a lateral limit; the guide rail (4.1) is perpendicular to the rear guide structure, and the loading rail frame (5) can be inserted horizontally into the guide slide (4); 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 unfold, 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 the 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 the limit structure to stop the first frame of the telescopic frame (3); The telescopic frame (3) includes several roller frames (3.3) connected in sequence. Each roller frame (3.3) is fixed with a forward-extending guide post (3.2). The guide post (3.2) on the previous roller frame (3.3) is slidably inserted into the sliding sleeve (3.1) at the end of the guide post (3.2) on the next roller frame (3.3). The guide posts (3.2) on the several roller frames (3.3) are arranged in a staggered manner. Rollers are provided on the roller frames (3.3). 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 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).

2. The belt extension device according to claim 1, characterized in that: The rear smooth track (4.3) of the guide carriage (4) is provided with a ramp at the end.

3. The belt extension device according to claim 1, characterized in that: After the two adjacent frames of the telescopic frame (3) are fully extended, the two frames are connected by bolts to form an outer fixed frame (8) to form a complete frame.

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

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

6. A belt extension device according to claim 5, characterized in that: The connecting frame (1) includes a support frame (1.1) and a roller frame (1.2). The front and rear ends of the support frame (1.1) are provided with pin holes. The roller frame (1.2) is installed on the support frame (1.1) and the roller is installed on the roller frame (1.2).

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