A material conveying device for vehicle-mounted special cement mixing equipment

Abstract

The present application relates to the field of conveying equipment and provides a material conveying device for vehicle-mounted special cement mixing equipment, which is applied to vehicle-mounted equipment. The vehicle-mounted equipment includes a mixing device and a water storage device; it also includes several material bins, a sand and gravel bin, an additive bin, a first screw conveyor, a second screw conveyor, a belt conveyor and a weighing mechanism; a first screw conveyor is provided at the bottom of each material bin, the first screw conveyor is connected to the material bin, and the discharge end of the first screw conveyor is located above the mixing device; a belt conveyor is provided at the bottom of the sand and gravel bin, the belt conveyor has its own weighing system, and the belt conveyor is connected to the mixing device and transports sand and gravel to the mixing device; the second screw conveyor is connected to the additive bin, and the discharge end is connected to the discharge end of any first screw conveyor, and the first screw conveyor and the second screw conveyor are intermittently fed. The present application has the effect of providing an accurate proportion of special cement.

Description

Technical Field

[0001] The present application relates to the field of conveying equipment, and in particular to a material conveying device for vehicle-mounted special cement mixing equipment. Background Art

[0002] Special cement refers to a type of cement that has certain unique properties, is suitable for specific purposes, or can play a special role and give buildings special functions, including characteristic cement and special cement.

[0003] Some special cements have the characteristic of hardening quickly. If they are mixed and then transported to the construction site, the special cement is likely to harden during transportation. Therefore, it is considered to install mixing equipment on the vehicle when transporting special cement, and stir and mix the cement while moving to avoid hardening of the special cement.

[0004] However, since the transport equipment on the vehicle may experience road bumps during transportation, and the mixing of special cement requires a variety of specific materials, which must be mixed in precise proportions, the bumpy road conditions cause the amount of material discharged to be affected by the bumps and cause excess pouring, resulting in deviations in the mixing ratio of the special cement, making it difficult to obtain the accurate material ratio for mixing and molding of special cement. Summary of the Invention

[0005] In order to improve the above-mentioned problems, the present application provides a material conveying device for a vehicle-mounted special cement mixing equipment.

[0006] The present application provides a vehicle-mounted material conveying device for special cement mixing equipment that adopts the following technical solution:

[0007] A material conveying device for vehicle-mounted special cement mixing equipment is applied to the vehicle-mounted equipment, which includes a mixing equipment and a water storage equipment; it also includes several material bins, a sand and gravel bin, an additive bin, a first screw conveyor, a second screw conveyor, a belt conveyor and a weighing mechanism; a first screw conveyor is provided at the bottom of each material bin, the first screw conveyor is connected to the material bin, and the discharge end of the first screw conveyor is located above the mixing equipment; a belt conveyor is provided at the bottom of the sand and gravel bin, the belt conveyor has its own weighing system, and the belt conveyor is connected to the mixing equipment and transports sand and gravel to the mixing equipment; the second screw conveyor is connected to the additive bin, and the discharge end is connected to the discharge end of any first screw conveyor, and the first screw conveyor and the second screw conveyor are intermittently fed; the weighing mechanism is connected to the discharge end of the first screw conveyor and provides material quantification, the bottom is a mixing equipment, and the material falls into the mixing equipment after quantification.

[0008] By adopting the above technical solution, the materials in the first screw conveyor, the second screw conveyor and the material bin are accurately conveyed according to the proportion of special cement, and are transported to the weighing mechanism through the first screw conveyor and quantitatively weighed. Subsequently, the additives in the additive bin are transported to the weighing mechanism through the second screw conveyor, superimposed on the materials, and weighed. At the same time, the sand and gravel in the sand and gravel bin are synchronously weighed and conveyed by the belt conveyor, completing the overall quantitative transportation of the materials and making the proportion of special cement accurate.

[0009] Optionally, the weighing mechanism includes a weighing box, a quantitative piece and a discharge pipe; the weighing box is in a closed state, the quantitative piece is installed on the weighing box, the discharge pipe is installed at the bottom of the weighing box, and is connected to the stirring equipment; above the weighing box is a first screw conveyor or a second screw conveyor, and the discharge end of the first screw conveyor or the second screw conveyor is inserted into the weighing box.

[0010] By adopting the above technical solution, the first screw conveyor and the second screw conveyor are both connected to the feed pipe and inserted into the weighing box from top to bottom, so that the overall weighing environment is a closed environment, and the material will not be poured out or lost. After the material enters the weighing box, it is weighed and quantified by the quantitative component to achieve the quantitative ratio of the material. After the quantitative completion, the material is transported to the mixing equipment through the discharge pipe.

[0011] Optionally, the weighing mechanism is further provided with a tilting mechanism, and the tilting mechanism connects the quantitative parts of all the weighing mechanisms and synchronously drives the quantitative parts to tilt and drop materials.

[0012] By adopting the above technical solution, the tilting mechanism can tilt a single quantitative piece, and can also tilt and drop all quantitative pieces uniformly, so that the material transportation is synchronous.

[0013] Optionally, the tilting mechanism includes a moving rod, an abutment portion, a supporting portion, a reset portion, a pivot portion and a driving portion; the pivot portion passes through all weighing boxes and is pivotally connected to the weighing boxes, and all quantitative parts are connected to the pivot portion; the abutment portion is installed on the inner wall of the weighing box; the weighing box is also provided with a through hole, and the moving rod passes through the through hole and penetrates all weighing boxes; the supporting portion is installed on the moving rod, and the quantitative parts abut against the supporting portion; the reset portion is installed on the pivot portion; the driving portion is located outside the weighing box and is connected to the moving rod to drive the moving rod to move.

[0014] By adopting the above technical solution, after the material falls onto the surface of the quantitative part and reaches the proportion measurement, the driving part drives the moving rod to move, and the moving rod synchronously drives all the receiving parts to move and leave the receiving range of the quantitative part. The quantitative part loses the support of the receiving part and is tilted by the pressure of the material, and at the same time, the pivot part rotates. The tilting effect will cause the material to fall from the quantitative part to the weighing box. After the material falls, the quantitative part loses the pressure of the material, and the pivot part drives the quantitative part to rotate and reset through the resetting action of the resetting part until the quantitative part abuts against the abutting part. Then the driving part drives the moving rod in reverse to make the receiving part return to the receiving range of the quantitative part, and the quantitative part can carry out the next round of quantitative material.

[0015] Optionally, a pressing portion is further provided on the moving rod on one side of the receiving portion. When the moving rod moves, the pressing portion moves synchronously and abuts against the quantitative member.

[0016] By adopting the above technical solution, the pressing part is moved by the moving part and contacts the quantitative piece. As the moving rod moves, the inclined surface of the pressing part pushes the quantitative piece downward, so that the quantitative piece is tilted by force. In this way, the quantitative piece with a small amount of material can be tilted to achieve the purpose of unloading.

[0017] Optionally, the quantitative member is further provided with an upper pressing portion, which abuts against the lower pressing portion.

[0018] By adopting the above technical solution, when the lower pressing part contacts the upper pressing part, the lower pressing part can more easily push the quantitative member through the upper pressing part, or the pushing effect is better, so that the quantitative member can be stably tilted.

[0019] Optionally, when the moving rod is driven by the driving part, the moving rod is driven to move back and forth, and the upper pressing part and the lower pressing part are repeatedly abutted against or separated.

[0020] By adopting the above technical solution, the repeated abutment or separation between the upper pressure part and the lower pressure part can allow the quantitative part to tilt back and forth and reset along the pivot part. When resetting, the quantitative part collides with the abutment part or collides with the upper pressure part and the lower pressure part, so that the quantitative part vibrates under the reciprocating collision condition, and the material attached to the quantitative part that cannot fall off completely can be shaken off, thereby improving the accuracy of material dropping.

[0021] Optionally, a shielding rod is also provided on the moving rod, and a shielding part is slidably connected to the top surface of the weighing box. The shielding rod is connected to the shielding part. When the moving rod moves, the shielding part is synchronously driven to move and shield the discharge ends of the first screw conveyor and the second screw conveyor.

[0022] By adopting the above technical solution, when the movable rod moves, the shielding part is synchronously driven to move and shield the discharge ends of the first screw conveyor and the second screw conveyor, so that the material will not continue to fall onto the quantitative part, especially under bumpy road conditions, making the quantitative measurement of the material more accurate.

[0023] Optionally, a limiting portion is provided on the moving rod, and the limiting portion abuts against the through hole or the quantitative member to limit the moving path of the moving rod.

[0024] By adopting the above technical solution, when the limiting part moves through the moving rod, it moves to the through hole or the quantitative part so that the moving rod cannot continue to move, which plays a role in limiting the movement of the moving rod, ensuring that the movement of the moving rod will not exceed the limited range between the through hole and the quantitative part, and at the same time can speed up the positioning effect.

[0025] Optionally, a filtering mechanism is provided on the belt conveyor, which includes a filter tube, a filter fan, a filter bag and a return sand box; a number of filter bags are provided in the return sand box; the filter tube is installed in the return sand box, with one end located above the filter bag and the other end connected to the belt conveyor; the filter fan is installed on the top of the return sand box.

[0026] By adopting the above technical solution, the belt conveyor generates dust or floating fine sand when transporting sand and gravel, and the filter fan generates a suction force that creates negative pressure in the return sand box. The dust or floating fine sand is drawn into the return sand box through the filter pipe and filtered through the filter bag. The return sand box can also collect the accumulated dust or fine sand for subsequent recycling. The filtering mechanism can not only avoid the generation of dust and improve environmental protection, but also recycle the dust or fine sand and reduce the waste of sand and gravel.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. After the proportion of special cement is determined, the materials in the first screw conveyor, the second screw conveyor and the material bin are accurately conveyed and transported to the weighing mechanism through the first screw conveyor for quantitative weighing. Then, the additives in the additive bin are transported to the weighing mechanism through the second screw conveyor, superimposed on the materials for superimposed weighing. At the same time, the sand and gravel in the sand and gravel bin are synchronously weighed and transported by the belt conveyor, completing the quantitative conveying of the entire material and ensuring the accurate proportion of special cement.

[0029] 2. The first screw conveyor and the second screw conveyor are both connected with a material delivery pipe which is inserted into the weighing box from top to bottom, so that the overall weighing environment is a closed environment and the material will not be poured out or lost. After the material enters the weighing box, it is weighed and quantified by the quantitative component to achieve the quantitative proportion of the material. After the quantitative proportion is completed, the material is transported to the mixing equipment through the discharge pipe;

[0030] 3. The tilting mechanism can tilt a single quantitative piece, and can also tilt and drop all quantitative pieces uniformly, making the material transportation synchronous;

[0031] 4. After the material falls onto the surface of the quantitative part and reaches the proportion measurement, the driving unit drives the moving rod to move, and the moving rod synchronously drives all the receiving parts to move and leave the receiving range of the quantitative part. The quantitative part loses the support of the receiving part and is tilted by the pressure of the material, and at the same time, the pivot part rotates. The tilting effect will cause the material to fall from the quantitative part to the weighing box. After the material falls, the quantitative part loses the pressure of the material, and the pivot part drives the quantitative part to rotate and reset through the reset action of the reset part until the quantitative part abuts against the abutment part. Then the driving unit drives the moving rod in the reverse direction to make the receiving part return to the receiving range of the quantitative part, and the quantitative part can carry out the next round of quantitative material. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the three-dimensional structure of the vehicle-mounted equipment in some embodiments of the present application;

[0033] Figure 2 is a schematic side structural diagram of a vehicle-mounted device in some embodiments of the present application;

[0034] Figure 3 is a schematic diagram of the three-dimensional structure of the vehicle-mounted device in the front view direction in some embodiments of the present application;

[0035] Figure 4 This is a schematic diagram of the front structure of the hidden part of the vehicle-mounted device in some embodiments of the present application;

[0036] Figure 5 is a schematic cross-sectional structural diagram of a weighing mechanism in some embodiments of the present application;

[0037] Figure 6 This is a schematic diagram of a first three-dimensional structure in which the weighing mechanism is hidden on the top surface of the weighing box in some embodiments of the present application;

[0038] Figure 7 This is a schematic diagram of a second three-dimensional structure in which the weighing mechanism hides the weighing box in some embodiments of the present application;

[0039] Figure 8 is a schematic diagram of the three-dimensional structure of the moving rod in some embodiments of the present application;

[0040] Figure 9 is a schematic cross-sectional structural diagram of the motion trajectory of the upper pressing part and the lower pressing part in some embodiments of the present application;

[0041] Figure 10 is a schematic diagram of the cross-sectional structure of a weighing box in some embodiments of the present application;

[0042] Figure 11 is a schematic diagram of the exploded structure of the filtering mechanism in some embodiments of the present application;

[0043] The marks in the accompanying drawings are: 1. Vehicle-mounted equipment, 2. Mixing equipment, 3. Water storage equipment, 4. Material conveying device, 41. Material warehouse, 42. Sand and gravel warehouse, 43. Additive warehouse, 44. First screw conveyor, 45. Second screw conveyor, 46. Belt conveyor, 47. Weighing mechanism, 471. Weighing box, 4711. Through hole, 472. Quantitative part, 4721. Quantitative rack, 473. Feeding pipe, 474. Upper pressure part, 4741. Upper pressure cylinder, 4742. Upper pressure rod, 4743. Elastic structure, 47 44. Rolling structure, 475. Shielding part, 476. First magnetic part, 477. Hose, 48. Tilting mechanism, 481. Moving rod, 4811. Shielding rod, 482. Abutting part, 4821. Third magnetic part, 483. Receiving part, 484. Resetting part, 485. Pivoting part, 486. Driving part, 487. Pressing part, 488. Limiting part, 489. Second magnetic part, 49. Filtering mechanism, 491. Filter tube, 492. Filter fan, 493. Filter bag, 494. Reflux sand box. DETAILED DESCRIPTION

[0044] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the information disclosed in this application. The present application can also be implemented or applied through different specific embodiments. The details in this application can also be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless they conflict.

[0045] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0046] In the description of this application, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this application, as well as features of different embodiments or examples, unless otherwise contradictory.

[0047] Furthermore, the terms "first" and "second" are used solely to indicate a target and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this application, "plurality" means two or more, unless otherwise specifically defined.

[0048] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0049] The following is combined with Figure 1 -Attached Figure 11 , further details of this application are given.

[0050] The embodiment of the present application discloses a material conveying device for vehicle-mounted special cement mixing equipment.

[0051] A material conveying device for vehicle-mounted special cement mixing equipment, reference Figure 1 and Figure 2 As shown, it is applied to a vehicle-mounted device 1, which is a transport vehicle that transports materials, water and other resources to the required location, such as a damaged road or a damaged building. On the way, the materials and water and other resources can be mixed to form special cement.

[0052] The vehicle-mounted equipment 1 includes a mixing device 2 and a water storage device 3. The mixing device 2 includes a mixing drum, a mixing frame and a mixing motor. The mixing motor drives the mixing frame to stir the material in the mixing drum to form special cement. A cleaning nozzle can also be set in the mixing drum, and the cleaning nozzle is connected to the water storage device 3.

[0053] The water storage device 3 includes a water tank, a water pump, a water pipe and a liquid scale. The water tank provides water storage and transports water from the water pipe to the liquid scale through the water pump. After the liquid scale provides a fixed amount of water, the water valve on the liquid scale is opened to transport water into the mixing drum. The water pump can also be connected to a cleaning nozzle through the water pipe to flush the inner wall of the mixing drum.

[0054] refer to Figure 2 and Figure 3As shown, the vehicle-mounted equipment 1 also includes several material bins 41, sand and gravel bins 42, additive bins 43, a first screw conveyor 44, a second screw conveyor 45, a belt conveyor and a weighing mechanism 47. These structures belong to the material conveying device 4, which provides separate storage of materials and quantitative delivery to the mixing equipment 2 to accurately obtain the ratio of special cement.

[0055] The material bin 41 can be set according to the required material type. This application takes two material bins 41 as an example, and a first screw conveyor 44 is provided at the bottom of each material bin 41. The first screw conveyor 44 is connected to the material bin 41. The first screw conveyor 44 can transport the material in the material bin 41 by screw conveying, and the discharge end of the first screw conveyor 44 is located above the stirring device 2, so the first screw conveyor 44 can transport the material to the top of the stirring device 2.

[0056] Among them, an electronic valve is provided at the connection point between the first screw conveyor 44 and the material bin 41. After the electronic valve is opened, the material in the material bin 41 can fall into the first screw conveyor 44 to carry out quantitative material transportation.

[0057] Among them, the first screw conveyor 44 is driven by a conveying motor to rotate the internal screw conveying rod to convey the material. The conveying motor is a variable frequency and variable speed motor. According to the ratio of special cement, the speed of the conveying motor can be controlled by numerical control to adapt to the conveying speed of different materials. For example, when the amount of material is large, the speed of the conveying motor is faster. Conversely, when the required material is small, the corresponding conveying motor speed can be adaptively adjusted.

[0058] A belt conveyor 46 is provided at the bottom of the sand and gravel bin 42. Fine sand or gravel of other sizes is stored in the sand and gravel bin 42. This type of sand is not suitable for transportation by a screw conveyor, which will cause the screw conveyor to get stuck. Therefore, a belt conveyor 46 is used for transportation. The bottom of the belt conveyor 46 has its own weighing system, so that the sand and gravel can be transported in a quantitative manner when transporting. An electronic valve is also provided at the connection point between the sand and gravel bin 42 and the belt conveyor 46. When the amount of material dropped is sufficient, the electronic valve is closed, and the sand and gravel in the sand and gravel bin 42 stops falling into the belt conveyor 46.

[0059] The end of the belt conveyor 46 is connected to the mixing device 2, so the conveyed sand and gravel will eventually be conveyed to the mixing device 2 for mixing with special cement.

[0060] The belt conveyor 46 includes a protective cover to block the belt transmission path to prevent sand and gravel from falling due to bumpy road conditions, thereby improving the stability of transportation.

[0061] The second screw conveyor 45 is connected to the additive bin 43, and the discharge end is connected to the discharge end of any first screw conveyor 44, that is, the second screw conveyor 45 conveys the additive in the additive bin 43, but because the amount of additive is not large, the size of the additive bin 43 and the second screw conveyor 45 will be smaller than the material bin 41 and the first screw conveyor 44, reducing space occupancy, so there is no need to set up a separate weighing mechanism 47 for weighing, but share the same weighing mechanism 47 with any group of first screw conveyors 44, the first screw conveyor 44 and the second screw conveyor 45 are intermittent feeding, so after the first screw conveyor 44 completes the quantitative feeding, the second screw conveyor 45 starts to feed the additive again, and adds the amount of additive on the basis of the feeding amount of the first screw conveyor 44, so that the effect of separate quantitative feeding can be achieved through intermittent feeding.

[0062] Among them, the first screw conveyor 44 and the second screw conveyor 45 both transport materials from a low place to a high place. When encountering bumps and the like, the materials are restricted in the first screw conveyor 44 and the second screw conveyor 45 by gravity and cannot escape, thereby ensuring the accuracy of the amount of materials transported.

[0063] The weighing mechanism 47 is connected to the discharge end of the first screw conveyor 44 and provides material quantification. If the first screw conveyor 44 is equipped with a second screw conveyor 45, quantitative weighing of materials and additives will be provided synchronously. The bottom of the weighing mechanism 47 is the mixing device 2. When the quantification of several materials, sand and gravel and additives is completed, all materials, sand and gravel and additives fall into the mixing device 2 for mixing to form special cement.

[0064] Among them, the weighing mechanism 47 is electrically connected to the first screw conveyor 44 and the second screw conveyor 45. When the material received by the weighing mechanism 47 reaches the ratio, an electrical signal is sent to the first screw conveyor 44 or the second screw conveyor 45, and the first screw conveyor 44 or the second screw conveyor 45 stops conveying the material or additive to ensure the accuracy of the material quantity. Even in a bumpy environment, the stopped material will not overflow or be redundant.

[0065] Specifically, after the proportion of special cement, the materials in the first screw conveyor 44, the second screw conveyor 45 and the material bin 41 are accurately conveyed, and transported to the weighing mechanism 47 through the first screw conveyor 44, and quantitatively weighed. Then, the additives in the additive bin 43 are transported to the weighing mechanism 47 through the second screw conveyor 45, superimposed on the materials, and superimposed weighed. At the same time, the sand and gravel in the sand and gravel bin 42 are synchronously weighed and conveyed by the belt conveyor 46 to complete the overall quantification and transportation of the materials, so that the proportion of special cement is accurate.

[0066] For further reference, Figure 4 and Figure 5As shown, the weighing mechanism 47 includes a weighing box 471, a quantitative piece 472 and a discharge pipe 473; a number of vehicle-mounted frames are provided on the vehicle-mounted equipment 1 to provide support and installation environment, the weighing box 471 is installed on the vehicle-mounted frame of the vehicle-mounted equipment 1, and the mixing equipment 2 is below, the quantitative piece 472 is installed on the weighing box 471, and the discharge pipe 473 is installed at the bottom of the weighing box 471 and is connected to the mixing equipment 2. The weighing box 471 serves as a structure to receive the material and prevent the material from falling out. When encountering bumpy road conditions, the material is located in the weighing box 471. The weighing box 471 is a non-opening box body, so that the material will not leave the weighing box 471, thereby avoiding the material from being poured out and wasted.

[0067] The discharge pipe 473 is embedded in the weighing box 471 and serves as a conveying structure for the material after weighing and quantitative measurement. It can directly convey the material to the mixing equipment 2, which can effectively prevent the material from falling out or being lost, resulting in inaccurate material ratio. An electronic valve is provided between the discharge pipe 473 and the mixing equipment 2. After the weighing and metering is completed, the electronic valve opens, and the material in the weighing box 471 enters the mixing equipment 2 through the discharge pipe 473.

[0068] Above the weighing box 471 is the first screw conveyor 44 or the second screw conveyor 45. The top of the weighing box 471 is sealed. The first screw conveyor 44 and the second screw conveyor 45 are both connected to a material conveying pipe inserted into the weighing box 471 from top to bottom, so that the overall weighing environment is a closed environment, and the material will not be poured out or lost, thereby ensuring the accuracy of the proportioning.

[0069] refer to Figure 6 or Figure 7 As shown, the quantitative part 472 can adopt a measuring scale. There are two measuring methods for the quantitative part 472. The first is to measure the weighing box 471 as a whole, fill the weighing box 471 with materials and subtract the weight of the weighing box 471 until the material reaches the qualified material quantity, and then open the discharge pipe 473 through the electronic valve to discharge the material; the second is that the measuring scale is located in the weighing box 471. In this method, there is no need to calculate the weight of the weighing box 471. The material falls directly on the measuring scale. After reaching the qualified material quantity, the material is poured into the weighing box 471. This method is more accurate and the measuring method can be determined according to needs. The figure takes the second method as an example.

[0070] Specifically, the first screw conveyor 44 and the second screw conveyor 45 are both connected to a feed pipe inserted from top to bottom into the weighing box 471, so that the overall weighing environment is a closed environment, and the material will not be poured out or lost. After the material enters the weighing box 471, it is weighed and quantified by the quantitative component 472 to achieve the quantitative ratio of the material. After the quantitative completion, the material is transported to the mixing equipment 2 through the discharge pipe 473.

[0071] In some embodiments, the weighing mechanism 47 is further provided with a tilting mechanism 48, and the tilting mechanism 48 connects all the quantitative parts 472 of the weighing mechanism 47, and synchronously drives the quantitative parts 472 to tilt and drop materials. The tilting mechanism 48 is used to uniformly tilt and drop the quantitative parts 472. In this embodiment, the material directly falls onto the quantitative part 472. After the quantitative parts 472 are uniformly weighed, the tilting effect of the tilting mechanism 48 is used to pour the material on the quantitative part 472 into the weighing box 471, and then the discharge pipe 473 is used for transportation. The tilting mechanism 48 can not only tilt a single quantitative part 472, but also uniformly tilt and drop all the quantitative parts 472, so that the transportation of the material is synchronized, and the material falls synchronously into the stirring equipment 2 for stirring and mixing.

[0072] For further reference, Figure 5-Figure 8 As shown, the tilting mechanism 48 includes a moving rod 481, an abutment portion 482, a receiving portion 483, a reset portion 484, a pivot portion 485 and a driving portion 486; the pivot portion 485 passes through all the weighing boxes 471 and is pivotally connected to the weighing boxes 471. The pivot portion 485 can adopt a pivot shaft, the weighing boxes 471 are arranged in a line, and a pivot hole can be provided on the weighing boxes 471. The pivot shaft is inserted into the pivot hole to realize a pivot connection. All quantitative parts 472 are connected to the pivot portion 485. The connection method can be a fixed connection, so that when the pivot portion 485 rotates, all quantitative parts 472 rotate synchronously.

[0073] Among them, a wedge-shaped counterweight block can be set at the bottom of the quantitative piece 472 to make one side of the quantitative piece 472 heavier. When tilting, it will tilt according to the force direction of the counterweight block, accurately determine the tilt direction and ensure stable tilting.

[0074] The abutment portion 482 is installed on the inner wall of the weighing box 471. The abutment portion 482 can be an abutment plate. The abutment portion 482 is used to abut the upper surface of the quantitative member 472 to prevent the quantitative member 472 from rotating beyond the equilibrium position following the pivot portion 485, providing a limiting effect on the quantitative member 472 in the pivot direction.

[0075] The weighing box 471 is also provided with a through hole 4711, and the moving rod 481 passes through the through hole 4711 and penetrates all the weighing boxes 471. The diameter of the moving rod 481 is less than or equal to the through hole 4711, so that the moving rod 481 can move along the through hole 4711, and the moving rod 481 passes through the through holes 4711 of all the weighing boxes 471, so that the moving rod 481 moves in all the weighing boxes 471, and the hole wall of the through hole 4711 can serve as the bearing point of the moving rod 481 to ensure the movement stability of the moving rod 481.

[0076] Among them, the through hole 4711 is a square hole, and the moving rod 481 is synchronously a square rod, that is, the cross-section is square or rectangular, and the style matches the square hole. The square shape can prevent the moving rod 481 from rotating along the through hole 4711, further improving the stability of the connection.

[0077] The receiving portion 483 is installed at the bottom of the moving rod 481, and the quantitative member 472 is abutted against the receiving portion 483. The load-bearing portion is used to support the quantitative member 472. One end of the quantitative member 472 is connected by a pivot portion 485 to provide a supporting effect at one end, and the other end is supported by the receiving portion 483 to provide a supporting effect at the other end. The receiving portion 483 and the pivot portion 485 are located on the same horizontal plane, so that the quantitative member 472 is in a horizontal state to ensure that when the quantitative member 472 receives the material, the material can be stably located on the quantitative member 472. The receiving portion 483 can adopt a number of receiving plates with a preset distance between them. In this embodiment, two receiving plates are taken as an example. Relatively speaking, the top surface of the quantitative member 472 can extend out of the quantitative frame 4721 corresponding to the receiving plate, and the quantitative frame 4721 can be placed on the receiving plate, so that the receiving of the quantitative member 472 is stable, and the number of quantitative frames 4721 is consistent with the receiving plate.

[0078] The thickness of the moving rod 481 is greater than that of the quantitative member 472 , and the receiving portion 483 is located at the bottom of the moving rod 481 , so that the receiving portion 483 can stably receive the quantitative frame 4721 extending from the top surface of the quantitative member 472 .

[0079] Among them, guardrails can be set around the corners of the upper surface of the quantitative member 472 to prevent the falling material from falling out of the metering range of the quantitative member 472.

[0080] refer to Figure 6 and Figure 7 As shown, the reset part 484 is installed on the pivot part 485. The reset part 484 can adopt a torsion spring for reset, that is, a spiral spring. The reset part 484 can be connected to the inner wall surface of the weighing box 471 as a bearing point for winding, and provide elastic force for the pivot part 485 to rewind and reset.

[0081] The driving part 486 is located outside the weighing box 471 and is connected to the moving rod 481 to drive the moving rod 481 to move. The driving part 486 can adopt a driving element with telescopic function such as a cylinder and an electric push rod. The telescopic effect of the driving part 486 can drive the moving rod 481 to move along the through hole 4711.

[0082] Among them, the receiving portion 483 can be higher than the horizontal state of the quantitative piece 472, so that when the quantitative piece 472 is subjected to the gravity of the material, the quantitative piece 472 exceeds the horizontal state to abut against the receiving portion 483, thereby making the quantitative piece 472 slightly tilted toward the pivot portion 485, with an inclination angle of about 5°. This state can prevent the material from rolling toward the direction of the quantitative piece 472, and provide more stable stacking and weighing of the material.

[0083] The material is transported by the first screw conveyor 44 and the second screw conveyor 45 and falls to the surface of the quantitative member 472. After the quantitative member 472 is quantitatively measured and the proportion is reached, the driving part 486 drives the moving rod 481 to move. The moving rod 481 simultaneously drives all the receiving parts 483 to move and leave the receiving range of the quantitative member 472. The quantitative member 472 loses the support of the receiving part 483 and is affected by the pressure of the material. It tilts from one end of the receiving part 483 and causes the pivot part 485 to rotate. The tilting effect causes the material to fall from the quantitative member 472 to the weighing box 471. After falling, the quantitative member 472 loses the pressure of the material. The pivot part 485 drives the quantitative member 472 to rotate and reset through the resetting action of the resetting part 484 until the quantitative member 472 abuts against the abutting part 482. Then the driving part 486 drives the moving rod 481 in the opposite direction to make the receiving part 483 return to the receiving range of the quantitative member 472, and the quantitative member 472 can carry out the next round of quantitative material.

[0084] Further, refer to Figure 8 and Figure 9 As shown, a pressing portion 487 is further provided on the moving rod 481 on one side of the receiving portion 483. The pressing portion 487 can be an inverted triangular wedge-shaped pressing block and is located at the top of the moving rod 481. When the quantitative piece 472 receives the material, it is staggered with the quantitative piece 472 and does not contact the quantitative piece 472. When the moving rod 481 moves, the pressing portion 487 moves synchronously and abuts against the quantitative piece 472. The main purpose of this method is to push the quantitative piece 472 to tilt.

[0085] If it is necessary to replenish some materials, the amount of replenished materials is usually not large. After the materials are transported by the first screw conveyor 44 and the second screw conveyor, it is sometimes difficult for the replenished materials to have enough downward pressure to make the quantitative piece 472 overcome the reset force of the reset part 484 and tilt. Therefore, the downward pressure part 487 is moved by the moving part and contacts the quantitative piece 472. As the moving rod 481 moves, the inclined surface of the downward pressure part 487 pushes the quantitative piece 472 downward, so that the quantitative piece 472 is tilted by force. In this way, the quantitative piece 472 with a small amount of material can be tilted to achieve the purpose of unloading.

[0086] Among them, the pressing portion 487 is located at the top of the moving rod 481 and extends out. The thickness of the moving rod 481 is greater than the thickness of the quantitative piece 472, so that the pressing portion 487 is located above the quantitative piece 472 and abuts against the quantitative frame 4721 of the quantitative piece 472. When the pressing portion 487 is staggered with the quantitative piece 472, the receiving portion 483 abuts against the quantitative frame 4721 of the quantitative piece 472.

[0087] However, the figure does not show the diagram of the lower pressing portion 487 abutting against the quantitative frame 4721.

[0088] Further, refer to Figure 6 and Figure 9 As shown, the quantitative member 472 is further provided with an upper pressure portion 474, which abuts against the lower pressure portion 487. The upper pressure portion 474 can be installed on the top of the quantitative frame 4721 of the quantitative member 472, so that when the lower pressure portion 487 contacts the upper pressure portion 474, the lower pressure portion 487 can more easily push the quantitative member 472 through the upper pressure portion 474, or the pushing effect is better.

[0089] The upper pressure part 474 may include an upper pressure cylinder 4741, an upper pressure rod 4742, an elastic structure 4743 and a rolling structure 4744; the rolling structure 4744 is connected to the upper pressure rod 4742, and the rolling structure 4744 may adopt a spherical roller, or a rolling ball, and the connection method is a pivot connection. The elastic structure 4743 is located in the upper pressure cylinder 4741, and the upper pressure rod 4742 is inserted into the upper pressure rod 4742 and connected to the elastic structure 4743, so that the elastic structure 4743 provides elastic force for the upper pressure rod 4742 to extend outward.

[0090] When the lower pressing part 487 contacts the rolling structure 4744 of the upper pressing part 474, the rolling structure 4744 can reduce the friction force of the contact, and the rolling structure 4744 rolls along the inclined surface of the lower pressing part 487. During the rolling process, the upper pressing rod 4742 is forced to extend into the upper pressing cylinder 4741, and the upper pressing rod 4742 synchronously squeezes the elastic structure 4743. The elastic structure 4743 generates an elastic force in the opposite direction, so that the quantitative part 472 is subjected to the elastic force and thrust, and tilts along the pivot part 485 to achieve the effect of pushing the quantitative part 472.

[0091] Through the structure of the upper pressure part 474, the elastic force of the elastic structure 4743 can be used to make the quantitative part 472 easier to overcome the reset elastic force of the reset part 484 and tilt. At the same time, the flexible contact of the elastic structure 4743 makes the contact between the upper pressure part 474 and the lower pressure part 487 softer, which can prevent damage and extend the service life.

[0092] Among them, the outer wall of the upper pressure cylinder 4741 of the upper pressure part 474 can be provided with an external thread, and the quantitative frame 4721 can be opened with a threaded opening running through the upper and lower parts. The upper pressure cylinder 4741 is screwed to the threaded opening through the external thread, and the position of the upper pressure cylinder 4741 in the vertical direction can be adjusted through the threaded opening. In this way, the upper pressure cylinder 4741 can replace the quantitative frame 4721 to abut against the receiving part 483. As the position of the upper pressure cylinder 4741 is different, the receiving height when abutting against the receiving part 483 is different, which is used to adjust or adapt the inclination angle of the quantitative part 472. At the same time, it is also convenient to remove the upper pressure part 474 to replace or repair the upper pressure part 474 (the threaded opening is covered by the upper pressure cylinder in the figure, and the threaded opening is not shown).

[0093] Among them, the upper pressure part 474 is installed on the quantitative frame 4721. When the quantitative part 472 is reset, it can replace the quantitative frame 4721 to contact the abutment part 482. At the same time, the elastic force of the elastic structure 4743 can be used to provide a buffering effect to prevent the quantitative part 472 from colliding with the abutment part 482 when it is reset and being subjected to excessive force, causing damage.

[0094] When the upper pressing portion 474 is provided, the wedge-shaped pressing block used in the lower pressing portion 487 can be connected to the L-shaped frame, so that the wedge-shaped pressing block can be higher than the upper pressing cylinder 4741 of the upper pressing portion 474, thereby pressing down the rolling structure 4744 to achieve a pushing effect.

[0095] Among them, in order to increase the stability of the lower pressing part 487, a T-shaped limiting groove can be opened on the bottom surface of the abutting part 482, and a T-shaped sliding protrusion is set on the top surface of the lower pressing part 487. The sliding protrusion is embedded in the T-shaped limiting groove, so that the bottom of the lower pressing part 487 is connected to the moving rod 481, and the top is slidably connected to the T-shaped limiting groove through the sliding protrusion. When the moving rod 481 moves, the sliding protrusion moves along the limiting groove. The lower pressing part 487 ensures the stable connection of the lower pressing part 487 through the supporting effect of the upper and lower ends, and will not be offset or damaged when it contacts or collides with the upper pressing part 474 (the structure is covered in the figure, so the limiting groove and sliding protrusion are not shown).

[0096] Among them, when the moving rod 481 is driven by the driving part 486, the moving rod 481 is driven to move back and forth, and a certain speed can be increased during the reciprocating movement, so that the upper pressure part 474 and the lower pressure part 487 are subjected to a greater thrust to repeatedly abut or separate. This method can allow the quantitative part 472 to tilt and reset back and forth along the pivot part 485. When resetting, the quantitative part 472 collides with the abutment part 482 or collides with the upper pressure part 474 and the lower pressure part 487, so that the quantitative part 472 vibrates under the reciprocating collision condition, and the material attached to the quantitative part 472 that cannot fall off completely can be shaken off, thereby improving the accurate dropping of the material.

[0097] The elastic structure 4743 provided on the upper pressing portion 474 can generate elastic force, so that the arc of vibration generated by the impact is larger, and the material is easier to fall.

[0098] Furthermore, refer to Figure 7-Figure 9 As shown, a first magnetic portion 476 is further provided on the upper pressing portion 474 , and a second magnetic portion 489 is further provided on the lower pressing portion 487 , and the first magnetic portion 476 and the second magnetic portion 489 have the same magnetic poles in relative directions.

[0099] The first magnetic attraction portion 476 and the second magnetic attraction portion 489 can both be magnets, which can be set as permanent magnets or electromagnets according to needs. The first magnetic attraction portion 476 and the second magnetic attraction portion 489 have the same magnetic poles. According to the principle that like poles repel, when the upper pressure portion 474 and the lower pressure portion 487 come into contact, the first magnetic attraction portion 476 and the second magnetic attraction portion 489 will be subjected to mutually repelling magnetic forces. The repulsive force has two uses here.

[0100] The first use can increase the thrust of the upper pressing part 474 and the lower pressing part 487 to push the quantitative member 472. When the upper pressing part 474 and the lower pressing part 487 contact each other, they generate mutually repulsive magnetic forces, which are converted into thrust, making it easier for the quantitative member 472 to be pushed away and tilted along the pivot part 485.

[0101] The second purpose is to provide a buffering effect, that is, when the moving rod 481 moves back and forth, the quantitative member 472 will inevitably be reset by the reset part 484. When resetting, the upper pressure part 474 hits the lower pressure part 487, which can easily damage both of them. Therefore, the repulsive force with the same magnetic pole can buffer the impact force of the quantitative member 472 and reduce the force applied when the upper pressure part 474 and the lower pressure part 487 collide.

[0102] The first magnetic attraction part 476 can be set at the top of the upper pressure cylinder 4741, and the second magnetic attraction part 489 can be set to the top surface embedded in the lower pressure part 487. The rolling structure 4744 can not only roll along the second magnetic attraction part 489, but also generate a magnetic force that repels the first magnetic attraction part 476.

[0103] Among them, reference Figure 7 As shown, the abutting portion 482 may also be provided with a third magnetic portion 4821, and the magnetic pole of the third magnetic portion 4821 is opposite to the magnetic pole of the first magnetic portion 476. When the receiving portion 483 receives the quantitative piece 472, the first magnetic portion 476 and the third magnetic portion 4821 gradually approach each other. According to the principle of opposite poles attracting each other, the receiving portion 483 and the quantitative piece 472 can be stably magnetically connected to improve the stability of the connection.

[0104] In some embodiments, reference Figure 7 or Figure 8As shown, a limit portion 488 is provided on the moving rod 481, and the limit portion 488 abuts against the through hole 4711 or the quantitative member 472 to limit the movement path of the moving rod 481. The limit portion 488 can adopt a limit block, and a group of limit portions 488 can be provided. When the limit portion 488 moves through the moving rod 481 and moves to the through hole 4711 or the quantitative frame 4721 of the quantitative member 472, the moving rod 481 is stuck and cannot continue to move, thereby limiting the movement of the moving rod 481 and ensuring that the movement of the moving rod 481 does not exceed the limited range between the through hole 4711 and the quantitative frame 4721. At the same time, the positioning effect can be accelerated. For example, when the limit portion 488 contacts the receiving portion 483 and the quantitative frame 4721 of the quantitative member 472, it cannot continue to move, which means that the receiving portion 483 can be connected with the quantitative member 472, thereby accelerating the positioning.

[0105] In some embodiments, reference Figure 8 and Figure 10 As shown, a shielding rod 4811 is also provided on the moving rod 481, and the shielding rod 4811 can be an L-shaped rod, so that the shielding rod 4811 can bypass the abutment part 482, and there will be no interference between the two. The top surface of the weighing box 471 is slidably connected with the shielding part 475, that is, a slide groove is opened on the top surface of the weighing box 471, and the shielding part 475 slides along the slide groove. The shielding rod 4811 is connected to the shielding part 475. When the moving rod 481 moves, the shielding part 475 is synchronously driven to move and block the discharge end of the first screw conveyor 44 and the second screw conveyor 45, so that the material will not continue to fall onto the quantitative part 472, especially under bumpy road conditions, so that the quantitative quantity of the material is more accurate.

[0106] In some embodiments, reference Figure 5 As shown, a hose 477 is provided between the weighing mechanism 47 and the stirring device 2. The hose 477 connection means that it can be softly connected. This method can avoid blockage during material dropping, increase the smoothness of physical material dropping, and also facilitate separation, maintenance or replacement.

[0107] In some embodiments, reference Figure 1 and Figure 11 As shown, since the belt conveyor 46 is prone to dust or fine sand floating when transporting sand and gravel, in order to avoid dust or fine sand floating, a filtering mechanism 49 is provided on the belt conveyor 46, and the filtering mechanism 49 includes a filter tube 491, a filter fan 492, a filter bag 493 and a return sand box 494; the return sand box 494 is also installed on the vehicle-mounted frame of the vehicle-mounted equipment 1, and is provided with a plurality of filter bags 493 inside. The filter bags 493 filter the dust or fine sand, and the return sand box 494 collects the filtered dust or fine sand for subsequent return and reuse.

[0108] The filter tube 491 is installed in the return sand box 494, and one end is located above the filter bag 493, and the other end is connected to the belt conveyor 46. The filter tube 491 is used to connect the return sand box 494 with the belt conveyor 46. The filter fan 492 is installed on the top of the return sand box 494 to generate negative pressure inside the return sand box 494, so that the filter tube 491 can use the negative pressure effect to draw the dust or floating fine sand generated on the belt conveyor 46 into the return sand box 494.

[0109] Specifically, the belt conveyor 46 generates dust or floating fine sand when transporting sand and gravel. The filter fan 492 generates a suction force that creates negative pressure in the return sand box 494. The dust or floating fine sand is drawn into the return sand box 494 through the filter tube 491 and filtered through the filter bag 493. The return sand box 494 can also collect the accumulated dust or fine sand for subsequent recycling. The filtering mechanism 49 can not only avoid the generation of dust and improve environmental protection, but also recycle the dust or fine sand to reduce the waste of sand and gravel.

[0110] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A material conveying device for a vehicle-mounted special cement mixing equipment, applied to the vehicle-mounted equipment (1), the vehicle-mounted equipment (1) comprising a mixing device (2) and a water storage device (3), characterized in that: The invention also includes a plurality of material bins (41), a sand and gravel bin (42), an additive bin (43), a first screw conveyor (44), a second screw conveyor (45), a belt conveyor and a weighing mechanism (47); a first screw conveyor (44) is provided at the bottom of each material bin (41), the first screw conveyor (44) is in communication with the material bin (41), and the discharge end of the first screw conveyor (44) is located above the mixing device (2); a belt conveyor (46) is provided at the bottom of the sand and gravel bin (42), the belt conveyor (46) has its own weighing system, and the belt conveyor (46) is in communication with the mixing device (2) and conveys sand and gravel to the mixing device (2); The second screw conveyor (45) is in communication with the additive bin (43), and the discharge end is connected to the discharge end of any first screw conveyor (44), and the first screw conveyor (44) and the second screw conveyor (45) are intermittently fed; the weighing mechanism (47) is connected to the discharge end of the first screw conveyor (44) and provides material quantification, and the bottom is a stirring device (2), and the material falls into the stirring device (2) after quantification; wherein the weighing mechanism (47) includes a weighing box (471), a quantitative component (472) and a discharge pipe (473); the weighing box (471) is in a closed state, the quantitative component (472) is installed on the weighing box (471), and the discharge pipe (473) It is installed at the bottom of the weighing box (471) and connected to the stirring device (2); the first screw conveyor (44) or the second screw conveyor (45) is located above the weighing box (471), and the discharge end of the first screw conveyor (44) or the second screw conveyor (45) is inserted into the weighing box (471); the weighing mechanism (47) A tilting mechanism (48) is also provided, and the tilting mechanism (48) connects the quantitative parts (472) of all the weighing mechanisms (47) and synchronously drives the quantitative parts (472) to tilt and drop materials; the tilting mechanism (48) includes a moving rod (481), an abutting portion (482), a receiving portion (483), a reset portion (484), a pivoting portion (485) and a driving portion (486); the pivoting portion (485) passes through all the weighing boxes (471) and is pivotally connected to the weighing boxes (471), and all the quantitative parts (472) are connected to the pivoting portion (485); the abutting portion (482) is installed on the inner wall of the weighing box (471); the weighing box (471) is also provided with a through hole (4711), and the moving rod (481) passes through the through hole (4711) and penetrates all the weighing boxes (471); the receiving portion (483) is installed on the moving rod (481) and the moving rod (481) passes through the through hole (4711) and penetrates all the weighing boxes (471); The movable rod (481) is mounted on the movable rod (481), and the quantitative member (472) is in contact with the receiving portion (483); the reset portion (484) is mounted on the pivot portion (485); the driving portion (486) is located outside the weighing box (471) and is connected to the movable rod (481) to drive the movable rod (481) to move; a lower pressing portion (487) is further provided on the movable rod (481) on one side of the receiving portion (483); when the movable rod (481) moves, the lower pressing portion (487) moves synchronously and is in contact with the quantitative member (472); the quantitative member (472) is further provided with an upper pressing portion (474), and the upper pressing portion (474) is in contact with the lower pressing portion (487); when the movable rod (481) is driven by the driving portion (486), the movable rod (481) is driven to move back and forth, and the upper pressing portion (474) and the lower pressing portion (487) are repeatedly in contact with or separated from each other.

2. A vehicle-mounted material conveying device for special cement mixing equipment according to claim 1, characterized in that: The moving rod (481) is further provided with a shielding rod (4811), the top surface of the weighing box (471) is slidably connected to a shielding portion (475), and the shielding rod (4811) is connected to the shielding portion (475). When the moving rod (481) moves, the shielding portion (475) is synchronously driven to move and shield the discharge ends of the first screw conveyor (44) and the second screw conveyor (45).

3. The material conveying device for vehicle-mounted special cement mixing equipment according to claim 1, characterized in that: The moving rod (481) is provided with a limiting portion (488), which abuts against the through hole (4711) or the quantitative member (472) to limit the moving path of the moving rod (481).

4. The material conveying device for vehicle-mounted special cement mixing equipment according to claim 1, characterized in that: A filter mechanism (49) is provided on the belt conveyor (46), and the filter mechanism (49) includes a filter tube (491), a filter fan (492), a filter bag (493) and a return sand box (494); a plurality of filter bags (493) are provided in the return sand box (494); the filter tube (491) is installed in the return sand box (494), and one end of the filter tube is located above the filter bag (493), and the other end is connected to the belt conveyor (46); the filter fan (492) is installed on the top of the return sand box (494).

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