A belt conveyor unloading device

Abstract

This invention discloses a material discharge device for a belt conveyor, relating to the field of belt conveyor technology. It includes a first conveyor belt; a protective cover is provided on the upper part of the first conveyor belt; a material discharge pipe is fixedly connected to the bottom end face of the protective cover; a three-way material discharge frame is fixedly connected to the bottom end face of the material discharge pipe; a first chute is fixedly connected to the lower left part of the three-way material discharge frame; and a second chute is fixedly connected to the lower right part of the three-way material discharge frame. The arrangement of the first and second material-blocking rails creates a material accumulation area on the first or second mounting steel plate, absorbing the vibration generated during material impact. Furthermore, the first and second buffer blocks further absorb the vibration generated by the impact, solving the problem that large-particle bulk materials contain enormous kinetic energy, easily causing significant impact on the barrier plate when falling onto it, leading to vibration and thus significant noise.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, and more particularly to a belt conveyor unloading device. Background Technology

[0002] In the mining process, belt conveyors are used to transport the mined materials. To ensure precise control of the material's landing point and to ensure that the material enters the next stage according to the production process requirements, a material discharge device is usually used to control the landing point. Existing material discharge devices typically consist of a protective cover, a discharge pipe, a chute, and baffles. By controlling the position of the baffles to seal the chute at different locations, the landing point of the material is controlled. However, when discharging bulk materials with large flow volumes and high impact forces, large-particle bulk materials falling onto the baffles can easily cause the baffles to vibrate, resulting in significant noise.

[0003] Chinese patent application CN202211358297.X discloses a tubular belt conveyor, specifically including a base with a fixed base and a conveyor box installed on top of the base. A top plate is rotatably connected to the top of the conveyor box, and a feed pipe is connected to the top of the top plate. A protective shell is fixedly connected to the top plate near the feed pipe. A conveyor belt with a drive motor and a support frame installed on the conveyor belt away from the conveyor box are also included. The support frame is fixedly connected to the conveyor box near the base. This invention relates to the field of conveyor technology. This tubular belt conveyor prevents the conveyor belt from shifting at the beginning and end of winding, avoiding material movement and compression damage caused by belt shifting. The barrier plate and limit plate work together to block the material drop point, ensuring the accuracy of material falling onto the conveyor belt.

[0004] Although this invention ensures the accuracy of material falling onto the conveyor belt by setting up a baffle plate to block the material falling position, in the process of unloading bulk materials with large flow volume and high impact force, the large-sized bulk materials contain huge kinetic energy and have extremely strong instantaneous impact force. When they fall onto the baffle plate, they are prone to causing the baffle plate to vibrate and generate a lot of noise. At the same time, due to the large impact force and uneven particle size of the material, it is also very easy to cause blockage inside the chute, affecting the mining production progress and reducing production efficiency. Therefore, this invention proposes a belt conveyor unloading device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a material unloading device for a belt conveyor, which solves the technical problems mentioned in the background art by means of the cooperation of an adjustment mechanism, a spacing adjustment mechanism and an energy storage mechanism.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a belt conveyor unloading device, comprising a first conveyor belt; a protective cover is provided on the upper part of the first conveyor belt; a unloading pipe is fixedly connected to the bottom end face of the protective cover; a three-way unloading frame is fixedly connected to the bottom end face of the unloading pipe; a first chute is fixedly connected to the lower left part of the three-way unloading frame; a second chute is fixedly connected to the lower right part of the three-way unloading frame; a second conveyor belt is provided below the first chute; two first mounting brackets are symmetrically fixedly connected to the right side of the three-way unloading frame; and two second mounting brackets are symmetrically fixedly connected to the right side of the second chute.

[0007] Preferably, a first electric push rod is bolted to the left side of each of the first mounting brackets; a first control slider is fixedly connected to the end of the output shaft of each of the two first electric push rods; a first mounting longitudinal beam is fixedly connected between the two first control sliders; the first mounting longitudinal beam is slidably connected within the three-way discharge frame; a second electric push rod is bolted to the left side of each of the two second mounting brackets; a second control slider is fixedly connected to the end of the output shaft of each of the two second electric push rods; a second mounting longitudinal beam is fixedly connected between the two second control sliders; the second mounting longitudinal beam is slidably connected within the second chute.

[0008] Preferably, a first buffer block is fixedly connected to the top surface of the first mounting longitudinal beam; a second buffer block is fixedly connected to the top surface of the second mounting longitudinal beam.

[0009] Preferably, a first mounting steel plate is fixedly connected to the top surface of the first buffer block; multiple sets of first material-blocking steel rails are fixedly connected to the top surface of the first mounting steel plate in a linear array; a second mounting steel plate is fixedly connected to the top surface of the second buffer block; multiple sets of second material-blocking steel rails are fixedly connected to the top surface of the second mounting steel plate in a linear array.

[0010] Preferably, a set of sealing baffles is fixedly connected to the outside of both first control sliders and both second control sliders; the height of the two sets of sealing baffles is the same as the height of the first control sliders and the two second control sliders, respectively.

[0011] Preferably, a set of auxiliary guide wheels is fixedly connected to the bottom end faces of the two first control sliders and the two second control sliders; two auxiliary guide rails are symmetrically fixedly connected to the outside of the three-way discharge frame and the outside of the second chute; and the four sets of auxiliary guide wheels are slidably connected to the four auxiliary guide rails respectively.

[0012] Preferably, multiple sets of fixing plates are symmetrically fixedly connected inside the material discharge pipe; the multiple sets of fixing plates are arranged in an alternating manner; a dispersion plate is provided on the outside of each set of fixing plates; and a rubber buffer block is provided between each set of dispersion plates and each set of fixing plates.

[0013] Preferably, two crushing rollers are symmetrically rotatably connected inside the first chute and the second chute; a control motor is bolted to the left side of both the first chute and the left side of the second chute; the output shafts of the two control motors are respectively coaxially fixedly connected to the two rear crushing rollers.

[0014] Preferably, a reverse gear is coaxially fixedly connected to the right side of each of the four crushing rollers; the two reverse gears on the same side mesh with each other; a protective shell is fixedly connected to the right side of the first chute and the right side of the second chute; and the two reverse gears on the same side are respectively set in the two protective shells.

[0015] The beneficial effects of this invention are:

[0016] 1. The first or second mounting longitudinal beam is moved by controlling the first or second electric push rod, which can change the direction of material flow in a timely manner according to the actual situation of the material, making the material distribution more uniform. At the same time, the first and second material blocking rails can form a material accumulation area on the first or second mounting steel plate, so that the material forms a pile on the first or second mounting steel plate, absorbing the vibration generated by the impact of the material. The first and second buffer blocks further absorb the vibration generated by the impact. Furthermore, during the movement of the first or second mounting longitudinal beam, the sealing baffle can block the slide groove required for the sliding of the first and second control sliders, so that the slide groove is always in a sealed state, preventing debris or dust generated during the material dropping process from splashing out of the slide groove.

[0017] 2. For bulk materials with large flow volume and high impact force, the dispersion plate and rubber buffer block can effectively reduce the instantaneous impact of the material on the discharge pipe and subsequent connecting parts. At the same time, the elastic buffer of the rubber buffer block can make the material fall more smoothly in the feed hopper, reducing the splashing and rebound of high hardness and large particle size materials due to collision, and making the material flow more concentrated into the discharge device. Furthermore, when the material flow rate is large or the particle size is uneven, the elastic buffer of the rubber buffer block can make the material evenly distributed in the discharge pipe, preventing local accumulation and blockage of the feed inlet.

[0018] 3. The crushing rollers can crush larger materials, allowing them to pass smoothly through the chute. This effectively prevents blockages caused by uneven particle size, ensuring the continuity of material conveying and enabling the material feeding device to operate more stably. It also reduces the impact on the second conveyor belt, thus effectively protecting the conveyor belt, reducing its failure rate, and improving the quality stability of the material, which is beneficial for subsequent processing, handling, or use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the isometric structure of the present invention.

[0020] Figure 2 This is a cross-sectional structural diagram of the protective cover of the present invention.

[0021] Figure 3 This is a cross-sectional view of the material feeding tube of the present invention.

[0022] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0023] Figure 5 This is a schematic diagram of the isometric structure of the auxiliary guide wheel of the present invention.

[0024] Figure 6 This is an isometric structural diagram of the first mounting longitudinal beam of the present invention.

[0025] Figure 7 This is a schematic diagram of the isometric structure of the crushing roller of the present invention.

[0026] Figure 8 This is a rear-view isometric structural schematic diagram of the present invention.

[0027] The attached figures are labeled as follows:

[0028] 1. First conveyor belt; 101. Protective cover; 102. Discharge pipe; 103. Three-way discharge frame; 104. First chute; 105. Second chute; 106. Second conveyor belt; 107. Fixed mounting plate; 108. Dispersion plate; 109. First mounting frame; 110. First electric push rod; 111. First mounting longitudinal beam; 112. First buffer block; 113. First mounting steel plate; 114. First material blocking rail; 115. Second mounting frame; 116. Second electric push rod; 117. Second mounting longitudinal beam; 118. Second buffer block; 119. Second mounting steel plate; 120. Second material blocking rail; 121. First control slider; 122. Sealing baffle; 123. Auxiliary guide wheel; 124. Auxiliary guide rail; 125. Second control slider; 126. Crushing roller; 127. Protective housing; 128. Reverse gear; 129. Control motor. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] In practical use, it was found that during the process of feeding mining materials, baffles are usually used to seal the chutes at different locations to control the flow of materials in different directions. However, when feeding large-volume, large-particle-size bulk materials, the impact force caused by the large-particle-size bulk materials is large. When they fall onto the baffle plate, the baffle plate is prone to vibration, which in turn generates a lot of noise. This embodiment was invented to solve the above problems.

[0032] Please see Figure 1 An embodiment of the present invention provides a material unloading device for a belt conveyor, comprising a first conveyor belt 1; a protective cover 101 is provided on the upper part of the first conveyor belt 1; a material unloading pipe 102 is fixedly connected to the bottom end face of the protective cover 101; a three-way material unloading frame 103 is fixedly connected to the bottom end face of the material unloading pipe 102; a first chute 104 is fixedly connected to the lower left part of the three-way material unloading frame 103; a second chute 105 is fixedly connected to the lower right part of the three-way material unloading frame 103; a second conveyor belt 106 is provided below the first chute 104; two first mounting brackets 109 are symmetrically fixedly connected to the right part of the three-way material unloading frame 103; and two second mounting brackets 115 are symmetrically fixedly connected to the right part of the second chute 105.

[0033] Please see Figures 1-4 Each of the two first mounting brackets 109 has a first electric push rod 110 bolted to its left side; each of the two first electric push rods 110 has a first control slider 121 fixedly connected to its output shaft; a first mounting longitudinal beam 111 is fixedly connected between the two first control sliders 121; the first mounting longitudinal beam 111 is slidably connected within the three-way discharge rack 103; each of the two second mounting brackets 115 has a second electric push rod 116 bolted to its left side; each of the two second electric push rods 116 has a second control slider 125 fixedly connected to its output shaft; a second mounting longitudinal beam 117 is fixedly connected between the two second control sliders 125; the second mounting longitudinal beam 117 is slidably connected within the second chute 105.

[0034] Please see Figures 4-6 The top surface of the first mounting longitudinal beam 111 is fixedly connected to a first buffer block 112; the top surface of the second mounting longitudinal beam 117 is fixedly connected to a second buffer block 118.

[0035] Please see Figures 4-6 The top surface of the first buffer block 112 is fixedly connected to a first mounting steel plate 113; the top surface of the first mounting steel plate 113 is fixedly connected to multiple sets of first material blocking steel rails 114 in a linear array; the top surface of the second buffer block 118 is fixedly connected to a second mounting steel plate 119; the top surface of the second mounting steel plate 119 is fixedly connected to multiple sets of second material blocking steel rails 120 in a linear array.

[0036] Please see Figures 1-5 A set of sealing baffles 122 is fixedly connected to the outside of the two first control sliders 121 and the two second control sliders 125; the height of the two sets of sealing baffles 122 is the same as the height of the first control sliders 121 and the two second control sliders 125, respectively.

[0037] Please see Figure 4 and Figure 5 A set of auxiliary guide wheels 123 are fixedly connected to the bottom surfaces of the two first control sliders 121 and the two second control sliders 125; two auxiliary guide rails 124 are symmetrically fixedly connected to the outside of the three-way discharge rack 103 and the outside of the second chute 105; the four sets of auxiliary guide wheels 123 are slidably connected to the four auxiliary guide rails 124 respectively.

[0038] During the material unloading process, workers can activate the first electric push rod 110 or the second electric push rod 116 to move the first control slider 121 or the second control slider 125. As the first control slider 121 or the second control slider 125 moves, the first mounting beam 111 or the second mounting beam 117 slides within the three-way unloading frame 103 and the second chute 105, respectively, adjusting the flow direction and switching the flow direction according to the actual material conditions. The first buffer block 112 and the second buffer block 118 provide buffer protection for the first mounting beam 111 and the second mounting beam 117, reducing the impact of large-particle materials on them. When the material falls to the first... When mounted on the first mounting steel plate 113 or the second mounting steel plate 119, the first material blocking rail 114 and the second material blocking rail 120 form a material accumulation area, causing the material to form a pile on the first mounting steel plate 113 or the second mounting steel plate 119, absorbing the vibration generated when the material is impacted and reducing noise. The sealing baffle 122 can block the slide groove required for the sliding of the first control slider 121 and the second control slider 125, keeping the slide groove in a sealed state and preventing debris or dust generated during the material dropping process from splashing out of the slide groove. At the same time, during the movement of the first control slider 121 or the second control slider 125, the auxiliary guide wheel 123 will move within the auxiliary guide rail 124, ensuring the smooth movement of the first control slider 121 or the second control slider 125.

[0039] In summary, by controlling the movement of the first mounting longitudinal beam 111 or the second mounting longitudinal beam 117 through the first electric push rod 110 or the second electric push rod 116, the direction of the material flow can be changed in a timely manner according to the actual situation of the material, making the material distribution more uniform. At the same time, the setting of the first material blocking rail 114 and the second material blocking rail 120 can form a material accumulation area on the first mounting steel plate 113 or the second mounting steel plate 119, so that the material forms a pile on the first mounting steel plate 113 or the second mounting steel plate 119, absorbing the vibration generated by the impact of the material. The first buffer block 112 and the second buffer block 118 further absorb the vibration generated by the impact. Furthermore, during the movement of the first mounting longitudinal beam 111 or the second mounting longitudinal beam 117, the setting of the sealing baffle 122 can block the slide groove required for the sliding of the first control slider 121 and the second control slider 125, so that the slide groove is always in a sealed state, preventing debris or dust generated during the material dropping process from splashing out of the slide groove.

[0040] Example 2:

[0041] Based on the above embodiments, it was found during use that, in the process of feeding bulk materials with large impact force, large particle size, and high hardness, although there is a material pile and the buffering of the first buffer block 112 and the second buffer block 118, before the material pile is formed, the material that falls directly onto the first mounting steel plate 113 or the second mounting steel plate 119 will still cause a large impact on the first mounting steel plate 113 or the second mounting steel plate 119 even though it is only buffered by the first buffer block 112 and the second buffer block 118. In order to solve the above problems, further improvements were made to the above embodiments.

[0042] Based on Example 1, please refer to Figure 1 and Figure 3 As shown, it includes a fixed mounting plate 107 and a dispersion plate 108;

[0043] Multiple sets of fixed mounting plates 107 are symmetrically fixedly connected inside the material discharge pipe 102; the multiple sets of fixed mounting plates 107 are arranged in an alternating manner; a dispersion plate 108 is provided on the outside of each of the multiple sets of fixed mounting plates 107; a rubber buffer block is provided between each of the multiple sets of dispersion plates 108 and the multiple sets of fixed mounting plates 107.

[0044] When the material passes through the discharge pipe 102, it will pass through multiple sets of dispersion plates 108. After the material falls onto the dispersion plates 108, the impact of the material is buffered by the elasticity of the rubber buffer block itself, protecting the subsequent discharge device components.

[0045] In summary, for bulk materials with large flow volume and high impact force, the dispersing plate 108 and rubber buffer block can effectively reduce the instantaneous impact of the material on the discharge pipe 102 and subsequent connecting parts. At the same time, the elastic buffer of the rubber buffer block can make the material fall more smoothly in the feed hopper, reducing the splashing and rebound of high-hardness and large-particle-size materials due to collision, and making the material flow more concentrated into the discharge device. Furthermore, when the material flow rate is large or the particle size is uneven, the elastic buffer of the rubber buffer block can make the material evenly distributed in the discharge pipe 102, preventing local accumulation and blockage of the feed inlet.

[0046] Example 3:

[0047] Based on the above embodiments, it was found during use that when materials with large flow rates and large particle sizes are fed through the first chute 104 and the second chute 105, the uneven particle size of the fed materials can easily cause the excessively large particles to clog the first chute 104 and the second chute 105, affecting the continuity and stability of the material feeding process. To solve the above problems, further improvements were made to the above embodiments.

[0048] Based on Example 1, please refer to Figure 1 , Figure 4 and Figure 7 As shown, it includes a crushing roller 126, a protective housing 127, a reverse gear 128, and a control motor 129;

[0049] Two crushing rollers 126 are symmetrically rotatably connected inside the first chute 104 and the second chute 105; a control motor 129 is bolted to the left part of the first chute 104 and the left part of the second chute 105; the output shafts of the two control motors 129 are coaxially fixedly connected to the two rear crushing rollers 126 respectively.

[0050] Each of the four crushing rollers 126 has a reverse gear 128 fixedly connected to its right side on the same axis; the two reverse gears 128 on the same side mesh with each other; the right side of the first chute 104 and the right side of the second chute 105 are both fixedly connected to a protective housing 127; the two reverse gears 128 on the same side are respectively set inside the two protective housings 127.

[0051] By starting the control motor 129, the control motor 129 drives the rear crushing roller 126 to rotate. As the rear crushing roller 126 rotates, it drives the front crushing roller 126 to rotate in the opposite direction through the reverse gear 128. Since there is a certain gap between the crushing rollers 126, materials of the correct size will fall through the gap between the crushing rollers 126, while larger materials will be crushed by the rotating crushing rollers 126 when they pass through, making the particle size of the material more uniform.

[0052] In summary, the crushing roller 126 can crush larger materials, allowing them to pass smoothly through the chute. This effectively prevents blockages caused by uneven material particle size, ensures the continuity of material conveying, and enables the material discharge device to operate more stably. It also reduces the impact on the second conveyor belt 106, thereby effectively protecting the conveyor belt, reducing its failure rate, and improving the quality stability of the material, which is beneficial for subsequent processing, handling, or use.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A material discharge device for a belt conveyor, comprising a first conveyor belt (1); a protective cover (101) is provided on the upper part of the first conveyor belt (1); a material discharge pipe (102) is fixedly connected to the bottom end face of the protective cover (101); characterized in that, A three-way discharge frame (103) is fixedly connected to the bottom end face of the discharge pipe (102); a first chute (104) is fixedly connected to the lower left part of the three-way discharge frame (103); a second chute (105) is fixedly connected to the lower right part of the three-way discharge frame (103); a second conveyor belt (106) is provided at the lower part of the first chute (104); two first mounting brackets (109) are symmetrically fixedly connected to the right part of the three-way discharge frame (103); two second mounting brackets (115) are symmetrically fixedly connected to the right part of the second chute (105). The left side of the first mounting bracket (109) is bolted with a first electric push rod (110); the ends of the output shafts of the two first electric push rods (110) are fixedly connected to a first control slider (121); a first mounting longitudinal beam (111) is fixedly connected between the two first control sliders (121); the first mounting longitudinal beam (111) is slidably connected inside the three-way material drop frame (103); a first buffer block (112) is fixedly connected to the top surface of the first mounting longitudinal beam (111), the first buffer block... The top surface of (112) is fixedly connected to a first mounting steel plate (113); the top surface of the first mounting steel plate (113) is fixedly connected to multiple sets of first material blocking steel rails (114) in a linear array; multiple sets of fixed mounting plates (107) are symmetrically fixedly connected inside the material drop pipe (102); the multiple sets of fixed mounting plates (107) are arranged in an alternating manner; a dispersion plate (108) is provided on the outside of each of the multiple sets of fixed mounting plates (107); a rubber buffer block is provided between each of the multiple sets of dispersion plates (108) and the multiple sets of fixed mounting plates (107); A second electric push rod (116) is bolted to the left side of each of the two second mounting brackets (115); a second control slider (125) is fixedly connected to the end of the output shaft of each of the two second electric push rods (116); a second mounting longitudinal beam (117) is fixedly connected between the two second control sliders (125); the second mounting longitudinal beam (117) is slidably connected inside the second chute (105).

2. The material unloading device for a belt conveyor according to claim 1, characterized in that: The top surface of the second mounting longitudinal beam (117) is fixedly connected to the second buffer block (118).

3. The belt conveyor unloading device according to claim 2, characterized in that: The top surface of the second buffer block (118) is fixedly connected to a second mounting steel plate (119); the top surface of the second mounting steel plate (119) is fixedly connected to multiple sets of second material-blocking steel rails (120) in a linear array.

4. The belt conveyor unloading device according to claim 3, characterized in that: A set of sealing baffles (122) is fixedly connected to the outside of the two first control sliders (121) and the outside of the two second control sliders (125); the height of the two sets of sealing baffles (122) is the same as the height of the first control slider (121) and the two second control sliders (125).

5. The belt conveyor unloading device according to claim 4, characterized in that: A set of auxiliary guide wheels (123) are fixedly connected to the bottom end surfaces of the two first control sliders (121) and the two second control sliders (125); two auxiliary guide rails (124) are symmetrically fixedly connected to the outside of the three-way discharge rack (103) and the outside of the second chute (105); the four sets of auxiliary guide wheels (123) are slidably connected in the four auxiliary guide rails (124).

6. The belt conveyor unloading device according to claim 5, characterized in that: Two crushing rollers (126) are symmetrically rotatably connected inside the first chute (104) and the second chute (105); a control motor (129) is bolted to the left side of the first chute (104) and the left side of the second chute (105); the output shafts of the two control motors (129) are coaxially fixedly connected to the two rear crushing rollers (126) respectively.

7. The belt conveyor unloading device according to claim 6, characterized in that: Each of the four crushing rollers (126) has a reverse gear (128) fixedly connected to its right side on the same axis; the two reverse gears (128) on the same side mesh with each other; the right side of the first chute (104) and the right side of the second chute (105) are both fixedly connected to a protective shell (127); the two reverse gears (128) on the same side are respectively set in the two protective shells (127).

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