WO2024125074A1

WO2024125074A1 - Multi-stage active telescopic belt conveyor

Info

Publication number: WO2024125074A1
Application number: PCT/CN2023/125316
Authority: WO
Inventors: 焦宏章; 郭文孝; 李刚; 姜翎燕; 刘磊; 赵海伟; 郝成林; 郑跃鹏; 刘玉波; 张少鹏; 周凯; 张银星; 谢学斌; 王腾; 赵鑫
Original assignee: 中国煤炭科工集团太原研究院有限公司; 山西天地煤机装备有限公司
Priority date: 2022-12-12
Filing date: 2023-10-19
Publication date: 2024-06-20
Also published as: CN115783639A; CN115783639B

Abstract

A multi-stage active telescopic belt conveyor, comprising locomotion parts (1), and a rotary chassis provided on the locomotion parts (1). A main frame body (2) is provided on the rotary chassis; a first-stage telescopic assembly (3) is provided on the main frame body (2); a rotary unloading part (5) is connected to one end of the first-stage telescopic assembly (3); multiple stages of secondary telescopic assemblies (4) connected in sequence are connected to the other end of the first-stage telescopic assembly (3); the secondary telescopic assemblies (4) connected to the first-stage telescopic assembly (3) slide along the first-stage telescopic assembly (3), and the first-stage telescopic assembly (3) and the secondary telescopic assemblies (4) are driven by a driving device to relatively slide, extend and retract; the adjacent secondary telescopic assemblies (4) relatively slide; multiple groups of carrier roller assemblies (7) used for bearing a belt are provided on the first-stage telescopic assembly (3) and the secondary telescopic assemblies (4); limiting devices are provided at the ends of the first-stage telescopic assembly (3) and the secondary telescopic assemblies (4) and used for limiting the telescopic length of the secondary telescopic assemblies (4); and supporting wheels (6) are provided at the bottoms of the secondary telescopic assemblies (4). The conveyor can actively move, turn, extend and retract, thereby implementing single-machine operation and multi-machine series operation.

Description

A multi-stage active telescopic belt transfer machine

Technical Field

The invention belongs to the technical field of underground coal mining transfer equipment, in particular to a multi-stage active telescopic belt transfer machine.

Background technique

During the tunnel opening construction process, the material is mainly discharged by shuttle cars or small scrapers. Shuttle car transportation is an intermittent transportation process, and it will repeatedly crush the bottom plate and damage the bottom plate. When using scraper transportation, the scraper needs to be extended regularly, and when the belt conveyor is laid later, the scraper withdrawal workload is large. Therefore, it is necessary to develop a mobile telescopic belt transfer machine to solve the material discharge problem during the tunnel opening construction process. On the one hand, the equipment needs to be able to move actively, so that it can follow the excavation equipment to move forward and backward, receive materials, unload materials and withdraw quickly; on the other hand, the transport belt needs to be able to freely retract within a certain length to achieve continuous discharge of materials at turns and different distances; at the same time, the equipment can be connected in series with multiple machines to meet the needs of different opening lengths.

The Chinese patent application number 202123236378.6 discloses a mobile material transfer machine, which is designed on a mobile component, but the transfer machine itself does not have the telescopic function and cannot achieve continuous material discharge at turns and different distances. The Chinese patent application number 201922478228.2 discloses an underground crawler mobile belt transfer machine, which can be displaced so that there is enough space behind the continuous miner for tunnel support, but the patent still does not have the telescopic function.

Summary of the invention

In order to solve the above problems, the present invention provides a multi-stage active telescopic belt transfer machine.

The present invention adopts the following technical scheme: a multi-stage active telescopic belt transfer machine, including a walking part, a revolving chassis arranged on the walking part, a main frame arranged on the revolving chassis, a first-level telescopic assembly arranged on the main frame, one end of the first-level telescopic assembly is connected to the revolving unloading part, the other end of the first-level telescopic assembly is connected to multiple levels of secondary telescopic assemblies connected in sequence, the secondary telescopic assembly connected to the first-level telescopic assembly slides along the first-level telescopic assembly, the first-level telescopic assembly and the secondary telescopic assembly are driven by a driving device to slide and retract relative to each other, and adjacent secondary telescopic assemblies slide relative to each other; a plurality of groups of roller assemblies for carrying belts are arranged on the first-level telescopic assembly and the secondary telescopic assembly, and a limiting device is arranged at the end of the first-level telescopic assembly and each secondary telescopic assembly to limit the telescopic length of the secondary telescopic assembly, and a supporting wheel is arranged at the bottom of the secondary telescopic assembly.

In some embodiments, the primary telescopic assembly has the same structure as the secondary telescopic assembly, including side frames arranged on both sides, multiple groups of connecting beams are arranged between the side frames on both sides, and the roller assembly is arranged on the connecting beams.

In some embodiments, a slideway composed of multiple pulley assemblies is provided on the inner side of the side frame for the secondary telescopic assembly connected thereto to slide along it.

In some embodiments, the pulley assembly includes two sets of upper and lower pulleys, and the pulleys are mounted on a pulley mounting frame, and the pulley mounting frame is fixed on the inner side of the side frame.

In some embodiments, the rotary unloading portion includes a rotatable unloading hopper, and the unloading hopper is driven to rotate by a hydraulic device.

In some embodiments, an emergency stop button is provided at the front end of the secondary telescopic assembly.

In some embodiments, the driving device includes a driving sprocket, which is driven by a reduction motor. A chain assembly is provided on the primary telescopic assembly, which is driven by the driving sprocket. The chain assembly is fixed to the secondary telescopic assembly, and the driving sprocket rotates to drive the secondary telescopic assembly forward or backward.

In some embodiments, the support wheel includes a connecting rod assembly, a lifting cylinder, a supporting cylinder, a fixing assembly, a sliding shoe assembly, a pushing cylinder and a tire. One end of the connecting rod assembly is hinged to the secondary telescopic assembly, and a tire is arranged at the other end of the connecting rod assembly. A lifting cylinder is also arranged between the middle part of the connecting rod assembly and the secondary telescopic assembly. A fixing assembly is arranged between the tires on both sides, and a supporting cylinder is arranged in the fixing assembly. The bottom of the supporting cylinder is connected to a sliding shoe assembly that can slide left and right, and one side of the sliding shoe assembly is connected to a pushing cylinder.

Compared with the prior art, the present invention has the following beneficial effects:

The present invention can follow the excavation equipment forward and backward, and at the same time requires the receiving part to actively move forward/backward/left/right following the unloading part of the excavation equipment, the unloading part is relatively fixed at the designated unloading point, and a multi-machine series combination is realized.

The present invention can follow the tunneling equipment to turn and enter the tunnel to be excavated, so the initial length of the equipment is required to be as short as possible and have good tunnel passability. On the other hand, the transportation distance of the whole machine is required to be as long as possible to reduce the number of equipment. At the same time, it is required that there is no need to loosen/tighten the belt when the transportation distance changes.

The present invention can be actively extended and retracted to meet the needs of single-machine operation and multi-machine series operation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of an active telescopic belt self-moving transfer machine according to the present invention;

FIG2 is a perspective view II of the active telescopic belt self-moving transfer machine of the present invention;

Figure 3 is a schematic diagram of a primary telescopic assembly;

Figure 4 is a schematic diagram of the support wheel structure;

Fig. 5 is a diagram of the working state of the support wheel 1;

Fig. 6 is a diagram II showing the working state of the support wheel;

Fig. 7 is a diagram of the support wheel working state III;

In the figure, 1-walking part, 2-main frame, 3-primary telescopic assembly, 4-secondary telescopic assembly, 5-rotating unloading part, 6-support wheel, 7-roller assembly, 301-side frame, 302-connecting beam, 303-pulley assembly, 6.1-connecting rod assembly, 6.2-lifting cylinder, 6.3-supporting cylinder, 6.4-fixing assembly, 6.5-slipper assembly, 6.6-pushing cylinder, 6.7-tire, 8-driving sprocket.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

As shown in Fig. 1-2, a multi-stage active telescopic belt transfer machine includes a walking part 1, a revolving chassis arranged on the walking part, a main frame 2 is arranged on the revolving chassis, a first-stage telescopic assembly 3 is arranged on the main frame 2, one end of the first-stage telescopic assembly 3 is connected to the revolving unloading part 5, and the other end of the first-stage telescopic assembly 3 is connected to multiple stages of secondary telescopic assemblies 4 connected in sequence, the secondary telescopic assembly 4 connected to the first-stage telescopic assembly 3 slides along the first-stage telescopic assembly 3, and the first-stage telescopic assembly 3 and the secondary telescopic assembly 4 are driven by a driving device to slide and retract relative to each other, and adjacent secondary telescopic assemblies 4 slide relative to each other; a plurality of groups of roller assemblies 7 for bearing belts are arranged on the first-stage telescopic assembly 3 and the secondary telescopic assembly 4, and a limiting device is arranged at the end of the first-stage telescopic assembly 3 and each secondary telescopic assembly 4 to limit the telescopic length of the secondary telescopic assembly 4; a supporting wheel 6 is arranged at the bottom of the secondary telescopic assembly 4.

As shown in FIG. 3 , the primary telescopic assembly 3 has the same structure as the secondary telescopic assembly 4 , including side frames 301 arranged on both sides, multiple groups of connecting beams 302 are arranged between the side frames 301 on both sides, and the roller assembly 7 is arranged on the connecting beams 302 .

As shown in FIG3 , a slideway composed of a plurality of pulley assemblies 303 is disposed inside the side frame 301 , for the secondary telescopic assembly 4 connected thereto to slide along the slideway.

The pulley assembly 303 includes two upper and lower pulley groups, and the pulleys are mounted on a pulley mounting frame, and the pulley mounting frame is fixed on the inner side of the side frame. The secondary telescopic assembly 4 is arranged between the upper and lower pulley groups.

The rotary unloading part 5 comprises a rotatable unloading hopper, which is driven to rotate by a hydraulic device. The rotatable rotary unloading part 5 can ensure that the unloading angle is always above the transfer belt.

The telescopic arm can be extended and retracted with the movement, and the unloading part and the receiving part are separated in structure and can rotate separately to better realize the transfer of materials.

An emergency stop button is arranged at the front end of the secondary telescopic component 4, and is also equipped with long-distance remote control operation.

The driving device includes a driving sprocket 8, which is driven by a reduction motor. A chain assembly is arranged on the primary telescopic assembly 3, which is driven by the driving sprocket 8. The chain assembly is fixed to the secondary telescopic assembly 4, and the driving sprocket 8 rotates to drive the secondary telescopic assembly 4 forward or backward.

As shown in Figure 4, the support wheel 6 includes a connecting rod assembly 6.1, a lifting cylinder 6.2, a supporting cylinder 6.3, a fixing assembly 6.4, a slipper assembly 6.5, a pushing cylinder 6.6 and a tire 6.7. One end of the connecting rod assembly 6.1 is hinged to the secondary telescopic assembly 4, and the tire 6.7 is arranged at the other end of the connecting rod assembly 6.1. A lifting cylinder 6.2 is also arranged between the middle part of the connecting rod assembly 6.1 and the secondary telescopic assembly 4. A fixing assembly 6.4 is arranged between the tires 6.7 on both sides, and a supporting cylinder 6.3 is arranged in the fixing assembly 6.4. The bottom of the supporting cylinder 6.3 is connected to a slipper assembly 6.5 that can slide left and right, and one side of the slipper assembly 6.5 is connected to a pushing cylinder 6.6.

The support wheel 6 can be used not only for support but also for adjusting the angle of the telescopic assembly. As shown in Figures 5-7, when working, the support cylinder 6.3 is first extended, and the sliding shoe assembly 6.5 contacts the ground. When the contact pressure is large enough, the telescopic assembly is lifted, and the push cylinder 6.6 is extended. The whole is offset under the action of the push cylinder 6.6, thereby adjusting the position of the end of the entire device.

The mobile telescopic belt loader is mainly used for the transfer of materials from the excavation equipment to the transport belt. It is particularly suitable for applications such as chute opening, tunnel connection, room-and-pillar mining, continuous mining and filling, where the excavation distance is short and frequent turns are required. The shortest length of a single vehicle is 12.7 meters, the turning radius is 6 meters, and the maximum transport distance is 19 meters. In addition, it can also be used for:

1. Traditional post-excavation equipment replaces the bridge-type loader and shortens the length of tunnel preparation.

2. After rapid excavation, the bridge-type transfer machine is cancelled and replaced by a self-moving tail machine. A belt is used together with the chute belt. There is no need to loosen/tighten the belt during a single cycle of excavation and there is no need to add an H-frame of the belt conveyor.

The mobile telescopic belt transfer machine is used to complete the coal transfer task during the tunnel opening construction. During the excavation and withdrawal process, only one person is needed to operate the whole machine. Compared with the use of a scraper, the number of underground workers is greatly reduced, and the labor cost of the mine is reduced. Continuous transportation is achieved, and the operating efficiency is improved, thereby improving the economic benefits of the coal mine.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

A multi-stage active telescopic belt transfer machine, characterized in that it comprises a walking part (1), a revolving chassis arranged on the walking part, a main frame (2) arranged on the revolving chassis, a primary telescopic assembly (3) arranged on the main frame (2), one end of the primary telescopic assembly (3) connected to a revolving unloading part (5), the other end of the primary telescopic assembly (3) connected to a plurality of sequentially connected secondary telescopic assemblies (4), the secondary telescopic assembly (4) connected to the primary telescopic assembly (3) sliding along the primary telescopic assembly (3), the primary telescopic assembly (3) and the secondary telescopic assembly (4) driven by a driving device to slide and retract relative to each other, and adjacent secondary telescopic assemblies (4) sliding relative to each other; a plurality of roller assemblies (7) for carrying belts are arranged on the primary telescopic assembly (3) and the secondary telescopic assembly (4), and a limiting device is arranged at the end of the primary telescopic assembly (3) and each secondary telescopic assembly (4) for limiting the telescopic length of the secondary telescopic assembly (4); and a supporting wheel (6) is arranged at the bottom of the secondary telescopic assembly (4).
The multi-stage active telescopic self-propelled belt transfer machine according to claim 1 is characterized in that: the first-stage telescopic component (3) has the same structure as the secondary telescopic component (4), including side frames (301) arranged on both sides, and multiple groups of connecting beams (302) are arranged between the side frames (301) on both sides, and the roller assembly (7) is arranged on the connecting beams (302).
The multi-stage active telescopic belt self-moving transfer machine according to claim 2 is characterized in that a slideway composed of multiple pulley assemblies (303) is arranged on the inner side of the side frame (301) for the secondary telescopic assembly (4) connected thereto to slide along it.
The multi-stage active telescopic belt self-propelled transfer machine according to claim 3 is characterized in that the pulley assembly (303) includes two sets of upper and lower pulleys, the pulleys are mounted on a pulley mounting frame, and the pulley mounting frame is fixed on the inner side of the side frame.
The multi-stage active telescopic belt self-propelled transfer machine according to claim 1 is characterized in that the rotary unloading part (5) includes a rotatable unloading hopper, and the unloading hopper is driven to rotate by a hydraulic device.
The multi-stage active telescopic self-propelled belt transfer machine according to claim 1 is characterized in that an emergency stop button is provided at the front end of the secondary telescopic component (4).
The multi-stage active telescopic belt self-moving transfer machine according to claim 1 is characterized in that: the driving device includes a driving sprocket (8), the driving sprocket (8) is driven by a reduction motor, a chain assembly is arranged on the primary telescopic assembly (3), the chain assembly is driven by the driving sprocket (8), the chain assembly is fixed to the secondary telescopic assembly (4), and the driving sprocket (8) rotates to drive the secondary telescopic assembly (4) to move forward or backward.
The multi-stage active telescopic belt self-propelled transfer machine according to claim 1 is characterized in that: the support wheel (6) includes a connecting rod assembly (6.1), a lifting cylinder (6.2), a supporting cylinder (6.3), a fixing assembly (6.4), a sliding shoe assembly (6.5), a pushing cylinder (6.6) and a tire (6.7); one end of the connecting rod assembly (6.1) is hinged to the secondary telescopic assembly (4); the other end of the connecting rod assembly (6.1) is provided with a tire (6.7); a lifting cylinder (6.2) is further provided between the middle of the connecting rod assembly (6.1) and the secondary telescopic assembly (4); a fixing assembly (6.4) is provided between the tires (6.7) on both sides; a supporting cylinder (6.3) is provided in the fixing assembly (6.4); the bottom of the supporting cylinder (6.3) is connected to a sliding shoe assembly (6.5) that can slide left and right; one side of the sliding shoe assembly (6.5) is connected to a pushing cylinder (6.6).