Telescopic scraper conveyer chute

Abstract

The utility model relates to the technical field of scraper conveyors, in particular to a telescopic scraper conveyor chute which comprises a front chute and a rear chute, one end of the front chute is sleeved with the rear chute in a sliding mode, a telescopic assembly is arranged on the inner side of a side plate of the rear chute, and the telescopic assembly is connected with the side plate of the front chute. A chain tensioning mechanism is arranged at the end, away from the front chute, of the rear chute and comprises a tensioning roller and two chain tensioning assemblies, and the two chain tensioning assemblies are connected with the two ends of the tensioning roller respectively. Due to the adoption of the split type structure, the unloading point for transporting materials can be effectively adjusted, and the material unloading point of the chute of the scraper conveyer can be changed, so that the materials can be uninterruptedly transported, the construction continuity is ensured, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper conveyors, and particularly relates to a telescopic scraper conveyor chute. Background Art

[0002] A scraper conveyor is a mechanical device for transporting materials. It mainly relies on the scrapers fixed on the traction chain to scrape and transport bulk materials in an open chute. The scraper conveyor consists of an open chute, a traction chain, scrapers, a head drive sprocket, a tail tensioning sprocket, etc., and can transport materials in different directions.

[0003] At present, scraper conveyors are commonly used in tunnel construction. The scraper conveyor chute is fixed on the roadheader, and is used to transport the stones cut by the cutting part of the roadheader. However, the scraper conveyor chute is usually of an integral structure. In view of the different requirements for the distance of the discharge point of the transported materials in actual tunnel construction, in order to ensure the synchronous progress of excavation and material transportation, it is usually achieved by adding or removing a second conveyor behind the first conveyor chute to change the distance of the discharge point of the transported materials. However, for the adjustment of the discharge point distance within a relatively small range, the addition of a second conveyor cannot meet the discharge point requirements, and the addition of a second conveyor will exceed the distance range required by the discharge point. The scraper conveyor chute has the disadvantages of being unable to telescopic and the discharge point of the materials cannot be adjusted. Summary of the Invention

[0004] In order to solve the problems that the scraper conveyor chute in the prior art cannot be telescopic and the discharge point of the materials cannot be adjusted, the utility model provides a telescopic scraper conveyor chute. The scraper conveyor chute adopts a split structure, which can effectively adjust the discharge point of the transported materials, change the discharge point of the materials of the scraper conveyor chute, so as to continuously transport materials, ensure the continuity of construction and improve the construction efficiency.

[0005] In order to achieve the above purpose, the technical solution of the utility model is: a telescopic scraper conveyor chute, which includes a front chute and a rear chute. One end of the front chute is slidably sleeved in the rear chute, and a telescopic component is arranged on the inner side of the side plate of the rear chute. The telescopic component is connected with the side plate of the front chute. The scraper conveyor chute is composed of the front chute and the rear chute. The front chute is slidably connected with the rear chute, and the telescopic component can drive the front chute to perform telescopic movement, so as to achieve the effect of changing the discharge point of the materials of the scraper conveyor chute.

[0006] One end of the rear chute away from the front chute is provided with a chain tensioning mechanism, which includes a tensioning roller and two chain tensioning components. The two chain tensioning components are respectively connected to both ends of the tensioning roller. The chain tensioning mechanism is used to adjust the tension degree of the scraper chain in the scraper conveyor chute when the front chute makes a telescopic movement, so as to ensure that the scraper conveyor can still transport materials after changing the material discharge point.

[0007] Further, one end of both side plates of the front chute close to the rear chute is in a triangular structure, and a first high magnetic attraction plate is inlaid on the upper surface of one end of the lower bottom plate of the front chute close to the rear chute; one end of the upper bottom plate of the front chute close to the rear chute is connected with a front chute tongue.

[0008] Further, one end of both side plates of the rear chute close to the front chute is also in a triangular structure. Parallel - quadrilateral - shaped chutes are opened on the inner sides of both side plates of the rear chute, and one end of the side plate of the front chute close to the rear chute is slidably arranged in the chutes. The side plate of the front chute is slidably connected to the rear chute through the chutes. The parallel - quadrilateral - shaped chutes facilitate the telescopic movement of the front chute, and at the same time, the chutes also play a role in limiting and guiding the front chute.

[0009] Further, the end of the lower bottom plate of the rear chute is connected with a rear chute tongue that cooperates with the first high magnetic attraction plate, and a second high magnetic attraction plate that cooperates with the front chute tongue is inlaid on the lower surface of the upper bottom plate of the rear chute.

[0010] Further, the telescopic component is a chute oil cylinder. The tail end of the chute oil cylinder is connected to the side plate of the rear chute, and the piston rod is connected to the side plate of the front chute. The telescopic movement of the piston rod of the chute oil cylinder realizes the telescopic movement of the front chute, which can change the overall length of the scraper conveyor chute and achieve the effect of changing the material discharge point of the scraper conveyor chute.

[0011] Further, roller shafts are connected to both ends of the tensioning roller; the chain tensioning components are arranged on the outer sides of the side plates of the rear chute. The chain tensioning component includes a tensioning oil cylinder, a first connecting rod, a second connecting rod, a third connecting rod, and a fourth connecting rod. The tensioning oil cylinder and the first connecting rod are both arranged on the outer sides of the side plates of the rear chute. Both ends of the second connecting rod are respectively rotatably connected to the first connecting rod and the piston rod of the tensioning oil cylinder. Both ends of the third connecting rod are respectively rotatably connected to the piston rod of the tensioning oil cylinder and the roller shaft. Both ends of the fourth connecting rod are respectively rotatably connected to the roller shaft and the first connecting rod. The positions of the tensioning rollers can be changed through the two chain tensioning components to adjust the tension of the scraper chain in the scraper conveyor chute by using the tensioning rollers, so that the length of the scraper chain in the scraper conveyor chute matches the length of the scraper conveyor chute after telescoping.

[0012] Furthermore, transition sprockets are rotatably arranged on the inner sides of both side plates of the rear chute. The transition sprockets play a role in transitioning the scraper chain, facilitating the adjustment of the tension of the scraper chain by the chain tensioning mechanism.

[0013] By the above technical solutions, the beneficial effects of the present utility model are as follows:

[0014] The chute of the scraper conveyor of the present utility model is composed of a front chute and a rear chute with a split structure. The front chute and the rear chute are connected in a sliding form, which can change the overall length of the chute of the scraper conveyor, adjust the discharge point of the transported material, change the material discharge point of the chute of the scraper conveyor, and can continuously transport the material, ensuring the continuity of construction, improving construction efficiency, and overcoming the defects of time-consuming and labor-consuming caused by the need to frequently disassemble and assemble the second conveyor due to the change of the discharge point.

[0015] In the present utility model, the telescopic movement of the piston rod of the chute oil cylinder drives the front chute to make a telescopic movement, changing the overall length of the chute of the scraper conveyor, thereby achieving the effect of changing the material discharge point of the chute of the scraper conveyor. When the front chute makes a telescopic movement, the side plate of the front chute slides in the chute with a parallelogram structure, playing a role in limiting and guiding the front chute.

[0016] When the front chute of the present utility model makes an extending movement, under the action of the high magnetic attraction plate one, the tongue of the rear chute can fill the distance gap generated by the extension of the lower bottom plate of the front chute, and under the action of the high magnetic attraction plate two, the tongue of the front chute can fill the distance gap generated by the extension of the upper bottom plate of the front chute, achieving the effect of preventing materials from falling downward between the front chute and the rear chute.

[0017] The two chain tensioning components of the chain tensioning mechanism of the present utility model can change the position of the tensioning roller to adjust the tension degree of the scraper chain in the chute of the scraper conveyor when the front chute makes a telescopic movement, so that the length of the scraper chain in the chute of the scraper conveyor matches the length of the telescoped chute of the scraper conveyor, ensuring that the scraper conveyor can continuously transport materials. Description of the Drawings

[0018] Figure 1 is a schematic structural view of a telescopic chute of a scraper conveyor of the present utility model Figure 1 ;

[0019] Figure 2 is a schematic structural view of a telescopic chute of a scraper conveyor of the present utility model Figure 2 .

[0020] The reference numerals in the drawings are as follows: 1 is the front chute, 2 is the first high magnetic attraction plate, 3 is the front chute tongue, 4 is the rear chute, 5 is the second high magnetic attraction plate, 6 is the rear chute tongue, 7 is the chute oil cylinder, 8 is the transition sprocket, 9 is the tensioning oil cylinder, 10 is the first connecting rod, 11 is the second connecting rod, 12 is the third connecting rod, 13 is the fourth connecting rod, and 14 is the tensioning roller. Specific embodiments

[0021] The present utility model will be further described below in conjunction with the drawings and specific embodiments:

[0022] As Figures 1 to 2 shown, a telescopic scraper conveyor chute includes a front chute 1 and a rear chute 4. One end of the front chute 1 is slidably sleeved inside the rear chute 4, and the side plate of the front chute 1 is slidably connected to the side plate of the rear chute 4. An expansion and contraction assembly is arranged inside the side plate of the rear chute 4, and the expansion and contraction assembly is connected to the side plate of the front chute 1. In this embodiment, the side plate of the front chute 1 is located inside the side plate of the rear chute 4, and the front chute 1 and the rear chute 4 are connected in a sliding manner, so that the expansion and contraction assembly can drive the front chute 1 to perform expansion and contraction movements, change the overall length of the scraper conveyor chute, and realize the adjustment of the material discharging point of the scraper conveyor chute. The number of expansion and contraction assemblies on the rear chute 4 is two.

[0023] A chain tensioning mechanism is arranged at one end of the rear chute 4 away from the front chute 1. The chain tensioning mechanism includes a tensioning roller 14 and two chain tensioning assemblies. The two chain tensioning assemblies are respectively connected to both ends of the tensioning roller 14, and the chain tensioning assemblies are arranged outside the side plate of the rear chute 4. In this embodiment, the scraper chain inside the scraper conveyor chute is sleeved on the tensioning roller 14. When the front chute 1 performs expansion and contraction movements, the two chain tensioning assemblies adjust the position of the tensioning roller 14, and the tension of the scraper chain is adjusted by changing the position of the tensioning roller 14.

[0024] Both ends of the two side plates of the front chute 1 close to the rear chute 4 are in a triangular structure. A first high magnetic attraction plate 2 is inlaid on the upper surface of the end of the lower bottom plate of the front chute 1 close to the rear chute 4; a front chute tongue 3 is connected to the end of the upper bottom plate of the front chute 1 close to the rear chute 4. In this embodiment, the rear end of the side plate of the front chute 1 extends into the interior of the rear chute 4 and is slidably connected to the side plate of the rear chute 4.

[0025] Both ends of the two side plates of the rear chute 4 close to the front chute 1 are also triangular structures. Parallel - quadrilateral - shaped chutes are provided on the inner sides of the two side plates of the rear chute 4, and the end of the side plate of the front chute 1 close to the rear chute 4 is slidably arranged in the chute. In this embodiment, during the process of the telescopic assembly driving the front chute 1 to perform telescopic movement, the side plate of the front chute 1 slides in the chute, so that the front chute 1 can perform front - and - back telescopic movement through the chute. At the same time, the chute also plays a role in limiting and guiding the movement of the front chute 1.

[0026] A rear - chute tongue 6 that cooperates with the first high - magnetic - attraction plate 2 is connected to the end of the lower bottom plate of the rear chute 4, and a second high - magnetic - attraction plate 5 that cooperates with the front - chute tongue 3 is inlaid on the lower surface of the upper bottom plate of the rear chute 4. In this embodiment, when the chute of the scraper conveyor needs to be lengthened and the front chute 1 needs to perform an extending movement, the rear - chute tongue 6 will slide relatively backward along the surface of the first high - magnetic - attraction plate 2 under the strong magnetic attraction of the first high - magnetic - attraction plate 2 on the upper surface of the lower bottom plate of the front chute 1 to fill the distance gap generated by the extension of the lower bottom plate of the front chute 1; at the same time, the front - chute tongue 3 will slide forward along the surface of the second high - magnetic - attraction plate 5 under the strong magnetic attraction of the second high - magnetic - attraction plate 5 on the lower surface of the upper bottom plate of the rear chute 4 to fill the distance gap generated by the extension of the upper bottom plate of the front chute 1.

[0027] The telescopic assembly is a chute oil cylinder 7. The tail end of the chute oil cylinder 7 is connected to the side plate of the rear chute 4, and the piston rod is connected to the side plate of the front chute 1. In this embodiment, when the piston rod of the chute oil cylinder 7 extends or retracts, it drives the front chute 1 to perform an extending or retracting movement, realizes the lengthening or shortening of the chute of the scraper conveyor, changes the material discharge point of the chute of the scraper conveyor, and achieves the effect of adjusting the material discharge point of the chute of the scraper conveyor.

[0028] Both ends of the tensioning roller 14 are connected with roller shafts; the chain tensioning assembly is arranged on the outer side of the side plate of the rear chute 4. The chain tensioning assembly includes a tensioning oil cylinder 9, a first connecting rod 10, a second connecting rod 11, a third connecting rod 12 and a fourth connecting rod 13. The tensioning oil cylinder 9 and the first connecting rod 10 are both arranged on the outer side of the side plate of the rear chute 4. Both ends of the second connecting rod 11 are rotatably connected with the first connecting rod 10 and the piston rod of the tensioning oil cylinder 9 respectively. Both ends of the third connecting rod 12 are rotatably connected with the piston rod of the tensioning oil cylinder 9 and the roller shaft respectively. Both ends of the fourth connecting rod 13 are rotatably connected with the roller shaft and the first connecting rod 10 respectively. In this embodiment, the second connecting rod 11 is connected with the first connecting rod 10 and the piston rod of the tensioning oil cylinder 9 through a pin shaft. The third connecting rod 12 is connected with the piston rod of the tensioning oil cylinder 9 through a pin shaft. The fourth connecting rod 13 is connected with the first connecting rod 10 through a pin shaft. When the front chute 1 makes a telescopic movement, the tensioning oil cylinder 9 is opened. The piston rod of the tensioning oil cylinder 9 extends or retracts, driving the second connecting rod 11 and the third connecting rod 12 to move. The second connecting rod 11 and the third connecting rod 12 drive the roller shaft to move, so as to achieve the purpose of adjusting the position of the tensioning roller 14, and further achieve the effect of adjusting the tension of the scraper chain. When the front chute 1 makes an extending movement, the piston rod of the tensioning oil cylinder 9 retracts at this time. When the front chute 1 and the rear chute 4 are in the initial state, the piston rod of the tensioning oil cylinder 9 is in the extended state.

[0029] Transition sprockets 8 are rotatably arranged on the inner sides of the two side plates of the rear chute 4. In this embodiment, the transition sprocket 8 includes a sprocket shaft fixedly installed on the inner side of the side plate of the rear chute 4. The transition sprocket 8 is rotatably sleeved on the sprocket shaft. The scraper chain in the scraper conveyor chute bypasses the transition sprocket 8, and the transition sprocket 8 plays a role in transitioning the chain, so that the chain tensioning mechanism can adjust the tension of the transition sprocket 8.

[0030] The working principle of the present utility model is as follows: When adjusting the material discharge point of the scraper conveyor chute and the scraper conveyor chute needs to be lengthened, the front chute 1 needs to slide forward and extend. Open the chute oil cylinder 7, and the piston rod of the chute oil cylinder 7 extends, and pushes the front chute 1 to move forward. While the front chute 1 is moving forward, the rear chute tongue 6 will slide backward relative to the surface of the high magnetic attraction plate 1 on the upper surface of the lower bottom plate of the front chute 1 under the strong magnetic attraction of the high magnetic attraction plate 1, filling the distance gap generated by the extension of the lower bottom plate of the front chute 1; At the same time, the front chute tongue 3 will slide forward along the surface of the high magnetic attraction plate 2 under the strong magnetic attraction of the high magnetic attraction plate 2 on the lower surface of the upper bottom plate of the rear chute 4, filling the distance gap generated by the extension of the upper bottom plate of the front chute 1; At the same time, during this process, since the length of the scraper conveyor chute is increased, the length of the scraper chain needs to be increased accordingly. Open the tensioning oil cylinder 9, and the piston rod of the tensioning oil cylinder 9 retracts, driving the connecting rod 2 and the connecting rod 3 to move. The connecting rod 2 and the connecting rod 3 drive the roller shaft to move, thereby pulling the tensioning roller 14 to move upward and forward. The scraper chain becomes relatively longer as the tensioning distance of the tensioning roller 14 decreases, so that the length of the scraper chain in the scraper conveyor chute matches the length of the scraper conveyor chute after expansion and contraction.

[0031] When adjusting the material discharge point of the scraper conveyor chute and the scraper conveyor chute needs to be shortened, the front chute 1 needs to slide backward and retract. Open the chute oil cylinder 7, and the piston rod of the chute oil cylinder 7 retracts, and pulls the front chute 1 to move backward. While the front chute 1 is moving backward, the rear end of the side plate of the front chute 1 slides backward in the chute. The rear chute tongue 6 will slide backward relative to the surface of the high magnetic attraction plate 1 on the upper surface of the lower bottom plate of the front chute 1 under the strong magnetic attraction of the high magnetic attraction plate 1, superimposing and retracting the distance generated by the retraction of the lower bottom plate of the rear chute 4; At the same time, the front chute tongue 3 will slide forward along the surface of the high magnetic attraction plate 2 under the strong magnetic attraction of the high magnetic attraction plate 2 on the lower surface of the upper bottom plate of the rear chute 4, superimposing and retracting the distance generated by the retraction of the upper bottom plate of the rear chute 4; At the same time, during this process, since the length of the scraper conveyor chute is shortened, the length of the scraper chain needs to be shortened accordingly. Open the tensioning oil cylinder 9, and the piston rod of the tensioning oil cylinder 9 extends, driving the connecting rod 2 and the connecting rod 3 to move. The connecting rod 2 and the connecting rod 3 drive the roller shaft to move, thereby pushing the tensioning roller 14 to move downward and backward. The scraper chain becomes relatively shorter as the tensioning distance of the tensioning roller 14 increases, so that the length of the scraper chain in the scraper conveyor chute matches the length of the scraper conveyor chute after expansion and contraction.

[0032] The above-described embodiments are only the preferred embodiments of the utility model, and do not limit the scope of implementation of the utility model. Therefore, any equivalent changes or modifications made to the technical solutions described in the scope of the utility model patent should be included in the scope of the utility model patent application.

Claims

1. A telescopic scraper conveyor chute, characterized in that, It includes a front chute (1) and a rear chute (4). One end of the front chute (1) is slidably sleeved inside the rear chute (4). A telescopic assembly is provided on the inner side of the side plate of the rear chute (4), and the telescopic assembly is connected to the side plate of the front chute (1). A chain tensioning mechanism is provided at one end of the rear chute (4) away from the front chute (1). The chain tensioning mechanism includes a tensioning roller (14) and two chain tensioning assemblies. The two chain tensioning assemblies are respectively connected to both ends of the tensioning roller (14).

2. The telescopic scraper conveyor chute according to claim 1, wherein, One end of both side plates of the front chute (1) close to the rear chute (4) is of a triangular structure. A first high magnetic attraction plate (2) is inlaid on the upper surface of one end of the lower bottom plate of the front chute (1) close to the rear chute (4). A front chute tongue (3) is connected to one end of the upper bottom plate of the front chute (1) close to the rear chute (4).

3. The telescopic scraper conveyor chute according to claim 2, characterized in that, One end of both side plates of the rear chute (4) close to the front chute (1) is also of a triangular structure. Parallel - quadrilateral - shaped chutes are formed on the inner sides of both side plates of the rear chute (4). One end of the side plate of the front chute (1) close to the rear chute (4) is slidably arranged in the chutes.

4. A telescopic scraper conveyor chute according to claim 3, characterized in that, A rear chute tongue (6) that cooperates with the first high magnetic attraction plate (2) is connected to the end of the lower bottom plate of the rear chute (4). A second high magnetic attraction plate (5) that cooperates with the front chute tongue (3) is inlaid on the lower surface of the upper bottom plate of the rear chute (4).

5. A telescopic scraper conveyor chute according to claim 1, characterized in that, The telescopic assembly is a chute oil cylinder (7). The tail end of the chute oil cylinder (7) is connected to the side plate of the rear chute (4), and the piston rod is connected to the side plate of the front chute (1).

6. A telescopic scraper conveyor chute according to claim 1, characterized in that, Roller shafts are connected to both ends of the tensioning roller (14). The chain tensioning assemblies are arranged on the outer sides of the side plates of the rear chute (4). The chain tensioning assembly includes a tensioning oil cylinder (9), a first connecting rod (10), a second connecting rod (11), a third connecting rod (12), and a fourth connecting rod (13). The tensioning oil cylinder (9) and the first connecting rod (10) are both arranged on the outer sides of the side plates of the rear chute (4). Both ends of the second connecting rod (11) are respectively rotatably connected to the first connecting rod (10) and the piston rod of the tensioning oil cylinder (9). Both ends of the third connecting rod (12) are respectively rotatably connected to the piston rod of the tensioning oil cylinder (9) and the roller shaft. Both ends of the fourth connecting rod (13) are respectively rotatably connected to the roller shaft and the first connecting rod (10).

7. A telescopic scraper conveyor chute according to claim 1, wherein, Transition sprockets (8) are rotatably arranged on the inner sides of both side plates of the rear chute (4).

Images