Belt conveyor tensioning mechanism

Abstract

The utility model provides a belt conveyor tensioning mechanism which comprises a belt conveyor body and a fixing frame, the belt conveyor body comprises an installation frame, first rotating rollers are symmetrically and rotationally installed in the two ends of the installation frame, belts are installed on the outer sides of the first rotating rollers at the two ends, and the fixing frame is fixedly installed at the bottom of the installation frame. The adjusting frame can be transversely adjusted through a hand wheel, a rotating rod, a worm, a worm gear and a two-way screw rod, a belt can be conveniently extruded through the adjusting frame and a tensioning roller, one person can conveniently complete tensioning operation on the belt, operation is convenient, and practicability is high; the two tensioning rollers are arranged, so that the belt can be conveniently extruded and tensioned from the two sides, and the tensioning degree can be adjusted to be larger when the tensioning mechanism moves by the same distance; and sundries can be blocked through the arranged fixing cover, and the sundries are prevented from influencing transmission of the worm gear and the worm.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor tensioning, in particular to a belt conveyor tensioning mechanism. Background Technique

[0002] A belt conveyor drives the conveying belt to move through the friction force between the roller and the conveying belt, so as to convey articles.

[0003] The Chinese utility model patent with the publication number CN218786295U proposes a tensioning adjustment mechanism and a belt conveyor, including a roller and a frame. Two slide bars corresponding to the two ends of the roller are symmetrically arranged at one end of the frame. A slide frame is slidably sleeved on the outer side of the slide bar. A shaft seat is fixedly assembled at the top of the slide frame, and the end of the roller is rotatably arranged inside the shaft seat.

[0004] In this technical solution, by rotating the adjustment screw, the support plate can be driven to move along the adjustment screw through the threaded structure between the adjustment screw and the support plate. During the movement of the support plate, the connecting plate and the slide frame will be driven to move on the slide bar, and at the same time, the roller at the top of the slide frame can be driven to move to tension the conveying belt sleeved on the roller. However, it is necessary for two people to rotate two adjustment screws simultaneously to move the slide frame and the roller, and the tensioning operation cannot be completed by one person, so the practicability is low.

[0005] Therefore, the utility model provides a belt conveyor tensioning mechanism. Content of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a belt conveyor tensioning mechanism to solve the problems proposed in the above background technology. The utility model can horizontally adjust the adjustment frame by setting a handwheel, a rotating rod, a worm, a worm wheel and a bidirectional screw, which is convenient to squeeze the belt through the adjustment frame and the tensioning roller, and is convenient for one person to complete the tensioning operation of the belt. The operation is convenient and the practicability is high.

[0007] To achieve the above object, the utility model is realized by the following technical solutions: A belt conveyor tensioning mechanism includes a belt conveyor body and a fixing frame. The belt conveyor body includes a mounting frame. Inside both ends of the mounting frame, first rotating rollers are symmetrically and rotatably installed. A belt is installed on the outer sides of the first rotating rollers at both ends. The fixing frame is fixedly installed at the bottom of the mounting frame. The fixing frame includes a fixing plate and fixing rods. The fixing rods are fixedly arranged at the four corner positions of the top of the fixing plate. The fixing rods are fixedly arranged at the bottom of the mounting frame. On both sides of the fixing rods, adjusting frames are arranged through adjusting mechanisms. The shape of the adjusting frame is "U". A tensioning roller is arranged at the top of the adjusting frame. The adjusting mechanism includes a bidirectional screw rod and a rotating rod. In the middle position of the top of the fixing plate, a fixing cover is fixedly arranged. The bidirectional screw rod is limited and rotatably installed inside the front and rear ends of the fixing cover.

[0008] Further, inside the top end of the fixing plate, an installation groove is opened corresponding to the lower part of the fixing cover. The rotating rod is limited and rotatably installed inside the installation groove. A hand wheel is fixedly arranged at the outer end of the rotating rod.

[0009] Further, on the outer side of the middle position of the bidirectional screw rod, a worm gear is fixedly arranged. The worm gear is movably arranged inside the fixing cover.

[0010] Further, at both ends of the rotating rod, worm rods are fixedly arranged. The worm rods and the worm gear are meshed with each other.

[0011] Further, inside the bottom end of the fixing rod, a sliding hole is opened. Both ends of the adjusting frame are slidably installed inside the sliding hole.

[0012] Further, both ends of the bidirectional screw rod are screwed and installed inside the adjusting frames on both sides through screw holes. The number of the bidirectional screw rods is two. The screw holes are opened inside both ends of the adjusting frame.

[0013] Further, in the middle position of the bottom of the mounting frame, a second rotating roller is arranged. The bottom end of the belt is in close contact with the bottom of the second rotating roller. The tensioning roller is arranged on both sides of the second rotating roller and is in close contact with the belt.

[0014] Further, between the first rotating rollers, supporting rollers are equidistantly arranged at the top of the mounting frame. The belt is arranged on the top of the supporting rollers.

[0015] Advantages of the present utility model: A belt conveyor tensioning mechanism of the present utility model can horizontally adjust the adjusting frame through the arranged handwheel, rotating rod, worm, worm gear and bidirectional screw, which facilitates squeezing the belt through the adjusting frame and the tensioning roller, and enables a person to complete the belt tensioning operation conveniently, with convenient operation and high practicability; two tensioning rollers are provided to facilitate squeezing and tensioning the belt from both sides, so that the tensioning mechanism can adjust a greater tensioning degree when moving the same distance; the arranged fixed cover can block sundries to prevent the sundries from affecting the transmission of the worm gear and the worm. Brief Description of the Drawings

[0016] Figure 1 is a structural diagram of a belt conveyor tensioning mechanism of the present utility model;

[0017] Figure 2 is a front sectional view of a belt conveyor tensioning mechanism of the present utility model;

[0018] Figure 3 is a belt conveyor tensioning mechanism of the present utility model Figure 2 enlarged view at A;

[0019] Figure 4 is a structural diagram of the tensioning mechanism of a belt conveyor tensioning mechanism of the present utility model;

[0020] In the figure: 1, mounting frame; 2, first rotating roller; 3, belt; 4, support roller; 5, fixed frame; 6, adjusting mechanism; 7, fixed cover; 8, adjusting frame; 9, tensioning roller; 10, handwheel; 11, bidirectional screw; 12, screw hole; 13, mounting groove; 14, rotating rod; 15, worm gear. Detailed Embodiment

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please refer to Figures 1 to 4, the present utility model provides a technical solution: a belt conveyor tensioning mechanism, including a belt conveyor body and a fixing frame 5. The belt conveyor body includes a mounting frame 1. Inside the two ends of the mounting frame 1, first rotating rollers 2 are symmetrically and rotatably installed. A belt 3 is installed on the outer sides of the two first rotating rollers 2 at both ends. The fixing frame 5 is fixedly installed at the bottom of the mounting frame 1. The fixing frame 5 includes a fixing plate and fixing rods. The fixing rods are fixedly arranged at the four corner positions on the top of the fixing plate, and the fixing rods are fixedly arranged at the bottom of the mounting frame 1. On both sides of the fixing rods, adjusting frames 8 are arranged through an adjusting mechanism 6. The adjusting frame 8 is in a "U" shape, and a tensioning roller 9 is arranged on the top of the adjusting frame 8. The adjusting mechanism 6 includes a bidirectional screw 11 and a rotating rod 14. In the middle position on the top of the fixing plate, a fixing cover 7 is fixedly arranged. The bidirectional screw 11 is rotationally installed in the front and rear ends of the fixing cover 7 with limited rotation. By rotating the bidirectional screw 11, it is convenient to horizontally adjust the adjusting frame 8, so that the adjusting frame 8 drives the tensioning roller 9 to move, facilitating subsequent tensioning adjustment of the belt 3.

[0023] In this embodiment, an installation groove 13 is opened inside the top end of the fixing plate corresponding to the lower part of the fixing cover 7. The rotating rod 14 is rotationally installed in the installation groove 13 with limited rotation. A handwheel 10 is fixedly arranged at the outer end of the rotating rod 14. A worm gear 15 is fixedly arranged on the outer side of the middle position of the bidirectional screw 11. The worm gear 15 is movably arranged inside the fixing cover 7. At both ends of the rotating rod 14, worm shafts are fixedly arranged, and the worm shafts are meshed with the worm gear 15. Inside the bottom end of the fixing rod, a sliding hole is opened. The two ends of the adjusting frame 8 are slidably installed in the sliding hole. The two ends of the bidirectional screw 11 are screwed and installed inside the two side adjusting frames 8 through screw holes 12. The number of the bidirectional screws 11 is two, and the screw holes 12 are opened inside the two ends of the adjusting frame 8. In the middle position at the bottom of the mounting frame 1, a second rotating roller is arranged. The bottom end of the belt 3 is in close contact with the bottom of the second rotating roller. The tensioning roller 9 is arranged on both sides of the second rotating roller and is in close contact with the belt 3. Through the fixing rod and the sliding hole, the adjusting frame 8 can be limited, improving the stability of the adjusting frame 8. Through the rotating rod 14, the worm shaft, and the worm gear 15, the bidirectional screw 11 can be rotationally adjusted, so that the two side adjusting frames 8 can be adjusted to approach each other, facilitating the tensioning adjustment of the belt 3 by driving the tensioning roller 9 through the adjusting frame 8. The provided fixing cover 7 can prevent impurities from affecting the transmission of the worm gear 15 and the worm shaft.

[0024] In this embodiment, support rollers 4 are equidistantly arranged between the first rotating rollers 2 on the top of the mounting frame 1. The belt 3 is arranged on the top of the support rollers 4. Through the support rollers 4, the belt 3 can be supported, facilitating the transportation of items.

[0025] When using this belt conveyor tensioning mechanism and it is necessary to tension the belt 3, rotate the handwheel 10. The handwheel 10 drives the worm to rotate inside the installation groove 13 through the rotating rod 14. The worm meshes with and drives the worm wheel 15 to rotate. The worm wheel 15 drives the bidirectional screw 11 to rotate inside the front and rear ends of the fixed cover 7. Through the screwing action of the bidirectional screw 11 and the screw holes 12, it can drive the adjusting frame 8 to slide inside the sliding holes, making the two side adjusting frames 8 approach each other, and driving the tensioning rollers 9 to squeeze the bottom of the belt 3, facilitating a single person to complete the tensioning operation of the belt 3, with convenient operation; the two tensioning rollers 9 provided can squeeze and tension the belt 3 from both sides, enabling the tensioning mechanism to adjust a greater tensioning degree when moving the same distance; and the fixed cover 7 can block sundries, preventing them from falling inside the installation groove 13 and avoiding the influence of sundries on the transmission of the worm wheel 15 and the worm, with high practicability.

[0026] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A belt conveyor tensioning mechanism, comprising a belt conveyor body and a fixing frame (5), characterized in that: The belt conveyor body comprises a mounting frame (1), first rotating rollers (2) are symmetrically rotatably mounted inside the two ends of the mounting frame (1), belts (3) are mounted on the outsides of the first rotating rollers (2) at the two ends, the fixing frame (5) is fixedly mounted on the bottom of the mounting frame (1), the fixing frame (5) comprises a fixing plate and a fixing rod, the fixing rod is fixedly arranged at the four corners of the top of the fixing plate, the fixing rod is fixedly arranged at the bottom of the mounting frame (1), adjusting frames (8) are arranged on both sides of the fixing rod through an adjusting mechanism (6), the adjusting frame (8) is in a "U" shape, a tensioning roller (9) is arranged on the top of the adjusting frame (8), the adjusting mechanism (6) comprises a bidirectional screw (11) and a rotating rod (14), a fixing cover (7) is fixedly arranged at the middle position of the top of the fixing plate, and the bidirectional screw (11) is limitedly rotatably mounted inside the front and rear ends of the fixing cover (7).

2. A belt conveyor tensioning mechanism according to claim 1, characterized in that: A mounting groove (13) is provided inside the top end of the fixing plate corresponding to the lower portion of the fixing cover (7), the rotating rod (14) is mounted inside the mounting groove (13) for limited rotation, and a hand wheel (10) is fixedly provided at the outer end of the rotating rod (14).

3. A belt conveyor tensioning mechanism according to claim 2, characterized in that: A worm gear (15) is fixedly arranged on the outer side of the middle position of the bidirectional screw (11), and the worm gear (15) is movably arranged inside the fixed cover (7).

4. A belt conveyor tensioning mechanism according to claim 3, characterized in that: Worms are fixedly arranged at both ends of the rotating rod (14), and the worms and the worm wheel (15) are meshed with each other.

5. A belt conveyor tensioning mechanism according to claim 4, characterized in that: A sliding hole is provided inside the bottom end of the fixing rod, and the two ends of the adjusting frame (8) are slidably mounted inside the sliding hole.

6. A belt conveyor tensioning mechanism according to claim 5, characterized in that: The two ends of the bidirectional screw rod (11) are screwed and installed inside the adjustment frames (8) on both sides through screw holes (12). There are two bidirectional screw rods (11) and the screw holes (12) are opened inside the two ends of the adjustment frames (8).

7. A belt conveyor tensioning mechanism according to claim 6, characterized in that: A second rotating roller is arranged in the middle of the bottom of the mounting frame (1), the bottom end of the belt (3) is in close contact with the bottom of the second rotating roller, and the tensioning roller (9) is arranged on both sides of the second rotating roller and in close contact with the belt (3).

8. The belt conveyor tensioning mechanism according to claim 1, characterized in that: Support rollers (4) are arranged equidistantly between the top of the mounting frame (1) and the first rotating rollers (2), and the belt (3) is arranged on the top of the support rollers (4).

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