Belt tensioning mechanism and belt conveyor

Abstract

The utility model provides a belt tensioning mechanism and a belt conveyor, and relates to the technical field of belt conveying. The belt tensioning mechanism comprises a fixing base, a mounting base, a tensioning auxiliary wheel, an elastic piece and a connecting piece, the fixing base is used for being fixed to an external fixing object, the connecting piece is fixedly connected with the mounting base, the connecting piece is movably connected with the fixing base, the tensioning auxiliary wheel is arranged on the mounting base and used for allowing a belt to be wound, and the elastic piece is arranged on the mounting base. The elastic piece is arranged between the fixing base and the connecting piece, the elastic piece is used for generating elastic deformation when the connecting piece moves relative to the fixing base, and a good tensioning effect can be achieved when the position of the belt changes.

Description

Technical Field

[0001] The present application relates to the technical field of belt conveying, and more particularly, to a belt tensioning mechanism and a belt conveyor. Background Art

[0002] Belt conveying is one of the commonly used conveying methods at present. When a belt conveyor is working normally, the belt must have a certain tension, and the device providing this tension is a tensioning device.

[0003] The existing tensioning device adjusts the position of the tensioning device through bolts, and then adjusts the belt tension. After adjusting the bolts, the position of the tensioning device is fixed. However, during the operation of the belt conveyor, the position of the belt may change. At this time, the tensioning device cannot achieve an optimal tensioning effect. Utility Model Content

[0004] The objectives of the present application include, for example, providing a belt tensioning mechanism and a belt conveyor that can achieve an optimal tensioning effect when the position of the belt changes.

[0005] The embodiments of the present application can be implemented as follows:

[0006] The embodiments of the present application provide a belt tensioning mechanism, which includes a fixed seat, a mounting seat, a tensioning auxiliary wheel, an elastic member, and a connecting member. The fixed seat is used to be fixed to an external fixed object. The connecting member is fixedly connected to the mounting seat and is movably connected to the fixed seat. The tensioning auxiliary wheel is disposed on the mounting seat and is used for the belt to wind around. The elastic member is disposed on the fixed seat and is used to generate elastic deformation when the connecting member moves relative to the fixed seat.

[0007] When the belt presses the tensioning auxiliary wheel, the tensioning auxiliary wheel moves relative to the fixed seat, and the elastic member generates elastic deformation during this process to consume this part of the pressing force. When the belt relaxes the tensioning auxiliary wheel, the elastic force of the elastic member itself pushes the tensioning auxiliary wheel to move relative to the fixed seat, so that the tensioning auxiliary wheel tightens the belt again, realizing the adaptive adjustment of the belt tension.

[0008] Optionally, the connecting member includes a connecting rod and a connecting block. One end of the connecting rod is connected to the mounting seat, the other end of the connecting rod is connected to the connecting block, the connecting rod is slidably connected to the fixed seat, and the elastic member is used to generate elastic deformation when the connecting rod slides relative to the fixed seat. Among them, the sliding direction of the connecting rod is the length direction of the connecting rod.

[0009] When the belt presses against the tensioning auxiliary wheel, the tensioning auxiliary wheel moves relative to the fixed seat, causing the connecting block to act on the elastic member. The elastic member undergoes elastic deformation during this process to consume this part of the pressing force. When the belt relaxes the tensioning auxiliary wheel, the elastic force of the elastic member itself can push the connecting block, and then cause the connecting block, connecting rod, mounting seat, and tensioning auxiliary wheel to all move relative to the fixed seat, so that the tensioning auxiliary wheel can tension the belt again, realizing the adaptive adjustment of the belt tension.

[0010] Optionally, the belt tensioning mechanism further includes a screw. The head of the screw passes through the connecting block and is connected to the fixed seat. The elastic member is a spring, and the spring is sleeved on the screw and is located between the tail of the screw and the connecting block.

[0011] Before the belt conveyor operates, by rotating the screw, the tensioning auxiliary wheel, connecting rod, connecting block, and mounting seat are simultaneously moved relative to the fixed seat, thereby adjusting the belt tension.

[0012] Optionally, abutting rings are provided on both the screw and the connecting block. Annular limiting portions are provided on both of the abutting rings, and the annular limiting portions on both of the abutting rings respectively extend into the spring through both ends of the spring.

[0013] The two annular limiting portions respectively extend into the spring through both ends of the spring to limit the spring, making it difficult for the spring to move radially along the screw and improving the stability of the spring.

[0014] Optionally, mounting pieces are provided on the mounting seat. The connecting rod passes through the mounting pieces. Bolts are provided on the mounting pieces. Abutting pieces and nuts are sleeved on the bolts. The nuts cooperate with the bolts, and the nuts are used to press the abutting pieces against the mounting pieces so that the abutting pieces press the connecting rod tightly against the mounting seat.

[0015] When the nut is turned to move the nut towards the mounting piece, the nut can press the abutting piece, and then the abutting piece presses the connecting rod tightly against the mounting piece, and the connecting rod is relatively fixed to the mounting piece.

[0016] Optionally, notches are provided on the abutting pieces, and the connecting rod is clamped in the notches.

[0017] The abutting piece presses the connecting rod tightly against the mounting piece. At the same time, since the connecting rod is clamped in the notch, the connecting rod is limited.

[0018] Optionally, the number of the connecting rods is two. Both of the two connecting rods are connected to the mounting seat, both of the two connecting rods are connected to the connecting block, and both of the two connecting rods are slidably connected to the fixed seat.

[0019] By sliding both connecting rods on the fixed seat, the stability of the tensioning auxiliary wheel during movement can be improved.

[0020] Optionally, the fixed seat includes a plurality of fixing pieces, the connecting member is movably connected to the plurality of fixing pieces at the same time, and the elastic member is used to generate elastic deformation when the connecting member moves relative to the fixing pieces.

[0021] By providing a plurality of fixing pieces and passing the connecting rod through the plurality of fixing pieces at the same time, the stability of the connecting rod is better when the connecting rod moves relative to the fixing pieces.

[0022] Optionally, the tensioning auxiliary wheel is provided with an annular groove along its circumferential direction, and the annular groove is used to cooperate with the protrusions on the belt.

[0023] The annular groove on the tensioning auxiliary wheel cooperates with the protrusions on the belt, which can prevent the belt from running off track to a certain extent.

[0024] The present application also provides a belt conveyor, including the belt tensioning mechanism. The technical effects of this belt conveyor are roughly the same as those of the belt tensioning mechanism, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic diagram of the belt tensioning mechanism in the embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of the partial structure of the belt tensioning mechanism in the embodiment of the present application Figure 1 ;

[0028] Figure 3 It is a schematic diagram of the partial structure of the belt tensioning mechanism in the embodiment of the present application Figure 2 。

[0029] Reference Signs: 100 - fixed seat; 200 - mounting seat; 210 - end plate; 220 - side plate; 230 - mounting piece; 231 - bolt; 232 - abutting piece; 2321 - notch; 233 - nut; 300 - tensioning auxiliary wheel; 310 - annular groove; 400 - elastic member; 500 - connecting member; 510 - connecting rod; 520 - connecting block; 600 - screw rod; 700 - abutting ring; 710 - annular limiting portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. The components of the embodiments of this application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts fall within the scope of protection of this application.

[0032] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of this application, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product is normally placed, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to this application.

[0034] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0035] It should be noted that, without conflict, the features in the embodiments of this application can be combined with each other.

[0036] The inventors of this application found that the existing tensioning device adjusts the position of the tensioning device through bolts, and then adjusts the tension of the belt. After adjusting the bolts, the position of the tensioning device is fixed, while the tension of the belt may change during the operation of the belt conveyor. At this time, the tensioning device cannot achieve an optimal tensioning effect. The embodiments of this application provide a belt tensioning mechanism, which is at least used to solve the above technical problems.

[0037] Please refer to Figures 1 - 3, the belt tensioning mechanism provided by the embodiments of the present application includes a fixed seat 100, a mounting seat 200, a tensioning auxiliary wheel 300, an elastic member 400, and a connecting member 500. The fixed seat 100 is used to be fixed to an external fixed object. The connecting member 500 is fixedly connected to the mounting seat 200 and is movably connected to the fixed seat 100. The tensioning auxiliary wheel 300 is disposed on the mounting seat 200 and is used for the belt to be wound around. The elastic member 400 is disposed on the fixed seat 100 and is used to generate elastic deformation when the connecting member 500 moves relative to the fixed seat 100.

[0038] In this embodiment, the external fixed object is the chassis of the belt conveyor. Of course, in other embodiments, the external fixed object can also be the ground, a wall surface, or other fixed frames, which is not limited herein.

[0039] The connecting member 500 is fixedly connected to the mounting seat 200 and is movably connected to the fixed seat 100, so that the connecting member 500 and the mounting seat 200 can move relative to the fixed seat 100 simultaneously; the tensioning auxiliary wheel 300 is rotatably connected to the mounting seat 200, and the number of the tensioning auxiliary wheels 300 can be determined according to the actual working conditions.

[0040] When the position of the belt changes, the belt will squeeze or relax the tensioning auxiliary wheel 300. When the belt squeezes the tensioning auxiliary wheel 300, the tensioning auxiliary wheel 300, the connecting member 500, and the mounting seat 200 can move relative to the fixed seat 100 simultaneously, and the elastic member 400 generates elastic deformation during this process to consume this part of the squeezing force; when the belt relaxes the tensioning auxiliary wheel 300, the elastic force of the elastic member 400 itself can push the tensioning auxiliary wheel 300, the connecting member 500, and the mounting seat 200 to move relative to the fixed seat 100 simultaneously, so that the tensioning auxiliary wheel 300 can tension the belt again, realizing the adaptive adjustment of the belt tension.

[0041] In this embodiment, the connecting member 500 includes a connecting rod 510 and a connecting block 520. One end of the connecting rod 510 is connected to the mounting seat 200, the other end of the connecting rod 510 is connected to the connecting block 520, the connecting rod 510 is slidably connected to the fixed seat 100, and the elastic member 400 is used to generate elastic deformation when the connecting rod 510 slides relative to the fixed seat 100. Among them, the sliding direction of the connecting rod 510 is the length direction of the connecting rod 510.

[0042] The mounting seat 200 includes end plates 210 and two side plates 220 connected to both ends of the end plates 210. Both side plates 220 are perpendicular to the end plates 210; the length direction of the connecting rod 510 is consistent with the extending direction of the side plates 220. One end of the connecting rod 510 passes through the end plate 210 and is connected to the side plate 220, and the other end of the connecting rod 510 is connected to the connecting block 520.

[0043] When the belt presses against the tensioning auxiliary wheel 300, the tensioning auxiliary wheel 300, the connecting rod 510, the connecting block 520 and the mounting seat 200 can move relative to the fixed seat 100 simultaneously. The elastic member 400 generates elastic deformation during this process to consume this part of the pressing force. When the belt relaxes the tensioning auxiliary wheel 300, the elastic force of the elastic member 400 itself can push the tensioning auxiliary wheel 300, the connecting rod 510, the connecting block 520 and the mounting seat 200 to move relative to the fixed seat 100 simultaneously, so that the tensioning auxiliary wheel 300 can tension the belt again, realizing the adaptive adjustment of the belt tension.

[0044] In this embodiment, the belt tensioning mechanism further includes a screw 600. The head of the screw 600 passes through the connecting block 520 and is connected to the fixed seat 100. The elastic member 400 is a spring, and the spring is sleeved on the screw 600 and is located between the tail of the screw 600 and the connecting block 520.

[0045] A through hole for the screw 600 to pass through is formed in the connecting block 520. The head of the screw 600 passes through the through hole in the connecting block 520 and is threadedly connected to the fixed seat 100. Before the belt conveyor runs, the tensioning auxiliary wheel 300, the connecting rod 510, the connecting block 520 and the mounting seat 200 can be driven to move relative to the fixed seat 100 simultaneously by rotating the screw 600, thereby adjusting the belt tension.

[0046] When the belt conveyor is running, the position of the belt changes, causing the belt to press against the tensioning auxiliary wheel 300. The tensioning auxiliary wheel 300, the connecting rod 510, the connecting block 520 and the mounting seat 200 can move relative to the fixed seat 100 simultaneously, and the spring generates compressive deformation to consume this part of the pressing force. Or, the position of the belt changes, causing the belt to relax the tensioning auxiliary wheel 300, and the spring generates tensile deformation to push the tensioning auxiliary wheel 300, the connecting rod 510, the connecting block 520 and the mounting seat 200 to move relative to the fixed seat 100 simultaneously, so that the tensioning auxiliary wheel 300 can tension the belt again, realizing the adaptive adjustment of the belt tension.

[0047] In this embodiment, abutting rings 700 are provided on both the screw 600 and the connecting block 520. Annular limiting portions 710 are provided on both abutting rings 700, and the annular limiting portions 710 on the two abutting rings 700 extend into the spring through the two ends of the spring respectively.

[0048] The annular limiting portion 710 protrudes from the abutting ring 700, and the annular limiting portion 710 coincides with the central axis of the abutting ring 700. The annular limiting portions 710 on the two abutting rings 700 are arranged oppositely, and the two annular limiting portions 710 extend into the spring through the two ends of the spring respectively to limit the spring, so that the spring is not easy to move radially along the screw 600, improving the stability of the spring.

[0049] In this embodiment, an installation piece 230 is provided on the mounting base 200. The connecting rod 510 passes through the installation piece 230. A bolt 231 is provided on the installation piece 230. A contact piece 232 and a nut 233 are sleeved on the bolt 231. The nut 233 cooperates with the bolt 231, and the nut 233 is used to squeeze the contact piece 232 towards the installation piece 230, so that the contact piece 232 presses the connecting rod 510 tightly against the mounting base 200.

[0050] Both ends of the installation piece 230 are fixedly connected to the two side plates 220 respectively, and the installation piece 230 is arranged parallel to the end plate 210. The connecting rod 510 passes through the end plate 210 and then passes through the installation piece 230. The length direction of the bolt 231 is consistent with the length direction of the connecting rod 510. When the nut 233 is turned to move the nut 233 towards the installation piece 230, the nut 233 can squeeze the contact piece 232, so that the contact piece 232 presses the connecting rod 510 tightly against the installation piece 230, and the connecting rod 510 is relatively fixed to the installation piece 230.

[0051] In this embodiment, a notch 2321 is formed on the contact piece 232, and the connecting rod 510 is clamped in the notch 2321.

[0052] When the nut 233 is turned to move the nut 233 towards the installation piece 230, the nut 233 can squeeze the contact piece 232, so that the contact piece 232 presses the connecting rod 510 tightly against the installation piece 230. At the same time, since the connecting rod 510 is clamped in the notch 2321, the connecting rod 510 is limited.

[0053] In this embodiment, the number of the connecting rods 510 is two. The two connecting rods 510 are both connected to the mounting base 200, the two connecting rods 510 are both connected to the connecting block 520, and the two connecting rods 510 are both slidably connected to the fixed seat 100.

[0054] The two connecting rods 510 are both slidably connected to the fixed seat 100. The two connecting rods 510 both pass through the end plate 210 and then pass through the installation piece 230. Two notches 2321 are formed on the contact piece 232, and the two connecting rods 510 are respectively clamped in the two notches 2321.

[0055] By making the two connecting rods 510 both slidably connected to the fixed seat 100, the stability of the tensioning auxiliary wheel 300 when moving can be improved; when the nut 233 is turned to move the nut 233 towards the installation piece 230, the nut 233 can squeeze the contact piece 232, so that the contact piece 232 presses the two connecting rods 510 tightly against the installation piece 230 at the same time.

[0056] In other embodiments, the number of the connecting rods 510 can also be more than three, which is not limited herein.

[0057] In this embodiment, the tensioning auxiliary wheel 300 is provided with an annular groove 310 along its circumferential direction, and the annular groove 310 is used to cooperate with the protrusions on the belt.

[0058] The annular groove 310 is opened in the middle of the tensioning auxiliary wheel 300, and the annular groove 310 is used to cooperate with the protrusions on the belt, which can prevent the belt from running off to a certain extent. It can be understood that the number of the annular grooves 310 is the same as the number of the protrusions on the belt. When the number of the protrusions on the belt is multiple, the number of the annular grooves 310 is also multiple, and the multiple annular grooves 310 cooperate with the multiple protrusions one by one.

[0059] In this embodiment, the fixing seat 100 includes a plurality of fixing pieces, the connecting piece 500 is simultaneously movably connected to the plurality of fixing pieces, and the elastic member 400 is used to generate elastic deformation when the connecting piece 500 moves relative to the fixing pieces.

[0060] The plurality of fixing pieces are arranged at intervals, the connecting rod 510 is simultaneously inserted into the plurality of fixing pieces and is slidably connected to the plurality of fixing pieces, and the spring generates elastic deformation when the connecting rod 510 moves relative to the fixing pieces.

[0061] By arranging the plurality of fixing pieces at intervals and enabling the connecting rod 510 to be simultaneously inserted into the plurality of fixing pieces, the stability of the connecting rod 510 is better when the connecting rod 510 moves relative to the fixing pieces.

[0062] The embodiment of the present application further provides a belt conveyor, which includes a belt and the above-mentioned belt tensioning mechanism, and the belt is wound around the tensioning auxiliary wheel 300.

[0063] In summary, the embodiment of the present application provides a belt tensioning mechanism and a belt conveyor. When the position change of the belt causes the tensioning auxiliary wheel 300 to be squeezed, the tensioning auxiliary wheel 300, the connecting rod 510, the connecting block 520 and the mounting seat 200 can simultaneously move relative to the fixing pieces, and the spring generates compressive deformation to consume this part of the extrusion force; when the position change of the belt causes the tensioning auxiliary wheel 300 to be relaxed, the spring generates tensile deformation to push the tensioning auxiliary wheel 300, the connecting rod 510, the connecting block 520 and the mounting seat 200 to simultaneously move relative to the fixing pieces, so that the tensioning auxiliary wheel 300 tensions the belt again, realizing the adaptive adjustment of the belt tensioning.

[0064] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A belt tensioning mechanism, characterized in that, It includes a fixed seat (100), a mounting seat (200), a tensioning auxiliary wheel (300), an elastic member (400) and a connecting member (500). The fixed seat (100) is used to be fixed to an external fixed object. The connecting member (500) is fixedly connected to the mounting seat (200), and the connecting member (500) is movably connected to the fixed seat (100). The tensioning auxiliary wheel (300) is arranged on the mounting seat (200) and is used for a belt to be wound around. The elastic member (400) is arranged on the fixed seat (100), and the elastic member (400) is used to generate elastic deformation when the connecting member (500) moves relative to the fixed seat (100).

2. The belt tensioning mechanism according to claim 1, wherein The connecting member (500) includes a connecting rod (510) and a connecting block (520). One end of the connecting rod (510) is connected to the mounting seat (200), the other end of the connecting rod (510) is connected to the connecting block (520), the connecting rod (510) is slidably connected to the fixed seat (100), and the elastic member (400) is used to generate elastic deformation when the connecting rod (510) slides relative to the fixed seat (100). Wherein, the sliding direction of the connecting rod (510) is the length direction of the connecting rod (510).

3. The belt tensioning mechanism according to claim 2, characterized in that, The belt tensioning mechanism further includes a screw rod (600). The head of the screw rod (600) passes through the connecting block (520) and is connected to the fixed seat (100); the elastic member (400) is a spring, and the spring is sleeved on the screw rod (600) and is located between the tail of the screw rod (600) and the connecting block (520).

4. The belt tensioning mechanism according to claim 3, wherein, Both the screw rod (600) and the connecting block (520) are provided with abutting rings (700). Both of the two abutting rings (700) are provided with annular limiting portions (710). The annular limiting portions (710) on the two abutting rings (700) respectively extend into the spring through both ends of the spring.

5. The belt tensioning mechanism according to claim 2, characterized in that, An installation piece (230) is arranged on the mounting seat (200). The connecting rod (510) passes through the installation piece (230). A bolt (231) is arranged on the installation piece (230). Abutting pieces (232) and nuts (233) are sleeved on the bolt (231). The nut (233) cooperates with the bolt (231), and the nut (233) is used to squeeze the abutting piece (232) towards the installation piece (230) so that the abutting piece (232) presses the connecting rod (510) tightly against the mounting seat (200).

6. The belt tensioning mechanism according to claim 5, wherein, A notch (2321) is formed on the abutting piece (232), and the connecting rod (510) is clamped in the notch (2321).

7. The belt tensioning mechanism according to claim 2, wherein The number of the connecting rods (510) is two. Both of the two connecting rods (510) are connected to the mounting seat (200), both of the two connecting rods (510) are connected to the connecting block (520), and both of the two connecting rods (510) are slidably connected to the fixed seat (100).

8. The belt tensioning mechanism according to claim 1, characterized in that The fixing base (100) includes a plurality of fixing pieces, the connecting piece (500) is movably connected to the plurality of fixing pieces at the same time, and the elastic member (400) is configured to generate elastic deformation when the connecting piece (500) moves relative to the fixing pieces.

9. The belt tensioning mechanism according to claim 1, characterized in that The tensioning auxiliary wheel (300) is provided with an annular groove (310) along its circumferential direction, and the annular groove (310) is used to cooperate with the protrusions on the belt.

10. A belt conveyor, characterized in that, It includes the belt tensioning mechanism according to any one of claims 1-9.

Images