Conveyor tensioning device

Abstract

The utility model discloses a conveyor tensioning device which is installed at the position of a chain wheel or a belt wheel at the rear end of a conveyor and comprises two moving frames, a moving block is arranged in each moving frame in a sliding mode, a wheel shaft of the chain wheel or the belt wheel is rotatably connected to a sub-moving block, and the rear sides of the two moving frames are jointly connected through a U-shaped frame. The two moving blocks are connected together through a U-shaped block, a threaded adjusting rod is fixed to the rear side of the U-shaped block, the rear side of the threaded adjusting rod extends out of the U-shaped frame, and limiting nuts are arranged on the adjusting rod and located on the front side and the rear side of the U-shaped frame; the two moving frames are connected through the U-shaped frame, the two moving blocks are connected through the U-shaped block, the two moving frames and the two moving blocks are connected into a whole, only the front-back position of the threaded adjusting rod needs to be adjusted during tensioning adjustment, synchronous adjustment of the moving blocks on the two sides is guaranteed, and the tensioning adjustment efficiency is improved. And movement of the moving blocks on the two sides can be completed only by independently adjusting one threaded adjusting screw rod, and operation is simpler and more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tensioning device, especially a kind of conveyor tensioning device. BACKGROUND

[0002] When setting conveyor, generally set tensioning device, to be able to tighten belt or chain, so that belt and chain can normally run.For shorter belt, such as less than 30 or 40 meters of belt, generally most of the tensioning device is set to the form of tail tension.For the tail tension form conveyor tensioning device, in prior art, as shown in Figure 1 Mainly include two tensioning blocks a, each tensioning block a is movably provided with a moving block b, and belt pulley or sprocket wheel c is rotatably arranged on moving block b.When adjusting sprocket wheel or belt pulley, the positions of two moving blocks b are adjusted respectively, so that the positions of belt pulley and sprocket wheel c can be adjusted, so that belt or chain is tensioned.

[0003] In the actual implementation process, it is found that the conveyor tensioning device similar to the above technical scheme in prior art has room for improvement: because the adjustment structure of two moving blocks is independent, when adjusting, the synchronization of two moving blocks cannot be well maintained, thereby easily causing the inclination of sprocket wheel or belt pulley, and two moving blocks are independently adjusted, which is inconvenient to operate. CONTENT OF UTILITY MODEL

[0004] In view of the deficiencies and shortcomings in prior art, the purpose of the utility model is to provide a kind of conveyor tensioning device, solve the problem that in prior art, when adjusting, the synchronization of two moving blocks cannot be well maintained, thereby easily causing the inclination of sprocket wheel or belt pulley, and the problem that two moving blocks are independently adjusted, which is inconvenient to operate.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a kind of conveyor tensioning device is installed at the sprocket wheel or belt pulley of the rear end of conveyor, including two moving frames, each moving frame is provided with a sliding slot, each sliding slot is slidably provided with a moving block, the axle of sprocket wheel or belt pulley is rotatably connected to the moving block, the both sides of moving frame are provided with fixed plate that can be detachably installed on the support of conveyor, the rear side of two moving frames is connected through a U-shaped U-shaped frame, the rear side of two moving blocks is connected through a detachable U-shaped block by inside position, the rear side of U-shaped block is fixed with a threaded adjusting rod, the rear side of threaded adjusting rod extends out of U-shaped frame, and can slide forward and backward relative to U-shaped frame, the rear end of threaded adjusting rod is fixed with a handle, the adjusting rod is provided with a limiting nut on the front and rear sides of U-shaped frame, the upper end of moving block is provided with an oil filler pipe, the upper end of oil filler pipe is provided with a pipe cap, and the lower end of oil filler pipe extends to the position of axle.

[0006] As a further improvement of the utility model, the inside of the moving block is provided with a rotating hole, the wheel shaft of the chain wheel or the pulley is inserted into the rotating hole and is rotatably connected with the rotating hole, and the bottom of the oiling pipe is communicated with the rotating hole.

[0007] As a further improvement of the utility model, the sliding groove is a rectangular groove, and the moving block is a rectangular block.

[0008] As a further improvement of the utility model, the front side of the two ends of the U-shaped block is fixedly connected with a connecting plate, and the two connecting plates are detachably connected with the two moving blocks through bolts.

[0009] As a further improvement of the utility model, the limiting nut is provided with a wrench rod.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The two moving frames are connected by the U-shaped frame, so that the two moving frames are connected as a whole, and the two moving blocks are also connected as a whole by the U-shaped block, and the rear end of the U-shaped block is fixedly connected with a threaded adjusting rod, the rear end of the threaded adjusting rod penetrates through the U-shaped frame, and the threaded adjusting rod is limited by the fixed nuts on the front and rear sides of the U-shaped frame, so that when tension adjustment is required, the front and rear positions of the threaded adjusting rod only need to be adjusted and fixed by the fixed nuts. The moving frame and the moving block are connected as a whole, so that synchronous adjustment of the two moving blocks can be ensured during adjustment, and the chain wheel or the pulley is prevented from tilting. In addition, the movement of the two moving blocks can be completed by adjusting only one threaded adjusting rod during adjustment, and the operation is more simple and convenient.

[0012] In addition, the oiling pipe is arranged on the moving block, and the pipe cap is arranged on the oiling pipe, so that the chain wheel or the pulley can be lubricated by the oiling pipe, and the friction during rotation of the wheel shaft is reduced.

[0013] 2. The rotating hole is arranged on the moving block, and the wheel shaft of the chain wheel or the pulley is directly rotatably connected with the rotating hole, so that the structure is simple and convenient to maintain.

[0014] 3. The sliding groove is a rectangular groove, and the moving block is a rectangular block, so that the moving block can be conveniently detached, the chain wheel or the pulley can be conveniently pulled out, and the chain wheel and the pulley can be conveniently detached.

[0015] 4. The wrench rod is arranged on the limiting nut, so that the limiting nut can be conveniently adjusted and rotated. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in combination with the drawings:

[0017] Figure 1 This is a schematic diagram of the existing technology;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] In the diagram: 1. Sprocket; 2. Moving frame; 3. Slide groove; 4. Moving block; 5. Fixed plate; 6. U-shaped frame; 7. U-shaped block; 8. Threaded adjusting rod; 9. Handle; 10. Limit nut; 11. Oil filling pipe; 12. Pipe cap; 13. Rotating hole; 14. Connecting plate; 15. Wrench lever. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 2 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0021] For ease of description, the coordinate system is defined as follows: Figure 2 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0022] This utility model discloses a conveyor tensioning device. (Refer to...) Figure 2 A conveyor tensioning device is installed at the rear end of the conveyor at the sprocket 1 or pulley. It includes two movable frames 2, each with a groove 3 and a sliding block 4 slidably mounted within each groove 3. The groove 3 is rectangular, and the sliding block is rectangular. This facilitates the removal of the sliding block, allowing for easy extraction and disassembly of the sprocket 1 or pulley. The axle of the sprocket 1 or pulley is rotatably connected to the sliding block 4. Specifically, each sliding block 4 has a rotating hole 13 on its inner side, into which the axle of the sprocket 1 or pulley is inserted and rotatably connected. The device has a simple structure and is easy to maintain.

[0023] The movable frame 2 is fixedly connected to the fixing plates 5 on both sides. The fixing plates 5 can be detachably installed on the conveyor support by bolts.

[0024] The two movable frames 2 are connected at their rear sides by a U-shaped frame 6. The two movable blocks 4 are detachably connected at their rear inner positions by a U-shaped block 7. Specifically, a connecting plate 14 is fixedly connected to the front of each end of the U-shaped block 7. The two connecting plates 14 are detachably connected to the two movable blocks 4 by bolts. A threaded adjusting rod 8 is fixed to the rear side of the U-shaped block 7. The threaded adjusting rod 8 extends out of the U-shaped frame 6 and can slide back and forth relative to the U-shaped frame 6. A handle 9 is fixed to the rear end of the threaded adjusting rod 8. A limiting nut 10 is provided on both the front and rear sides of the U-shaped frame 6 on the adjusting rod. To facilitate the adjustment and rotation of the limiting nut 10, a wrench lever 15 is provided on the limiting nut 10.

[0025] The upper end of the moving block 4 is provided with an oil filler pipe 11, the upper end of the oil filler pipe 11 is provided with a pipe cap 12, the lower end of the oil filler pipe 11 extends to the position of the wheel shaft, and specifically, the bottom of the oil filler pipe 11 is communicated with the rotating hole 13. By providing the oil filler pipe 11 on the moving block 4, and providing the pipe cap 12 on the oil filler pipe 11, the lubricating oil can be applied to the wheel shaft of the chain wheel 1 or the belt wheel through the oil filler pipe 11, so as to reduce the friction when the wheel shaft rotates.

[0026] The utility model discloses a two moving frames 2 are connected by U-shaped frame 6, so that two moving frames 2 are connected to become a whole, in addition, two moving blocks 4 are connected by U-shaped block 7, so that two moving blocks 4 are also connected to become a whole, and the rear end of U-shaped block 7 is fixed with a threaded adjusting rod 8, the rear end of threaded adjusting rod 8 passes out U-shaped frame 6, and is positioned with fixed nut on the front and rear sides of U-shaped frame 6, so that when tensioning is adjusted, only the front and rear positions of threaded adjusting rod 8 need to be adjusted and fixed with fixed nut, and this structure is that moving frame 2 and moving block 4 are all respectively set to an integral whole, so that when adjusting, the synchronous adjustment of two moving blocks 4 on the two sides can be ensured, and the chain wheel 1 or the belt wheel is prevented from being inclined, and in addition, when adjusting, the movement of two moving blocks 4 on the two sides can be completed by only adjusting a threaded adjusting screw, and the operation is more simple and convenient.

[0027] In the description of the utility model, it is necessary to explain that, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances. It should be understood that the specific embodiments described here are only for understanding the utility model, and are not used to limit the utility model, all other embodiments obtained by ordinary skilled in the art without making creative labor are all within the scope of the utility model protection.

Claims

1. A conveyor tensioning device, installed at the sprocket or pulley at the rear end of the conveyor, comprising two movable frames, each movable frame having a groove, and each groove having a movable block slidably mounted thereon, the axle of the sprocket or pulley being rotatably connected to the movable block, characterized in that: The movable frame has fixed plates on both sides that can be detachably installed on the conveyor support. The two movable frames are connected by a U-shaped frame at their rear. The two movable blocks are connected by a detachable U-shaped block at their rear inner positions. A threaded adjusting rod is fixed to the rear of the U-shaped block. The threaded adjusting rod extends out of the U-shaped frame and can slide back and forth relative to the U-shaped frame. A handle is fixed to the rear end of the threaded adjusting rod. A limiting nut is provided on both the front and rear sides of the U-shaped frame on the adjusting rod. An oil filling pipe is provided on the inner side of the upper end of the movable block. The upper end of the oil filling pipe is provided with a pipe cap. The lower end of the oil filling pipe extends to the position of the wheel axle.

2. The conveyor tensioning device according to claim 1, characterized in that: Each of the moving blocks has a rotating hole on its inner side. The axle of the sprocket or pulley is inserted into the rotating hole and rotatably connected to it. The bottom of the refueling pipe is connected to the rotating hole.

3. The conveyor tensioning device according to claim 1, characterized in that: The chute is a rectangular groove, and the moving block is a rectangular block.

4. A conveyor tensioning device according to claim 1, characterized in that: Each of the two ends of the U-shaped block is fixedly connected to a connecting plate, and the two connecting plates are detachably connected to the two movable blocks by bolts.

5. A conveyor tensioning device according to any one of claims 1-4, characterized in that: The limiting nut is equipped with a wrench handle.

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