Batching device for concrete mixing station
By setting up sand and gravel screening components and cement crushing components in the ingredients device of the concrete mixing station, the device failure and quality problems caused by large pieces of materials in cement and gravel are solved, and efficient concrete mixing effect is achieved.
Patent Information
- Application Number
- CN202510499314.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2025-07-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing concrete mixing stations, there may be mixed with raw materials that are condensed into blocks and large pieces of sand and gravel in the cement, resulting in a high failure rate of the mixing device, affecting the mixing effect and concrete quality.
A ingredient device for concrete mixing stations is designed, including a gravel ingredient box and a cement ingredient box. The gravel screening component and a cement crushing component are respectively set up. The gravel and cement are treated through screening and crushing to ensure that the raw materials before entering the mixing barrel meet the standards.
Effectively remove large pieces of sand and gravel and block cement, improve the operating reliability and finished product quality of the concrete mixing device, and avoid failures and quality problems caused by large pieces of raw materials.
Smart Images
Figure CN120245212A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of mixing devices, and particularly relates to a batching device for a concrete mixing plant. Background Art
[0002] Concrete refers to the general term for engineering composite materials in which aggregate is cemented into a whole by a cementitious material, which is formed by mixing cement, sand and gravel, and water in a specific proportion;
[0003] The following problems exist in the existing concrete mixing: the cement fed into the batching device may be mixed with agglomerated raw materials, and there may be large pieces of sand and gravel in the sand and gravel. If not screened and crushed, it will not only increase the failure rate of the concrete mixing device, but also affect the mixing effect, resulting in poor quality of the finished concrete, and then the problem of poor practicability of the concrete;
[0004] In view of this, there is an urgent need to solve the above problems with a batching device for a concrete mixing plant. Summary of the Invention
[0005] The purpose of the present invention is to provide a batching device for a concrete mixing plant to solve the above problems.
[0006] To achieve the above purpose, the present invention adopts the following technical scheme: A batching device for a concrete mixing plant, comprising:
[0007] A frame body, a sand and gravel batching box, a cement batching box and a mixing barrel. The frame body includes a support frame and a plurality of support legs. The support legs are fixedly connected to the bottom of the support frame. The sand and gravel batching box and the cement batching box are respectively fixedly connected to the support frame. The mixing barrel is located at the bottom of the support frame. A sand and gravel inlet is provided on the top wall of the sand and gravel batching box, a sand and gravel discharge pipe is provided on its bottom wall, and a sand and gravel screening assembly is provided in the sand and gravel batching box. A cement inlet is provided on the inner top wall of the cement batching box, a cement discharge pipe is provided on its bottom wall, and a cement crushing assembly is provided in the cement batching box. The lower ends of the sand and gravel discharge pipe and the cement discharge pipe respectively pass through the top wall of the mixing barrel and are fixedly connected thereto. A water inlet pipe connected to it is provided on the top wall of the mixing barrel;
[0008] A partition plate is provided in the sand and gravel batching box to divide it into a screening chamber and an installation chamber, and a screening material outlet is provided on the chamber wall of the screening chamber away from the partition plate;
[0009] The sand and gravel screening assembly includes multiple groups of fixed guide plates, multiple groups of movable guide plates, multiple double-groove pulleys and adjusting handles. The multiple groups of fixed guide plates and multiple groups of movable guide plates are arranged alternately. The two ends of the multiple groups of fixed guide plates are respectively fixedly connected to the partition plate and the wall of the screening chamber. The two ends of the movable guide plate are provided with rotating rods fixedly connected thereto. One of the rotating rods passes through the partition plate and is fixedly connected to the double-groove pulley, and the rotating rod is connected to the partition plate by a bearing. The other rotating rod is connected to the wall of the screening chamber by a bearing. The adjusting handle is located outside the sand and gravel batching box. The double-groove pulley is connected to the adjacent double-groove pulley through a transmission belt. One end of the adjusting handle passes through the side wall of the sand and gravel batching box and is fixedly connected to one of the double-groove pulleys, and the adjusting handle is threadedly connected to the sand and gravel batching box. A position locking pin threadedly connected thereto is provided on the adjusting handle.
[0010] Preferably, the fixed guide plate is inclined towards the screening material outlet, and the inclination angle of the fixed guide plate is 5-15°.
[0011] Preferably, a triangular pointing mark is provided on the adjusting handle, and circumferentially distributed spacing scales are provided on the side wall of the sand and gravel batching box close to the adjusting handle.
[0012] Preferably, the cement crushing assembly includes a driving crushing roller, at least one driven crushing roller and a crushing motor. One end of the driving crushing roller is connected to the side wall of the cement batching box by a bearing, and the other end passes through the side wall of the cement batching box and is connected to the crushing motor. The two ends of the driven crushing roller are respectively connected to the side wall of the cement batching box by bearings, and the curved side wall of the driven crushing roller abuts against the side wall of the driving crushing roller.
[0013] Preferably, funnel-shaped guide plates are respectively provided at the bottoms of the sand and gravel batching box and the cement batching box.
[0014] Preferably, the sand and gravel batching box includes an upper box body and a lower box body. The upper box body is sleeved on the lower box body, and volume scales are provided on the side wall of the lower box body.
[0015] Preferably, a U-shaped lifting frame is provided on the frame body. A lifting device is provided at the middle position of the horizontal plate body of the U-shaped lifting frame, and the other end of the lifting device is fixedly connected to the upper box body.
[0016] Preferably, the funnel-shaped guide plate includes an integrally formed inclined hopper and a longitudinal hollow column. The inclined hopper is fixedly connected inside the sand and gravel batching box. The upper end of the longitudinal hollow column is fixedly connected to the inclined hopper, and the lower end passes through and is fixedly connected to the bottom wall of the sand and gravel batching box.
[0017] Preferably, a quantitative component is provided in the sand and gravel batching box. The quantitative component includes a double-sided conical boss, a long rod, a connecting rod, an inclined plate and an elastic sleeve rod. A positioning ring integrally formed with the connecting rod is provided at the middle position of the connecting rod, and both ends of the connecting rod are respectively fixedly connected to the upper end of the inner wall of the longitudinal hollow column. The inclined plate is located at the middle position of the longitudinal hollow column. One end of the inclined plate is hinged to the inner wall of the longitudinal hollow column, and the other end is provided with a first magnetic block fixedly connected thereto. A second magnetic block matching the first magnetic block is provided on the inner wall of the longitudinal hollow column. The elastic sleeve rod is located below the inclined plate. One end of the elastic sleeve rod is fixedly connected to the side wall of the longitudinal hollow column, and the other end is in contact with the bottom wall of the inclined plate. One end of the long rod passes through the positioning ring and contacts the inclined plate, and the other end is fixedly connected to the bottom of the double-sided conical boss. The long rod is slidably connected to the positioning ring.
[0018] Preferably, a quantitative component is provided in the sand and gravel batching box. The quantitative component includes a conical boss, a long rod, a connecting rod, an inclined plate and an elastic sleeve rod. A positioning cylinder fixedly connected to the connecting rod is provided at the middle position of the connecting rod. Both ends of the connecting rod are respectively fixedly connected to the upper end of the inner wall of the longitudinal hollow column, and the end of the positioning cylinder away from the connecting rod is fixedly connected to the bottom of the conical boss. The inclined plate is located at the middle position of the longitudinal hollow column. One end of the inclined plate is hinged to the inner wall of the longitudinal hollow column, and the other end is provided with a first magnetic block fixedly connected thereto. A second magnetic block matching the first magnetic block is provided on the inner wall of the longitudinal hollow column. The elastic sleeve rod is located below the inclined plate. One end of the elastic sleeve rod is fixedly connected to the side wall of the longitudinal hollow column, and the other end is in contact with the bottom wall of the inclined plate. A displacement cavity is arranged in the conical boss, and a displacement block matching the displacement cavity is arranged in the displacement cavity. A plurality of springs fixedly connected to the bottom side wall of the displacement cavity are arranged on the bottom side wall of the displacement cavity. One end of the long rod passes through the positioning cylinder and contacts the inclined plate, and the other end passes through the conical boss and is fixedly connected to the displacement block. The long rod is respectively slidably connected to the positioning cylinder and the conical boss.
[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0020] In the present invention, different treatments are carried out on sand and gravel and cement respectively according to different ingredients. Considering that since cement has been in the cement bag for a long time, there may be a large lump of cement in the middle position of the cement bag when it is poured out. Therefore, before the cement enters the mixing barrel, the cement is preferentially ground and broken to avoid large pieces of cement directly entering the mixing barrel.
[0021] Aiming at the problem that the sizes of sand and gravel in the sand and gravel raw materials may be different, a corresponding sand and gravel screening component is provided. By controlling the distance between the fixed guide plate and the movable guide plate, the sand and gravel are directly distinguished according to the size, the large sundries or stones are screened out, and the sand and gravel raw materials of this type are guided to the screening material outlet and then discharged.
[0022] By crushing and screening cement, sand and gravel, the components that may affect the mixing effect are removed, thereby controlling the quality of the finished concrete. Description of the Drawings
[0023] Figure 1 It is a schematic diagram of the overall structure of a batching device for a concrete mixing plant;
[0024] Figure 2 It is Figure 1 An enlarged schematic diagram of part A in
[0025] Figure 3 It is a schematic diagram of the internal structure of the sand and gravel batching box in the first embodiment of the present invention;
[0026] Figure 4 It is Figure 3 An enlarged schematic diagram of part B in
[0027] Figure 5 It is a schematic diagram of the internal structure of the cement batching box in the first embodiment of the present invention;
[0028] Figure 6 It is a schematic diagram of the structure of the sand and gravel batching box in the second embodiment of the present invention;
[0029] Figure 7 It is a schematic diagram of the structure of the metering assembly in the third embodiment of the present invention;
[0030] Figure 8 It is a sectional schematic diagram of the metering assembly in the third embodiment of the present invention;
[0031] Figure 9 It is Figure 8 An enlarged schematic diagram of part C in
[0032] Figure 10 It is a sectional schematic diagram of the metering assembly in the fourth embodiment of the present invention.
[0033] In the figure: 1. Frame body; 10. Support frame; 11. Support leg; 12. U-shaped lifting frame; 120. Lifting device; 2. Sand and gravel batching box; 20. Sand and gravel inlet; 21. Sand and gravel discharge pipe; 210. Volume scale; 22. Screening chamber; 23. Installation chamber; 24. Partition board; 25. Screened material outlet; 26. Spacing scale; 27. Upper box body; 28. Lower box body; 3. Cement batching box; 30. Cement inlet; 31. Cement discharge pipe; 310. Butterfly valve; 4. Sand and gravel screening assembly; 40. Fixed guide plate; 41. Movable guide plate; 410. Rotating rod; 42. Double-groove pulley; 43. Adjusting handle; 430. Triangular pointing mark; 431. Position locking pin; 44. Transmission belt; 5. Cement crushing assembly; 50. Active crushing roller; 51. Passive crushing roller; 52. Crushing motor; 6. Funnel-shaped guide plate; 60. Oblique bin; 61. Longitudinal hollow column; 610. Second magnetic block; 7. Quantitative assembly; 70. Double-sided conical boss; 70a. Conical boss; 71. Long rod; 72. Connecting rod; 720. Positioning ring; 721. Positioning cylinder; 73. Oblique plate; 730. First magnetic block; 74. Elastic sleeve rod; 75. Displacement cavity; 76. Displacement block; 77. Spring; 9. Stirring barrel; 90. Water inlet pipe. Detailed implementation mode
[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0035] Please refer to the attached Figure 1-5 , a batching device for a concrete mixing station, comprising:
[0036] A frame body 1, a sand and gravel batching box 2, a cement batching box 3 and a stirring barrel 9. The frame body 1 includes a support frame 10 and a plurality of support legs 11. The support legs 11 are fixedly connected to the bottom of the support frame 10. The sand and gravel batching box 2 and the cement batching box 3 are respectively fixedly connected to the support frame 10. The stirring barrel 9 is located at the bottom of the support frame 10. A sand and gravel inlet 20 is provided on the top wall of the sand and gravel batching box 2, a sand and gravel discharge pipe 21 is provided on its bottom wall, and a sand and gravel screening assembly 4 is provided inside the sand and gravel batching box 2. A cement inlet 30 is provided on the inner top wall of the cement batching box 3, a cement discharge pipe 31 is provided on its bottom wall, and a cement crushing assembly 5 is provided inside the cement batching box 3. The lower ends of the sand and gravel discharge pipe 21 and the cement discharge pipe 31 respectively pass through the top wall of the stirring barrel 9 and are fixedly connected thereto. A water inlet pipe 90 connected thereto is provided on the top wall of the stirring barrel 9;
[0037] A partition plate 24 is provided inside the sand and gravel batching box 2 to divide it into a screening chamber 22 and an installation chamber 23, and a screening material outlet 25 is provided on the chamber wall of the screening chamber 22 away from the partition plate 24;
[0038] The sand and gravel screening assembly 4 includes multiple groups of fixed guide plates 40, multiple groups of movable guide plates 41, multiple double-groove pulleys 42 and an adjusting handle 43. The multiple groups of fixed guide plates 40 and multiple groups of movable guide plates 41 are arranged alternately. The two ends of each group of fixed guide plates 40 are respectively fixedly connected to the partition plate 24 and the chamber wall of the screening chamber 22. Rotating rods 410 fixedly connected thereto are provided at both ends of the movable guide plate 41. One of the rotating rods 410 passes through the partition plate 24 and is fixedly connected to the double-groove pulley 42, and the rotating rod 410 is connected to the partition plate 24 through a bearing. The other rotating rod 410 is connected to the chamber wall of the screening chamber 22 through a bearing. The adjusting handle 43 is located outside the sand and gravel batching box 2. The double-groove pulley 42 is connected to the adjacent double-groove pulley 42 through a transmission belt 44. One end of the adjusting handle 43 passes through the side wall of the sand and gravel batching box 2 and is fixedly connected to one of the double-groove pulleys 42, and the adjusting handle 43 is threadedly connected to the sand and gravel batching box 2. A position locking pin 431 threadedly connected thereto is provided on the adjusting handle 43;
[0039] Considering that in the traditional batching process of concrete, sand, gravel and cement are basically not pretreated, and in the process of concrete mixing, due to the existence of large pieces of sand, gravel and lumps of cement, the quality of the mixed concrete may not meet the standard. Therefore, before filling sand, gravel and concrete into the mixing barrel 9 in the present invention, pretreatment is carried out through the sand and gravel batching box 2 and the cement batching box 3. The sand and gravel screening assembly 4 in the sand and gravel batching box 2 screens the sand and gravel, directly screens out the large pieces of sand and gravel that do not meet the standard and removes them, and the cement crushing assembly 5 in the cement batching box 3 crushes the lumps of cement. At the same time, in order to avoid the problem of too much residue of the treated sand, gravel and concrete in the sand and gravel batching box 2 and the cement batching box 3, the setting of the frame body 1 is adopted. Through the layout of the positions of the sand and gravel batching box 2, the cement batching box 3 and the mixing barrel 9, and by using the height difference between the sand and gravel batching box 2, the cement batching box 3 and the mixing barrel 9, the purpose of filling the raw materials treated in the sand and gravel batching box 2 and the cement batching box 3 into the mixing barrel 9 is achieved. It should be noted that the design purpose of the present invention is the pretreatment of concrete materials, and the types of the mixing barrel 9 are relatively mature. It only needs to connect the sand and gravel discharge pipe 21 and the cement discharge pipe 31 to the mixing barrel 9. Most of the mixing barrels 9 on the market can be applicable to the present invention. Therefore, the mixing barrel 9 is not described in detail in the present invention.
[0040] At the same time, considering that existing sand and gravel screening mostly uses a sieve or other mesh structures to screen sand and gravel, the biggest drawback is that when some sand and gravel have sharp edges and corners, they will get stuck in the sieve holes of the sieve mesh. During the long-term use process, some of the mesh holes of the sieve mesh will gradually be blocked. It is necessary to regularly clean the sand and gravel stuck on the sieve mesh or directly replace the sieve mesh, which is time-consuming and laborious, and the maintenance cost is high in terms of labor cost, financial cost and time cost. Therefore, the present invention eliminates the method of using a sieve mesh for sand and gravel screening and instead uses a sand and gravel screening assembly 4 for screening;
[0041] The sand and gravel screening assembly 4 screens sand and gravel through the gap between the fixed guide plate 40 and the movable guide plate 41. For example, if the gap between the fixed guide plate 40 and the movable guide plate 41 is X, then the sand and gravel with a size smaller than X will directly fall into the bottom of the sand and gravel batching box 2 through the gap between the fixed guide plate 40 and the movable guide plate 41, while the sand and gravel with a size larger than X will remain between the movable guide plate 41 and the fixed guide plate 40. Under the impact of the continuously added sand and gravel, either the larger-sized sand and gravel will be broken into smaller-sized sand and gravel under the impact and then fall into the bottom of the sand and gravel batching box 2, or the larger-sized sand and gravel will move along the movable guide plate 41 in the direction away from the sand and gravel inlet 20 under the impact, avoiding accumulation below the sand and gravel inlet 20 and affecting the screening efficiency of sand and gravel;
[0042] Since the requirements for the size of sand and gravel in different concretes are also different, if the installation angles of the fixed guide plate 40 or the movable guide plate 41 are directly adjusted according to the requirements for the size of sand and gravel each time, it will also be time-consuming and laborious. Therefore, a rotating rod 410 and a double-groove pulley 42 are provided at one end of the movable guide plate 41, and adjacent double-groove pulleys 42 are connected by a transmission belt 44. By connecting the adjusting handle 43 located outside the sand and gravel batching box 2 to one of the double-groove pulleys 42, the angle of the movable guide plate 41 can be directly changed, thereby changing the gap between the movable guide plate 41 and the fixed guide plate 40. It should be noted that in the present invention, the gap for screening is formed by one side of the movable guide plate 41 and the fixed guide plate 40, and the other side of the movable guide plate 41 is in contact with the fixed guide plate 40. The side of the movable guide plate 41 in contact with the fixed guide plate 40 is hinged, or the two sides of the movable guide plate 41 can also be arranged not to be in contact with the fixed guide plate 40;
[0043] Meanwhile, to avoid small-sized sand and gravel getting stuck in the double-groove pulley 42 during the screening process, a partition plate 24 is provided in the sand and gravel batching box 2 to divide the chamber in the sand and gravel batching box 2 into a screening chamber 22 and an installation chamber 23, preventing the sand and gravel from affecting the operation of the double-groove pulley 42 during the screening process. Also, it should be noted that although theoretically the adjusting handle 43 can be fixed through the threaded connection of the rotating rod 410 with the sand and gravel batching box 2, considering that the movable guide plate 41 may rotate due to the impact of the sand and gravel, a corresponding position locking pin 431 is provided on the adjusting handle 43 to fix its position. A concave hole matching the position locking pin 431 can also be provided on the side wall of the sand and gravel batching box 2 to further enhance the locking effect of the position locking pin 431.
[0044] If both the fixed guide plate 40 and the movable guide plate 41 are horizontally arranged, the large-sized sand and gravel separated can only be displaced by the impact of other sand and gravel, so as to move away from the sand and gravel inlet 20. When there is a large amount of large-sized sand and gravel, there is still a situation where the sand and gravel accumulation reduces the screening efficiency of the sand and gravel screening assembly 4. Therefore, it is necessary to further solve the above problems on the existing basis. Considering that if other components for cleaning the accumulation are used to clean the accumulated sand and gravel, not only is the structure complex, but also this component inevitably needs to be installed in the screening chamber 22, and there is likely to be a situation where it often needs to be repaired or maintained. Therefore, the present invention makes a slight angle adjustment to the fixed guide plate 40 on the existing basis to solve this problem;
[0045] Meanwhile, considering that the gap formed by the fixed guide plate 40 and the movable guide plate 41 generally does not need to be frequently adjusted, the adjusting handle 43 is used for manual adjustment in the present invention. The adjusting handle 43 can also be replaced with an electric adjusting device or a reciprocating motor. Replacing it with an electric adjusting device can be directly controlled and adjusted through the main control console, while replacing it with a reciprocating motor can control the reciprocating rotation of the movable guide plate 41. In this case, not only can the reciprocating rotation of the movable guide plate 41 accelerate the screening of the sand and gravel, but also it can better guide the large-sized sand and gravel to move towards the screening material outlet 25.
[0046] Specifically, the fixed guide plate 40 is inclined towards the screening material outlet 25, and the inclination angle of the fixed guide plate 40 is 5 - 15°;
[0047] By adjusting the inclination direction of the fixed guide plate 40, the fixed guide plate 40 is inclined toward the screening material outlet 25. In this case, when sand and gravel fall between the fixed guide plate 40 and the movable guide plate 41, due to the height difference between the fixed guide plate 40 and the movable guide plate 41 in the inclined state, the sand and gravel will roll with the fixed guide plate 40 as the guide axis. During the rolling process, small-sized sand and gravel will fall into the sand and gravel batching box 2, while large-sized sand and gravel will roll directly to the screening material outlet 25 and be directly discharged from the sand and gravel batching box 2. This setting solves the problem of removing large-sized sand and gravel while avoiding the problem of complicated structure in the sand and gravel batching box 2.
[0048] Specifically, a triangular pointing mark 430 is provided on the adjusting handle 43, and a circularly distributed spacing scale 26 is provided on the side wall of the sand and gravel batching box 2 close to the adjusting handle 43; considering that the size of the screening gap formed between the fixed guide plate 40 and the movable guide plate 41 cannot be directly judged by the naked eye, a triangular pointing mark 430 is provided on the adjusting handle 43, and a spacing scale 26 is provided on the sand and gravel batching box 2. When it is necessary to adjust the gap between the fixed guide plate 40 and the movable guide plate 41, it is only necessary to rotate the adjusting handle 43 so that the triangular pointing mark 430 on it points to the corresponding spacing scale 26.
[0049] Specifically, the cement crushing assembly 5 includes an active crushing roller 50, at least one passive crushing roller 51 and a crushing motor 52. One end of the active crushing roller 50 is connected to the side wall of the cement batching box 3 by a bearing, and the other end passes through the side wall of the cement batching box 3 and is connected to the crushing motor 52. Both ends of the passive crushing roller 51 are respectively connected to the side wall of the cement batching box 3 by bearings, and the curved side wall of the passive crushing roller 51 abuts against the side wall of the active crushing roller 50.
[0050] Considering that even if the dry cement is solidified into blocks, its own solidification state is not firm, and some cement blocks will be broken by external impact force. Therefore, the cement crushing assembly 5 of the present invention adopts an active crushing roller 50 and a passive crushing roller 51 with a relatively simple structure to crush the cement blocks. On the premise that the cement blocks are broken by the impact with the roller body, the active crushing roller 50 and the passive crushing roller 51 further break the block-shaped cement blocks under the interaction force.
[0051] Specifically, a funnel-shaped guide plate 6 is provided at the bottom of the sand and gravel batching box 2 and the cement batching box 3 respectively; considering that if the bottom of the sand and gravel batching box 2 adopts a flat structure, then the cement and sand and gravel will not be able to be completely discharged from the sand and gravel batching box 2 or the cement batching box 3, a funnel-shaped guide plate 6 is provided at the bottom of the sand and gravel batching box 2 and the cement batching box 3 to guide the ingredients, so as to facilitate the ingredients to enter the mixing barrel 9.
[0052] Embodiment 2
[0053] Please refer to the appendix Figure 6
[0054] In the first embodiment, the sand and gravel batching box 2 and the cement batching box 3 are mainly used for continuous screening of sand and gravel or cement. The measurement of a single stirring mainly depends on the statistics during external addition, and they do not have the function of measurement by themselves. Although some mixing barrels 9 can be used for measurement, for example, the volume of a single stirring is fixed, but it is for the volume of the formed concrete and cannot achieve the quantitative ratio between the various ingredients of the concrete. Therefore, on the basis of the first embodiment, the sand and gravel batching box 2 and the cement batching box 3 are further improved.
[0055] Specifically, the sand and gravel batching box 2 includes an upper box body 27 and a lower box body 28. The upper box body 27 is sleeved on the lower box body 28, and a volume scale 210 is provided on the side wall of the lower box body 28; the sand and gravel batching box 2 adopts the way of sleeving the upper box body 27 and the lower box body 28, and the actual volume in the sand and gravel batching box 2 is changed by the different positions of the upper box body 27. At the same time, in order to further accurately control the actual application volume, a volume scale 210 is provided on the lower box body 28.
[0056] Specifically, a U-shaped lifting frame 12 is provided on the frame body 1. A lifting device 120 is provided at the middle position of the horizontal plate body of the U-shaped lifting frame 12, and the other end of the lifting device 120 is fixedly connected to the upper box body 27; considering that after the batching is filled, the gravity of the batching is concentrated at the bottom of the lower box body 28, so the position of the upper box body 27 is moved to control the actual application volume. A U-shaped lifting frame 12 and a lifting device 120 are provided on the frame body 1 to control the position of the upper box body 27. The lifting device 120 can be controlled by a winch or a hydraulic cylinder. In the attached drawings of the present invention, the hydraulic cylinder method is adopted, but it can also be replaced with a winch or other facilities with the same function. At the same time, it should be noted that although only the structure of the upper box body 27 and the lower box body 28 is emphasized for the sand and gravel batching box 2 in the present invention, the external structures of the sand and gravel batching box 2 and the cement batching box 3 are the same. Therefore, the cement batching box 3 can also adopt the same structural setting to achieve the purpose of accurately controlling the actual application volume.
[0057] Embodiment Three
[0058] Please refer to 7-9
[0059] In actual application, the sand and gravel batching box 2 with the above structure usually pre-screens the batching until the screened batching accumulates quantitatively in the sand and gravel batching box 2, and then the screened batching is poured into the mixing barrel 9 through the sand and gravel discharge pipe 21 or the cement discharge pipe 31. Therefore, the sand and gravel discharge pipe 21 or the cement discharge pipe 31 needs to have the function of short-term sealing;
[0060] Specifically, the funnel-shaped material guiding plate 6 includes an integrally formed inclined hopper 60 and a longitudinal hollow column 61. The inclined hopper 60 is fixedly connected inside the sand and gravel batching box 2. The upper end of the longitudinal hollow column 61 is fixedly connected to the inclined hopper 60, and the lower end passes through and is fixedly connected to the bottom wall of the sand and gravel batching box 2.
[0061] Specifically, a quantitative component 7 is provided inside the sand and gravel batching box 2. The quantitative component 7 includes a double-sided conical boss 70, a long rod 71, a connecting rod 72, an inclined plate 73, and an elastic sleeve rod 74. A positioning ring 710 integrally formed with it is provided at the middle position of the long rod 71. The two ends of the connecting rod 72 are respectively fixedly connected to the upper end of the inner wall of the longitudinal hollow column 61. The inclined plate 73 is located at the middle position of the longitudinal hollow column 61. One end of it is hinged to the inner wall of the longitudinal hollow column 61, and the other end is provided with a first magnetic block 730 fixedly connected to it. A second magnetic block 610 matching the first magnetic block 730 is provided on the inner wall of the longitudinal hollow column 61. The elastic sleeve rod 74 is located below the inclined plate 73. One end of the elastic sleeve rod 74 is fixedly connected to the side wall of the longitudinal hollow column 61, and the other end is in contact with the bottom wall of the inclined plate 73. One end of the long rod 71 passes through the positioning ring 710 and is in contact with the inclined plate 73, and the other end is fixedly connected to the bottom of the double-sided conical boss 70. The long rod 71 is slidably connected to the positioning ring 710;
[0062] When there is no material feeding in the sand and gravel batching box 2, under the magnetic force of the first magnetic block 730 and the second magnetic block 610 and the thrust force exerted by the elastic sleeve rod 74 when it contacts the inclined plate 73, the inclined plate 73 is in a state of closing the longitudinal hollow column 61. At this time, as the sand and gravel batching box 2 is in the process of sand and gravel accumulation, during this process, the sand and gravel falling on the double-sided conical boss 70 will fall along its conical side wall into the sand and gravel batching box 2 and gradually form a pile. When the accumulated sand and gravel exceed the height of the double-sided conical boss 70, the gravity of the continuously accumulated sand and gravel will be applied to the double-sided conical boss 70, and then this force will be applied to the inclined plate 73 through the long rod 71 until the force exceeds the magnetic connection between the first magnetic block 730 and the second magnetic block 610, forcing the inclined plate 73 to be in an open state, completing the transfer of the sand and gravel in the sand and gravel batching box 2. During this process, the falling sand and gravel continuously exert a downward force on the inclined plate 73 to ensure that the opened inclined plate 73 will not close again. At the same time, the opened inclined plate 73 also indirectly exerts an external force on the elastic sleeve rod 74 to make it in a compressed state. After the sand and gravel are basically transferred, the inclined plate 73 will reset under the elastic force of the elastic sleeve rod 74 until the first magnetic block 730 contacts the second magnetic block 610 again and completes magnetic attraction, thereby making the sand and gravel batching box 2 enter the sand and gravel piling stage again.
[0063] Embodiment 4
[0064] Please refer to the appendixFigure 10
[0065] Considering that there may be a situation where the lower end of the double-sided conical boss 70 is blocked after being filled with sand and gravel in the third embodiment, the sand and gravel accumulated on the double-sided conical boss 70 cannot push the double-sided conical boss 70 downward, resulting in the loss of function of the metering component 7. Therefore, the metering component 7 is further improved;
[0066] Specifically, a metering component 7 is provided in the sand and gravel batching box 2. The metering component 7 includes a conical boss 70a, a long rod 71, a connecting rod 72, an inclined plate 73, and an elastic sleeve rod 74. A positioning cylinder 721 fixedly connected thereto is provided at the middle position of the connecting rod 72. The two ends of the connecting rod 72 are respectively fixedly connected to the upper end of the inner wall of the longitudinal hollow column 61, and the positioning cylinder 721 is fixedly connected to the bottom of the conical boss 70a at the end away from the connecting rod 72. The inclined plate 73 is located at the middle position of the longitudinal hollow column 61. One end thereof is hinged to the inner wall of the longitudinal hollow column 61, and the other end is provided with a first magnetic block 730 fixedly connected thereto. A second magnetic block 610 matching the first magnetic block 730 is provided on the inner wall of the longitudinal hollow column 61. The elastic sleeve rod 74 is located below the inclined plate 73. One end of the elastic sleeve rod 74 is fixedly connected to the side wall of the longitudinal hollow column 61, and the other end is in contact with the bottom wall of the inclined plate 73. A displacement cavity 75 is provided in the conical boss 70a, and a displacement block 76 matching it is provided in the displacement cavity 75. A plurality of springs 77 fixedly connected thereto are provided on the bottom side wall of the displacement cavity 75. One end of the long rod 71 passes through the positioning cylinder 721 and contacts the inclined plate 73, and the other end passes through the conical boss 70a and is fixedly connected to the displacement block 76, and the long rod 71 is slidably connected to the positioning cylinder 721 and the conical boss 70a respectively;
[0067] In the fourth embodiment, the basic structure is similar to that in the third embodiment. Therefore, the basic operating principle of the metering component 7 is described in detail, and only the differences between the two are elaborated. In the fourth embodiment, in order to avoid the situation of the metering component 7 being blocked, the conical boss 70a and the positioning cylinder 721 are improved. A displacement cavity 75 and a displacement block 76 are provided in the conical boss 70a. Since the long rod 72 is located in the positioning cylinder 721 and directly passes through the conical boss 70a and is directly connected to the displacement block 76. In this setting, when the sand and gravel batching box 2 is in a full load state, the gravity of the sand and gravel indirectly applies pressure to the inclined plate 73 by pressing down the displacement block 76, thereby forcing the first magnetic block 730 and the second magnetic block 610 to be separated from contact. And during this process, the displacement of the long rod 72 and the displacement block 76 is not affected by other sand and gravel in the sand and gravel batching box 2, so the situation of being blocked will not occur.
[0068] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.
Claims
1. A batching device for a concrete mixing plant, characterized in that, Including: A frame body (1), a sand and gravel batching box (2), a cement batching box (3) and a mixing barrel (9). The frame body (1) includes a support frame (10) and a plurality of support legs (11). The support legs (11) are fixedly connected to the bottom of the support frame (10). The sand and gravel batching box (2) and the cement batching box (3) are respectively fixedly connected to the support frame (10). The mixing barrel (9) is located at the bottom of the support frame (10). A sand and gravel inlet (20) is provided on the top wall of the sand and gravel batching box (2), a sand and gravel discharge pipe (21) is provided on its bottom wall, and a sand and gravel screening assembly (4) is provided in the sand and gravel batching box (2). A cement inlet (30) is provided on the inner top wall of the cement batching box (3), a cement discharge pipe (31) is provided on its bottom wall, and a cement crushing assembly (5) is provided in the cement batching box (3). The lower ends of the sand and gravel discharge pipe (21) and the cement discharge pipe (31) respectively pass through the top wall of the mixing barrel (9) and are fixedly connected thereto. A water inlet pipe (90) connected to the mixing barrel (9) is provided on the top wall of the mixing barrel (9); A partition plate (24) that divides the sand and gravel batching box (2) into a screening chamber (22) and an installation chamber (23) is provided in the sand and gravel batching box (2), and a screening material outlet (25) is provided on the chamber wall of the screening chamber (22) away from the partition plate (24); The sand and gravel screening assembly (4) includes multiple groups of fixed guide plates (40), multiple groups of movable guide plates (41), multiple double-groove pulleys (42) and an adjusting handle (43). Multiple groups of the fixed guide plates (40) and multiple groups of the movable guide plates (41) are arranged alternately. Both ends of multiple groups of the fixed guide plates (40) are respectively fixedly connected to the partition plate (24) and the chamber wall of the screening chamber (22). Rotating rods (410) fixedly connected thereto are provided at both ends of the movable guide plate (41). One of the rotating rods (410) passes through the partition plate (24) and is fixedly connected to the double-groove pulley (42), and the rotating rod (410) is connected to the partition plate (24) by a bearing. The other rotating rod (410) is connected to the chamber wall of the screening chamber (22) by a bearing. The adjusting handle (43) is located outside the sand and gravel batching box (2). The double-groove pulley (42) is connected to the adjacent double-groove pulley (42) through a transmission belt (44); One end of the adjusting handle (43) passes through the side wall of the sand and gravel batching box (2) and is fixedly connected to one of the double-groove pulleys (42), and the adjusting handle (43) is threadedly connected to the sand and gravel batching box (2). A position locking pin (431) threadedly connected thereto is provided on the adjusting handle (43).
2. The batching device for a concrete mixing station according to claim 1, wherein: The fixed guide plate (40) is inclined towards the screening material outlet (25), and the inclination angle of the fixed guide plate (40) is 5-15°.
3. The batching device for a concrete mixing station according to claim 1, wherein: A triangular pointing mark (430) is provided on the adjusting handle (43), and circumferentially distributed spacing scales (26) are provided on the side wall of the sand and gravel batching box (2) close to the adjusting handle (43).
4. The batching device for a concrete mixing station according to claim 1, wherein: The cement crushing assembly (5) includes a driving crushing roller (50), at least one driven crushing roller (51) and a crushing motor (52). One end of the driving crushing roller (50) is connected to the side wall of the cement batching box (3) by a bearing, and the other end passes through the side wall of the cement batching box (3) and is connected to the crushing motor (52). Both ends of the driven crushing roller (51) are respectively connected to the side wall of the cement batching box (3) by bearings, and the curved side wall of the driven crushing roller (51) abuts against the side wall of the driving crushing roller (50).
5. The batching device for a concrete mixing station according to claim 1, wherein: Funnel-shaped guide plates (6) are respectively provided at the bottoms of the sand and gravel batching box (2) and the cement batching box (3).
6. The batching device for a concrete mixing station according to claim 1, wherein: The sand and gravel batching box (2) includes an upper box body (27) and a lower box body (28). The upper box body (27) is sleeved on the lower box body (28), and a volume scale (210) is provided on the side wall of the lower box body (28).
7. The batching device for a concrete mixing station according to claim 6, wherein: A U-shaped lifting frame (12) is provided on the frame body (1). A lifting device (120) is provided at the middle position of the horizontal plate body of the U-shaped lifting frame (12), and the other end of the lifting device (120) is fixedly connected to the upper box body (27).
8. The batching device for a concrete mixing station according to claim 5, wherein: The funnel-shaped guide plate (6) includes an integrally formed inclined hopper (60) and a longitudinal hollow column (61). The inclined hopper (60) is fixedly connected inside the sand and gravel batching box (2). The upper end of the longitudinal hollow column (61) is fixedly connected to the inclined hopper (60), and the lower end passes through and is fixedly connected to the bottom wall of the sand and gravel batching box (2).
9. The batching device for a concrete mixing station according to claim 5, wherein: A quantitative component (7) is provided inside the sand and gravel batching box (2). The quantitative component (7) includes a double-sided conical boss (70), a long rod (71), a connecting rod (72), an inclined plate (73) and an elastic sleeve rod (74). A positioning ring (720) integrally formed with the connecting rod (72) is provided at the middle position of the connecting rod (72). The two ends of the connecting rod (72) are respectively fixedly connected to the upper end of the inner wall of the longitudinal hollow column (61). The inclined plate (73) is located at the middle position of the longitudinal hollow column (61). One end of the inclined plate (73) is hinged to the inner wall of the longitudinal hollow column (61), and the other end is provided with a first magnetic block (730) fixedly connected thereto. A second magnetic block (610) matching the first magnetic block (730) is provided on the inner wall of the longitudinal hollow column (61). The elastic sleeve rod (74) is located below the inclined plate (73). One end of the elastic sleeve rod (74) is fixedly connected to the side wall of the longitudinal hollow column (61), and the other end contacts the bottom wall of the inclined plate (73). One end of the long rod (71) passes through the positioning ring (720) and contacts the inclined plate (73), and the other end is fixedly connected to the bottom of the double-sided conical boss (70). The long rod (71) is slidably connected to the positioning ring (720).
10. The batching device for a concrete mixing plant according to claim 5, wherein: A quantitative component (7) is provided inside the sand and gravel batching box (2). The quantitative component (7) includes a conical boss (70a), a long rod (71), a connecting rod (72), an inclined plate (73), and an elastic sleeve rod (74). A positioning cylinder (721) fixedly connected thereto is provided at the middle position of the connecting rod (72). The two ends of the connecting rod (72) are respectively fixedly connected to the upper ends of the inner walls of the longitudinal hollow columns (61), and the positioning cylinder (721) is fixedly connected to the bottom of the conical boss (70a) at the end away from the connecting rod (72). The inclined plate (73) is located at the middle position of the longitudinal hollow column (61). One end of the inclined plate (73) is hinged to the inner wall of the longitudinal hollow column (61), and a first magnetic block (730) fixedly connected thereto is provided at the other end. A second magnetic block (610) matching the first magnetic block (730) is provided on the inner wall of the longitudinal hollow column (61). The elastic sleeve rod (74) is located below the inclined plate (73). One end of the elastic sleeve rod (74) is fixedly connected to the side wall of the longitudinal hollow column (61), and the other end contacts the bottom wall of the inclined plate (73). A displacement cavity (75) is provided inside the conical boss (70a), and a displacement block (76) matching the displacement cavity (75) is provided inside the displacement cavity (75). A plurality of springs (77) fixedly connected thereto are provided on the bottom side wall of the displacement cavity (75). One end of the long rod (71) passes through the positioning cylinder (721) to contact the inclined plate (73), and the other end passes through the conical boss (70a) to be fixedly connected to the displacement block (76). The long rod (71) is slidably connected to the positioning cylinder (721) and the conical boss (70a) respectively.