A roller set, a roller set combination and a belt conveyor comprising the combination

Abstract

The present application relates to the technical field of belt conveyors, in particular to a roller set, a roller set combination and a belt conveyor comprising the combination. The present application provides a roller set combination, which comprises a first roller set, a second roller set and a third roller set. The third roller set has the functions of braking and driving. The present application can realize the multiple increase of driving or braking force, share the pressure of the main driving device or braking device, avoid the excessive tension of the belt, reduce production accidents and improve the service life of the equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of belt conveyors, in particular to a carrier roller set, a carrier roller set combination and a belt conveyor comprising the combination. BACKGROUND

[0002] With the requirements of modern development, environmental protection has become an increasingly important issue in today's era and has attracted widespread attention worldwide. The dust and material removal generated by bulk material conveying systems during operation have caused increasing concern among the design, manufacture, use and administration departments of conveying machinery in various countries around the world. In order to reduce pollution during conveying, promote environmentally friendly and pollution-free conveying of bulk materials, the advantages of belt conveyors in conveying bulk materials are becoming increasingly apparent, and they are being used more and more widely. With the continuous innovation of belt conveyor technology, belt conveyors are developing towards long-distance, large-capacity and large-inclination belt conveyors. Due to the continuity of belt conveyors, the driving device and the braking device are often arranged at the head or tail, or at the head and tail respectively, causing the tension of the conveying belt to be large when the belt conveyor starts or brakes, which not only requires a large selection of driving or braking devices during design, but also may cause a belt breakage hazard in extreme cases. SUMMARY

[0003] To solve the above technical problems, the present application provides a carrier roller set with braking and driving functions. The carrier roller set of the present application is distributed at multiple points along the conveyor, which can achieve a fold increase in driving force or braking force, reduce the pressure on the main braking or driving device, avoid excessive tension of the conveying belt during driving or braking, reduce production accidents and improve equipment life.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: the present application provides a carrier roller set comprising a control system and a carrier roller set body, the carrier roller set body comprising a carrier roller frame and an auxiliary carrier roller set arranged on the carrier roller frame, wherein the auxiliary carrier roller set is arranged on the carrier roller frame by a connecting device.

[0005] Further, the connecting device comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod; wherein one end of the first connecting rod is connected to the carrier roller frame, and the other end is hinged to the second connecting rod;

[0006] one end of the second connecting rod is hinged to the first connecting rod, and the other end is hinged to the third connecting rod; one end of the third connecting rod is hinged to the second connecting rod, and the other end is hinged to the fourth connecting rod; one end of the fourth connecting rod is connected to the carrier roller frame, and the other end is hinged to the third connecting rod; one end of the fifth connecting rod is connected to the carrier roller frame through an adjusting nut, and the other end is hinged to the second connecting rod and the third connecting rod.

[0007] Further, the fifth connecting rod is a screw rod, and the adjusting nut is used to adjust the forward and backward movement of the fifth screw rod.

[0008] Further, the auxiliary roller group has two groups, which are arranged on the two sides of the roller frame through the connecting device, and each group of auxiliary roller group includes an upper auxiliary roller and a lower auxiliary roller.

[0009] Further, the upper auxiliary roller and the lower auxiliary roller can be controlled to rotate forward or reverse.

[0010] Further, the present application also provides a roller group combination, which includes a first roller group, a second roller group and a third roller group, wherein the third roller group is the aforementioned roller group, wherein the first roller group is provided with a groove angle α, the second roller group is provided with a groove angle β, and the third roller group is provided with a groove angle γ, wherein γ < β < α.

[0011] Further, the present application provides a belt conveyor, which includes the aforementioned roller group combination, wherein the first roller group, the second roller group and the third roller group are sequentially installed on the middle frame of the conveyor.

[0012] Further, the first roller group, the second roller group and the third roller group are one or more groups.

[0013] The roller group with the brake and driving functions in the present application and the roller group combination containing the roller group are used in cooperation with the traditional arrangement of the driving device and the brake device, which are only concentrated in the middle or the head or the tail, and the mode of using the multiple-point distribution of the roller group of the present application can realize the multiple increase of the driving force or the brake force, reduce the pressure of the main brake device or the driving device, avoid the excessive tension of the conveyor belt during driving or braking, reduce production accidents and improve the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and other objects and advantages of the present application will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which like elements are referred to by like reference numerals.

[0015] Figure 1 is a schematic view of the arrangement of the roller group combination in the present application at a certain position in the length direction of the belt conveyor.

[0016] Figure 2 is a sectional view of the first roller group.

[0017] Figure 3 is a sectional view of the second roller group.

[0018] Figure 4 is a schematic view of a cross section of the third roller group.

[0019] Figure 5 is Figure 4 is a partial enlarged view of the connecting device.

[0020] Reference signs: 1 - first roller group, 2 - second roller group, 3 - third roller group, 4 - conveyor belt, 31 - roller frame, 32 - auxiliary roller group, 33 - connecting device, 321 - upper auxiliary roller, 322 - lower auxiliary roller, 331 - first connecting rod, 332 - second connecting rod, 333 - third connecting rod, 334 - fourth connecting rod, 335 - fifth connecting rod, 336 - adjusting nut. Embodiment

[0021] The application will be further described below in conjunction with the embodiments. The advantages and features of the application will be more apparent as the description proceeds. However, these embodiments are only exemplary and do not constitute any limitation on the scope of the application. Those skilled in the art should understand that the details and forms of the technical solutions of the application can be modified or replaced without departing from the spirit and scope of the application, and such modifications and replacements fall within the protection scope of the application.

[0022] The terms such as "comprising" and "including" mean that the technical solutions of the application do not exclude the presence of other components not directly or explicitly described in the specification and claims. In the description herein, the orientation terms such as "upper", "lower", "front", "back" and the like should be understood as relative concepts, which are used for relative position description and clarification, and the corresponding specific orientation can be changed accordingly according to the change of the orientation of the application.

[0023] As Figures 1-5 shown, the application provides a roller group with braking and driving functions. The application can realize the multiplication of driving force or braking force, reduce the pressure of main braking or driving device, avoid excessive tension of the conveyor belt during driving or braking, reduce production accidents and improve equipment life by using the application's roller group in multiple points along the line.

[0024] As Figure 4 shown, the roller group comprises a control system and a roller group body, wherein the roller group body comprises a roller frame 31 and an auxiliary roller group 32 arranged on the roller frame 31, and the auxiliary roller group 32 is arranged on the roller frame 31 by a connecting device 33.

[0025] As Figure 5The connecting device 33 of the application comprises a first connecting rod 331, a second connecting rod 332, a third connecting rod 333, a fourth connecting rod 334 and a fifth connecting rod 335. One end of the first connecting rod 331 is connected to the roller support 31, and the other end is hinged to the second connecting rod 332. One end of the second connecting rod 332 is hinged to the first connecting rod 331, and the other end is hinged to the third connecting rod 333. One end of the third connecting rod 333 is hinged to the second connecting rod 332, and the other end is hinged to the fourth connecting rod 334. One end of the fourth connecting rod 334 is connected to the roller support 31, and the other end is hinged to the third connecting rod 333. One end of the fifth connecting rod 335 is connected to the roller support 31 through an adjusting nut 336, and the other end is hinged to the second connecting rod 332 and the third connecting rod 333. The fifth connecting rod 335 is a screw rod, and the adjusting nut 336 is used to adjust the forward and backward movement of the fifth connecting rod 335. The clamping force between the upper auxiliary roller 321 and the lower auxiliary roller 322 is further adjusted.

[0026] In this embodiment, the auxiliary roller group 32 has two groups, which are arranged on both sides of the roller support 31 through the connecting device 33. Each group of auxiliary rollers 32 comprises an upper auxiliary roller 321 and a lower auxiliary roller 322. One end of the upper auxiliary roller 321 is connected to the end of the first connecting rod 331, and one end of the lower auxiliary roller 322 is connected to one end of the fourth connecting rod 334. The upper auxiliary roller 321 and the lower auxiliary roller 322 clamp the conveyor belt 4 during operation. The auxiliary roller group is electrically connected to the control system. According to the driving or braking requirements of the control system, the linear speed of the upper and lower auxiliary rollers is controlled to rotate in the same direction as the running direction of the conveyor belt or in the opposite direction. When the auxiliary braking function is realized, the upper and lower auxiliary rollers can also passively rotate with the conveyor belt. In this embodiment, the upper auxiliary roller 321 and the lower auxiliary roller 322 in the third roller 3 are electrically encapsulated rollers. When in use, the electrically encapsulated rollers and the conveyor belt 4 are in contact and generate friction, which can play the role of auxiliary driving or braking. By adjusting the relative movement of the adjusting nut 336 and the screw rod, the clamping force of the upper auxiliary roller 321 and the lower auxiliary roller 322 on the conveyor belt 4 can be controlled through the force transmission of the connecting rods in the connecting device 33. When the adjusting nut 336 is rotated clockwise, the clamping force increases, and when the adjusting nut 336 is rotated counterclockwise, the clamping force decreases. The connecting device 33 with the tightening function arranged on both sides of the third roller 3 not only can adjust the clamping force, but also can ensure the force balance of the conveyor belt 4.

[0027] In the present embodiment, the upper auxiliary idler 321 and the lower auxiliary idler 322 can be controlled to rotate forward or reverse by the control system. The clamping force of the upper auxiliary idler 321 and the lower auxiliary idler 322 on the conveyor belt 4 can be converted into friction force. When the linear speed direction of the upper and lower auxiliary idlers is opposite to the running direction of the conveyor belt, the friction force direction between the upper and lower auxiliary idlers and the conveyor belt is the same as the running direction of the conveyor belt, at this time the idler group has a driving function; when the linear speed direction of the upper and lower auxiliary idlers is consistent with the running direction of the conveyor belt, the friction force direction between the upper and lower auxiliary idlers and the conveyor belt is opposite to the running direction of the conveyor belt, at this time the idler group has a braking function. That is, by changing the rotation direction of the upper auxiliary idler 321 and the lower auxiliary idler 322 through the control system, the friction force direction of the upper auxiliary idler 321 and the lower auxiliary idler 322 on the conveyor belt 4 is changed, thereby achieving the function of auxiliary driving or braking. By continuously arranging multiple groups of third idler groups 3, the driving force or braking force can be multiplied.

[0028] In actual use, the conveyor can be arranged with multiple groups of third idler groups 3 at multiple points along the line, or can be arranged with multiple groups of third idler groups 3 at multiple points continuously, or can be arranged with first idler groups 1 or second idler groups 2 at intervals, or can be arranged with first idler groups 1 and second idler groups 2 continuously to form multiple groups of third idler groups 3 distributed at multiple points. The multi-point distributed auxiliary driving or braking function of the belt conveyor can be realized.

[0029] In the present embodiment, the belt conveyor can adopt a combination of idler groups, including first idler groups 1, second idler groups 2 and third idler groups 3, wherein the third idler groups 3 are the aforementioned idler groups, wherein the first idler groups 1 are provided with a groove angle α, the second idler groups 2 are provided with a groove angle β, and the third idler groups 3 are provided with a groove angle γ, wherein γ < β < α. The first idler groups 1 are used to bear the weight of the conveyor belt and the material. Figure 3The second roller group 2 is also provided with a baffle roller on both sides, so the second roller group 2 not only has the function of bearing the weight of the conveyor belt and the material, but also has the function of preventing the conveyor belt from deviating. In actual use, the first roller group 1, the second roller group 2 and the third roller group 3 are sequentially installed on the middle frame of the conveyor. The first roller group 1, the second roller group 2 and the third roller group 3 are one or more groups. That is, the first roller group 1, the second roller group 2 and the third roller group 3 are sequentially combined, and the groove angles of the first roller group 1, the second roller group 2 and the third roller group 3 gradually decrease, which can reduce the damage of the conveyor belt 4 and prolong the service life of the conveyor belt 4. In actual use, the above-mentioned roller group combination is arranged at multiple points along the belt conveyor, and the steering of the upper auxiliary roller 321 and the lower auxiliary roller 322 in the third roller group 3 is controlled according to the need of braking or driving, so as to achieve the purpose of auxiliary braking or auxiliary driving.

[0030] In the embodiment, the belt conveyor can adopt a roller group combination, which includes a first roller group 1, a second roller group 2 and a third roller group 3. The third roller group 3 is the aforementioned roller group. The first roller group 1 is provided with a groove angle α, the second roller group 2 is provided with a groove angle β, and the third roller group 3 is provided with a groove angle γ, wherein γ < β < α. The first roller group 1 is used to bear the weight of the conveyor belt and the material. Figure 3 The second roller group 2 is also provided with a baffle roller on both sides, so the second roller group 2 not only has the function of bearing the weight of the conveyor belt and the material, but also has the function of preventing the conveyor belt from deviating. In actual use, the first roller group 1, the second roller group 2 and the third roller group 3 are sequentially installed on the middle frame of the conveyor. The first roller group 1, the second roller group 2 and the third roller group 3 are one or more groups. That is, the first roller group 1, the second roller group 2 and the third roller group 3 are sequentially combined, and the groove angles of the first roller group 1, the second roller group 2 and the third roller group 3 gradually decrease, which can reduce the damage of the conveyor belt 4 and prolong the service life of the conveyor belt 4. In actual use, the above-mentioned roller group combination is arranged at multiple points along the belt conveyor, and the steering of the upper auxiliary roller 321 and the lower auxiliary roller 322 in the third roller group 3 is controlled according to the need of braking or driving, so as to achieve the purpose of auxiliary braking or auxiliary driving.

[0031] Compared with the prior art, the present application has the following beneficial effects:

[0032] 1) The present application designs a roller group, which has the functions of auxiliary driving or braking. According to the need of braking or driving, the steering of the upper auxiliary roller and the lower auxiliary roller in the third roller group is controlled, so as to achieve the purpose of auxiliary braking or auxiliary driving.

[0033] 2) The first roller group, the second roller group and the third roller group are combined, and the combination is arranged at multiple points along the belt conveyor, so that the driving or braking tension of the conveyor belt can be effectively reduced, the selection of the conveyor belt and the selection of the centralized driving or braking device can be effectively reduced in design, and the overall investment of the belt conveyor is reduced.

[0034] 3) The first roller group, the second roller group and the third roller group are designed with gradually reduced groove angles, the conveyor belt can smoothly transit through the gradually reduced groove angles, the breakage of the conveyor belt is reduced, and the service life of the conveyor belt is increased.

[0035] 4) The turning of the electric rubber-coated roller, namely the upper auxiliary roller and the lower auxiliary roller, is controlled, so that the belt conveyor is not only provided with auxiliary driving effect, but also provided with auxiliary braking effect during braking.

[0036] The embodiments in the above examples can be further combined or replaced, and the examples only describe the preferred embodiments of the present application, and do not limit the concept and scope of the present application. Various changes and improvements to the technical solutions of the present application made by the skilled in the art without departing from the design idea of the present application all belong to the protection scope of the present application.

Claims

1. A roller assembly, comprising a control system and a roller assembly body, for assisting braking or driving, characterized in that: The roller group body includes a roller frame and an auxiliary roller group arranged on the roller frame, wherein the auxiliary roller group is arranged on the roller frame through a connecting device; The connecting device includes a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod; wherein, One end of the first connecting rod is connected to the roller frame, and the other end is hinged to the second connecting rod; One end of the second connecting rod is hinged to the first connecting rod, and the other end is hinged to the third connecting rod; One end of the third connecting rod is hinged to the second connecting rod, and the other end is hinged to the fourth connecting rod; One end of the fourth connecting rod is connected to the roller frame, and the other end is hinged to the third connecting rod; One end of the fifth connecting rod is connected to the roller frame through an adjusting nut, and the other end is hinged to the second connecting rod and the third connecting rod; the fifth connecting rod is a screw rod, and the adjusting nut is used to adjust the forward and backward movement of the fifth screw rod; There are two groups of auxiliary rollers, which are respectively arranged on both sides of the roller frame through connecting devices. Each group of auxiliary rollers includes an upper auxiliary roller and a lower auxiliary roller. One end of the upper auxiliary roller is connected to the end of the first connecting rod, and one end of the lower auxiliary roller is connected to one end of the fourth connecting rod. The conveyor belt is clamped between the upper auxiliary roller and the lower auxiliary roller.

2. The roller assembly according to claim 1, characterized in that: The upper auxiliary roller and the lower auxiliary roller can be controlled to rotate forward or reverse.

3. A roller assembly, comprising a first roller assembly, a second roller assembly, and a third roller assembly, wherein the third roller assembly is the roller assembly according to any one of claims 1 to 2, characterized in that: The first roller group is provided with a groove angle α, the second roller group is provided with a groove angle β, and the third roller group is provided with a groove angle γ, wherein γ<β<α.

4. A belt conveyor, comprising the roller assembly as claimed in claim 3, wherein the first roller assembly, the second roller assembly and the third roller assembly are sequentially installed along the conveyor.

5. A conveyor according to claim 4, characterized in that: The first roller group, the second roller group and the third roller group are one group or multiple groups.

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