A down belt conveyor auxiliary brake friction damping roller

Abstract

The application relates to the technical field of down-running belt conveyor assembly, and discloses an auxiliary braking friction damping roller for a down-running belt conveyor, which comprises a horizontal support, a reinforcing rib and a fixed plate are fixedly connected to the inner side of the horizontal support, mounting plates are fixedly connected to the two ends of the horizontal support, a sliding rod is fixedly connected to the top of the fixed plate, and a lifting column is slidingly connected to the surface of the sliding rod. In the application, the anti-misoperation adjusting mechanism is arranged, so that when the height of the connecting plate needs to be adjusted, the rotating rod is pressed upward and then rotated, at the moment, the rotating rod drives the threaded column to rotate through the cooperation of the rotating block, the arc-shaped block and the clamping groove, the threaded column rotates to make the lifting column move upward or downward, so that the height of the connecting plate is adjusted, and when the rotating rod is loosened, the rotating rod moves downward and returns, at the moment, rotating the rotating rod cannot drive the threaded column to rotate, so that the situation that the height of the connecting plate changes due to misoperation is effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of downward conveyor components, specifically to an auxiliary braking friction damping idler for an downward conveyor. Background Technology

[0002] Belt conveyors, also known as rubber belt conveyors, are widely used in various industries such as home appliances, electronics, electrical appliances, machinery, tobacco, injection molding, post and telecommunications, printing, and food for the assembly, testing, debugging, packaging, and transportation of objects. They have strong conveying capacity, long conveying distance, simple structure, easy maintenance, and can be easily programmed and automated.

[0003] Patent document CN210236174U discloses a damping auxiliary braking device for a conveyor belt, including a control device and a damping plate device. The damping plate device includes a base, and a damping liner fixedly mounted on the base via support legs, located below the belt. Multiple strip-shaped damping plates along the transport direction are fixedly mounted on the upper surface of the damping liner. A lifting bracket is also provided below the damping liner. The upper end of the lifting bracket is connected to a bracket connector fixedly mounted at the center of the damping liner via a connecting pin, and the lower end is connected to a lifting roller placed on the base via a pin. The control device includes a damping braking device controller and a hydraulic cylinder. The lifting roller is connected to the piston rod of the hydraulic cylinder via a traction chain. The input end of the damping braking device controller is connected to the stop signal output end of the conveyor centralized control device, and the output end is connected to the control end of the hydraulic cylinder.

[0004] The aforementioned application document describes a damping braking device controller that operates a hydraulic cylinder. The piston rod pulls the lifting bracket and lifting rollers under the damping liner via a traction chain. The damping liner is then raised by the lifting bracket, and the conveyor belt is fully supported by the damping plate, increasing frictional resistance and providing auxiliary braking for the conveyor. However, the internal idlers of the conveyor belt cannot achieve automatic damping and deceleration. Relying solely on the friction of the damping plate results in poor deceleration, and the adjustment method is cumbersome, making fine-tuning difficult and hindering transportation operations. Therefore, improvements are needed. Summary of the Invention

[0005] This invention proposes an auxiliary braking friction damping idler for a downconducting belt conveyor, which solves the problems mentioned in the above documents.

[0006] The technical solution of the present invention is as follows: an auxiliary braking friction damping idler for a down-conveying belt conveyor, comprising an idler body and a cross support, wherein the two ends of the idler body are fixedly connected to a rotating roller support by bolts, and a friction damping mechanism is provided inside the idler body; The damping roller mechanism includes a fixed rod, which is fixedly connected to the roller bracket by bolts. A roller is rotatably connected to the surface of the fixed rod. An annular groove is formed in the middle section of the roller. A connecting frame is fixedly connected to the inner wall of the annular groove. A roller is rotatably connected to the inner side of the connecting frame. A square groove is formed on the surface of the roller. A compression spring is set inside the square groove. A friction resistance block is slidably connected inside the square groove through the compression spring.

[0007] The end of the roller furthest from the connecting frame is in close contact with the surface of the fixed rod, and the friction resistance block is initially completely within the square groove. When the roller rotates, it will cause the roller to rub against the surface of the fixed rod, thus causing the roller to rotate. The friction resistance block being completely within the square groove will not affect the rotation of the roller.

[0008] The inner side of the horizontal support is fixedly connected with reinforcing ribs and a fixing plate. Both ends of the horizontal support are fixedly connected with mounting plates. A sliding rod is fixedly connected to the top of the fixing plate. A lifting column is slidably connected to the surface of the sliding rod. A connecting plate is fixedly connected to the top of the lifting column. The top of the connecting plate is fixedly connected to the roller support. An anti-accidental contact adjustment mechanism is provided on the top of the fixing plate. The anti-accidental contact adjustment mechanism includes a threaded column and a rotating block. The threaded column passes through and is rotatably connected to the top of the fixing plate. An opening slot is formed on the inner side of the threaded column. A spring spring is installed inside the opening slot. A push plate is slidably connected inside the opening slot via the spring spring. A slot is formed on the inner wall of the opening slot. A groove is formed on the side of the rotating block. A telescopic spring is installed inside the groove. An arc-shaped block is slidably connected inside the groove via the telescopic spring. A rotating rod is fixedly connected to the bottom of the rotating block. A lubrication mechanism is provided inside the threaded column. A damping roller mechanism is provided on the top of the roller support.

[0009] The rotating block is located in the open slot, and the rotating rod passes through the bottom of the threaded column. When the rotating block rotates directly, it will not cause the threaded column to rotate.

[0010] The top of the rotating block initially contacts the bottom of the push plate. The lifting column is threadedly connected to the threaded column through an internal thread. When the rotating block moves upward, it will drive the push plate to move upward. When the threaded column rotates, it will drive the lifting column to move along the slide rod.

[0011] The end of the arc-shaped block away from the telescopic spring is initially in contact with the inner wall of the opening groove, and the telescopic spring is initially in a compressed state. When the groove and the slot are in contact, the telescopic spring will rebound and drive the arc-shaped block into the slot.

[0012] The opening size of the slot is equal to the opening size of the groove. The number of slots is set to eight, and the eight slots are arranged in a circular array on the inner wall of the opening groove. After the arc-shaped block is inserted into the slot, the rotating block will rotate and drive the threaded column to rotate.

[0013] The lubrication mechanism includes an oil reservoir and a pressure chamber. Both the oil reservoir and the pressure chamber are fixedly connected inside a threaded column. An oil injection pipe is fixedly connected through the bottom of the oil reservoir. A piston rod is slidably connected inside the pressure chamber. A counterweight is fixedly connected to the bottom of the piston rod. An oil suction pipe is fixedly connected through one side of the pressure chamber, and an oil outlet pipe is fixedly connected through the other side of the pressure chamber. The end of the oil suction pipe away from the pressure chamber is fixedly connected through the oil reservoir. A one-way valve is installed inside both the oil suction pipe and the oil outlet pipe.

[0014] The one-way valve in the oil suction pipe is open to the inside of the pressure chamber, and the one-way valve in the oil outlet pipe is open to the outside of the pressure chamber. When a negative pressure is formed in the pressure chamber, the lubricating oil in the oil storage box will be drawn in through the oil suction pipe, and when the lubricating oil in the pressure chamber is squeezed, it will be discharged through the oil outlet pipe.

[0015] The friction resistance block is made of rubber, and the end of the friction resistance block away from the compression spring is rough and uneven. When the rough and uneven end of the rubber friction resistance block comes into contact with the surface of the fixed rod, it will generate greater resistance.

[0016] The working principle and beneficial effects of this invention are as follows: 1. In this invention, by setting up a damping roller mechanism, when using the roller to transport items downwards, the roller's rotation speed is slowed down through the cooperation of components such as rollers, friction resistance blocks, and compression springs, preventing the roller from rotating faster and faster under the action of inertia, thus effectively improving safety.

[0017] 2. In this invention, an anti-accidental touch adjustment mechanism is provided. When the height of the connecting plate needs to be adjusted, pressing the rotating rod upward and rotating the rod will cause the threaded column to rotate through the cooperation of components such as the rotating block, arc block, and slot. The rotation of the threaded column causes the lifting column to move up or down, thereby adjusting the height of the connecting plate. When the rotating rod is released, the rotating rod moves down to return to its original position. At this time, rotating the rotating rod will not cause the threaded column to rotate, effectively preventing the connection plate height from changing due to accidental touch.

[0018] 3. In this invention, a lubrication mechanism is provided so that during the pressing of the rotating rod and the subsequent rebound of the elastic spring driving the push plate to move downward, causing the rotating block and the rotating rod to move downward and return to their original position, the oil suction pipe draws lubricating oil from the oil storage box through the cooperation of components such as the pressure chamber and the piston rod, and discharges it through the oil outlet pipe to lubricate the threads of the threaded column, preventing stripping and other issues from occurring after long-term use. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a three-dimensional front view of the overall structure of the present invention; Figure 2 This is a three-dimensional bottom view of the overall structure of the present invention; Figure 3 This is a three-dimensional sectional view of the overall structure of the present invention; Figure 4 This is a three-dimensional schematic diagram of the anti-accidental touch adjustment mechanism of the present invention; Figure 5 This is a three-dimensional sectional view of the anti-accidental touch adjustment mechanism structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of the structure at point A in the middle; Figure 7 This is a three-dimensional sectional view of the lubrication mechanism structure of the present invention; Figure 8 This is a three-dimensional sectional view of the structure at the idler roller of the present invention; Figure 9 This is a three-dimensional cross-sectional view of the structure at the roller of the present invention.

[0021] In the diagram: 1. Horizontal support; 2. Reinforcing rib; 3. Mounting plate; 4. Fixing plate; 5. Slide rod; 6. Lifting column; 7. Connecting plate; 8. Roller support; 9. Anti-accidental contact adjustment mechanism; 91. Threaded column; 92. Opening groove; 93. Elastic spring; 94. Push plate; 95. Slot; 96. Rotating block; 97. Groove; 98. Telescopic spring; 99. Arc block; 910. Rotating rod; 11. Lubrication mechanism; 111. Oil reservoir; 112. Oil injection pipe; 113. Pressure chamber; 114. Piston rod; 115. Oil suction pipe; 116. Oil outlet pipe; 117. Counterweight block; 12. Idler roller body; 121. Fixing rod; 122. Idler roller; 123. Circular groove; 124. Connecting frame; 125. Roller; 126. Square groove; 127. Compression spring; 128. Friction resistance block. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1 like Figures 1-9 As shown, this embodiment proposes an auxiliary braking friction damping idler for a down-conveying belt conveyor, including an idler body 12 and a cross support 1. The two ends of the idler body 12 are fixedly connected to a rotating roller support 8 by bolts, and a friction damping mechanism is provided inside the idler body 12. The friction damping mechanism includes a fixed rod 121, which is fixedly connected to the roller bracket 8 by bolts. A roller 122 is rotatably connected to the surface of the fixed rod 121. An annular groove 123 is formed at the middle end of the roller 122. A connecting frame 124 is fixedly connected to the inner wall of the annular groove 123. A roller 125 is rotatably connected to the inner side of the connecting frame 124. A square groove 126 is formed on the surface of the roller 125. A compression spring 127 is installed inside the square groove 126. A friction resistance block 128 is slidably connected inside the square groove 126 through the compression spring 127. The end of the roller 125 away from the connecting frame 124 is connected to the fixed rod 122. The surfaces of the fixed rod 121 are in close contact, and the friction resistance block 128 is initially completely within the square groove 126. When the roller 122 rotates, it will cause the roller 125 to rub against the surface of the fixed rod 121, thereby causing the roller 125 to rotate. The friction resistance block 128 is completely within the square groove 126 and will not affect the rotation of the roller 122. The friction resistance block 128 is made of rubber, and the end of the friction resistance block 128 away from the compression spring 127 is rough and uneven. When the rough and uneven end of the rubber friction resistance block 128 contacts the surface of the fixed rod 121, it will generate greater resistance.

[0024] In this embodiment, the fixing rod 121 is installed on the roller bracket 8 by bolts. When the roller 122 is used to transport the item downwards, the roller 122 rotates and drives the roller 125 to rub against the surface of the fixing rod 121, causing the roller 125 to rotate. When the rotation speed of the roller 122 increases, the rotation speed of the roller 125 also increases. The centrifugal force generated by the rapid rotation of the roller 125 will throw the friction resistance block 128 out. At this time, the rough and uneven end of the rubber friction resistance block 128 will generate a large resistance when it contacts the surface of the fixing rod 121, thereby slowing down the rotation speed of the roller 122 and preventing the roller 122 from rotating faster and faster under the action of inertia, effectively improving safety.

[0025] Example 2 like Figures 1-9As shown, based on the same concept as Embodiment 1 above, a second embodiment is also proposed. The inner side of the horizontal support 1 is fixedly connected with a reinforcing rib 2 and a fixing plate 4. Both ends of the horizontal support 1 are fixedly connected with mounting plates 3. The top of the fixing plate 4 is fixedly connected with a sliding rod 5. The surface of the sliding rod 5 is slidably connected with a lifting column 6. The top of the lifting column 6 is fixedly connected with a connecting plate 7. The top of the connecting plate 7 is fixedly connected with the rotating roller support 8. The top of the fixing plate 4 is provided with an anti-accidental touch adjustment mechanism 9.The anti-accidental touch adjustment mechanism 9 includes a threaded post 91 and a rotating block 96. The threaded post 91 passes through and is rotatably connected to the top of the fixed plate 4. An opening slot 92 is formed on the inner side of the threaded post 91. A spring spring 93 is installed inside the opening slot 92. A push plate 94 is slidably connected inside the opening slot 92 through the spring spring 93. A slot 95 is formed on the inner wall of the opening slot 92. A groove 97 is formed on the side of the rotating block 96. A telescopic spring 98 is installed inside the groove 97. An arc-shaped block 99 is slidably connected inside the groove 97 through the telescopic spring 98. The end of the arc-shaped block 99 away from the telescopic spring 98 initially abuts against the inner wall of the opening slot 92, and extends... Initially, the spring 98 is compressed. When the groove 97 and the slot 95 are engaged, the spring 98 rebounds, causing the arc-shaped block 99 to engage in the slot 95. The opening size of the slot 95 is equal to the opening size of the groove 97. There are eight sets of slots 95 arranged in a circular array on the inner wall of the opening slot 92. After the arc-shaped block 99 engages in the slot 95, the rotating block 96 rotates, causing the threaded column 91 to rotate. A rotating rod 910 is fixedly connected to the bottom of the rotating block 96. The rotating block 96 is located within the opening slot 92, and the rotating rod 910 penetrates the bottom of the threaded column 91. Direct rotation of the rotating block 96 will not cause the threaded column 91 to rotate. In its initial state, the top of block 96 abuts against the bottom of push plate 94. Lifting column 6 is threadedly connected to threaded column 91 via an internal thread. Rotating block 96 upwards moves push plate 94 upwards, and rotating threaded column 91 moves lifting column 6 along slide rod 5. Lubrication mechanism 11 includes oil reservoir 111 and pressure chamber 113. Both oil reservoir 111 and pressure chamber 113 are fixedly connected inside threaded column 91. Oil injection pipe 112 is fixedly connected through and to the bottom of oil reservoir 111. A piston rod 114 is slidably connected to the piston inside pressure chamber 113. A counterweight block 117 is fixedly connected to the bottom of piston rod 114. Pressure chamber 113… A suction pipe 115 is fixedly connected to one side of the pressure chamber 113, and an oil outlet pipe 116 is fixedly connected to the other side. The end of the suction pipe 115 away from the pressure chamber 113 is fixedly connected to the oil storage box 111. Both the suction pipe 115 and the oil outlet pipe 116 are equipped with one-way valves. The one-way valve in the suction pipe 115 is for one-way flow towards the inside of the pressure chamber 113, and the one-way valve in the oil outlet pipe 116 is for one-way flow towards the outside of the pressure chamber 113. When a negative pressure is formed in the pressure chamber 113, lubricating oil will be drawn from the oil storage box 111 through the suction pipe 115. When the lubricating oil in the pressure chamber 113 is squeezed, it will be discharged through the oil outlet pipe 116.

[0026] In this embodiment, the entire device is installed inside the belt conveyor using the mounting plate 3. When the height of the connecting plate 7 needs to be adjusted, the rotating rod 910 is pressed upwards. The rotating rod 910 moves upwards, causing the rotating block 96 to move upwards. The upward movement of the rotating block 96 causes the push plate 94 to move upwards, and the elastic spring 93 is gradually compressed. When the rotating block 96 moves upwards and causes the groove 97 to fit into the slot 95, the telescopic spring 98 will rebound and cause the arc-shaped block 99 to engage in the slot 95. At this time, when the rotating rod 910 rotates and causes the rotating block 96 to rotate, the engagement of the arc-shaped block 99 and the slot 95 will cause the threaded column 91 to rotate synchronously. When the threaded column 91 rotates, it will drive the lifting column to move. 6. Move along the slide bar 5 to adjust the height of the connecting plate 7. When the rotating rod 910 is released, the spring spring 93 rebounds, causing the push plate 94 to move downwards to its original position. The downward movement of the push plate 94 causes the rotating block 96 and the rotating rod 910 to move downwards to their original position. The arc surface of the arc block 99 is compressed and retracts into the groove 97. The groove 97 and the slot 95 are repositioned. At this time, when the rotating rod 910 is rotated to rotate the rotating block 96, it will not drive the threaded column 91 to rotate, effectively preventing the height of the connecting plate 7 from changing due to accidental contact. During the process of the spring spring 93 rebounding and causing the push plate 94 to move downwards, the rapid movement of the push plate 94 will drive the roller 125 and the opening slot. The friction of the inner wall of 92 causes rapid rotation. The centrifugal force generated by the rapid rotation of roller 125 will throw the friction resistance block 128 out of the square groove 126 and into contact with the inner wall of the opening groove 92. When the rubber friction resistance block 128 contacts the inner wall of the opening groove 92, it will generate a large resistance to slow down the downward movement of push plate 94, preventing push plate 94 from moving downward too fast and causing rotating rod 910 to move downward too fast and hit the operator's hand, effectively improving safety. Pressing up on rotating rod 910 causes rotating rod 910 to move upward, driving rotating block 96 to move upward. When rotating block 96 moves upward, it drives push plate 94 to move upward. The counterweight 117 and piston rod 114 move upwards. The upward movement of piston rod 114 squeezes the lubricating oil in pressure chamber 113, causing the lubricating oil in pressure chamber 113 to be discharged through oil outlet pipe 116. When the spring spring 93 rebounds and push plate 94 moves downwards to return to its original position, the gravity of counterweight 117 causes piston rod 114 to move downwards. At this time, a negative pressure is formed in pressure chamber 113. The negative pressure in pressure chamber 113 draws lubricating oil from oil storage box 111 through oil suction pipe 115 and replenishes pressure chamber 113, thus forming a cycle. The lubricating oil is discharged through oil outlet pipe 116 to lubricate the threads of threaded column 91 and prevent stripping of threads after long-term use.

[0027] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary braking friction damping idler for a downward conveyor belt, characterized in that, It includes a roller body (12) and a cross support (1). The roller body (12) is fixedly connected to a roller support (8) at both ends by bolts. The roller body (12) is provided with a friction damping mechanism inside. The friction damping mechanism includes a fixed rod (121), which is fixedly connected to the roller bracket (8) by bolts. A roller (122) is rotatably connected to the surface of the fixed rod (121). An annular groove (123) is provided in the middle section of the roller (122). A connecting frame (124) is fixedly connected to the inner wall of the annular groove (123). A roller (125) is rotatably connected to the inner side of the connecting frame (124). A square groove (126) is provided on the surface of the roller (125). A compression spring (127) is provided inside the square groove (126). A friction resistance block (128) is slidably connected inside the square groove (126) through the compression spring (127). The end of the roller (125) away from the connecting frame (124) is in close contact with the surface of the fixed rod (121), and the friction resistance block (128) is initially completely inside the square groove (126).

2. The auxiliary braking friction damping idler roller for a downward conveyor belt according to claim 1, characterized in that, The inner side of the horizontal support (1) is fixedly connected with a reinforcing rib (2) and a fixing plate (4). Both ends of the horizontal support (1) are fixedly connected with mounting plates (3). The top of the fixing plate (4) is fixedly connected with a sliding rod (5). The surface of the sliding rod (5) is slidably connected with a lifting column (6). The top of the lifting column (6) is fixedly connected with a connecting plate (7). The top of the connecting plate (7) is fixedly connected with the rotating roller support (8).

3. The auxiliary braking friction damping idler roller for a downward conveyor belt according to claim 2, characterized in that, The top of the fixed plate (4) is provided with an anti-accidental touch adjustment mechanism (9). The anti-accidental touch adjustment mechanism (9) includes a threaded post (91) and a rotating block (96). The threaded post (91) passes through and is rotatably connected to the top of the fixed plate (4). An opening slot (92) is opened on the inner side of the threaded post (91). A spring spring (93) is provided inside the opening slot (92). A push plate (94) is slidably connected inside the opening slot (92) through the spring spring (93). A slot (95) is provided on the inner wall of (92), a groove (97) is provided on the side of the rotating block (96), a telescopic spring (98) is provided inside the groove (97), an arc-shaped block (99) is slidably connected inside the groove (97) through the telescopic spring (98), a rotating rod (910) is fixedly connected to the bottom of the rotating block (96), a slowing mechanism (10) is provided on the side of the push plate (94), and a lubrication mechanism (11) is provided inside the threaded column (91).

4. The auxiliary braking friction damping idler roller for a downward conveyor belt according to claim 3, characterized in that, The rotating block (96) is located in the opening slot (92), and the rotating rod (910) penetrates the bottom of the threaded column (91).

5. The auxiliary braking friction damping idler roller for a downward conveyor belt according to claim 4, characterized in that, The top of the rotating block (96) initially abuts against the bottom of the push plate (94), and the lifting column (6) is threadedly connected to the threaded column (91) through the built-in thread.

6. The auxiliary braking friction damping idler roller for a downward conveyor belt according to claim 5, characterized in that, The end of the arc-shaped block (99) away from the telescopic spring (98) initially abuts against the inner wall of the opening slot (92), and the telescopic spring (98) is initially in a compressed state.

7. The auxiliary braking friction damping idler roller for a downward conveyor belt according to claim 6, characterized in that, The opening size of the slot (95) is equal to the opening size of the groove (97). The number of slots (95) is set to eight groups, and the eight groups of slots (95) are arranged in a circular array on the inner wall of the opening groove (92).

8. The auxiliary braking friction damping idler roller for a downward conveyor belt according to claim 7, characterized in that, The lubrication mechanism (11) includes an oil storage box (111) and a pressure chamber (113). The oil storage box (111) and the pressure chamber (113) are both fixedly connected inside the threaded column (91). An oil injection pipe (112) is fixedly connected through the bottom of the oil storage box (111). A piston rod (114) is slidably connected to the piston inside the pressure chamber (113). A counterweight block (117) is fixedly connected to the bottom of the piston rod (114). An oil suction pipe (115) is fixedly connected through one side of the pressure chamber (113). An oil outlet pipe (116) is fixedly connected through the other side of the pressure chamber (113). The end of the oil suction pipe (115) away from the pressure chamber (113) is fixedly connected through the oil storage box (111). A one-way valve is provided inside both the oil suction pipe (115) and the oil outlet pipe (116).

9. The auxiliary braking friction damping idler roller for a downward conveyor belt according to claim 8, characterized in that, The one-way valve inside the oil suction pipe (115) is for one-way flow into the pressure chamber (113), and the one-way valve inside the oil outlet pipe (116) is for one-way flow into the pressure chamber (113).

10. The auxiliary braking friction damping idler roller for a downward conveyor belt according to claim 1, characterized in that, The friction resistance block (128) is made of rubber, and the end of the friction resistance block (128) away from the compression spring (127) is rough and uneven.

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