CN220702258U

CN220702258U - Conveying device and heading machine

Info

Publication number: CN220702258U
Application number: CN202322420425.5U
Authority: CN
Inventors: 王振亮; 边树杰; 盖巍巍
Original assignee: Sany Intelligent Equipment Co ltd; Sany Heavy Equipment Co Ltd
Current assignee: Sany Intelligent Equipment Co ltd; Sany Heavy Equipment Co Ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-04-02
Anticipated expiration: 2033-09-06

Abstract

The utility model relates to the field of heading machines, and provides a conveying device and a heading machine, wherein the conveying device comprises: a chute; a roller chain disposed within the chute; at least a pair of scraper blade, a pair of scraper blade set up in the both sides of roller chain respectively, and the top of scraper blade is the arc, and the working face of scraper blade is equipped with the arc depressed part. So set up, the single chain mechanism in the scraper chain structure formation that comprises roller chain and scraper blade replaces traditional limit double chain conveying mechanism, changes the sliding friction of original round-link chain into rolling friction, has effectively improved transmission efficiency, reduces the card material risk. And the arc structural design of cooperation scraper blade helps driving the material forward movement, and the area material effect is better, can further reduce card material phenomenon.

Description

Conveying device and heading machine

Technical Field

The utility model relates to the technical field of heading machines, in particular to a conveying device and a heading machine.

Background

In the coal mine tunnel excavation process, a first conveyor of the heading machine is used for conveying cut underground ore. At present, the first conveyor adopts a side double-chain structure to convey materials. The traditional limit double-stranded structure is including setting up two round-link chains in the chute both sides, through round-link chain and sprocket coupling, parallel slip realizes the transmission of material in the chute.

However, the applicant has found that the transport structures of the prior art have at least the following problems: when the heading machine works under the working condition of mudstone with larger water content, the transportation efficiency of the conveying structure is obviously reduced, and even the phenomenon of material clamping can occur.

Disclosure of Invention

The utility model aims to provide a conveying device and a heading machine, which aim to at least solve one of the technical problems in the prior art or related technologies.

In order to achieve the above object, the present utility model provides a transportation device comprising:

a chute;

a roller chain disposed within the chute;

at least a pair of scraper blade, a pair of the scraper blade sets up respectively the both sides of roller chain, the top of scraper blade is the arc, just the working face of scraper blade is equipped with the arc depressed part.

Preferably, the transportation device provided by the utility model further comprises:

at least a pair of connecting axle, a pair of the connecting axle parallel arrangement, the connecting axle perpendicular to the direction of travel of roller chain, a pair of scraper blade with the roller chain corresponds to be equipped with the confession a pair of two mounting holes that the connecting axle passed, a pair of the scraper blade pass through a pair of the connecting axle with the roller chain is connected.

Preferably, according to the transportation device provided by the utility model, the connecting shaft is welded and fixed with the mounting hole, and the mounting hole is provided with a chamfer at a welding position of the connecting shaft and the mounting hole, and the connecting shaft is provided with an annular groove corresponding to the chamfer.

the driving chain wheel and the driven wheel assembly are meshed with the roller chain, the driven wheel assembly is provided with an annular boss, and the roller chain is wound on the annular boss.

Preferably, according to the present utility model there is provided a transportation device, the driven wheel assembly comprising:

a support shaft;

the support sleeve is sleeved on the support shaft and is rotationally connected with the support shaft, and the support sleeve is provided with the annular boss;

and the end covers are respectively arranged at two ends of the supporting sleeve and are used for being abutted with the scraping plates.

the driving assembly is used for driving the driving sprocket to rotate and comprises a driving piece and a transmission shaft, one end of the transmission shaft is fixedly connected with the driving sprocket, and the other end of the transmission shaft is in transmission connection with the driving piece.

Preferably, according to the transportation device provided by the utility model, the number of the driving parts is two, the two driving parts are symmetrically arranged at two ends of the driving chain wheel,

the number of the transmission shafts is two, and the transmission shafts are arranged in one-to-one correspondence with the driving pieces.

Preferably, according to the transporting device provided by the utility model, the distance between the two inner link plates of the roller chain is larger than the width of the annular boss.

and the tensioning assembly is arranged on the chute and is used for adjusting the distance between the driving sprocket and the driven wheel assembly.

The utility model also provides a heading machine comprising a transport device as claimed in any one of the preceding claims.

One of the above technical solutions has the following advantages or beneficial effects:

the present utility model provides a transport device comprising: a chute; a roller chain disposed within the chute; at least a pair of scraper blade, a pair of scraper blade set up in the both sides of roller chain respectively, and the top of scraper blade is the arc, and the working face of scraper blade is equipped with the arc depressed part. So set up, the single chain mechanism in the scraper chain structure formation that comprises roller chain and scraper blade replaces traditional limit double chain conveying mechanism, changes the sliding friction of original round-link chain into rolling friction, has effectively improved transmission efficiency, reduces the card material risk. And the arc structural design of cooperation scraper blade helps driving the material forward movement, and the area material effect is better, can further reduce card material phenomenon.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a transportation device according to one embodiment of the present utility model;

FIG. 2 is a front view of a roller chain of one embodiment provided by the present utility model;

FIG. 3 is a top view of a roller chain of one embodiment provided by the present utility model;

FIG. 4 is a partial schematic view of FIG. 3 at A;

FIG. 5 is a schematic view of the structure of a screed according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the structure of a driven wheel assembly according to one embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a driven wheel assembly according to one embodiment of the present utility model;

FIG. 8 is a schematic view of the structure of a drive sprocket according to one embodiment of the present utility model;

FIG. 9 is a cross-sectional view of a drive sprocket according to one embodiment of the present utility model;

FIG. 10 is a schematic diagram of a drive assembly according to one embodiment of the present utility model;

FIG. 11 is a cross-sectional view of a drive assembly according to one embodiment of the present utility model;

reference numerals:

1: a chute; 2: a roller chain; 21: an inner link plate; 22: an outer link plate; 3: a scraper; 31: an arc-shaped concave portion; 32: a scraping part; 33: a connection part; 4: a connecting shaft; 41: an annular groove; 5: a mounting hole; 51: chamfering; 6: a drive sprocket; 7: a driven wheel assembly; 71: an annular boss; 72: a support shaft; 73: a support sleeve; 74: an end cap; 75: a fixing seat; 8: a drive assembly; 81: a driving member; 82: a transmission shaft; 83: a connecting sleeve; 84: a mounting base; 9: a tensioning assembly; 91: tensioning and driving; 92: a connecting seat; 10: and a main shovel plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The following describes a transportation device according to some embodiments of the present utility model with reference to fig. 1 to 11.

As shown in fig. 1 to 11, an embodiment of the present utility model provides a conveyor apparatus including a chute 1, a roller chain 2, and at least one pair of flights 3. Specifically, as shown in fig. 1, a roller chain 2 is disposed within the chute 1, specifically, at the center of the chute 1. The scrapers 3 are arranged in pairs and can be symmetrically distributed on the left side and the right side of the roller chain 2. The pairs of scrapers 3 are uniformly distributed at intervals along the running direction of the roller chain 2, and the number, the spacing and the like of the pairs of scrapers can be specifically determined according to actual design requirements. In the placement position of the conveyor shown in fig. 1, the vertical direction in the drawing is the left-right direction, and the horizontal direction in the drawing is the traveling direction of the roller chain 2.

As shown in fig. 2, the top of the squeegee 3 is arc-shaped, and the working surface on the right side of the squeegee 3 is provided with an arc-shaped recess 31. Specifically, the roller chain 2 continuously moves forwards from left to right along the direction indicated by the arrow in fig. 2, when the material contacts with the scraping plate 3, the arc top is beneficial to sliding of the material in the forward direction, and the right arc groove can better cover the material and drive the material to move forwards, so that the material carrying effect is effectively improved, the transportation efficiency is further improved, and the material clamping phenomenon is avoided. It should be noted that, regarding the placement position of the transporting device as shown in fig. 2, the upper end of the scraper 3 in the figure is the top of the scraper 3, and the left-right direction in the figure is the left-right direction; the roller chain 2 drives the scraping plate 3 to move rightwards, and the right side surface of the scraping plate 3, which is contacted with the materials, is the working surface of the scraping plate 3.

So set up, the single chain mechanism in the scraper chain conveying structure that comprises roller chain 2 and scraper blade 3 forms replaces traditional limit double chain conveying mechanism, changes the sliding friction of original round-link chain into rolling friction, has effectively improved transmission efficiency, reduces the card material risk. And the arc structural design of the scraper 3 is matched, so that the material forward motion is driven, the material carrying effect is better, and the material clamping phenomenon can be further reduced.

In some embodiments of the utility model, the transport device further comprises at least one pair of connecting shafts 4, for example optionally pins. The connecting shafts 4 are used in pairs and are correspondingly arranged with the scrapers arranged in pairs, so that the stress at the connecting positions is uniform, and the connection reliability is improved. As shown in fig. 3, a pair of connecting shafts 4 are parallel to each other and are disposed perpendicular to the traveling direction of the roller chain 2. The pair of scrapers 3 and the roller chain 2 are respectively provided with two mounting holes 5 through which the pair of connecting shafts 4 pass, and the two connecting shafts 4 respectively pass through the corresponding mounting holes so as to connect the scrapers 3 on two sides with the roller chain 2, thereby forming a scraper chain conveying structure. In the placement position of the conveyor shown in fig. 3, the direction indicated by the arrow in the drawing is the traveling direction of the roller chain 2.

Specifically, as shown in fig. 5, the scraper 3 includes a scraping portion 32 and a connecting portion 33, the top of the scraping portion 32 is arc-shaped and is provided with an arc-shaped recess 31, and the connecting portion 33 is provided with two mounting holes 5. As shown in fig. 3, the roller chain 2 includes an inner link plate 21 and an outer link plate 22, and both side scrapers 3 may be connected to the inner link plate 21 by pin shafts or may be connected to the outer link plate 22 by pin shafts. Taking the example shown in fig. 3, the connecting portions 33 of the scrapers 3 on both sides are attached to the inner link plate 21 and are connected by the pin shafts, so that the structural layout is more compact.

So set up, scraper blade 3 and roller chain 2 are only connected by two cross axles that are parallel to each other, if take place to block the material, under the driving action of roller chain 2, scraper blade 3 can not take place the beat, can take away the material constantly reliably, alleviates the material accumulation phenomenon of card material position department, prevents that the scraper chain from blocking completely.

In some embodiments of the present utility model, both ends of the connecting shaft 4 are welded to the both side mounting holes 5, so that it is possible to secure the both side scrapers 3 to the roller chains 2 more firmly. And at the welding position of the connection shaft 4 and the mounting hole 5, as shown in fig. 5, the mounting hole 5 is provided with a chamfer 51, and as shown in fig. 4, the connection shaft 4 is provided with an annular groove 41 corresponding to the chamfer 51. So set up, with connecting axle 4 assembly back, chamfer 51 just in time aligns with annular groove 41, forms an annular space, can fill the solder in this annular space like this when welding, can guarantee on the one hand that connecting axle 4 and scraper blade 3 reliably weld, on the other hand can avoid the solder to expose, prevent that the material from striking welding seam department from leading to the solder to break away from and influence welded structure's stability.

In some embodiments of the utility model, the transport device further comprises a drive sprocket 6 and a driven wheel assembly 7. As shown in fig. 1, a driving sprocket 6 and a driven wheel assembly 7 are respectively disposed at both ends of the roller chain 2 and are engaged with the roller chain 2, so that the driving sprocket 6 can drive the roller chain 2 and the driven wheel assembly 7 to rotate. As shown in fig. 8, the drive sprocket 6 may be a single row sprocket commonly used. As shown in fig. 1, driven wheel assembly 7 is secured in the middle of main blade 10. As shown in fig. 6, the driven wheel assembly 7 is provided with an annular boss 71, and the roller chain 2 is wound around the annular boss 71. So set up, driven wheel subassembly 7 adopts toothless structure, through setting up annular boss 71 and the cylinder of roller chain 2 to contact, smooth more in the transmission. When the roller chain 2 is tensioned, the roller chain 2 rolls along the annular boss 71, and the chain is prevented from being supported, so that the movement is smoother.

Further, in some embodiments of the present utility model, the distance between the two inner link plates 21 of the roller chain 2 is greater than the width of the annular boss 71. Specifically, as shown in fig. 3, the distance between the inner link plates 21 on both sides is W1. As shown in FIG. 6, the annular boss 71 has a width W2, and W1 > W2. So set up, in the transmission, both sides inner link plate 21 can overlap joint at the both ends of annular boss 71 steadily, guarantees roller chain 2 and the reliable contact of annular boss 71, improves transmission efficiency.

In some embodiments of the utility model, driven wheel assembly 7 includes a support shaft 72, a support sleeve 73, and a pair of end caps 74. Specifically, as shown in fig. 7, both ends of the support shaft 72 may be mounted on the main blade 10 through fixing seats 75. The support sleeve 73 may be made of wear-resistant materials, such as steel pipes, etc., to extend its service life. The support sleeve 73 is sleeved on the support shaft 72 and is rotatably connected with the support shaft 72, for example, by a bearing. An annular boss 71 is provided in the middle of the support sleeve 73, for example, the annular boss 71 may be integrally formed with the support sleeve 73. Thus, when the driving sprocket 6 drives the roller chain 2 to rotate, the roller chain 2 can drive the supporting sleeve 73 to rotate relative to the supporting shaft 72, so that the roller chain 2 continuously moves forwards, and materials are conveyed.

As shown in fig. 7, two end caps 74 are provided at both ends of the support sleeve 73, respectively. Specifically, the end cover 74 is sleeved on the support shaft 72 and abuts against the support sleeve 73, so that two ends of the support sleeve 73 can form a closed structure. The end cap 74 may be fixedly connected to the support sleeve 73 for rotation with the support sleeve 73. Of course, in other embodiments, the end cap 74 may be fixedly coupled to the support shaft 72 without synchronously rotating with the support sleeve 73. The end cap 74 is adapted to abut the squeegee 3 to provide a blocking effect to the squeegee 3. It should be noted that, as shown in fig. 6, the radial distance between the outer peripheral surface of the end cover 74 and the outer peripheral surface of the supporting sleeve 73 is H1, and as shown in fig. 2, the thickness of the scraper 3 is H2, where the size of H1 should be similar to the size of H2, so as to ensure that the end cover 74 can reliably block the scraper 3. Thus, even if the roller chain 2 is not tensioned timely, and the roller chain 2 is separated from the middle boss track, the end covers 74 at the two ends can limit the position of the scraping plate 3, so that the whole conveying device can still work normally.

In some embodiments of the present utility model, the transporting device further includes a driving assembly 8, where the driving assembly 8 is used to drive the driving sprocket 6 to rotate, so that when the driving assembly 8 drives the driving sprocket 6 to rotate, the driving sprocket 6 can drive the roller chain 2 and the driven wheel assembly 7 to rotate, so as to realize material transportation. The drive assembly 8 includes a drive member 81 and a drive shaft 82. The drive member 81 may be a conventional drive motor or the like and may be attached to the side panels of the chute 1 by a mounting 84. One end of the transmission shaft 82 is fixedly connected with the driving sprocket 6, and the other end is in transmission connection with the driving member 81.

Specifically, as shown in fig. 11, the side end of the drive sprocket 6 is provided with a connecting sleeve 83, which can be connected by welding, for example. The connecting sleeve 83 is made of wear-resistant material, and one end of the transmission shaft 82 extends into the connecting sleeve 83 and is connected through a key to realize synchronous rotation. For example, as shown in fig. 9, the connecting sleeve 83 is internally splined, and one end of the drive shaft 82 is connected to the sleeve spline. The other end of the drive shaft 82 passes through the mounting block 84 to be connected with the output end of the drive motor, and the drive shaft 82 is rotatably connected with the mounting block 84, for example, by a bearing connection. Thereby driving the transmission shaft 82 to rotate by the driving motor, and further driving the driving sprocket 6 to rotate.

Further, in some embodiments of the present utility model, as shown in fig. 10, the number of driving members 81 is two, and two driving members 81 are symmetrically disposed at both ends of the driving sprocket 6. And the number of the transmission shafts 82 is two, and the transmission shafts 82 are arranged in one-to-one correspondence with the driving pieces 81. So set up, drive sprocket 6 is driven simultaneously through both sides, makes its atress even, guarantees that the transmission is steady reliable more.

In some embodiments of the utility model, the conveyor further comprises a tensioning assembly 9 for adjusting the distance between the drive sprocket 6 and the driven wheel assembly 7, thereby facilitating adjustment of the tightness of the roller chain 2, ensuring reliable operation of the conveyor. Specifically, as shown in fig. 1, the tensioning assembly 9 is provided on a side plate of the chute 1, and the tensioning assembly 9 includes a tensioning drive 91 and a connection seat 92. The tensioning drive 91 may be a hydraulic cylinder, an air cylinder, an electric telescopic rod, etc., and the telescopic end thereof is fixedly connected with the connecting seat 92, for example, by a flange, a bolt connection, etc. The driving sprocket 6 is connected with a connecting seat 92, a rail arranged along the running direction of the roller chain 2 is arranged on the side plate of the chute 1, and the connecting seat 92 is in sliding connection with the rail and slides along the rail. In this way, the telescopic length of the tensioning drive 91 is controlled, so that the connecting seat 92 drives the driving sprocket 6 to slide, and the tightness degree of the roller chain 2 is adjusted. Specifically, as shown in fig. 10, the drive sprocket 6 is connected to the drive assembly 8, the drive assembly 8 is connected to the connection block 92, and the mounting block 84 is connected to the connection block 92 by bolts, for example, to connect the drive sprocket 6 to the connection block 92.

The development machine provided by the utility model is described below, and the development machine described below and the conveying device described above can be referred to correspondingly.

The embodiment of the utility model also provides a heading machine, which comprises the conveying device in each embodiment. So set up, the single chain mechanism in the scraper chain structure formation that comprises roller chain 2 and scraper blade 3 replaces traditional limit double chain conveying mechanism, changes the sliding friction of original round-link chain into rolling friction, has effectively improved transmission efficiency, reduces the card material risk. And the arc structural design of the scraper 3 is matched, so that the material forward motion is driven, the material carrying effect is better, and the material clamping phenomenon can be further reduced. The development of the beneficial effects is substantially similar to that of the above-mentioned transportation device, and thus will not be described in detail herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A transportation device, comprising:

a chute (1);

a roller chain (2) arranged in the chute (1);

at least a pair of scraper blade (3), a pair of scraper blade (3) set up respectively the both sides of roller chain (2), the top of scraper blade (3) is the arc, just the working face of scraper blade (3) is equipped with arc depressed part (31).

2. The transport device of claim 1, further comprising:

at least a pair of connecting axle (4), a pair of connecting axle (4) parallel arrangement, connecting axle (4) perpendicular to the direction of travel of roller chain (2), a pair of scraper blade (3) with roller chain (2) correspond and are equipped with supplies a pair of two mounting holes (5) that connecting axle (4) passed, a pair of scraper blade (3) are connected through a pair of connecting axle (4) with roller chain (2).

3. A transportation device according to claim 2, characterized in that the connecting shaft (4) is welded to the mounting hole (5), and that the mounting hole (5) is provided with a chamfer (51) at the welding location of the connecting shaft (4) and the mounting hole (5), the connecting shaft (4) being provided with an annular groove (41) corresponding to the chamfer (51).

4. A transportation apparatus according to any one of claims 1 to 3, further comprising:

the driving chain wheel (6) and the driven wheel assembly (7) are meshed with the roller chain (2), wherein the driven wheel assembly (7) is provided with an annular boss (71), and the roller chain (2) is wound on the annular boss (71).

5. A transportation device according to claim 4, wherein the driven wheel assembly (7) comprises:

a support shaft (72);

the support sleeve (73) is sleeved on the support shaft (72) and is rotationally connected with the support shaft (72), and the support sleeve (73) is provided with the annular boss (71);

and a pair of end caps (74) respectively arranged at two ends of the supporting sleeve (73), wherein the end caps (74) are used for abutting against the scraping plate (3).

6. The transport device of claim 4, further comprising:

the driving assembly (8) is used for driving the driving sprocket (6) to rotate, the driving assembly (8) comprises a driving piece (81) and a transmission shaft (82), one end of the transmission shaft (82) is fixedly connected with the driving sprocket (6), and the other end of the transmission shaft is in transmission connection with the driving piece (81).

7. The transport device according to claim 6, wherein the number of driving members (81) is two, the two driving members (81) being symmetrically arranged at both ends of the driving sprocket (6),

the number of the transmission shafts (82) is two, and the transmission shafts (82) and the driving pieces (81) are arranged in one-to-one correspondence.

8. A conveyor according to claim 4, characterized in that the distance between two inner link plates (21) of the roller chain (2) is greater than the width of the annular boss (71).

9. The transport device of claim 4, further comprising:

and the tensioning assembly (9) is arranged on the chute (1), and the tensioning assembly (9) is used for adjusting the distance between the driving sprocket (6) and the driven wheel assembly (7).

10. A heading machine comprising a transport device as claimed in any one of claims 1 to 9.