Spring buffer device of belt conveyor

Abstract

The utility model discloses a belt conveyor spring buffering device, which relates to the field of belt conveyor buffering devices, and comprises a base, a spring seat is mounted on the base, a bearing plate is mounted on the spring seat, a plurality of pressing rods are fixedly connected to the bearing plate towards the base, and an energy absorption box coaxial with the pressing rods is arranged on the base. The bottom end of the pressing rod extends into the energy absorption box and is connected with a pressing plate, a plurality of through openings are annularly formed in the pressing plate at intervals, one-way pressing pieces capable of covering the through openings are connected to the centers of the through openings in an up-down sliding mode, through holes are formed in the centers of the one-way pressing pieces, and the energy absorption box is filled with liquid for energy absorption. The elastic potential energy released by the spring is absorbed when the bearing plate moves upwards, so that the bearing plate is prevented from quickly resetting upwards, and raw materials on the conveying belt are effectively prevented from being raised due to the quick upward resetting of the bearing plate.

Description

Technical Field

[0001] The utility model relates to the field of belt conveyor buffer devices, in particular to a belt conveyor spring buffer device. Background Art

[0002] In current industrial production, belt conveyors are widely used in various occasions where material transportation is required. Belt conveyor buffer devices can buffer the falling materials, reducing the dust generated by the falling materials and preventing the raw materials from being broken due to excessive impact.

[0003] Existing belt conveyor spring buffer devices generally adopt a bearing plate that fits the belt. A shock-absorbing spring structure is installed between the bottom surface of the bearing plate and the base, and the spring is compressed to deform to buffer the falling materials.

[0004] In view of the above related technologies, existing belt conveyor spring buffer devices only use spring structures to relieve the impact of falling materials. When the flow rate of the falling materials is uneven or intermittent, the raw materials falling on the conveyor belt press down the bearing plate, and the spring accumulates elastic potential energy. Since there is no structure to absorb the elastic potential energy of the spring, when the downward impact force is less than the elastic force of the spring, the elastic force released by the spring upward is likely to cause the raw materials on the conveyor belt to be lifted upward, further aggravating the dust generated by the falling materials. In summary, existing belt conveyor spring buffer devices are not easy to buffer the conveyor belt smoothly. Summary of the Utility Model

[0005] Based on this, the purpose of the present utility model is to provide a belt conveyor spring buffer device to solve the technical problem that existing belt conveyor spring buffer devices are not easy to buffer the conveyor belt smoothly.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: A belt conveyor spring buffer device includes a base, a spring seat is installed on the base, a bearing plate is installed on the spring seat, a plurality of pressure rods are fixedly connected to the bearing plate facing the base, an energy absorption box coaxial with the pressure rods is arranged on the base, the bottom end of the pressure rod extends into the energy absorption box and is connected with a pressure plate, a plurality of through holes are arranged at intervals in a ring shape on the pressure plate, a one-way pressure piece capable of covering the through holes is slidably connected up and down at the center of the through hole, a through hole is arranged at the center of the one-way pressure piece, and the energy absorption box is filled with liquid for energy absorption.

[0007] By adopting the above technical solution, when the bearing plate moves upward, the elastic potential energy released by the spring is absorbed, thereby avoiding the rapid upward reset of the bearing plate and effectively preventing the raw materials on the conveyor belt from being lifted due to the rapid upward reset of the bearing plate.

[0008] The present utility model is further configured such that a carrying box is connected to the carrying plate at intervals. The carrying boxes are parallel to each other and are all arranged along the length direction of the carrying plate. A carrying belt capable of circular motion is connected inside the carrying box, and the top surface of the carrying belt is higher than the top surface of the carrying box.

[0009] By adopting the above technical solution, when the conveyor belt is impacted downward, it can effectively prevent the conveyor belt from being pressed to stop.

[0010] The present utility model is further configured such that a socket platform is fixedly connected to the inner wall of the carrying box, and the edges of the inner wall of the carrying belt are all in contact with the socket platform.

[0011] By adopting the above technical solution, it effectively prevents the middle part of the carrying belt from deforming due to pressure.

[0012] The present utility model is further configured such that the rotating shaft at one end of the carrying belt is rotatably connected to one end of the carrying box. Sliding grooves are provided on both sides at the other end of the carrying box. The rotating shaft at the other end of the carrying belt is rotatably connected to a slider, and the slider is slidably connected to the sliding groove. A connecting platform is fixedly connected to the carrying box on the side of the sliding groove close to the center of the carrying box, and an adjusting bolt is provided between the connecting platform and the slider.

[0013] By adopting the above technical solution, the installation of the carrying belt is completed conveniently.

[0014] The present utility model is further configured such that the part of the one-way pressing piece above the pressing plate can cover the through opening, and the part below the pressing plate can prevent the one-way pressing piece from separating from the pressing plate.

[0015] By adopting the above technical solution, the limiting structure on the one-way pressing piece can effectively prevent the one-way pressing piece from separating from the pressing plate.

[0016] The present utility model is further configured such that four through openings are provided on the pressing plate.

[0017] By adopting the above technical solution, it makes the carrying plate not rise rapidly, thereby effectively preventing the raw materials from being lifted.

[0018] The present utility model is further configured such that the cross-sectional area of the through hole is not greater than one-fifth of the cross-sectional area of the through opening.

[0019] By adopting the above technical solution, the resistance of the pressing plate moving downward is reduced.

[0020] In summary, the present utility model mainly has the following beneficial effects:

[0021] 1. The utility model absorbs the elastic potential energy released by the spring when the bearing plate moves upward by arranging a one-way energy absorption structure between the bearing plate and the base, thereby avoiding the rapid upward reset of the bearing plate and effectively preventing the raw materials on the conveyor belt from being lifted due to the rapid upward reset of the bearing plate.

[0022] 2. The utility model arranges bearing box structures at intervals on the bearing plate, and arranges a bearing belt in the bearing box along the conveying direction of the conveyor belt. When the conveyor belt is subjected to a large impact and applies pressure to the bearing belt, the contact surface between the bearing belt and the conveyor belt does not undergo relative sliding, and the bearing belt avoids the conveyor belt from being pressed and stopped by heavy objects through cyclic movement. Description of the Drawings

[0023] Figure 1 is a three-dimensional view of the utility model;

[0024] Figure 2 is a three-dimensional view of the bearing box of the utility model;

[0025] Figure 3 is of the utility model Figure 2 is an enlarged view of A in

[0026] Figure 4 is a three-dimensional view of the internal structure of the bearing box of the utility model;

[0027] Figure 5 is of the utility model Figure 4 is an enlarged view of B in

[0028] Figure 6 is a three-dimensional view of the internal structure of the energy absorption box in the state where the pressing rod is not pressed down of the utility model;

[0029] Figure 7 is a three-dimensional view of the internal structure of the energy absorption box in the state where the pressing rod is pressed down of the utility model;

[0030] Figure 8 is a three-dimensional view of the internal structure of the energy absorption box in the state where the pressing rod is pressed down from another perspective of the utility model.

[0031] In the figure: 1. Base; 2. Spring seat; 3. Bearing plate; 4. Bearing box; 5. Bearing belt; 6. Slide groove; 7. Slide block; 8. Connection platform; 9. Socket platform; 10. Energy absorption box; 11. Pressing rod; 12. Pressing plate; 13. Through hole; 14. One-way pressing piece; 15. Through hole. Detailed Embodiments

[0032] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0033] The following describes an embodiment of the utility model based on its overall structure.

[0034] Embodiment 1

[0035] A belt conveyor spring buffer device, such as Figure 1-8 As shown, it includes a base 1, a spring seat 2 is installed on the base 1, a bearing plate 3 is installed on the spring seat 2, a plurality of pressure rods 11 are fixedly connected to the bearing plate 3 toward the base 1, an energy absorption box 10 coaxial with the pressure rod 11 is provided on the base 1, the bottom end of the pressure rod 11 extends into the energy absorption box 10 and is connected with a pressure plate 12, specifically, the energy absorption box 10 is provided with a shaft seal at the position where the pressure rod 11 passes through, a plurality of through openings 13 are arranged at annular intervals on the pressure plate 12, a one-way pressure sheet 14 that can cover the through opening 13 is slidably connected to the center of the through opening 13 up and down, a through hole 15 is arranged at the center of the one-way pressure sheet 14, and the energy absorption box 10 is filled with liquid for energy absorption, specifically, the liquid for energy absorption is hydraulic oil.

[0036] See also Figure 1 , Figures 6-8 The part of the one-way pressing piece 14 located above the pressing plate 12 can cover the through-hole 13, while the part located below the pressing plate 12 can prevent the one-way pressing piece 14 from being separated from the pressing plate 12. The limiting structure on the one-way pressing piece 14 can effectively prevent the one-way pressing piece 14 from being separated from the pressing plate 12, and plays the role of closing the through-hole 13 when the pressing plate 12 moves upward. Four through-holes 13 are arranged on the pressing plate 12, and the four through-holes 13 arranged on the pressing plate 12 can maintain a large fluid flux. When the pressing plate 12 moves downward rapidly, it can cooperate with the spring to play a certain buffering role, and when the pressing plate 12 moves upward, it can effectively consume the elastic potential energy of the spring, so that the supporting plate 3 will not rise rapidly, thereby effectively avoiding the lifting of the raw materials. The cross-sectional area of ​​the through hole 15 is not greater than one-fifth of the cross-sectional area of ​​the through-hole 13, which reduces the resistance of the downward movement of the pressing plate 12, so that the pressing plate 12 can move downward rapidly into place, and plays a good damping role in the process of the upward movement of the pressing plate 12.

[0037] Embodiment 2

[0038] A belt conveyor spring buffer device, such as Figure 1-8As shown in the figure, on the basis of the first embodiment, the difference from the first embodiment is that a bearing box 4 is connected to the bearing plate 3 at intervals. The bearing boxes 4 are parallel to each other and are all arranged along the length direction of the bearing plate 3. A bearing belt 5 capable of circular motion is connected inside the bearing box 4. The top surface of the bearing belt 5 is higher than the top surface of the bearing box 4. A socket table 9 is fixedly connected to the inner wall of the bearing box 4. The edges of the inner wall of the bearing belt 5 are in contact with the socket table 9. The contact surface between the socket table 9 and the bearing belt 5 is a smooth surface. The socket table 9 can provide good support for the bearing belt 5, effectively preventing the middle part of the bearing belt 5 from deforming due to pressure. Since the top surface of the bearing belt 5 is higher than the bearing box 4, when the conveyor belt is impacted, it will contact the bearing belt 5. The contact surface between the bearing belt 5 and the conveyor belt is relatively stationary. At the same time, the sliding friction coefficient between the inner wall of the bearing belt 5 and the socket table 9 is small. At this time, the bearing belt 5 can circularly move to maintain the normal conveying of the conveyor belt. By using the bearing belt 5 capable of circular motion on the bearing box 4 to contact the conveyor belt, it can effectively prevent the conveyor belt from being pressed and stopped when the conveyor belt is impacted downward.

[0039] Please refer to Figures 1-5 , one end of the rotating shaft of the bearing belt 5 is rotatably connected to one end of the bearing box 4. Chutes 6 are arranged on both sides of the other end of the bearing box 4. The rotating shaft at the other end of the bearing belt 5 is rotatably connected to a slider 7. The slider 7 is slidably connected to the chute 6. A connecting platform 8 is fixedly connected to the bearing box 4 on the side of the chute 6 close to the center of the bearing box 4. An adjusting bolt is arranged between the connecting platform 8 and the slider 7. When installing the bearing belt 5, the bearing belt 5 can be first sleeved on the socket table 9, then passed through the rotating shaft rotatably connected to the bearing box 4, and then after the slider 7 slides close to the center of the bearing box 4, passed through another rotating shaft, and then the slider 7 is slid away from the center of the bearing box 4 to tension the bearing belt 5, and then the adjusting bolt between the connecting platform 8 and the slider 7 is screwed to further tension the bearing belt 5, thereby conveniently completing the installation of the bearing belt 5.

[0040] The working principle of the present invention is as follows: when the conveyor belt is impacted downward, the surface of the conveyor belt in contact with the multiple bearing belts 5 is relatively stationary, and the bearing belt 5 circularly moves to maintain the normal movement of the conveyor belt, effectively preventing the conveyor belt from being pressed and stopped. When the conveyor belt is impacted, the pressure rod 11 moves downward to make the pressing plate 12 descend. At this time, the fluid in the energy absorption box 10 pushes the one-way pressing piece 14 upward through the through port 13. The fluid flows through the through hole 15 and the through port 13 to the upper part of the pressing plate 12. When the spring releases elastic potential energy, the pressure rod 11 moves upward. When the fluid above the pressing plate 12 flows through the through hole 15, it exerts a downward force on the one-way pressing piece 14 to make the one-way pressing piece 14 press tightly on the through port 13. At this time, only the through hole 15 allows the fluid to pass through. The process of the fluid passing through the small hole can effectively absorb the elastic potential energy of the spring, thereby making the bearing plate 3 rise slowly and preventing the raw materials from being lifted due to the rapid rise of the bearing plate 3.

[0041] Although embodiments of the present utility model have been shown and described, the specific embodiments are only interpretations of the present utility model and not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A belt conveyor spring buffer device, comprising a base (1), a spring seat (2) being mounted on the base (1), a bearing plate (3) being mounted on the spring seat (2), characterized in that: The bearing plate (3) is fixedly connected to a plurality of pressure rods (11) facing the base (1); an energy absorption box (10) coaxial with the pressure rods (11) is arranged on the base (1); the bottom end of the pressure rod (11) extends into the energy absorption box (10) and is connected to a pressure plate (12); a plurality of through openings (13) are arranged at intervals in an annular shape on the pressure plate (12); a one-way pressure sheet (14) capable of covering the through opening (13) is slidably connected to the center of the through opening (13) up and down; a through hole (15) is arranged at the center of the one-way pressure sheet (14); and the energy absorption box (10) is filled with liquid for energy absorption.

2. The belt conveyor spring buffer device according to claim 1, characterized in that: The carrying plate (3) is connected to carrying boxes (4) at intervals. The carrying boxes (4) are parallel to each other and are arranged along the length direction of the carrying plate (3). The carrying boxes (4) are connected to carrying belts (5) capable of cyclic movement. The top surface of the carrying belt (5) is higher than the top surface of the carrying boxes (4).

3. The belt conveyor spring buffer device according to claim 2, characterized in that: The inner wall of the carrying box (4) is fixedly connected with a sleeve platform (9), and the edges of the inner wall of the carrying belt (5) are in contact with the sleeve platform (9).

4. The belt conveyor spring buffer device according to claim 2, characterized in that: The rotating shaft at one end of the carrying belt (5) is rotatably connected to one end of the carrying box (4), and slide grooves (6) are arranged on both sides of the other end of the carrying box (4). The rotating shaft at the other end of the carrying belt (5) is rotatably connected to a slider (7), and the slider (7) is slidably connected to the slide groove (6). The carrying box (4) is fixedly connected to a connecting platform (8) on one side of the slide groove (6) close to the center of the carrying box (4), and an adjusting bolt is arranged between the connecting platform (8) and the slider (7).

5. The belt conveyor spring buffer device according to claim 1, characterized in that: The portion of the one-way pressing sheet (14) located above the pressing plate (12) can cover the through opening (13), while the portion located below the pressing plate (12) can prevent the one-way pressing sheet (14) from being separated from the pressing plate (12).

6. The belt conveyor spring buffer device according to claim 1, characterized in that: Four through openings (13) are provided on the pressure plate (12).

7. The belt conveyor spring buffer device according to claim 1, characterized in that: The cross-sectional area of ​​the through hole (15) is no greater than one fifth of the cross-sectional area of ​​the through opening (13).

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