Material conveying device for stabilized soil mixing station

Abstract

The invention discloses a material conveying device for a stabilized soil mixing station, and particularly relates to material conveying equipment, the material conveying device comprises a conveying belt, the conveying belt comprises a rack and a belt surface, a plurality of supporting frames in a linear array are arranged on the rack, the supporting frames comprise bottom rollers arranged on the rack and side rollers symmetrically arranged along the bottom rollers, and the belt surface is arranged on the side rollers. The section of the belt surface is limited to be in a concave shape; one end of each side roller is rotationally connected to the rack, the other end of each side roller and the rack are elastically connected with a buffering assembly, and the side rollers deflect along with increase of material loads, so that the belt face concave amplitude is increased in a self-adaptive mode. The side rollers capable of deflecting are used for supporting the belt face, when the multiple discharging belts convey different materials to the belt face at the same time, and two strands of materials are stacked on the belt face, the side rollers can deflect due to the weight of the materials, so that the concave amplitude of the belt face is increased, the gradient of the two sides of the belt face is increased, and the materials are not prone to sliding out of the belt face.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying systems, and more particularly to a material transmission device for a stabilized soil mixing plant. Background Art

[0002] The conveying device of the stabilized soil batching plant is mostly a belt conveyor, which conveys the building materials in the hopper to the belt conveyor according to a ratio and conveys them to the subsequent mixing place.

[0003] According to the patent number CN214058966U, the publication (announcement) date: August 27, 2021, a material transmission device for a stabilized soil mixing plant is disclosed, which relates to the technical field of mixing plant equipment. The utility model includes a material transmission frame. On one side in the transverse direction of the material transmission frame, there is a main driving roller, and on the other side in the transverse direction of the material transmission frame, there is a secondary roller. The main driving roller and the secondary roller are connected by a belt drive. On the front side of the material transmission frame, there is a first protection plate hinged, and on the rear side of the material transmission frame, there is a second protection plate hinged. The first protection plate and the second protection plate can be butted into a housing, and the housing formed by butting the first protection plate and the second protection plate covers the upper side of the material transmission frame. An adjusting mechanism for driving the first protection plate and the second protection plate to move is arranged in the material transmission frame. The utility model solves the problem that the existing material transmission device does not have the functions of dust prevention, rain prevention, and sun protection.

[0004] In the prior art including the above patent, when conveying materials by a conveyor belt, materials from different hoppers are conveyed to the conveyor belt by multiple feeding belts. During continuous operation, multiple sections of materials will be stacked in multiple layers on the conveyor belt in sequence. When the total feeding amount increases, since the concave contour formed by the auxiliary rollers supporting the conveyor belt is fixed, the materials are likely to slide out of the conveyor belt from the edge as the thickness of the stacked materials increases. Summary of the Invention

[0005] The purpose of the present invention is to provide a material transmission device for a stabilized soil mixing plant, aiming to solve the above problems.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A material transmission device for a stabilized soil mixing plant includes a conveyor belt, which respectively includes: a frame and a belt surface. A plurality of support frames arranged in a linear array are arranged on the frame, which includes a bottom roller arranged on the frame and side rollers symmetrically arranged along the bottom roller to limit the cross-section of the belt surface to be concave. One end of the side roller is rotatably connected to the frame, and the other end is elastically connected to the frame with a buffer component. The side roller deflects as the material load increases, so that the concave amplitude of the belt surface increases adaptively.

[0007] Preferably, a connecting seat for allowing the bottom roller to slide in the vertical direction is arranged on the frame, and the bottom roller slides as the material load increases, so that the concave amplitude of the belt surface increases adaptively.

[0008] Preferably, the material accumulates on the belt surface, driving the belt surface to sag, causing the side rollers and the side rollers on the adjacent support frames to deflect.

[0009] Preferably, the material accumulates on the belt surface, driving the belt surface to sag, causing the side rollers on one side of the support frame to deflect and the other side roller to deflect along with the buffer assembly.

[0010] Preferably, a moving frame is slidably connected to the connecting seat, an elastic member is arranged between the two, and the bottom roller is rotatably connected to the moving frame.

[0011] Preferably, extension rollers are coaxially and movably arranged on both sides of the bottom roller, and the deflection of the side roller pulls the extension rollers to extend.

[0012] Preferably, the side roller includes a deflection plate and a side turning roller, and a connecting torsion spring is arranged between adjacent deflection plates on the same side.

[0013] Preferably, the buffer assembly includes a connecting pipe containing a conduction medium, push heads are respectively arranged at both ends of the connecting pipe, and the push heads respectively abut against the two side rollers.

[0014] Preferably, the conduction medium includes a number of ball bearings, and a second spring is arranged between the two ball bearings.

[0015] Preferably, a first spring is arranged between one end of the extension roller and the bottom roller, and a connecting bar is hinged between the other end of the extension roller and the side roller.

[0016] In the above technical solution, a material transmission device for a stabilized soil mixing plant provided by the present invention has the following beneficial effects: by using deflectable side rollers as the support for the belt surface, when different materials are simultaneously conveyed from multiple feeding belts to the belt surface and two materials are stacked on the belt surface, the side rollers will deflect due to the weight of the materials, thereby increasing the sag amplitude of the belt surface to increase the slopes on both sides of the belt surface, making it difficult for the materials to slide out of the belt surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the belt surface, frame and support frame provided by the embodiment of the present invention; Figure 2Schematic diagram of the support frame structure provided by the embodiment of the present invention; Figure 3 Schematic diagram of the structures of the support frame and the buffer assembly provided by the embodiment of the present invention; Figure 4 Exploded schematic diagram of the structures of the support frame and the buffer assembly provided by the embodiment of the present invention; Figure 5 For Figure 4 Enlarged schematic diagram at position A in Figure 6 Schematic cross-sectional view of the support frame structure provided by the embodiment of the present invention; Figure 7 For Figure 6 Enlarged schematic diagram at position B in Figure 8 Schematic cross-sectional view of the buffer assembly structure provided by the embodiment of the present invention; Figure 9 Schematic cross-sectional view of the support frame and the belt surface provided by the embodiment of the present invention; Figure 10 Schematic cross-sectional view of another state of the support frame and the belt surface provided by the embodiment of the present invention; Figure 11 Schematic diagram of the mixing station provided by the embodiment of the present invention.

[0019] Explanation of reference numerals: 1. Belt surface; 11. Frame; 2. Support frame; 20. Connecting strip; 21. Bottom roller; 211. Concave groove; 212. Extension roller; 213. First spring; 214. First connecting head; 22. Side roller; 221. Deflection plate; 222. Side turning roller; 2221. Second connecting head; 223. Extension plate; 2231. Lining plate; 23. Connecting seat; 231. Moving frame; 24. Side fixing frame; 3. Buffer assembly; 31. Connecting pipe; 311. First pushing head; 312. Second pushing head; 32. Connecting plate; 321. Guide groove; 33. Conductive medium; 331. Ball; 332. Second spring; 4. Connecting torsion spring; 5. Hopper; 51. Feeding belt; 52. Screw mixer. Detailed implementation manners

[0020] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0021] As Figures 1-11As shown in the figure, a material transmission device for a stabilized soil mixing plant includes a conveyor belt, which respectively includes: a frame 11 and a belt surface 1. A plurality of support frames 2 arranged in a linear array are disposed on the frame 11. The support frames 2 include a bottom roller 21 disposed on the frame 11 and side rollers 22 symmetrically arranged along the bottom roller 21 to limit the cross-section of the belt surface 1 to be concave; One end of the side roller 22 is rotatably connected to the frame 11, and the other end is elastically connected to the frame 11 with a buffer assembly 3. The side roller 22 deflects as the material load increases, so that the depression amplitude of the belt surface 1 increases adaptively.

[0022] Specifically, as Figure 11 shown, a blanking belt 51 is disposed in the outlet direction of the hopper 5. The blanking belt 51 is a conveyor belt arranged perpendicular to the conveyor belt to convey materials to the screw mixer 52 in proportion. It is a specific model of the existing technology of the stabilized soil mixing plant, WBZ500 stabilized soil mixing plant, which will not be elaborated. The buffer assembly 3 can be a spring.

[0023] A side fixing frame 24 is provided on the frame 11, and the side roller 22 is rotatably connected to the side fixing frame 24 to Figure 6 and Figure 9 As shown, the upper end of the side roller 22 (taking Figure 6 as a reference to distinguish the upper and lower ends) is rotatably connected to the side fixing frame 24, and the lower end of the side roller 22 is elastically connected to the frame 11 through the buffer assembly 3. When the number of stacked layers of materials on the belt surface 1 increases, the load on the belt surface 1 will also increase accordingly, causing the lower end of the side roller 22 to start deflecting and moving, thereby increasing the inclination angles on both sides of the belt surface 1, so as to assist in fixing the gradually increasing materials; The more the number of blanking belts, the more the stacked layers of materials, and the heavier the materials, the greater the angle by which the side roller 22 is driven to deflect, and the greater the depression amplitude generated by the cross-section of the belt surface 1, thereby realizing the adaptive increase of the depression amplitude of the belt surface 1.

[0024] In the above technical solution, the deflectable side roller 22 is used as the support for the belt surface 1. When different materials are simultaneously conveyed to the belt surface 1 by multiple blanking belts, when the two materials are stacked on the belt surface 1, the side roller 22 will deflect due to the weight of the materials, so that the depression amplitude of the belt surface 1 increases, so as to increase the slopes on both sides of the belt surface 1, making it difficult for the materials to slide out of the belt surface 1.

[0025] As an embodiment provided by the present invention, a connection seat 23 for allowing the bottom roller 21 to slide in the vertical direction is provided on the frame 11. The bottom roller 21 slides as the material load increases, so that the depression amplitude of the belt surface 1 increases adaptively.

[0026] Specifically, the bottom roller 21 can also slide vertically as the material load increases. When the material increases, the bottom roller 21 is pressed downward by the material and slides downward vertically, thereby cooperating with the deflected side roller 22 to increase the inclination angles on both sides of the belt surface 1 and the depression at the bottom, and deepen the bottom of the depression of the belt surface 1, so that the height of the stacked material decreases, further preventing the material from slipping out of the belt surface 1.

[0027] Further, the connecting seat 23 is arranged on the frame 11 through fasteners (the fasteners can be screws, bolts, etc.). A moving frame 231 is slidably connected to the connecting seat 23, and an elastic member (the elastic member can be a spring) is arranged between the two. A recessed groove 211 is formed on the bottom roller 21, and the recessed groove 211 is rotatably connected to the moving frame 231. When the material is stacked in multiple layers, the weight borne by the bottom roller 21 increases, driving the elastic member to be compressed, so that the moving frame 231 slides along the connecting seat 23, lowering the position of the bottom roller 21 to change the lowest point of the depression of the belt surface 1.

[0028] As an embodiment provided by the present invention, the side roller 22 deflects as the material load on the adjacent support frame 2 increases.

[0029] Specifically, when the material stacked on the belt surface 1 increases, the side roller 22 on the support frame 2 at the stacking position will deflect with the weight of the material. At this time, the side roller 22 at the position where there is no stacked material on the adjacent support frame 2 will also deflect slightly, thereby driving the edge of the belt surface 1 to tilt in advance when contacting the material stack to receive the subsequent material.

[0030] Further, the side roller 22 includes a deflection plate 221 and a side turning roller 222. The deflection plate 221 is rotatably connected to the side fixing frame 24. The side turning roller 222 contacts the belt surface 1, and the side turning roller 222 is rotatably connected to the deflection plate 221. An extension plate 223 is arranged on the deflection plate 221, and a lining plate 2231 for restricting the side turning roller 222 is arranged on the extension plate 223. A connecting torsion spring 4 is arranged between the adjacent deflection plates 221 on the same side. When the side roller 22 deflects with the material stack, it will drive the side roller 22 at the position where there is no stacked material on the adjacent support frame 2 to deflect slightly through the connecting torsion spring 4, achieving the effect of pre-tilting before receiving the material.

[0031] As an embodiment provided by the present invention, extension rollers 212 are coaxially and movably arranged on both sides of the bottom roller 21, and the deflection of the side roller 22 pulls the extension rollers 212 to extend.

[0032] Specifically, both sides of the bottom roller 21 are hollowly arranged, and the extension rollers 212 are movably arranged on both sides of the bottom roller 21. When the bottom roller 21 descends due to the material stack and the side roller 22 deflects due to the material stack, the deflection of the side roller 22 pulls the extension rollers 212, causing the extension rollers 212 to extend out of the bottom roller 21 to increase the bearing area of the bottom roller 21 and adapt to the continuously increasing material weight.

[0033] Further, the extension roller 212 is arranged on the bottom roller 21 through a first spring 213. The other end of the extension roller 212 is rotatably connected with a first connector 214. A second connector 2221 is rotatably connected to the side roller 22. A connecting bar 20 is hinged between the first connector 214 and the second connector 2221. When the material stack drives the side roller 22 to deflect, the side roller 22 pulls the extension roller 212 through the connecting bar 20 to extend out of the bottom roller 21 against the pulling force of the first spring 213, assisting in carrying the belt surface 1.

[0034] As an embodiment provided by the present invention, the side roller 22 on one side in the support frame 2 deflects, so that the other side roller 22 deflects along with the buffer assembly 3.

[0035] Specifically, when the deflection angles of the two side rollers 22 on the same support frame 2 differ too much, it is easy to cause the belt surface 1 to shift, affecting the transportation of materials. When the side roller 22 on one side in the support frame 2 deflects, the buffer assembly 3 will drive the other side roller 22 to deflect at the same deflection angle, so that the two side rollers 22 on the same support frame 2 are approximately symmetrically distributed, thereby reducing the shift of the belt surface 1 and maintaining the normal transportation of materials.

[0036] Further, the buffer assembly 3 includes a connecting pipe 31 containing a conduction medium 33. The connecting pipe 31 is arranged on the frame 11. Push heads are respectively arranged at both ends of the connecting pipe 31. The push heads respectively include a first push head 311 and a second push head 312. The first push head 311 abuts against the back surface of the deflection plate 221 on the side roller 22. A connecting plate 32 is fixedly arranged on the deflection plate 221. A guide groove 321 is formed on the connecting plate 32 for guiding the second push head 312. The second push head 312 abuts against the connecting plate 32 on the other deflection plate 221 of the same support frame 2. When the side roller 22 on one side deflects as the material inclines downward, it will push the first push head 311, driving the first push head 311 to retract into the connecting pipe 31 to push the conduction medium 33, so that the second push head 312 pushes the connecting plate 32 on the other deflection plate 221, making the two side rollers 22 on the same support frame 2 approximately symmetrically distributed.

[0037] Furthermore, the conduction medium 33 includes a number of balls 331. A second spring 332 is arranged between two balls 331. Using the balls 331 as the conduction medium 33, the compression stroke is not easy to occur, which can reduce the flipping error between the two side rollers 22. The second spring 332 is used to convert the point friction between the balls 331 into linear friction, reducing the local wear of the balls 331.

[0038] First, the material is conveyed by the feeding belt towards the belt surface 1. When the material is stacked on the upper layer of the belt surface 1, the side roller 22 will deflect due to the weight of the material. At the same time, the bottom roller 21 can also slide vertically as the material load increases, causing the inclination angles on both sides and the bottom depression of the belt surface 1 to increase. The deflected side roller 22 drives the connecting torsion spring 4 to drive the side roller 22 of the unstacked material on the adjacent support frame 2 to deflect slightly, realizing pre-inclination before receiving the material. When the number of feeding belts continues to increase and the material continues to be stacked, the side roller 22 pulls the extension roller 212 through the connecting bar 20 to overcome the pulling force of the first spring 213 and extend out of the bottom roller 21 to assist in bearing the belt surface 1. Moreover, the deflected deflector plate 221 pushes against the first pushing head 311 to retract into the connecting pipe 31 and push against the conductive medium 33, so that the second pushing head 312 pushes against the connecting plate 32 on another deflector plate 221, making the two side rollers 22 on the same support frame 2 approximately symmetrically distributed.

[0039] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A material transmission device for a stabilized soil mixing plant, including a conveyor belt, which respectively includes: A frame (11) and a belt surface (1), characterized in that a plurality of support frames (2) arranged in a linear array are disposed on the frame (11), which include a bottom roller (21) disposed on the frame (11) and side rollers (22) symmetrically arranged along the bottom roller (21) to limit the cross-section of the belt surface (1) to be concave; One end of the side roller (22) is rotatably connected to the frame (11), and the other end is elastically connected to the frame (11) with a buffer assembly (3). The side roller (22) deflects as the material load increases, so that the depression amplitude of the belt surface (1) increases adaptively.

2. The material transmission device for a stabilized soil mixing plant according to claim 1, characterized in that, A connecting seat (23) for allowing the bottom roller (21) to slide in the vertical direction is disposed on the frame (11). The bottom roller (21) slides as the material load increases, so that the depression amplitude of the belt surface (1) increases adaptively.

3. A material transmission device for a stabilized soil mixing plant according to claim 1, characterized in that, Materials are stacked on the belt surface (1), driving the belt surface (1) to be concave, so that the side rollers (22) and the side rollers (22) on adjacent support frames (2) deflect.

4. A material transmission device for a stabilized soil mixing plant according to claim 1, characterized in that, Materials are stacked on the belt surface (1), driving the belt surface (1) to be concave, so that the side rollers (22) on one side of the support frame (2) deflect, and the other side roller (22) deflects along with the buffer assembly (3).

5. The material transmission device for a stabilized soil mixing plant according to claim 2, characterized in that, A moving frame (231) is slidably connected to the connecting seat (23), and an elastic member is disposed between the two. The bottom roller (21) is rotatably connected to the moving frame (231).

6. The material transmission device for a stabilized soil mixing plant according to claim 2, characterized in that, Extension rollers (212) are coaxially and movably disposed on both sides of the bottom roller (21). The side rollers (22) deflect to pull the extension rollers (212) to extend.

7. A material transmission device for a stabilized soil mixing plant according to claim 3, characterized in that, The side roller (22) includes a deflection plate (221) and a side turning roller (222). A connecting torsion spring (4) is disposed between adjacent deflection plates (221) on the same side.

8. A material conveying device for a stabilized soil mixing plant according to claim 4, characterized in that, The buffer assembly (3) includes a connecting pipe (31) containing a conduction medium (33). Push heads are respectively disposed at both ends of the connecting pipe (31), and the push heads respectively abut against the two side rollers (22).

9. The material transmission device for a stabilized soil mixing plant according to claim 8, characterized in that, The conduction medium (33) includes a plurality of balls (331), and a second spring (332) is disposed between the two balls (331).

10. The material conveying device for a stabilized soil mixing plant according to claim 6, characterized in that, A first spring (213) is disposed between one end of the extension roller (212) and the bottom roller (21), and a connecting bar (20) is hinged between the other end and the side roller (22).

Images