CN206447147U - Ribbon conveyer and Crushing ＆ Screening Machineries - Google Patents

Abstract

The utility model relates to a belt conveyor and crushing and screening equipment, wherein the belt conveyor includes a conveyor belt and a frame for installing the conveyor belt, and the frame includes at least two sub-conveyors that are sequentially telescopically connected. frame, the bottom of at least one sub-frame in at least two sub-frames is fixed with a first tension roller, and the next sub-frame that is telescopically connected with at least one sub-frame in the extending direction of the frame The bottom of the frame is fixed with a second tension roller, and the conveyor belt passes around the first tension roller and the second tension roller in turn. During the expansion and contraction process of the next sub-frame relative to at least one sub-frame, the first The tension roller and the second tension roller can correspondingly produce relative motion to jointly tension the conveyor belt. During the stretching process of the belt conveyor, the first tension roller and the second tension roller that the conveyor belt bypasses can produce relative motion accordingly, thus realizing the automatic tensioning of the conveyor belt and ensuring the reliable conveying of the conveyor belt during conveying sex.

Description

Belt conveyors and crushing and screening equipment

technical field

The utility model relates to the technical field of engineering machinery, in particular to a belt conveyor and crushing and screening equipment.

Background technique

The mobile crushing and screening station is mainly composed of crushing host, screening machine, receiving hopper, conveyor, frame, feeder, chassis and other components. When the equipment is working, the crushing host crushes the incoming materials, the screening machine screens the crushed materials, and the belt conveyor transports the materials to the crushing material delivery point. Belt conveyor is a kind of machinery that is driven by friction to transport materials in a continuous manner. It is mainly composed of frame, conveyor belt, idler roller, roller, tensioning device, transmission device, etc. In actual production, after the crushing and screening station works for a certain period of time, the excessive accumulation of crushed materials will affect the normal operation of the crusher. At this time, the crushing and screening station needs to be moved to replace the storage point of the crushed materials. If the conveyor belt of the mobile crushing and screening plant is shorter, its moving frequency will increase, which reduces production efficiency. If the conveyor belt is longer, although this can reduce the frequency of movement and improve production efficiency, it will cause inconvenience during the transportation of the mobile crushing and screening plant. The design requirements of the conveyor belt: it is not only convenient for transportation, but also ensure that the conveyor belt has a long conveying distance when it is working.

The length adjustment of the belt conveyor in the existing mobile crushing station usually adopts the folding method. Figure 1 and Figure 2 respectively show the structure of the belt conveyor folded up and folded down. Under these two folding methods, the conveyor belt of the belt conveyor is loose after folding, and there is no good conveyor belt tightening mechanism at present, which causes the conveyor belt to hang loose after the belt conveyor is folded, which will damage the conveyor belt. It will be a certain inconvenience. And when the folding angle is small, it may cause the conveyor belt to be subjected to a large extrusion force, which will cause certain damage to the conveyor belt and reduce the service life of the conveyor belt. The belt conveyor cannot work normally after being folded, and the conveying distance of the conveyor belt cannot be adjusted after it is fully unfolded, which is not conducive to the flexible adjustment of the material delivery point and cannot adapt to diverse work needs.

Utility model content

In order to overcome the above technical defects, the technical problem solved by the utility model is to provide a belt conveyor and crushing and screening equipment, which can not only facilitate transportation, but also ensure that the conveyor belt has a flexible conveying distance and conveying reliability during conveying. The advantages.

In order to solve the above technical problems, the utility model provides a belt conveyor, which includes a conveyor belt and a frame for installing the conveyor belt. The bottom of at least one sub-frame in the sub-frame is fixed with a first tension roller, and the bottom of the next sub-frame that is telescopically connected with at least one sub-frame in the extending direction of the frame is fixed. There is a second tension roller, and the conveyor belt passes around the first tension roller and the second tension roller in turn. When the next sub-frame stretches relative to at least one sub-frame, the first tension roller and the second tension roller The tensioning rollers can produce relative movement accordingly to jointly tension the conveyor belt.

Further, the winding direction of the conveyor belt around the first tension roller and the second tension roller in turn is opposite.

Further, the first tension roller and the second tension roller are arranged in a staggered direction perpendicular to the telescopic direction of at least two sub-frames, so that the second tension roller can move from one side of the first tension roller to The other side.

Further, the conveyor belt passes around the outer side of the tension roller with a higher protruding height relative to the frame among the first tension roller and the second tension roller, and passes around the first tension roller and the second tension roller The inner side of the tension roller with a lower protrusion height relative to the frame.

Further, the protruding height of the first tension roller relative to the frame is greater than the protruding height of the second tension roller relative to the frame.

Further, the first tension roller is arranged at the tail of at least one subframe, and the second tension roller is arranged at the root of the next subframe.

Further, the at least two sub-frames include at least three sub-frames, the protruding height of each first tension roller relative to the frame decreases successively in the protruding direction of the frame, and each second tension roller relative to the frame The protruding height of the frame decreases successively in the protruding direction of the frame.

Further, the upper part of each sub-frame in at least two sub-frames is provided with sliding rollers with the same protruding height relative to the frame.

Further, at least two sub-racks are sequentially telescopically connected through sliding guide rails.

Further, a telescopic oil cylinder is also included for adjusting the relative telescopic lengths of at least two sub-frames.

Further, the conveyor belt is an endless conveyor belt that is closed as a whole, and the endless conveyor belt goes around from above the frame and around the first tension roller and the second tension roller from below the frame.

The utility model also provides a crushing and screening equipment, which includes the above-mentioned belt conveyor.

Thus, based on the above-mentioned technical scheme, the belt conveyor of the utility model adopts a segmented and telescopic frame composed of at least two sub-frames to realize the adjustment of the conveying length of the belt conveyor, and the belt conveyor transports materials When the belt conveyor can be freely expanded and contracted to meet different conveying length requirements; after the conveying is completed, the belt conveyor can be completely retracted to make the structure compact, occupy a small space, and facilitate transportation. During the stretching process of the belt conveyor, the first tension roller and the second tension roller that the conveyor belt bypasses can produce relative motion accordingly, thereby realizing the automatic tensioning of the conveyor belt and ensuring that the conveyor belt is conveyed reliability. The crushing and screening equipment provided by the utility model also correspondingly has the above-mentioned beneficial technical effects.

Description of drawings

The drawings described here are used to provide a further understanding of the utility model and constitute a part of the application. The schematic embodiments of the utility model and their descriptions are only used to explain the utility model and do not constitute an improper limitation of the utility model . In the attached picture:

Fig. 1 and Fig. 2 are respectively the structural representation of existing belt conveyor folding up and down;

Fig. 3 is the structural schematic diagram of the belt conveyor embodiment of the present invention in the extended state;

Fig. 4 is the structural schematic diagram of the belt conveyor embodiment of the present invention under the shrinkage state;

Fig. 5 is the overall structure schematic diagram of the utility model belt conveyor embodiment;

Fig. 6 is a schematic diagram of a disassembled structure of an embodiment of the belt conveyor of the present invention.

detailed description

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

The specific implementation of the utility model is to facilitate further description of the concept of the utility model, the technical problems to be solved, the technical features constituting the technical solution and the technical effects brought about. It should be noted that the description of these embodiments does not constitute a limitation of the present utility model. In addition, the technical features involved in the following embodiments of the present invention may be combined with each other as long as they do not constitute a conflict with each other.

In a schematic embodiment of the belt conveyor of the present invention, as shown in FIGS. 3 to 6, the belt conveyor includes a roller 1, a conveyor belt 12 and a frame for installing the conveyor belt 12. The frame includes At least two sub-frames that are telescopically connected in turn, the bottom of at least one sub-frame in the at least two sub-frames is provided with a first tension roller, which is aligned with at least one sub-frame in the extending direction of the frame The bottom of the frame telescopically connected to the next section frame is provided with a second tension roller, and the conveyor belt 12 walks around the first tension roller and the second tension roller in turn, and at least one section of the next section frame During the stretching process of the frame, the first tensioning roller and the second tensioning roller can generate relative motion correspondingly so as to jointly tension the conveyor belt 12 .

In this exemplary embodiment, the belt conveyor adopts a segmented telescopic frame composed of at least two sub-frames to realize the adjustment of the conveying length of the belt conveyor. When the belt conveyor transports materials, It can be freely expanded and contracted to meet different conveying length requirements; after the conveying is completed, the belt conveyor can be completely retracted to make the structure compact, occupy a small space, and facilitate transportation. In the stretching process of the belt conveyor, the next section of the frame is stretched relative to at least one section of the frame, and the first tension roller and the second tension roller that the conveyor belt 12 bypasses can generate relative motion accordingly. The stretching of the conveyor belt is adjusted in real time through the relative movement between the first tension roller and the second tension roller fixed on each node frame, and the conveyor belt is always kept tensioned, realizing the automatic tensioning of the conveyor belt 12. Tight, guarantee the conveying reliability of conveyer belt 12 when conveying.

As shown in Figures 3 to 6, taking at least two sub-racks as three sub-racks as an example, that is, at least two sub-racks include the first sub-rack 9 and the second sub-rack that are sequentially scalable and connected. Frame 5 and the third sub-rack 2, the first sub-rack 9 is fixed relative to the ground, the second sub-rack 5 can be telescopic relative to the first sub-rack 9, the third sub-rack 2 Can be telescopic with respect to the second sub-rack 5, in one embodiment, at least one sub-rack can be a sub-rack, for example at least one sub-rack is the first sub-rack 9, at this time The corresponding next joint sub-frame is the second joint sub-frame 5, the first tension roller is a flat roller 10, and the second tension roller is a flat roller 8; for another example, at least one joint sub-frame is the second joint Sub-frame 5, now the corresponding next sub-frame is the third sub-frame 2, the first tension roller is flat roller 6, and the second tension roller is flat roller 4; in another embodiment , at least one sub-rack can be two sub-racks, for example, at least one sub-rack includes the first sub-rack 9 and the second sub-rack 5, at this time the corresponding next sub-rack includes The second sub-frame 5 and the third sub-frame 2, as shown in Fig. 3 and Fig. 4, when the second sub-frame 5 stretches relative to the first sub-frame 9, the flat roller 8 and the flat roller 10 generates relative movement accordingly to tension the conveyor belt 12, and when the third sub-frame 2 is stretched relative to the second sub-frame 5, the flat rollers 4 and 6 correspondingly generate relative motion to tension the conveyor belt 12 .

As shown in Figures 3 and 4, the conveyor belt 12 is a closed endless conveyor belt as a whole, and the endless conveyor belt goes around from the top of the frame and goes around the flat roller 4, flat roller 6, and flat roller 8 from the bottom of the frame And the flat roller 10, when the frame stretches out, due to the increase of the conveying length of the frame, the corresponding relative movement occurs between the flat roller 4 and the flat roller 6, and the corresponding relative movement occurs between the flat roller 8 and the flat roller 10 so that The length of the conveyor belt 12 below the frame becomes shorter, so that the length of the conveyor belt 12 above the frame becomes longer; during the retraction process of the frame, the flat roller 4 and the flat roller 6 are shortened due to the shortened conveying length of the frame. There is a corresponding relative movement between the flat rollers 8 and 10, so that the length of the conveyor belt 12 below the frame becomes longer, which can absorb the surplus of the shortened length of the conveyor belt 12 above the frame. The length can realize real-time tensioning of the conveyor belt and ensure the stable performance of conveying.

In a specific or preferred embodiment, the conveyor belt 12 goes around the flat roller 8 and the flat roller 10 successively in the opposite direction, and the conveyor belt 12 goes around the flat roller 4 and the flat roller 6 in the opposite direction, which can make the conveyor belt 12 detours around flat roller 4 and flat roller 6 and flat roller 8 and flat roller 10 to ensure tension stability.

As an improvement on one aspect of the above-mentioned embodiment, as shown in Figures 3 to 6, the flat roller 4 and the flat roller 6 have Displaced arrangement, so that the flat roller 4 can move from one side of the flat roller 6 to the other side, so that the flat rollers 4 and 6 can exchange positions in the telescopic direction without interference, and the conveyor belt 12 can be detoured Go around the flat roller 4 and the flat roller 6, so that the conveyor belt 12 overlaps in the telescopic direction of the third knot frame 2 and the second knot frame 5 to fully tension the conveyor belt 12; the flat roller 8 and the flat roller 10 In the vertical direction of the telescopic direction of the second sub-frame 5 and the first sub-frame 9, it is staggered, so that the flat roller 8 can move from one side of the flat roller 10 to the other side, so that the flat roller 10 can be moved to the other side. The rollers 8 and 10 exchange positions in the telescopic direction without interference, and the conveyor belt 12 can bypass the flat roller 8 and the flat roller 10 in a detour, so that the conveyor belt 12 is in the second section of the frame 5 and the first section. The telescopic direction of the sub-frames 9 overlaps to fully tension the conveyor belt 12 .

In the above embodiment, preferably, the conveyor belt 12 goes around the outside of the first tension roller and the second tension roller with a higher protrusion height relative to the frame, and passes around the first tension roller. Roller and the inner side of the tension roller with lower protruding height relative to the frame in the second tension roller can ensure that the conveyor belt 12 overlaps to fully tension the conveyor belt 12 in the stretching direction of the frame. Taking the embodiment shown in Fig. 3 and Fig. 4 as an example, the protruding height of the flat roller 4 relative to the frame is smaller than the protruding height of the flat roller 6 relative to the frame, and the conveyor belt 12 passes around the outside of the flat roller 6 and wraps around Cross the inner side of flat roller 4; Further, as shown in Fig. 3 and Fig. 4, the protruding height of the flat roll 10 relative to the frame is greater than the protruding height of the flat roll 8 relative to the frame, and the protruding height of the flat roll 6 relative to the frame is greater than that of the flat roll 4 Protrusion height relative to rack. This design makes the belt conveyor take up less space under the tail, which is convenient to connect with the subsequent material receiving device, which is convenient and reliable.

As an improvement on another aspect of the above embodiment, the first tension roller is arranged at the tail of at least one sub-frame, and the second tension roller is arranged at the root of the next sub-frame, which can increase the size of the first sheet. The distance between the tension roller and the second tension roller in the stretching direction of the frame ensures that the conveyor belt 12 overlaps substantially in the stretching direction of the frame, thereby further ensuring tensioning reliability. As shown in Fig. 3 and Fig. 4, the flat roller 10 is arranged at the afterbody of the first subframe 9, and the flat roller 8 is arranged at the root of the second subframe 5; the flat roller 6 is arranged at the afterbody of the second subframe 5 , the flat roller 4 is arranged at the root of the third sub-frame 2 .

For the embodiment in which there are three or more sub-frames, preferably, the protruding height of each first tension roller relative to the frame decreases successively in the protruding direction of the frame, and each second tension roller is opposite to each other. The protruding height of the frame decreases successively in the protruding direction of the frame. As shown in Fig. 3 and Fig. 4, the protruding height of the flat roller 10 relative to the frame is greater than the protruding height of the flat roller 6 relative to the frame, and the protruding height of the flat roller 6 relative to the frame is greater than that of the flat roller 4 relative to the frame. The protruding height of the frame can ensure that the conveyor belt 12 will not interfere under the frame during the expansion and contraction process of each joint frame, so as to ensure the stability of conveying.

As another improvement to the above-mentioned embodiment, the upper part of each sub-frame in at least two sub-frames is provided with sliding rollers with the same protruding height relative to the frame, as shown in Figures 3 to 6 As shown, the upper parts of the first sub-frame 9, the second sub-frame 5 and the third sub-frame 2 are respectively provided with sliding idlers 11, sliding idlers 7 and sliding idlers 3 with the same height, Corresponding sliding rollers are installed on each sub-frame to provide sufficient support for the belt conveyor to ensure that the conveyor belt 12 of the loading section on the top of the frame is on the same working plane.

As for how to realize sequentially scalable connections between at least two sub-racks, in a preferred embodiment, as shown in Figure 5 and Figure 6, between the first sub-rack 9 and the second sub-rack 5 The telescopic connection is realized through the sliding guide rail, and the telescopic connection between the second sub-rack 5 and the third sub-rack 2 is realized through the sliding guide rail. The sliding guide rail is easy to process and has high sliding connection stability, and is convenient for each The disassembly and assembly of the knot rack has high real-time performance.

As for how to realize the adjustable telescopic length of each sub-frame, in a preferred embodiment, the belt conveyor also includes telescopic oil cylinders, which are used to adjust the relative telescopic lengths of at least two sub-frames. Higher, can be installed in each sub-rack, optimize the structural design and reduce the occupied space. There can be one telescopic oil cylinder, which has multi-section piston rods to control the expansion and contraction of each sub-frame sequentially, or it can be a plurality of corresponding ones to control the expansion and contraction of each sub-frame respectively.

Thus, the utility model belt conveyor has the following intentional technical effects:

1. The length of the belt conveyor adopts segmental telescopic adjustment, and multi-section telescopic configuration can be carried out;

2. The conveyor belt is adjusted in real time through the relative movement between the tensioners on each joint frame, and the conveyor belt is always kept in tension. There is no interference between each section of the conveyor belt, and the belt conveyor can always work normally;

3. The sliding guide rail is used for connection, and the telescopic length can be freely controlled to meet different length requirements and achieve a large telescopic ratio. After fully shrinking, the structure is compact and takes up little space;

4. Install sliding rollers on each telescopic frame to meet the support requirements of the belt conveyor and ensure that the conveyor belt in the loading section is on the same working plane;

5. The telescopic distance between each stage can be adjusted by hydraulic pressure, without manual adjustment.

The utility model also provides a crushing and screening equipment, which includes the above-mentioned belt conveyor. Since the belt conveyor of the utility model has the advantages of being convenient for transportation and ensuring that the conveyor belt has a flexible conveying distance and conveying reliability during conveying, correspondingly, the crushing and screening equipment of the present utility model also has the above-mentioned beneficial technology effect, which will not be repeated here.

The above combined embodiments are described in detail for the implementation of the utility model, but the utility model is not limited to the described implementation. For example, sub-racks can be set to 4 or more. For those skilled in the art, without departing from the principle and spirit of the utility model, various changes, modifications, equivalent replacements and modifications to these embodiments still fall within the protection scope of the utility model Inside.

Claims (12)

1. a kind of ribbon conveyer, it is characterised in that the frame including conveyer belt (12) and for installing the conveyer belt (12), The frame includes at least knot machine at least two knot frames of scalable connection successively, at least two knot frames The bottom of frame is installed with the first idler roller, stretches what is be connected with an at least knot frame on the stretching direction of the frame The bottom of next knot frame is installed with the second idler roller, and the conveyer belt (12) bypasses first idler roller and described successively Second idler roller, in next knot frame relative in an at least knot frame telescopic process, described first is tensioned Roller and second idler roller can correspondingly produce relative motion to be tensioned the conveyer belt (12) jointly.

2. ribbon conveyer according to claim 1, it is characterised in that the conveyer belt (12) bypasses described first successively Idler roller and second idler roller around to opposite.

3. ribbon conveyer according to claim 1 or 2, it is characterised in that first idler roller and described second Tight roller is arranged at least vertical direction of two knot frame telescopic direction in dislocation, so that second idler roller can Opposite side is moved to from the side of first idler roller.

4. ribbon conveyer according to claim 3, it is characterised in that the conveyer belt (12) bypasses first tensioning The outside of the idler roller higher relative to the protrusion height of the frame in roller and second idler roller, and bypass described first The inner side of the idler roller relatively low relative to the protrusion height of the frame in idler roller and second idler roller.

5. ribbon conveyer according to claim 4, it is characterised in that first idler roller is relative to the frame Protrusion height is more than protrusion height of second idler roller relative to the frame.

6. ribbon conveyer according to claim 1, it is characterised in that first idler roller is arranged on described at least one The afterbody of knot frame, second idler roller is arranged on the root of next knot frame.

7. ribbon conveyer according to claim 1, it is characterised in that at least two knot frames include at least three sections Sub-frame, each described first idler roller is passed successively relative to the protrusion height of the frame on the stretching direction of the frame Subtract, each described second idler roller is passed successively relative to the protrusion height of the frame on the stretching direction in the frame Subtract.

8. ribbon conveyer according to claim 1, it is characterised in that every knot machine at least two knot frames The top of frame is equipped with the protrusion height identical slip carrying roller relative to the frame.

9. ribbon conveyer according to claim 1, it is characterised in that by sliding between at least two knot frames Guide rail realizes scalable connection successively.

10. ribbon conveyer according to claim 1, it is characterised in that also including telescopic oil cylinder, for adjust it is described to The relative telescopic length of few two knot frames.

11. ribbon conveyer according to claim 1, it is characterised in that the conveyer belt (12) closes on the whole Cycloconveyor belt, the cycloconveyor belt bypasses above the frame and bypasses described first below the frame Tight roller and second idler roller.

12. a kind of Crushing ＆ Screening Machineries, it is characterised in that including the ribbon conveyer described in any one of claim 1~11.