Conveyor tensioning block

Abstract

The utility model provides a conveyor tensioning block which comprises a body frame, a main plate, a supporting block and a guide block. The body frame comprises a vertical plate and an arc-shaped plate. The two ends of the arc-shaped plate are connected with the two ends of the vertical plate respectively to form a closed frame. The shape of the main board is the same as that of the body frames, the two body frames are fixed to the upper surface and the lower surface of the main board respectively, a supporting block is fixed to the main board, the thickness of the supporting block is larger than that of the body frames, a guide block is fixed to the surface, away from the main board, of the supporting block, and a through hole is formed in the supporting block. The tensioning block is low in production cost and light in weight, heat generated by friction can be dissipated more easily through the frame type design, heat dissipation performance is better, the tensioning block is prevented from expanding due to heat generated by friction, long-term stable operation of the conveyor is guaranteed, and the service life of the conveyor is guaranteed. During installation, the positions of the opposite tensioning blocks on the two sides can be limited, it is guaranteed that the tensioning blocks on the two sides are stressed in a balanced mode during operation, abrasion of the tensioning blocks or a chain is prevented from being aggravated, and the service life of the conveyor is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of conveyor equipment technology, and in particular to a conveyor tensioning block. Background Technology

[0002] Conveyor tensioners are used to maintain the tension of the drive chain of a chain conveyor. By adjusting the position of the tensioners, the conveyor belt can maintain sufficient tension under different working conditions, preventing the drive wheel from slipping due to slack.

[0003] Currently, the tensioning blocks for conveyors are mainly simple nylon blocks, which have the following main problems: First, existing tensioning blocks have poor heat dissipation. During long-term use, due to friction between the drive chain or conveyor belt and the nylon block, the poor heat dissipation often causes the nylon block to expand due to heat, affecting the tension of the drive chain and impacting operational stability. Second, when installing tensioning blocks on the frame, a set of two tensioning blocks needs to be installed symmetrically. However, the installation in current technology is often based on experience, making it difficult to achieve symmetry. In this case, the tension force on the two sides of the tensioning blocks is not balanced, which often leads to accelerated wear of the tensioning blocks or drive chains and other components, affecting their service life. Summary of the Invention

[0004] To address the above problems, this utility model provides a conveyor tensioning block.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A conveyor tensioning block includes a body frame, a main board, a support block, and a guide block;

[0007] The main body frame includes a vertical plate and an arc-shaped plate. The opening of the arc-shaped plate faces the vertical plate, and the two ends of the arc-shaped plate are respectively connected to the two ends of the vertical plate to form a closed frame. The main body has the same shape as the main body frame. The two main body frames are respectively fixed to the upper and lower surfaces of the main body. The outer surface of the arc-shaped plate is provided with guide protrusions.

[0008] The support block is fixed on the motherboard. The thickness of the support block is greater than the thickness of the main frame. The guide block is fixed on the surface of the support block away from the motherboard. The support block is provided with a through hole that penetrates the support block and the motherboard.

[0009] Furthermore, a support frame is fixed to the side of the main board away from the support block. The support frame includes a horizontal bar and a vertical bar. One end of the horizontal bar is vertically connected to the vertical plate, and the other end of the horizontal bar is connected to the arc-shaped plate. The two horizontal bars are arranged in parallel. The vertical bar is located in the middle of the horizontal bar and is vertically connected to the two horizontal bars.

[0010] Furthermore, the support block includes a lower block and an upper block connected in sequence. The lower block is fixed on the main board, and the thickness of the lower block is the same as the thickness of the main frame. The two ends of the lower block are respectively connected to the vertical plate and the arc-shaped plate. The upper block is fixed on the upper surface of the lower block. The upper end surfaces of the vertical plate and the arc-shaped plate are connected to the lower surface of the upper block. The upper block includes a first end and a second end. The first end is flush with the side of the vertical plate away from the arc-shaped plate. The second end is an arc-shaped end, which is concentrically arranged with the arc-shaped plate, and the radius of the arc-shaped end is the same as the radius of the arc-shaped plate.

[0011] Furthermore, the guide block is a strip-shaped block, the front side of the guide block is an arc-shaped surface, the width of the guide block is less than the width of the support block, the length of the guide block is less than the length of the support block, the arc-shaped surface is flush with the arc-shaped end, and the through hole is provided on the support block behind the guide block, with the center of the through hole located on the central axis of the guide block.

[0012] Furthermore, there are two guide protrusions, which are arranged side by side along the circumference of the arc-shaped plate.

[0013] Furthermore, the guide block has a positioning strip on its side away from the support block, and the positioning strip is equidistant along the length of the guide block.

[0014] Furthermore, the positioning strip includes a main strip and a support strip. The main strip is V-shaped, with its opening facing the rear of the guide block. The main strips are equidistantly spaced. The support strip is disposed in the gap between two adjacent main strips and is arranged along the width direction of the guide block. One end of the support strip is connected to the main strip, and the other end of the support strip extends toward the side of the guide block and is flush with the side of the guide block.

[0015] Furthermore, there are at least two main strips, and each main strip is provided with at least two branch strips, with the branch strips on the same main strip evenly distributing the spacing between adjacent main strips.

[0016] Furthermore, the main body frame, motherboard, support block, and guide block are integrated and connected.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) This utility model uses a frame and a main board to form a tensioning block, and no longer uses a whole nylon block as a tensioning block. First, it reduces the amount of material used, resulting in low production costs and light weight. Second, when in use, the tension of the chain is adjusted by one side of the arc plate. The chain rubs against one side of the arc plate. The frame design makes it easier to dissipate the heat generated by friction, resulting in better heat dissipation and preventing the heat from being unable to dissipate, which would cause the nylon to expand. In addition, a support block is also provided. Since the thickness of the support block is greater than the thickness of the main frame, after installation, the support block abuts against the frame, while there is a gap between the main frame and the frame, which has good ventilation, ensures good heat dissipation, prevents the tensioning block from rubbing and generating heat and expanding, ensures the long-term stable operation of the conveyor, and ensures the service life of the conveyor. (2) The guide block of this utility model is provided with a positioning strip. The positioning strip ensures that the positions of the tensioning blocks on both sides can be limited during installation, ensuring that the two tensioning blocks are symmetrical on both sides of the chain, ensuring that the tensioning blocks on both sides are balanced during operation, avoiding aggravating the wear of the tensioning blocks or the chain, and ensuring the service life of the conveyor. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present invention. Figure 1 ;

[0019] Figure 2 This is a three-dimensional structural diagram of Embodiment 1 of the present invention. Figure 2 ;

[0020] Figure 3 This is Embodiment 1 of the present utility model. Figure 1 Rear view;

[0021] Figure 4 This is a cross-sectional view (AA) of Embodiment 1 of the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram of Embodiment 2 of the present invention;

[0023] Figure 6 This is a schematic diagram of the installation structure of Embodiment 2 of this utility model;

[0024] Figure 7 This is an enlarged view of part a of Embodiment 2 of this utility model. Detailed Implementation

[0025] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments. Example

[0026] Please refer to the reference. Figure 1 , Figure 2 , Figure 3 and Figure 4 A conveyor tensioning block according to an embodiment of the present invention includes a main frame 100, a main board 200, a support block 300, and a guide block 400.

[0027] The main frame 100 includes a vertical plate 110 and an arc-shaped plate 120. The opening of the arc-shaped plate 120 faces the vertical plate 110, and the two ends of the arc-shaped plate 120 are respectively connected to the two ends of the vertical plate 110 to form a closed frame. The main plate 200 has the same shape as the main frame 100. The two main frames 100 are respectively fixed to the upper and lower surfaces of the main plate 200. The main frame 100 and the main plate 200 form a tensioning block, eliminating the need for a whole nylon block as the tensioning block. This firstly reduces the amount of material used, resulting in lower production costs and lighter weight. Secondly, during use, the tension of the chain is adjusted by one side of the arc-shaped plate 120. The chain rubs against one side of the arc-shaped plate 120, and the frame design makes it easier to dissipate the heat generated by friction, resulting in better heat dissipation and preventing the nylon from expanding due to the inability to dissipate heat. The arc plate 120 has a guide protrusion 121 on its outer surface. In use, the middle part of the chain is placed at the guide protrusion, and the chain is guided by the guide protrusion 121 to prevent the chain from deviating to the side during operation and to ensure the long-term stable operation of the conveyor.

[0028] The support block 300 is fixed on the main board 200. The thickness of the support block 300 is greater than the thickness of the main frame 100. The guide block 400 is fixed on the surface of the support block 300 away from the main board. The support block 300 has a through hole 500 that penetrates both the support block 300 and the main board 200. In use, the guide block 400 is first inserted into the corresponding slot on the frame. Then, a bolt is passed through the through hole 500 and the slot, and the bolt is tightened with a nut to fix the tensioning block to the frame. Because the thickness of the support block 300 is greater than the thickness of the main frame 100, after installation, the support block 300 abuts against the frame, while there is a gap between the main frame 100 and the frame, providing good ventilation and heat dissipation. This prevents the tensioning block from expanding due to frictional heat, ensuring long-term stable operation of the conveyor and extending its service life.

[0029] Furthermore, a support frame 210 is fixed to the side of the main board 200 away from the support block 300. The support frame 210 includes a horizontal bar 211 and a vertical bar 212. One end of the horizontal bar 211 is vertically connected to the vertical plate 110, and the other end of the horizontal bar 211 is connected to the arc-shaped plate 120. The two horizontal bars are arranged in parallel. The vertical bar 212 is located in the middle of the horizontal bar 211 and is vertically connected to the two horizontal bars 211. This design ensures the mechanical strength of the main frame 100 and prevents deformation. The support frame design also avoids affecting the heat dissipation of the tensioning block.

[0030] Furthermore, the support block 300 includes a lower block 310 and an upper block 320 connected in sequence. The lower block 310 is fixed on the main board 200. The thickness of the lower block 310 is the same as the thickness of the main body frame 100. The two ends of the lower block 310 are respectively connected to the vertical plate 110 and the arc plate 120. The upper block 320 is fixed on the upper surface of the lower block 310. The upper end surfaces of the vertical plate 110 and the arc plate 120 are connected to the lower surface of the upper block 320. The upper block 320 includes a first end 321 and a second end 322. The first end 321 is flush with the side of the vertical plate 110 away from the arc plate. The second end 322 is an arc-shaped end. The arc-shaped end 322 is concentrically arranged with the arc plate 120. The radius of the arc-shaped end 322 is the same as the radius of the arc plate 120. The structure is aesthetically pleasing and ensures high connection strength between the support block 300 and the main frame 100, making the connection less prone to breakage. It also improves the support strength of the main frame 100 and prevents deformation of the main frame. The upper block 320 separates the frame from the main frame 100 to create a heat dissipation space, which facilitates heat dissipation and prevents friction-induced heating.

[0031] Furthermore, the guide block 400 is a strip-shaped block, and its front side is an arc-shaped surface 410. The width of the guide block 400 is smaller than the width of the support block 300, and the length of the guide block 400 is smaller than the length of the support block 300. The arc-shaped surface 410 is flush with the arc-shaped end 322. The guide block 400 provides good positioning, ensuring that the tensioning block can only move horizontally when installed on the frame, preventing rotation. The through hole 500 is located on the support block 300 behind the guide block 400, and the center of the through hole 500 is located on the central axis of the guide block 400. The length of the strip-shaped hole on the frame is greater than the length of the guide block, approximately three times the length of the guide block 400. When the guide block 400 is inserted into the strip-shaped hole on the frame, the through hole 500 will be correspondingly located within the range of the strip-shaped hole, eliminating the need for alignment and ensuring simpler, more convenient, and faster installation.

[0032] Furthermore, there are two guide protrusions 121, which are arranged side by side along the circumference of the arc-shaped plate 120. This ensures that the tensioning block can simultaneously guide and adjust the tension of the two parallel chains during use, meeting market needs.

[0033] Furthermore, the main body frame 100, main board 200, support block 300, and guide block 400 are integrated and connected. They are integrally injection molded from nylon material to ensure connection strength, prevent breakage at the connection point, and improve the service life of the tensioning block. Example

[0034] like Figures 5-6 As shown, the remaining structure is the same as in Embodiment 1, except that the guide block 400 has positioning strips 420 on its side away from the support block 300, and the positioning strips 420 are equidistantly arranged along the length of the guide block 400. During installation, firstly, insert the guide blocks 400 of the two tensioning blocks into the two slotted holes of the frame, with the two tensioning blocks facing each other and the arc-shaped surface 410 at the front end of the guide block 400 abutting one end of the slotted hole. Then, use a marker to mark the position of the last positioning strip at the rear end of the two guide blocks on the frame. Next, push one of the tensioning blocks to slide to the other end of the slotted hole to a suitable position, and use bolts to lock it in place. Observe which positioning strip 420 of the guide block 400 the mark on that side of the frame is currently located on. Finally, push the corresponding number of positioning strips on the guide block 400 of the other tensioning block to the marked position to fix the tensioning block in that position. The positioning bar 420 ensures that the positions of the tensioning blocks on both sides are limited during installation, ensuring that the two tensioning blocks are symmetrical on both sides of the chain, ensuring that the tensioning blocks on both sides are subjected to balanced forces during operation, avoiding aggravated wear on the tensioning blocks or the chain, and ensuring the service life of the conveyor.

[0035] Furthermore, the positioning strip 420 includes a main strip 421 and a support strip 422. The main strip 421 is V-shaped, with its opening facing the rear of the guide block 400. The main strips 421 are equidistantly spaced. The support strips 422 are positioned in the gaps between adjacent main strips 421, extending along the width of the guide block 400. One end of the support strip 422 is connected to the main strip 421, and the other end extends towards and is flush with the side of the guide block 400. The design of the main strip 421 and support strip 422 facilitates the reduction of the number of books needed to identify the positioning strip during use. By first identifying which main strip 421 it is on, and then determining which support strip 422 it is on, the position of the marked positioning strip 420 can be quickly determined, making installation more convenient and efficient, eliminating the need to count each strip individually, and improving installation speed.

[0036] Furthermore, there are at least two main strips 421, and each main strip 421 is provided with at least two support strips 422. The support strips 422 on the same main strip 421 evenly distribute the spacing between adjacent main strips 421. This ensures that the positioning strips 420 are equidistantly arranged. The limited number of main strips 421 and support strips 422 reduces the number of judgments and facilitates the determination of the position of the mark on the positioning strip.

[0037] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. A conveyor tensioner block, characterized by: The body frame, the main plate, the support block and the guide block are integrally connected. The body frame comprises a vertical plate and an arc-shaped plate, the opening of the arc-shaped plate faces the vertical plate, and the two ends of the arc-shaped plate are respectively connected to the two ends of the vertical plate to form a closed frame; the main plate has the same shape as the body frame, and two body frames are respectively fixed on the upper and lower surfaces of the main plate; the surface of the arc-shaped plate facing the outside is provided with a guide protrusion. The support block is fixed on the main plate, the thickness of the support block is greater than the thickness of the body frame, the surface of the support block away from the main plate is fixed with the guide block, and the support block is provided with a through hole penetrating through the support block and the main plate.

2. The conveyor idler as set forth in claim 1, wherein: The side of the main plate away from the support block is fixed with a support frame, the support frame comprises a horizontal rod and a vertical rod, one end of the horizontal rod is connected to the vertical plate perpendicularly, the other end of the horizontal rod is connected to the arc-shaped plate, the two horizontal rods are arranged in parallel, the vertical rod is arranged at the middle part of the horizontal rod, and the vertical rod is connected to the two horizontal rods perpendicularly.

3. The conveyor idler as set forth in claim 1, wherein: The support block comprises a lower block and an upper block connected in sequence, the lower block is fixed on the main plate, the thickness of the lower block is the same as the thickness of the body frame, the two ends of the lower block are respectively connected to the vertical plate and the arc-shaped plate, and the upper block is fixed on the upper surface of the lower block; the upper end surfaces of the vertical plate and the arc-shaped plate are connected to the lower surface of the upper block; the upper block comprises a first end and a second end, the first end is flush with the side of the vertical plate away from the arc-shaped plate, the second end is an arc-shaped end, the arc-shaped end is arranged concentrically with the arc-shaped plate, and the radius of the arc-shaped end is the same as the radius of the arc-shaped plate.

4. The conveyor idler as set forth in claim 3, wherein: The guide block is a strip-shaped block, the front side of the guide block is an arc-shaped surface, the width of the guide block is smaller than the width of the support block, the length of the guide block is smaller than the length of the support block, the arc-shaped surface is flush with the arc-shaped end, the through hole is arranged on the support block behind the guide block, and the center of the through hole is located on the central axis of the guide block.

5. The conveyor idler as set forth in claim 1, wherein: The guide protrusions are two, and the two guide protrusions are arranged side by side along the circumference of the arc-shaped plate.

6. The conveyor idler as set forth in claim 1, wherein: The side of the guide block away from the support block is provided with a positioning strip, and the positioning strips are arranged equidistantly along the length direction of the guide block.

7. The conveyor idler as set forth in claim 6, wherein: The positioning strip comprises a main strip and a branch strip, the main strip is V-shaped, the opening of the main strip faces the rear of the guide block, the main strips are arranged equidistantly, the branch strip is arranged in the gap between adjacent two main strips, the branch strip is arranged along the width direction of the guide block, one end of the branch strip is connected to the main strip, and the other end of the branch strip extends to the side edge of the guide block and is flush with the side edge of the guide block.

8. The conveyor idler as set forth in claim 7, wherein: There are at least two main strips, and at least two branch strips are arranged on each main strip, and the branch strips on the same main strip divide the spacing between adjacent main strips.

9. The conveyor idler as set forth in claim 1, wherein: The body frame, the main plate, the support block and the guide block are integrally connected.

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