Guiding tool and tensioning device

Abstract

The utility model discloses a guiding tool and a tensioning device. A guiding prism adjacent to a balance weight box body is arranged, and the axial direction of the guiding prism extends in the lifting direction of the balance weight box body. At least two supporting assemblies fixedly connected with the balance weight box body are additionally arranged, the supporting assemblies are rotatably connected with the corresponding guide rollers, and the at least two guide rollers correspond to different side faces of the guide prism respectively. The supporting assembly and the guide roller move along with the balance weight box body. When the balance weight box deviates, the guide prism can limit the balance weight box, the balance weight box can return to a normal lifting route through the guide rollers which are in rolling fit with the different side faces of the guide prism in the axial direction of the guide prism, the probability of deviation and collision is reduced, the service life of the guide tool and the service life of the belt conveyor are prolonged, and the guide rollers and the guide prism are in rolling fit, so that the balance weight box is not prone to deviation. Therefore, friction damage is small, and the service life of the whole guiding tool can be prolonged. The technical problem that the working efficiency and the service life of the belt conveyor are affected is solved to a certain extent.

Description

Technical Field

[0001] The present application belongs to the technical field of belt conveyors, and in particular relates to a guiding tool and a tensioning device. Background Art

[0002] Belt conveyors are commonly used conveying machinery with the advantages of strong conveying capacity, stable conveying, and simple structure. The working principle of a belt conveyor is that the conveyor belt passes through the head roller, redirection roller, drive roller, etc. to form a ring, and the conveyor belt is supported by rollers. The belt conveyor may also include a tensioning device, which provides a certain tensioning force for the conveyor belt to ensure stable conveying of the conveyor belt.

[0003] At present, the tensioning device of the belt conveyor includes a weight box and a weight wheel. The weight wheel is rotatably connected to the weight box. When the conveyor belt passes around the weight wheel, the overall weight of the weight box changes, which can change the tension of the conveyor belt passing around the weight wheel. However, the weight is easy to deviate when moving, which affects the working efficiency of the belt conveyor and is prone to accidents such as collision with the weight box, which affects the service life of the belt. Utility Model Content

[0004] The present application aims to solve the technical problem that the working efficiency and service life of the belt conveyor are affected to a certain extent. To this end, the present application provides a guide tool and a tensioning device.

[0005] A guiding tool provided in an embodiment of the present application is used to guide a weight box of a belt conveyor, comprising:

[0006] A guide prism is adjacent to the weight box, and the axial direction of the guide prism extends along the lifting direction of the weight box;

[0007] At least two support assemblies fixedly connected to the weight box;

[0008] The guide rollers are rotatably connected to the corresponding support components, and at least two of the guide rollers correspond to different sides of the guide prism respectively and are used for rolling cooperation with the guide prism along the axial direction.

[0009] In some embodiments, the guide tool includes an even number of guide rollers, and every two guide rollers act on two different side surfaces in pairs, respectively, and at least two guide rollers acting on the same side surface are spaced apart along the axial direction.

[0010] In some embodiments, the guide tool includes at least two guide prisms that are spaced apart from each other and extend axially in the same direction, and the weight box is located between the at least two guide prisms.

[0011] In some embodiments, the guide roller includes a roller body and a wear-resistant layer disposed on a peripheral wall of the roller body.

[0012] In some embodiments, a millimeter-level spacing is provided between the guide roller and the guide prism.

[0013] In some embodiments, the support assembly comprises:

[0014] A support member, fixedly connected to the weight box;

[0015] A mounting member, detachably connected to the supporting member;

[0016] The matching piece is detachably connected to the mounting piece and matches with the mounting piece to mount the guide roller.

[0017] In some embodiments, the support member is provided with a through hole, and the mounting member can movably pass through the through hole. The support assembly also includes a fastener threadedly sleeved on the mounting member, and the fastener abuts against the support member.

[0018] In some embodiments, the mounting member is provided with a receiving groove, the mating member is detachably connected to the mounting member, the receiving groove may be located between at least two of the mating members, and both of them form mounting holes connected to the receiving grooves with the mounting member, and both ends of the guide roller may be rotatably inserted into the mounting holes.

[0019] In some embodiments, the mounting member includes a U-shaped portion and a rod portion, the rod portion is connected to the U-shaped portion, the inner peripheral wall of the U-shaped portion is configured as the receiving groove, the rod portion is inserted into the through hole, and is threadedly connected to the fastener.

[0020] The present application provides a tensioning device, comprising:

[0021] Weight box;

[0022] A weight wheel rotatably arranged in the weight box, the weight wheel being used to bypass the conveyor belt of the belt conveyor;

[0023] A counterweight is placed in the weight box;

[0024] Guiding tool as described above.

[0025] Advantageous effects provided by one or more embodiments of the present application:

[0026] In the belt conveyor, the weight box and the weight wheel can play a tensioning role on the conveyor belt. The weight box and the weight wheel change in mass, and if they rise and fall along the gravity direction, can change the tensioning force applied to the conveyor belt. A guide prism is set adjacent to the weight box, and the axial direction extends along the lifting direction of the weight box. The guide prism can limit and guide the weight box, reduce the probability of the weight box running off, and improve the working efficiency of the belt conveyor. At the same time, at least two support components fixedly connected to the weight box are added, and a corresponding guide roller is rotatably connected to each support component, and at least two guide rollers correspond to different sides of the guide prism respectively. If the weight box moves, the guide rollers connected to the weight box through the support components will also move with the weight box. If the weight box deviates, on the one hand, the guide prism can limit the weight box, and on the other hand, along the axial direction of the guide prism (that is, the lifting direction of the weight box), the guide rollers that can cooperate with different sides of the guide prism can limit the weight box in the width direction of the guide prism, and through the cooperation with the guide prism, the weight box can move on the normal lifting route, reducing the probability of the weight box deviating, improving the working efficiency of the belt conveyor, and at the same time It can also reduce the collision accident caused by the weight box deviating from the lifting route, and increase the service life of the guide tool and the belt conveyor. The rolling cooperation between the guide roller and the guide prism will reduce the friction damage, which is also beneficial to increase the overall service life of the guide tool. To a certain extent, it solves the technical problems that affect the working efficiency and service life of the belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of the structure of the guide tool in some embodiments or certain embodiments of the present application is shown.

[0029] Figure 2 A schematic diagram of the structure of the support assembly in some embodiments or certain embodiments of the present application is shown.

[0030] Figure 3 A schematic diagram of the structure of the tensioning device in some embodiments or certain embodiments of the present application is shown.

[0031] Figure numerals: 1. guide prism; 11. side; 2. support assembly; 21. support member; 211. through hole; 22. mounting member; 221. receiving groove; 222. U-shaped portion; 223. rod portion; 23. mating member; 24. fastener; 25. mounting hole; 3. guide roller; 31. roller body; 32. roller head; 10. sinker box; 20. sinker wheel; 30. counterweight; 100. conveyor belt; D. spacing; A. axial direction. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0034] In the present invention, unless otherwise clearly defined and specified, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0037] Figure 1FIG. 1 shows a schematic diagram of the structure of the guide tool in some embodiments or certain embodiments of the present application, referring to FIG. Figure 1 It can be seen that a guiding tool provided in an embodiment of the present application is used to guide the weight box 10 of the belt conveyor, including:

[0038] The guide prism 1 is adjacent to the weight box 10 , and the axial direction A of the guide prism 1 extends along the lifting direction of the weight box 10 .

[0039] At least two support assemblies 2 are fixedly connected to the weight box 10.

[0040] At least two guide rollers 3 are rotatably connected to the corresponding support assembly 2 , and the at least two guide rollers 3 correspond to different side surfaces 11 of the guide prism 1 , respectively, and are used for rolling cooperation with the guide prism 1 along the axial direction A.

[0041] In the belt conveyor, the weight box 10 and the weight wheel 20 can play a tensioning role on the conveyor belt 100. The weight box 10 and the weight wheel 20 change in mass, and if they are lifted and lowered in the direction of gravity, the tensioning force applied to the conveyor belt 100 can be changed. A guide prism 1 is provided adjacent to the weight box 10, and the axial direction A extends along the lifting direction of the weight box 10. The guide prism 1 can limit and guide the weight box 10, reduce the probability of the weight box 10 running off, and improve the working efficiency of the belt conveyor. At the same time, at least two support assemblies 2 fixedly connected to the weight box 10 are added, and a corresponding guide roller 3 is rotatably connected to each support assembly 2, and at least two guide rollers 3 correspond to different side surfaces 11 of the guide prism 1. If the weight box 10 moves, the guide roller 3 connected to the weight box 10 through the support assembly 2 will also move with the weight box 10. If the weight box 10 deviates, on the one hand, the guide prism 1 can limit the weight box 10, and on the other hand, the weight box 10 can be moved along the axial direction A of the guide prism 1 (i.e., the lifting direction of the weight box 10). ), the guide roller 3 that can cooperate with the different side surfaces 11 of the guide prism 1 can limit the weight box 10 on both sides of the width of the guide prism, and through the cooperation with the guide prism 1, the weight box 10 can move on the normal lifting route, reducing the probability of the weight box 10 running off the track, improving the working efficiency of the belt conveyor, and at the same time, it can also reduce the collision accident caused by the weight box 10 deviating from the lifting route, and improve the service life of the guide tool and the belt conveyor. The rolling cooperation between the guide roller 3 and the guide prism 1 will reduce the friction damage, which is also conducive to improving the overall service life of the guide tool. To a certain extent, it solves the technical problem of the working efficiency and service life of the belt conveyor being affected.

[0042] It should be noted that the guide prism 1 is a prism in a geometric sense, and can be a triangular prism, a quadrangular prism, a hexagonal prism, etc., and the present application does not impose any limitation on this. The axial direction A of the guide prism 1 is the direction extending along the prism axis in a geometric sense.

[0043] In some embodiments, the guide tool includes an even number of guide rollers 3, and every two guide rollers 3 act on two different side surfaces 11 in pairs, respectively, and at least two guide rollers 3 acting on the same side surface 11 are spaced apart along the axial direction A.

[0044] There are an even number of guide rollers 3, and every two guide rollers 3 act in pairs on two different side surfaces 11 of the guide prism 1, respectively. Each guide roller 3 can be used to roll with the guide prism 1 along the axial direction A of the guide prism 1, and the force between the guide prism 1 and the guide roller 3 will be relatively balanced, which is conducive to ensuring the stable operation of the weight box 10. At least two rolling-cooperating guide rollers 3 are set on the same side surface 11 of each guide prism 1, and these guide rollers 3 are spaced along the axial direction A of the guide prism 1, which is also conducive to improving the guidance between the weight box 10 and the guide prism 1 and reducing the possibility of deviation and collision of the weight box 10.

[0045] In some embodiments, at least two guide rollers 3 arranged along the guide prism 1 may be distributed at equal intervals, and the distance between the two guide rollers 3 may be 1 meter or set according to requirements. The guiding effect is good.

[0046] In some embodiments, the guide prism 1 may be a quadrangular prism, and the cross-section of the guide prism 1 may be rectangular or square, a side surface 11 of the guide prism 1 may be parallel to and adjacent to a surface of the weight box 10, and an even number of guide rollers 3 may be symmetrically arranged on the surface of the weight box 10 about the symmetry plane of the axial direction A of the guide prism 1, and are respectively located on both sides of the guide prism 1. The two paired guide rollers 3 can be used to roll with the two opposite side surfaces 11 of the quadrangular prism respectively. The guide prism 1 has a better guiding effect on the weight box 10, and the overall space occupied is small, the space utilization rate is high, and it is also easy to install and prepare.

[0047] In some embodiments, the number of guide wheels may be an odd number, which can also guide the guide prism 1 and the weight box 10. There may also be an angle greater than 10° between a side surface 11 of the guide prism 1 and a surface of the weight box 10. This application does not impose any restrictions on this.

[0048] In some embodiments, the guide roller 3 includes a roller body 31 and a wear-resistant layer (not shown in the figure) provided on the peripheral wall of the roller body 31 .

[0049] The addition of the wear-resistant layer can improve the wear resistance of the guide roller 3 and the service life of the guide roller 3, thereby improving the service life of the belt conveyor to which the guide tool is applied.

[0050] In some embodiments, the guide roller 3 may also include roller heads with smaller diameters at both ends of the roller body 31, and the roller heads cooperate with the support assembly 2. The surface of the guide roller 3 may not be provided with a wear-resistant layer, and the surface of the guide roller 3 may also be provided with a rubber buffer layer covering the peripheral wall. The wear-resistant layer may be a wear-resistant polymer layer, and the wear-resistant layer may cover the peripheral wall of the roller body 31. Both can play a role in reducing the deviation of the weight box 10, and both the wear-resistant layer and the rubber buffer layer can increase the service life of the guide tool.

[0051] In some embodiments, a distance D of millimeter level is provided between the guide roller 3 and the guide prism 1 .

[0052] A millimeter-level spacing D is set between the guide roller 3 and the guide prism 1, which can reduce the friction between the guide roller 3 and the guide prism 1 and improve the service life. It can also ensure that when the weight box 10 deviates, the guide roller 3 and the guide prism 1 are in timely contact to ensure the adjustment of the lifting and lowering route of the weight box 10.

[0053] It should be noted that the millimeter-level spacing D is a gap of 0 to 10 mm, which can reduce wear, increase service life, and effectively reduce the possibility of deviation.

[0054] In some embodiments, the guide roller 3 may also be in direct rolling contact with the side surface 11 of the guide prism 1, which is not limited thereto.

[0055] In some embodiments, the guiding tool includes at least two guiding prisms 1 that are spaced apart from each other and whose axial directions A extend in the same direction, and the weight box 10 is located between the at least two guiding prisms 1 .

[0056] The weight box 10 is located between at least two guide prisms 1, which has a better limiting effect on the weight box 10. Each guide prism 1 is provided with a matching guide roller 3, so that the weight box 10 can be guided more effectively, reducing the deviation of the weight box 10 and the collision accidents.

[0057] In some embodiments, the guide roller 3 and the support assembly 2 may be detachably connected, so as to facilitate the disassembly, assembly and replacement of the guide roller 3 .

[0058] In some embodiments, the support assembly 2 and the guide roller 3 may correspond one to one, at least two support assemblies 2 may be respectively disposed on both sides of the guide prism 1 , or the support assembly 2 may span across the guide prism 1 .

[0059] Available here Figure 2 , Figure 2 It shows a schematic diagram of the structure of the support assembly in some embodiments or certain embodiments of the present application, Figure 2 The viewing direction of the support assembly 2 shown in FIG. is a top view. Figure 1The schematic diagram obtained by the support component 2 is shown in Figure 2 The figure also shows the axial direction A of the guide prism 1 (i.e. the lifting direction of the weight box 10). Figure 1 and Figure 2 In some embodiments, the support assembly 2 includes:

[0060] The support member 21 is fixedly connected to the weight box 10 .

[0061] The mounting member 22 is detachably connected to the supporting member 21 .

[0062] The matching piece 23 is detachably connected to the mounting piece 22 and matches with the mounting piece 22 to mount the guide roller 3 .

[0063] The support member 21 is fixedly connected to the weight box 10 as the supporting body, the mounting member 22 is detachably connected to the support member 21, and the mounting member 22 is detachably connected to the matching member 23, and the guide roller 3 is installed together to facilitate the disassembly and assembly of the guide roller 3, and also to facilitate the replacement of components in the support assembly 2, which is beneficial to improve.

[0064] In some embodiments, the support assembly 2 may also only include an integrated structure, and the integrated structure is rollingly connected to the guide roller 3. This application does not limit this.

[0065] In some embodiments, the support member 21 is provided with a through hole 211 , and the connecting portion can movably pass through the through hole 211 . The support assembly 2 further includes a fastener 24 threadedly sleeved on the connecting portion, and the fastener 24 abuts against the support member 21 .

[0066] The distance between the mounting member 22 and the supporting member 21 can be adjusted by the fastener 24, so as to adjust the distance between the guide roller 3 and the guide prism 1 on the mounting member 22, compensate for the gap between the guide roller 3 and the guide prism 1 due to wear, and extend the service life of the supporting assembly 2.

[0067] In some embodiments, the mounting member 22 is provided with a receiving groove 221, the mating member 23 is detachably connected to the mounting member 22, the receiving groove 221 can be located between at least two mating members 23, and each mating member 23 forms a mounting hole 25 with the mounting member 22 that is connected to the receiving groove 221, and both ends of the guide roller 3 can be rotatably inserted into the mounting hole 25.

[0068] The mounting member 22 and the matching member 23 adopt the above structure, and the matching member 23 and the mounting member 22 can be disassembled to maintain or replace the guide roller 3, thereby increasing the service life of the entire guide tool.

[0069] It should be noted that the fitting member 23 and the mounting member 22 form a mounting hole 25, and the fitting member 23 and the mounting member 22 may be provided with grooves respectively, so that the two grooves are relatively closed to form a mounting hole, so as to facilitate the installation of the guide roller 3.

[0070] In some embodiments, the mounting member 22 may include a U-shaped portion 222 and a rod portion 223, one end of the rod portion 223 is connected to the U-shaped portion 222, the inner peripheral wall of the U-shaped portion 222 is configured as a receiving groove 221, and the rod portion 223 can be movably inserted into the through hole 211 and threadedly matched with the fastener 24. The structure of the mounting portion is relatively simple, which is easy to prepare and reduces the preparation cost.

[0071] In some embodiments, the support member 21 may be plate-shaped and may be welded and fixed to the weight box 10. The through hole 211 passes through the support member 21, and one end of the through hole 211 is opposite to one side surface 11 of the guide prism 1. One end of the rod 223 is connected to the bending part of the U-shaped portion 222, and the opening of the U-shaped portion 222 faces the guide prism 1. The fastener 24 may be a nut, etc., and the end surface of the fastener 24 abuts against the support member 21 to fix the mounting member 22. Two fasteners 24 may also be provided, which are respectively threadedly connected to the rod 223 and abut against the two ends of the through hole 211. The fastening effect is good, which is conducive to improving the guiding effect.

[0072] In some embodiments, the fitting 23 may be a strip plate, and may be connected to both sides of the U-shaped portion 222 by studs, pins, bolts, etc., so as to facilitate maintenance and disassembly.

[0073] Figure 3 FIG. 1 shows a schematic diagram of the structure of the tensioning device in some embodiments or certain embodiments of the present application, referring to FIG. Figure 3 It can be seen that, based on the same inventive concept, the embodiment of the present application also provides a tensioning device, including:

[0074] Weight box 10.

[0075] The weight wheel 20 is rotatably arranged in the weight box 10, and the weight wheel 20 is used to bypass the conveyor belt of the belt conveyor.

[0076] The counterweight 30 is placed in the weight box 10 .

[0077] As previous guidance tool.

[0078] The structure of the guide tool and its corresponding technical effects can be referred to above, and will not be described in detail here. Adding the counterweight 30 can facilitate the adjustment of the tension of the belt conveyor.

[0079] In some embodiments, the counterweight 30 may be a counterweight block, a counterweight ball, or a counterweight plate, etc. All of them can play a counterweight role.

[0080] It should be noted that the parallel or perpendicular mentioned in the present application is relative to the concept of absolute parallel or absolute perpendicular in geometry, and a deviation of 0 to 5° is allowed, and the present application does not impose any limitation on this.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0082] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0083] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A guiding tool, characterized in that: Used to guide the weight box of the belt conveyor, including: A guide prism is adjacent to the weight box, and the axial direction of the guide prism extends along the lifting direction of the weight box; At least two support assemblies fixedly connected to the weight box; The guide rollers are rotatably connected to the corresponding support components, and at least two of the guide rollers correspond to different sides of the guide prism respectively and are used for rolling cooperation with the guide prism along the axial direction.

2. The guiding tool according to claim 1, characterized in that The guide tool comprises an even number of guide rollers, and every two guide rollers act on two different side surfaces in pairs, respectively, and at least two guide rollers acting on the same side surface are spaced apart and distributed along the axial direction.

3. The guiding tool according to claim 1, characterized in that The guide roller comprises a roller body and a wear-resistant layer arranged on the peripheral wall of the roller body.

4. The guiding tool according to any one of claims 1 to 3, characterized in that: A millimeter-level spacing is arranged between the guide roller and the guide prism.

5. The guiding tool according to claim 1, characterized in that The guiding tool comprises at least two guiding prisms which are spaced apart from each other and extend axially in the same direction, and the weight box is located between the at least two guiding prisms.

6. The guiding tool according to any one of claims 1 to 3, characterized in that: The support assembly comprises: A support member, fixedly connected to the weight box; A mounting member, detachably connected to the supporting member; The matching piece is detachably connected to the mounting piece and matches with the mounting piece to mount the guide roller.

7. The guiding tool according to claim 6, characterized in that The support member is provided with a through hole, and the mounting member can movably pass through the through hole. The support assembly also includes a fastener threadedly sleeved on the mounting member, and the fastener abuts against the support member.

8. The guiding tool according to claim 7, characterized in that The mounting member is provided with a receiving groove, the mating member is detachably connected to the mounting member, the receiving groove can be located between at least two mating members, the mating members and the mounting member each form a mounting hole connected to the receiving groove, and both ends of the guide roller can be rotatably inserted into the mounting hole.

9. The guiding tool according to claim 8, characterized in that The mounting member includes a U-shaped portion and a rod portion, the rod portion is connected to the U-shaped portion, the inner peripheral wall of the U-shaped portion is configured as the accommodating groove, the rod portion is inserted into the through hole, and is threadedly connected to the fastener.

10. A tensioning device, characterized in that: include: Weight box; A weight wheel rotatably arranged in the weight box, the weight wheel being used to bypass the conveyor belt of the belt conveyor; A counterweight is placed in the weight box; A guiding tool as claimed in any one of claims 1 to 9.

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