Continuous belt conveyor turning structure with large angle and small turning radius

Abstract

The invention provides a large-angle and small-turning-radius continuous belt conveyor turning structure, and relates to the technical field of tunnel construction technologies. Comprising a supporting frame body, and the supporting frame body is provided with an upper conveying part and a lower conveying part; the upper carrier roller assembly is mounted on the upper conveying part of the supporting frame main body; the lower carrier roller assembly is mounted on the lower conveying part of the supporting frame main body; and the compression roller assembly is installed on the upper carrier roller assembly and the lower carrier roller assembly, and when the compression roller assembly operates, the compression roller assembly reduces the stroke difference of an inner curve and an outer curve of the supporting frame body so as to make up the tension difference of the inner curve and the outer curve. By means of the device, the problems that in the small-turning conveying technology, belt deviation, outer side rubber belt turning, material scattering and the like are likely to happen are solved, and then the effects that self-adaptive deviation adjustment is conducted to a certain degree, the inner belt runs in a wave mode through the lower pressing roller, and the tension difference of the conveying belt under the inner curve and the outer curve is reduced are achieved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of tunnel construction, and in particular to a continuous belt conveyor turning structure with a large angle and a small turning radius. Background Art

[0002] Belt conveyor, also known as belt conveyor or belt conveyor, is a kind of material conveying equipment widely used in the industrial field. The working principle of the existing belt conveyor mainly relies on the movement of the belt to drive the transportation of materials. It is composed of a drive device, a roller, a roller, a support frame, etc. When working, the drive device transmits power to the roller, and the roller drives the belt to move, thereby realizing the transportation of materials. The drive device usually uses an electric motor as the power source, and converts the high-speed rotating power into a speed suitable for the movement of the belt through a reduction device, while increasing the driving torque to ensure that the belt conveyor can transport materials with a large load.

[0003] At present, continuous belt conveyors are more and more widely used in tunnels and mines. As construction conditions become more and more complex, large-angle and small-turn projects are gradually increasing. Based on some projects, there are projects with a turning radius of about 80 meters and a turning angle of about 180°. However, the existing continuous belt conveyor technology for small-turn transportation is prone to belt deviation, outer belt flipping, material spillage and other problems, which cannot meet the transportation and slag discharge needs and has low reliability. Summary of the invention

[0004] The embodiment of the present invention provides a continuous belt conveyor turning structure with a large angle and a small turning radius, so as to at least solve the problems in the related art that the belt is prone to deviation, the outer belt flipping, and material spillage in small turning conveying technology.

[0005] According to one embodiment of the present invention, there is provided a continuous belt conveyor turning structure with a large angle and a small turning radius, comprising: a support frame main body, the support frame main body having an upper conveying part and a lower conveying part; an upper roller assembly, the upper roller assembly being installed on the upper conveying part of the support frame main body; a lower roller assembly, the lower roller assembly being installed on the lower conveying part of the support frame main body; and a pressure roller assembly, the pressure roller assembly being installed on the upper roller assembly and the lower roller assembly, and when the pressure roller assembly is running, the pressure roller assembly reduces the inner and outer curve travel difference of the support frame main body and thereby compensates for the inner and outer curve tension difference.

[0006] Through the above technical solution, the continuous belt conveyor turning structure with large angle and small turning radius includes a support frame body, an upper roller assembly, a lower roller assembly and a pressure roller assembly. The support frame body is divided into an upper conveying part and a lower conveying part, the upper roller assembly is installed on the upper conveying part, the lower roller assembly is installed on the lower conveying part, and the pressure roller assembly is installed on the upper roller assembly and the lower roller assembly to reduce the difference in inner and outer curve travel and compensate for the tension difference.

[0007] According to one embodiment of the present invention, the upper roller assembly includes a first upper roller and a second upper roller, the first upper roller is obliquely installed on the upper conveying part of the support frame body, the second upper roller is obliquely installed on the upper conveying part of the support frame body, and the inclination directions of the first upper roller and the second upper roller are opposite.

[0008] The above technical solution comprises a first upper roller and a second upper roller, both of which are obliquely installed on the upper conveying part of the support frame body and have opposite inclination directions.

[0009] According to one embodiment of the present invention, the upper roller assembly also includes a third upper roller, which is horizontally installed on the upper conveying part of the support frame body, and the first upper roller, the second upper roller and the third upper roller form a U-shape.

[0010] Through the above technical solution, the upper roller assembly also includes a third upper roller, which is horizontally installed on the upper conveying part of the support frame body, and together with the first upper roller and the second upper roller forms a U-shaped structure. In this way, when the conveyor belt moves in the upper roller assembly, the upper conveyor belt can carry and transport more materials.

[0011] According to one embodiment of the present invention, the lower roller assembly includes a first lower roller and a second lower roller, the first lower roller is obliquely installed on the lower conveying part of the support frame body, the second lower roller is obliquely installed on the lower conveying part of the support frame body, the inclination direction of the first lower roller is opposite to the inclination direction of the second lower roller, and the first lower roller and the second lower roller form a V-shape.

[0012] Through the above technical solution, including the first lower roller and the second lower roller, both are obliquely installed on the lower conveying part of the support frame body, and the inclination directions are opposite to each other, forming a V-shaped structure, so that the deviation of the lower conveyor belt can be limited.

[0013] According to one embodiment of the present invention, the support frame main body includes an upper roller frame, a lower roller frame and an intermediate frame, the upper roller frame is installed on the upper conveying part of the support frame main body, the lower roller frame is installed on the lower conveying part of the support frame main body, and the intermediate frame is installed between the upper roller frame and the lower roller frame.

[0014] Through the above technical solution, the support frame body includes an upper roller frame, a lower roller frame and an intermediate frame, which are respectively installed on the upper conveying part and the lower conveying part of the support frame body, and the intermediate frame is installed between the upper roller frame and the lower roller frame.

[0015] According to one embodiment of the present invention, the upper roller frame and the lower roller frame are alternately arranged on the support frame body.

[0016] Through the above technical solution, the upper roller frame and the lower roller frame are staggered on the support frame body. The staggered arrangement can help reduce the unsupported distance of the upper transmission belt and the lower conveyor belt, improve the smoothness of transportation, and extend the service life.

[0017] According to one embodiment of the present invention, the pressure roller assembly includes a first upper pressure roller and a lower pressure roller, the first upper pressure roller is installed on the upper roller frame and is arranged parallel to the first upper roller, the first upper pressure roller and the first upper roller have a predetermined gap, and the lower pressure roller is movably installed on the lower roller frame, and the lower pressure roller and the first lower roller and the second lower roller have a predetermined gap.

[0018] According to the above technical solution, the pressure roller assembly includes a first upper pressure roller and a lower pressure roller, the first upper pressure roller is arranged parallel to the first upper roller and has a predetermined gap, and the lower pressure roller is movably mounted on the lower roller frame and has a predetermined gap with the first lower roller and the second lower roller. The upper conveyor belt can move through the gap.

[0019] According to one embodiment of the present invention, the pressure roller assembly also includes a second upper pressure roller, which is horizontally installed on the upper roller frame, the second upper pressure roller and the second upper roller have a predetermined angle, and the second upper pressure roller and the second upper roller have a predetermined gap.

[0020] According to the above technical solution, the pressure roller assembly further comprises a second upper pressure roller, which is horizontally mounted on the upper roller frame and has a predetermined angle and gap with the second upper roller. The upper conveyor belt can move through the gap.

[0021] According to one embodiment of the present invention, it further comprises a belt stop assembly, wherein the belt stop assembly is installed on the upper roller frame.

[0022] Through the above technical solution, the belt blocking device is installed on the upper roller frame, and the belt blocking device can prevent the material from being scattered during the turning process.

[0023] According to one embodiment of the present invention, a plurality of tripods are further included, wherein the tripods are obliquely installed on the support frame body, and a side of the tripod away from the support frame body is connected to a side wall of the construction working environment.

[0024] Through the above technical solution, the tripod and the support frame body are both connected to the side wall of the construction working condition. Since the side wall of the construction working condition has an irregular shape, such an installation method can increase the stability of the support frame body.

[0025] Through the present invention, the upper conveyor belt and the lower conveyor belt move in the gap between them to prevent the belt from turning over due to the connection between the pressure roller assembly and the upper and lower roller assemblies. Therefore, the problems of belt deviation, outer belt turning over, and material spillage in small turning conveying technology can be solved, and the effect of improving the self-adaptive deviation adjustment to a certain extent is achieved, and the inner belt is made to run in waves by using the lower pressure roller, so as to reduce the tension difference of the conveyor belt under the inner and outer curves. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a partial schematic diagram of a turning structure of a continuous belt conveyor with a large angle and a small turning radius according to an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a continuous belt conveyor turning structure with a large angle and a small turning radius including a pull rope and an adjusting member according to an embodiment of the present invention; Figure 3 It is a schematic diagram of the overall structure of a display adjustment member of a continuous belt conveyor turning structure with a large angle and a small turning radius according to an embodiment of the present invention; Figure 4 It is a schematic fracture diagram of a continuous belt conveyor turning structure with a large angle and a small turning radius according to an embodiment of the present invention.

[0027] 10. Support frame body; 11. Upper roller frame; 12. Lower roller frame; 13. Intermediate frame; 20. Upper roller assembly; 21. First upper roller; 22. Second upper roller; 23. Third upper roller; 30. Lower roller assembly; 31. First lower roller; 32. Second lower roller; 40. Pressing roller assembly; 41. First upper pressing roller; 42. Second upper pressing roller; 43. Lower pressing roller; 50. upper conveyor belt; 60. lower conveyor belt; 70. belt blocking device; 80. tripod; 90. Pull rope; 100. Adjustment member; 110. Adjustment body; 120. Clamping cam; 130. Hook; 140. Rope accommodating channel. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0029] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0030] In addition, in the present application, directional terms such as "up", "down", "left" and "right" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly according to the change in the orientation of the components in the drawings.

[0031] In this application, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, the term "coupling" can be a way of achieving electrical connection for signal transmission.

[0032] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0033] In this embodiment, a continuous belt conveyor turning structure with a large angle and a small turning radius is provided, which will be described in detail below.

[0034] Reference Figures 1 to 4 The large-angle and small-turning-radius continuous belt conveyor turning structure comprises a support frame body 10, an upper roller assembly 20, a lower roller assembly 30 and a pressure roller assembly 40, wherein the support frame body 10 is installed on the side wall of the construction working condition, the support frame body 10 has an upper conveying part and a lower conveying part, the upper roller assembly 20 and the lower roller assembly 30 are installed on the support frame body 10 in a predetermined arrangement, the upper roller assembly 20 is installed on the upper conveying part of the support frame body 10, the lower roller assembly 30 is installed on the lower conveying part of the support frame body 10, and a plurality of pressure roller assemblies 40 are respectively installed on the upper roller assembly 20 and the lower roller assembly 30, and the pressure roller assembly 40 is used in conjunction with the upper roller assembly 20 and the lower roller assembly 30 to prevent the belt from flipping.

[0035] It is worth mentioning that the support frame body 10 includes an upper roller frame 11 and a lower roller frame 12 , the upper roller frame 11 is installed on the upper conveying part of the support frame body 10 , and the lower roller frame 12 is installed on the lower conveying part of the support frame body 10 .

[0036] Furthermore, the support frame body 10 also includes an intermediate frame 13, which is installed between the upper roller frame 11 and the lower roller frame 12, and is used to separate the conveying space of the support frame body 10, the upper conveyor belt 50 is movably installed on the upper part of the intermediate frame 13, and the lower conveyor belt 60 is movably installed on the lower part of the intermediate frame 13.

[0037] Specifically, the large-angle, small-turning-radius continuous belt conveyor turning structure further includes an upper conveyor belt 50 and a lower conveyor belt 60. The upper conveyor belt 50 is installed on the upper conveying portion, and the lower conveyor belt 60 is installed on the lower conveying portion.

[0038] In this embodiment, the upper roller frame 11 and the lower roller frame 12 are staggered on the support frame body 10. When the upper conveyor belt 50 and the lower conveyor belt 60 move on the upper roller frame 11 and the lower roller frame 12, the staggered arrangement can help reduce the unsupported distance of the upper conveyor belt 50 and the lower conveyor belt 60, improve the smoothness of transportation, and extend the service life.

[0039] Specifically, the upper roller assembly 20 includes a first upper roller 21 and a second upper roller 22, the first upper roller 21 is obliquely installed on the upper conveying part of the support frame body 10, and the second upper roller 22 is obliquely installed on the upper conveying part of the support frame body 10, and the inclination directions of the first upper roller 21 and the second upper roller 22 are opposite.

[0040] That is, the first upper roller 21 and the second upper roller 22 are installed on the upper roller frame 11, and the first upper roller 21 and the second upper roller 22 form a conveying space.

[0041] Furthermore, the upper roller assembly 20 also includes a third upper roller 23, which is installed on the upper conveying part of the support frame body 10, and the third upper roller 23 is horizontally installed between the first upper roller 21 and the second upper roller 22.

[0042] That is to say, the first upper roller 21, the second upper roller 22 and the third upper roller 23 form a U-shaped belt conveying space on the upper roller frame 11. When the upper conveyor belt 50 moves in the upper conveying part, a U-shape is formed in the U-shaped belt conveying space. In this way, the upper conveyor belt 50 can carry and transport more materials.

[0043] Specifically, the pressure roller assembly 40 includes a first upper pressure roller 41 and a lower pressure roller 43 , the first upper pressure roller 41 is installed on the upper roller frame 11 , and the first upper pressure roller 41 is installed in parallel at one end close to the first upper roller 21 and away from the third upper roller 23 .

[0044] That is to say, the first upper pressure roller 41 and the first upper support roller 21 are horizontally arranged, and there is a predetermined gap between the first upper pressure roller 41 and the first upper support roller 21. The upper conveyor belt 50 can move along the gap between the first upper pressure roller 41 and the first upper support roller 21 to ensure that the edge of the upper conveyor belt 50 is not folded.

[0045] In this way, the first upper pressure roller 41 and the upper roller assembly 20 are used in conjunction with each other, and the first upper pressure roller 41 is used to make the inner curve of the upper conveyor belt 50 run in waves, thereby reducing the stroke difference between the inner and outer curves and thus compensating for the tension difference between the inner and outer curves.

[0046] Furthermore, the pressure roller assembly 40 also includes a second upper pressure roller 42, which is horizontally installed on the upper roller frame 11, and the second upper pressure roller 42 is close to the end of the second upper roller 22 away from the third upper roller 23, and a predetermined gap is formed between the second upper pressure roller 42 and the second upper roller 22, and the predetermined gap formed by the second upper pressure roller 42 and the second upper roller 22 is horizontally set.

[0047] When the upper conveyor belt 50 moves in the upper conveying part, the upper conveyor belt 50 is U-shaped. At this time, the upper conveyor belt 50 close to the first upper roller 21 is tilted under the action of the first upper pressure roller 41, and the upper conveyor belt 50 close to the second upper roller 22 is horizontally set under the action of the second upper pressure roller 42.

[0048] In this arrangement, when the upper conveyor belt 50 moves in the upper conveying portion, the two side walls of the upper conveyor belt 50, one side wall of which opens into the second upper pressure roller 42, is gradually bent toward the side close to the second upper roller 22 under the action of the second upper pressure roller 42, so that the side of the upper conveyor belt 50 close to the second upper pressure roller 42 gradually becomes parallel, that is, the upper conveyor belt 50 can be prevented from folding.

[0049] Furthermore, the lower pressure roller 43 is installed obliquely on the lower roller frame 12, and the lower pressure roller 43 is installed at an end away from each other between the first lower roller 31 and the second lower roller 32, and the inclination direction of the lower pressure roller 43 is determined according to specific construction conditions.

[0050] Furthermore, the lower pressure roller 43 is movably mounted on the lower roller frame 12. The further down the lower roller frame 12 is on the inner curve side of the bend, the greater the wave fluctuation of the lower conveyor belt 60 on the inner curve side, and the better the tension compensation effect on the inner and outer curve side belts of the lower conveyor belt 60.

[0051] Specifically, the lower roller assembly 30 includes a first lower roller 31 and a second lower roller 32. The first lower roller 31 is obliquely installed on the lower roller frame 12, and the second lower roller 32 is obliquely installed on the lower roller frame 12. The inclination direction of the first lower roller 31 is opposite to the inclination direction of the second lower roller 32.

[0052] That is, the first lower roller 31 and the second lower roller 32 are installed on the lower roller frame 12, and the first lower roller 31 and the second lower roller 32 form a V-shaped conveying space. In this way, the deviation of the lower conveyor belt 60 can be limited.

[0053] That is to say, the first lower roller 31, the second lower roller 32 and the lower pressure roller 43 form a triangular area, and there is a predetermined gap between the first lower roller 31, the second lower roller 32 and the lower pressure roller 43, and when the lower conveyor belt 60 moves in the lower conveying part of the support frame body 10, the lower conveyor belt 60 is V-shaped.

[0054] In this embodiment, the lower pressure roller 43 is V-shaped and hinged in the tunnel cross section, and there is a closed line at the projection of the first lower roller 31 and the second lower roller 32 at both ends, so the lower conveyor belt 60 is not allowed to run out of the range of the V-shaped hinged first lower roller 31 and the second lower roller 32. At the same time, the lower pressure roller 43 is not allowed to contact or rub against the outer curve side of the turning section, so its adjustment range is therefore limited.

[0055] It is worth mentioning that the lower conveyor belt 60 is V-shaped and can be adaptively adjusted to a certain extent. The lower pressure roller 43 is used to make the inner belt of the lower conveyor belt 60 run in waves, thereby reducing the tension difference between the inner and outer curves of the lower conveyor belt 60. At the same time, the lower pressure roller 43 is used to limit the offset displacement of the lower conveyor belt 60, thereby achieving large-angle and small-turn transportation while meeting transportation needs.

[0056] Specifically, the large-angle, small-turning-radius continuous belt conveyor turning structure further includes a plurality of belt-blocking devices 70, which are mounted on the upper roller frame 11. The belt-blocking devices 70 can prevent materials from being scattered during the turning process, ensuring that the materials can pass through the turning part smoothly, reducing material loss and environmental pollution. The belt-blocking devices 70 are structures well known to those skilled in the art, and will not be described in detail here.

[0057] Specifically, the large-angle, small-turning-radius continuous belt conveyor turning structure also includes a plurality of tripods 80, and the plurality of tripods 80 are equidistantly installed on the support frame body 10, and the side of the tripod 80 away from the support frame body 10 is fixedly installed on the side wall of the construction working condition. In this way, the tripod 80 and the support frame body 10 are both connected to the side wall of the construction working condition. Since the side wall of the construction working condition has an irregular shape, such an installation method can increase the stability of the support frame body 10, thereby ensuring the stability of the upper conveyor belt 50 and the lower conveyor belt 60 in transporting materials.

[0058] Specifically, the continuous belt conveyor turning structure with a large angle and a small turning radius also includes a plurality of pull ropes 90 and an adjusting member 100. The plurality of pull ropes 90 are equidistantly installed on the support frame body 10. The side of the pull rope 90 away from the support frame body 10 is detachably installed on the side wall of the construction working condition. A plurality of mounting holes are opened on the support frame body 10, and the pull rope 90 can pass through the mounting holes. The adjusting member 100 is installed on the pull rope 90 to tighten or release the pull rope 90.

[0059] Furthermore, the adjusting member 100 includes an adjusting body 110, a clamping cam 120 and a spring, wherein the adjusting body 110 has a accommodating cavity, the clamping cam 120 is installed in the accommodating cavity of the adjusting body 110, and the spring is installed on the clamping cam 120. In this embodiment, the clamping cam 120 is an eccentric cam.

[0060] It is worth mentioning that the adjusting body 110 also has a rope accommodating channel 140. When the clamping cam 120 is not affected by external force, the clamping cam 120 is partially located in the rope accommodating channel 140. That is to say, when the pull rope 90 passes through the rope accommodating channel 140, the pull rope 90 is squeezed into the rope accommodating channel 140 under the action of the clamping cam 120, and the length of the pull rope 90 is fixed at this time.

[0061] In this embodiment, the clamping cam 120 is provided with anti-skid grooves on one side close to the pull rope 90 . The anti-skid grooves abut against the pull rope 90 , thereby increasing friction and better fixing the pull rope 90 in the rope accommodating cavity.

[0062] Furthermore, the adjusting member 100 further comprises a hook 130 and a lock, wherein the hook 130 is mounted on the adjusting body 110, and the lock is rotatably mounted on the hook 130. That is, a hanging space is formed between the hook 130 and the lock, and when the lock is separated from the hook 130, the hanging space is opened, and the adjusting body 110 can be placed at a designated position; when the lock is closed with the hook 130, the hanging space is closed, and the adjusting body 110 is fixedly placed at the designated position.

[0063] That is, the operator installs the hook 130 to the installation hole of the support frame body 10, and then passes the pull rope 90 through the rope receiving channel 140 of the adjustment body 110. The operator pulls the pull rope 90 to a predetermined position, and when the pull rope 90 is in a tensioned state, the pull rope 90 is fixed to the side wall of the construction condition. In this way, the state of the adjustment rope 90 can be adjusted according to the conditions of the construction condition, and the stability of the support frame body 10 in the construction condition can be further improved.

[0064] Furthermore, the hook 130 is provided with a slot, and the slot is interference fit with the lock. In this embodiment, the cross section of the slot is C-shaped. The slot may also be provided with a guide slope (not shown in the figure), and the guide slope may block and / or guide the lock. In other words, the lock is guided to the slot, the lock is stably buckled in the slot, and the lock may be prevented from escaping from the slot.

[0065] In summary, according to the working conditions of the construction, the support frame body 10 is installed on the side wall of the construction working condition, and then the tripod 80 is installed on the side wall of the construction working condition. The upper conveyor belt 50 and the lower conveyor belt 60 move in the upper conveying part and the lower conveying part of the support frame body 10. When encountering a large-angle small-turn working condition, the upper roller assembly 20 uses a U-shaped roller group in conjunction with the first upper pressure roller 41. On the one hand, the first upper pressure roller 41 is used to make the inner curve belt run in waves, reduce the difference in the stroke of the inner and outer curves, and then make up for the tension difference between the inner and outer curves, and on the other hand, avoid the folding of the upper conveyor belt 50; the lower conveyor belt 60 adopts a V-shaped hinged lower roller assembly 30, which is adaptively adjusted to a certain extent, and the lower pressure roller 43 is used to make the inner belt run in waves, reducing the tension difference between the inner and outer curves of the lower conveyor belt 60. In this way, large-angle and small-turn transportation can be achieved while meeting transportation needs.

[0066] The turning structure design of this continuous belt conveyor with large angle and small turning radius comprehensively considers stability, material transportation efficiency and turning performance, and realizes efficient material transportation under complex working conditions.

[0067] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application shall be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A continuous belt conveyor turning structure with a large angle and a small turning radius, characterized in that: include: A support frame body, wherein the support frame body has an upper conveying portion and a lower conveying portion; An upper roller assembly, the upper roller assembly being installed on the upper conveying portion of the support frame body; A lower roller assembly, the lower roller assembly being mounted on the lower conveying portion of the support frame body; as well as The pressure roller assembly is installed on the upper roller assembly and the lower roller assembly. When the pressure roller assembly is running, the pressure roller assembly reduces the inner and outer curve travel difference of the support frame body and thus compensates for the inner and outer curve tension difference.

2. The continuous belt conveyor turning structure with large angle and small turning radius according to claim 1 is characterized in that: The upper roller assembly includes a first upper roller and a second upper roller, the first upper roller is obliquely installed on the upper conveying part of the support frame body, the second upper roller is obliquely installed on the upper conveying part of the support frame body, and the inclination directions of the first upper roller and the second upper roller are opposite.

3. The large-angle, small-turning-radius continuous belt conveyor turning structure according to claim 2 is characterized in that: The upper roller assembly also includes a third upper roller, which is horizontally installed on the upper conveying portion of the support frame body, and the first upper roller, the second upper roller and the third upper roller form a U-shape.

4. The large-angle, small-turning-radius continuous belt conveyor turning structure according to claim 3 is characterized in that: The lower roller assembly includes a first lower roller and a second lower roller, the first lower roller is obliquely installed on the lower conveying part of the support frame body, the second lower roller is obliquely installed on the lower conveying part of the support frame body, the inclination direction of the first lower roller is opposite to the inclination direction of the second lower roller, and the first lower roller and the second lower roller form a V-shape.

5. The continuous belt conveyor turning structure with large angle and small turning radius according to claim 4 is characterized in that: The support frame body includes an upper roller frame, a lower roller frame and an intermediate frame, the upper roller frame is installed on the upper conveying part of the support frame body, the lower roller frame is installed on the lower conveying part of the support frame body, and the intermediate frame is installed between the upper roller frame and the lower roller frame.

6. The large-angle, small-turning-radius continuous belt conveyor turning structure according to claim 5 is characterized in that: The upper roller frame and the lower roller frame are arranged alternately on the supporting frame body.

7. The continuous belt conveyor turning structure with large angle and small turning radius according to claim 5 is characterized in that: The pressure roller assembly includes a first upper pressure roller and a lower pressure roller, the first upper pressure roller is installed on the upper roller frame and is arranged parallel to the first upper roller, the first upper pressure roller and the first upper roller have a predetermined gap, the lower pressure roller is movably installed on the lower roller frame, and the lower pressure roller and the first lower roller and the second lower roller have a predetermined gap.

8. The large-angle, small-turning-radius continuous belt conveyor turning structure according to claim 7 is characterized in that: The pressure roller assembly also includes a second upper pressure roller, which is horizontally installed on the upper roller frame, the second upper pressure roller and the second upper roller have a predetermined angle, and the second upper pressure roller and the second upper roller have a predetermined gap.

9. The continuous belt conveyor turning structure with large angle and small turning radius according to claim 5 is characterized in that: It also includes a belt blocking assembly, which is installed on the upper roller frame.

10. The continuous belt conveyor turning structure with large angle and small turning radius according to claim 1 is characterized in that: It also includes a plurality of tripods, which are obliquely installed on the support frame body, and a side of the tripod away from the support frame body is connected to a side wall of the construction working environment.

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